./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-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_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 fb906b6dd506785279c111a847f91453236e370a ........................................................................................................................................................................................................................................................................................................................ 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_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 fb906b6dd506785279c111a847f91453236e370a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 04:25:37,947 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:25:37,948 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:25:37,954 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:25:37,955 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:25:37,955 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:25:37,956 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:25:37,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:25:37,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:25:37,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:25:37,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:25:37,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:25:37,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:25:37,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:25:37,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:25:37,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:25:37,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:25:37,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:25:37,963 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:25:37,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:25:37,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:25:37,965 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:25:37,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:25:37,966 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:25:37,966 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:25:37,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:25:37,967 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:25:37,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:25:37,968 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:25:37,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:25:37,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:25:37,969 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:25:37,969 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:25:37,969 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:25:37,970 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:25:37,970 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:25:37,970 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 04:25:37,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:25:37,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:25:37,978 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:25:37,978 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:25:37,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:25:37,979 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 04:25:37,979 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:25:37,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:25:37,980 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:25:37,980 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 04:25:37,980 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:25:37,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:25:37,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:25:37,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:25:37,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 04:25:37,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:25:37,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 04:25:37,983 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 04:25:37,983 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_40836871-5543-4c68-b6d5-07a6822cb6b3/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 -> fb906b6dd506785279c111a847f91453236e370a [2018-12-03 04:25:38,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:25:38,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:25:38,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:25:38,010 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:25:38,010 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:25:38,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:38,047 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/43ea9f79b/52b896afb54a47a2b54ef5daba44f5e7/FLAG342385911 [2018-12-03 04:25:38,502 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:25:38,503 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:38,508 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/43ea9f79b/52b896afb54a47a2b54ef5daba44f5e7/FLAG342385911 [2018-12-03 04:25:38,518 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/43ea9f79b/52b896afb54a47a2b54ef5daba44f5e7 [2018-12-03 04:25:38,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:25:38,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:25:38,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:25:38,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:25:38,524 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:25:38,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f49b694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38, skipping insertion in model container [2018-12-03 04:25:38,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:25:38,542 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:25:38,651 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:25:38,654 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:25:38,673 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:25:38,688 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:25:38,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38 WrapperNode [2018-12-03 04:25:38,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:25:38,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:25:38,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:25:38,689 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:25:38,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:25:38,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:25:38,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:25:38,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:25:38,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... [2018-12-03 04:25:38,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:25:38,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:25:38,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:25:38,753 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:25:38,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 04:25:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 04:25:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 04:25:38,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:25:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 04:25:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-03 04:25:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 04:25:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 04:25:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 04:25:38,929 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:25:38,929 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 04:25:38,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:38 BoogieIcfgContainer [2018-12-03 04:25:38,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:25:38,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:25:38,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:25:38,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:25:38,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:25:38" (1/3) ... [2018-12-03 04:25:38,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e33e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:25:38, skipping insertion in model container [2018-12-03 04:25:38,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:38" (2/3) ... [2018-12-03 04:25:38,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e33e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:25:38, skipping insertion in model container [2018-12-03 04:25:38,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:38" (3/3) ... [2018-12-03 04:25:38,934 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:38,939 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:25:38,944 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:25:38,953 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:25:38,969 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:25:38,970 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:25:38,970 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:25:38,970 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:25:38,970 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:25:38,970 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:25:38,970 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:25:38,970 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:25:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-03 04:25:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 04:25:38,983 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:38,983 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:25:38,985 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:38,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:38,988 INFO L82 PathProgramCache]: Analyzing trace with hash 263185431, now seen corresponding path program 1 times [2018-12-03 04:25:38,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:25:39,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:25:39,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:39,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:25:39,016 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:25:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:39,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:39,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 04:25:39,062 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:25:39,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 04:25:39,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 04:25:39,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 04:25:39,073 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-03 04:25:39,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:39,086 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-12-03 04:25:39,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 04:25:39,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-03 04:25:39,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:39,092 INFO L225 Difference]: With dead ends: 78 [2018-12-03 04:25:39,092 INFO L226 Difference]: Without dead ends: 39 [2018-12-03 04:25:39,094 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 [2018-12-03 04:25:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-03 04:25:39,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-03 04:25:39,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 04:25:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-12-03 04:25:39,116 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-12-03 04:25:39,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:39,116 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-12-03 04:25:39,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 04:25:39,116 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-12-03 04:25:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 04:25:39,117 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:39,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:25:39,117 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:39,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1491196875, now seen corresponding path program 1 times [2018-12-03 04:25:39,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:25:39,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:25:39,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:39,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:25:39,118 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:25:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 04:25:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 04:25:39,171 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 04:25:39,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:25:39 BoogieIcfgContainer [2018-12-03 04:25:39,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:25:39,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:25:39,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:25:39,187 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:25:39,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:38" (3/4) ... [2018-12-03 04:25:39,189 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 04:25:39,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:25:39,190 INFO L168 Benchmark]: Toolchain (without parser) took 669.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -119.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,191 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:25:39,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.58 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.91 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,192 INFO L168 Benchmark]: Boogie Preprocessor took 48.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,192 INFO L168 Benchmark]: RCFGBuilder took 176.49 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,193 INFO L168 Benchmark]: TraceAbstraction took 257.00 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:39,193 INFO L168 Benchmark]: Witness Printer took 2.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:25:39,195 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.58 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.91 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.49 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 257.00 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: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of bitwiseAnd at line 21, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450948, huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000, x=6442450950] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450950] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450950] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450950] [L77] RET, EXPR ceil_float(x) VAL [ceil_float(x)=6442450947, huge_ceil=1000000000000000000000000000000, x=6442450950] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=6442450947, res == -0.0f && __signbit_float(res) == 1=0, x=6442450950] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450947, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2018-12-03 04:25:40,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:25:40,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:25:40,564 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:25:40,564 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:25:40,564 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:25:40,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:25:40,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:25:40,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:25:40,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:25:40,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:25:40,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:25:40,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:25:40,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:25:40,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:25:40,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:25:40,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:25:40,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:25:40,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:25:40,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:25:40,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:25:40,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:25:40,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:25:40,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:25:40,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:25:40,580 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:25:40,581 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:25:40,581 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:25:40,582 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:25:40,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:25:40,583 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:25:40,583 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:25:40,583 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:25:40,583 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:25:40,584 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:25:40,584 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:25:40,584 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 04:25:40,595 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:25:40,595 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:25:40,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:25:40,596 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:25:40,596 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:25:40,596 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:25:40,596 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:25:40,596 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:25:40,597 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:25:40,597 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:25:40,597 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:25:40,597 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:25:40,597 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:25:40,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:25:40,598 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:25:40,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:25:40,599 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:25:40,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:25:40,600 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 04:25:40,600 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:25:40,600 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 04:25:40,600 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 04:25:40,600 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_40836871-5543-4c68-b6d5-07a6822cb6b3/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 -> fb906b6dd506785279c111a847f91453236e370a [2018-12-03 04:25:40,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:25:40,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:25:40,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:25:40,632 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:25:40,632 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:25:40,633 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:40,667 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/5b5c4830e/21bc14c1646b42abb3c6bbc8799cfa1c/FLAGa98d69d6f [2018-12-03 04:25:40,985 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:25:40,985 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:40,989 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/5b5c4830e/21bc14c1646b42abb3c6bbc8799cfa1c/FLAGa98d69d6f [2018-12-03 04:25:40,998 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/data/5b5c4830e/21bc14c1646b42abb3c6bbc8799cfa1c [2018-12-03 04:25:40,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:25:41,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:25:41,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:25:41,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:25:41,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:25:41,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:25:40" (1/1) ... [2018-12-03 04:25:41,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41, skipping insertion in model container [2018-12-03 04:25:41,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:25:40" (1/1) ... [2018-12-03 04:25:41,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:25:41,020 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:25:41,115 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:25:41,118 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:25:41,135 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:25:41,150 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:25:41,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41 WrapperNode [2018-12-03 04:25:41,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:25:41,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:25:41,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:25:41,151 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:25:41,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:25:41,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:25:41,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:25:41,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:25:41,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... [2018-12-03 04:25:41,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:25:41,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:25:41,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:25:41,224 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:25:41,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 04:25:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:25:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 04:25:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 04:25:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-03 04:25:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-03 04:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 04:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 04:25:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 04:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 04:25:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 04:25:41,504 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:25:41,660 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 04:25:41,666 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:25:41,666 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 04:25:41,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:41 BoogieIcfgContainer [2018-12-03 04:25:41,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:25:41,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:25:41,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:25:41,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:25:41,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:25:40" (1/3) ... [2018-12-03 04:25:41,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba5eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:25:41, skipping insertion in model container [2018-12-03 04:25:41,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:25:41" (2/3) ... [2018-12-03 04:25:41,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba5eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:25:41, skipping insertion in model container [2018-12-03 04:25:41,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:41" (3/3) ... [2018-12-03 04:25:41,670 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-12-03 04:25:41,676 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:25:41,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:25:41,689 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:25:41,706 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 04:25:41,706 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:25:41,706 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:25:41,706 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:25:41,706 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:25:41,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:25:41,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:25:41,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:25:41,707 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:25:41,716 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-03 04:25:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 04:25:41,719 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:41,720 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:25:41,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:41,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:41,724 INFO L82 PathProgramCache]: Analyzing trace with hash 263185431, now seen corresponding path program 1 times [2018-12-03 04:25:41,726 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:41,727 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:41,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:41,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:41,790 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:41,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:41,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 04:25:41,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 04:25:41,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 04:25:41,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 04:25:41,809 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-03 04:25:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:41,822 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-12-03 04:25:41,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 04:25:41,823 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-03 04:25:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:41,828 INFO L225 Difference]: With dead ends: 78 [2018-12-03 04:25:41,828 INFO L226 Difference]: Without dead ends: 39 [2018-12-03 04:25:41,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 04:25:41,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-03 04:25:41,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-03 04:25:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 04:25:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-12-03 04:25:41,853 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-12-03 04:25:41,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:41,853 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-12-03 04:25:41,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 04:25:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-12-03 04:25:41,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 04:25:41,854 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:41,854 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:25:41,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:41,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:41,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1491196875, now seen corresponding path program 1 times [2018-12-03 04:25:41,854 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:41,854 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:41,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:41,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:41,978 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:41,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:41,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 04:25:41,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 04:25:41,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 04:25:41,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:25:41,991 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-12-03 04:25:42,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:42,920 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-12-03 04:25:42,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 04:25:42,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-03 04:25:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:42,922 INFO L225 Difference]: With dead ends: 60 [2018-12-03 04:25:42,922 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 04:25:42,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 04:25:42,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 04:25:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-12-03 04:25:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-03 04:25:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-12-03 04:25:42,926 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-12-03 04:25:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:42,927 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-12-03 04:25:42,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 04:25:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-12-03 04:25:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 04:25:42,927 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:42,927 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] [2018-12-03 04:25:42,927 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:42,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:42,928 INFO L82 PathProgramCache]: Analyzing trace with hash 664765980, now seen corresponding path program 1 times [2018-12-03 04:25:42,928 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:42,928 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:42,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:42,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:43,029 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:43,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:43,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 04:25:43,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 04:25:43,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 04:25:43,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:25:43,037 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-12-03 04:25:43,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:43,758 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-12-03 04:25:43,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 04:25:43,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-03 04:25:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:43,759 INFO L225 Difference]: With dead ends: 67 [2018-12-03 04:25:43,759 INFO L226 Difference]: Without dead ends: 39 [2018-12-03 04:25:43,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-12-03 04:25:43,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-03 04:25:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-03 04:25:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-03 04:25:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-03 04:25:43,763 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-12-03 04:25:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:43,763 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-03 04:25:43,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 04:25:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-03 04:25:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 04:25:43,763 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:43,764 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] [2018-12-03 04:25:43,764 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:43,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:43,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1845640621, now seen corresponding path program 1 times [2018-12-03 04:25:43,764 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:43,765 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:43,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:43,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:44,580 WARN L180 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-03 04:25:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:44,584 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:44,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:44,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 04:25:44,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:25:44,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:25:44,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 04:25:44,595 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-12-03 04:25:45,434 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-03 04:25:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:45,765 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-03 04:25:45,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 04:25:45,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-03 04:25:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:45,769 INFO L225 Difference]: With dead ends: 52 [2018-12-03 04:25:45,770 INFO L226 Difference]: Without dead ends: 34 [2018-12-03 04:25:45,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:25:45,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-03 04:25:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-03 04:25:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-03 04:25:45,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-12-03 04:25:45,773 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-12-03 04:25:45,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:45,773 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-12-03 04:25:45,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:25:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-03 04:25:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 04:25:45,774 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:45,774 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] [2018-12-03 04:25:45,774 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:45,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:45,774 INFO L82 PathProgramCache]: Analyzing trace with hash -530743544, now seen corresponding path program 1 times [2018-12-03 04:25:45,774 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:45,774 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/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 [2018-12-03 04:25:45,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:45,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:45,863 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:45,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:45,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 04:25:45,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 04:25:45,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 04:25:45,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 04:25:45,871 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-12-03 04:25:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:45,961 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-03 04:25:45,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 04:25:45,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-03 04:25:45,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:45,962 INFO L225 Difference]: With dead ends: 44 [2018-12-03 04:25:45,962 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 04:25:45,962 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 04:25:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 04:25:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 04:25:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 04:25:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-03 04:25:45,965 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-12-03 04:25:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:45,966 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-03 04:25:45,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 04:25:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-03 04:25:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 04:25:45,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:45,966 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] [2018-12-03 04:25:45,966 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:45,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash 943724535, now seen corresponding path program 1 times [2018-12-03 04:25:45,967 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:45,967 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-03 04:25:45,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:46,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:46,063 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:46,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:46,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 04:25:46,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:25:46,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:25:46,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 04:25:46,071 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-12-03 04:25:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:46,308 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-12-03 04:25:46,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 04:25:46,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-03 04:25:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:46,309 INFO L225 Difference]: With dead ends: 57 [2018-12-03 04:25:46,309 INFO L226 Difference]: Without dead ends: 33 [2018-12-03 04:25:46,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-03 04:25:46,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-03 04:25:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-03 04:25:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-03 04:25:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-12-03 04:25:46,312 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-12-03 04:25:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:46,312 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-12-03 04:25:46,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:25:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-12-03 04:25:46,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-03 04:25:46,313 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:25:46,313 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, 1, 1, 1, 1] [2018-12-03 04:25:46,313 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:25:46,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:25:46,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1511102072, now seen corresponding path program 1 times [2018-12-03 04:25:46,313 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 04:25:46,313 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-03 04:25:46,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:25:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:25:46,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:25:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:25:46,506 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 04:25:46,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:25:46,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-03 04:25:46,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 04:25:46,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 04:25:46,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-03 04:25:46,515 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-12-03 04:25:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:25:46,799 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-12-03 04:25:46,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 04:25:46,799 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-12-03 04:25:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:25:46,800 INFO L225 Difference]: With dead ends: 33 [2018-12-03 04:25:46,800 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 04:25:46,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-12-03 04:25:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 04:25:46,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 04:25:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 04:25:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 04:25:46,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-03 04:25:46,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:25:46,800 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 04:25:46,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 04:25:46,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 04:25:46,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 04:25:46,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 04:25:46,927 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 04:25:46,927 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 04:25:46,927 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:25:46,927 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:25:46,927 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-12-03 04:25:46,927 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 04:25:46,927 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L444 ceAbstractionStarter]: At program point L80-1(line 80) the Hoare annotation is: (or (and |main_#t~short8| (= main_~x~0 (fp.neg (_ +zero 8 24))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) main_~res~0)) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 8 24))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-12-03 04:25:46,928 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L451 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (or (= |ceil_float_#in~x| ceil_float_~x) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-03 04:25:46,929 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-03 04:25:46,930 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-12-03 04:25:46,930 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-12-03 04:25:46,930 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-12-03 04:25:46,930 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-12-03 04:25:46,930 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-12-03 04:25:46,930 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-12-03 04:25:46,930 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-12-03 04:25:46,934 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,935 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,937 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,937 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,938 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,938 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,938 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,938 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:25:46 BoogieIcfgContainer [2018-12-03 04:25:46,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:25:46,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:25:46,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:25:46,940 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:25:46,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:25:41" (3/4) ... [2018-12-03 04:25:46,942 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 04:25:46,946 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 04:25:46,946 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 04:25:46,947 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-12-03 04:25:46,947 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-03 04:25:46,949 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-03 04:25:46,949 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-03 04:25:46,950 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 04:25:46,965 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) [2018-12-03 04:25:46,966 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x [2018-12-03 04:25:46,978 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_40836871-5543-4c68-b6d5-07a6822cb6b3/bin-2019/utaipan/witness.graphml [2018-12-03 04:25:46,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:25:46,978 INFO L168 Benchmark]: Toolchain (without parser) took 5978.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 943.4 MB in the beginning and 836.6 MB in the end (delta: 106.8 MB). Peak memory consumption was 244.1 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,979 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. [2018-12-03 04:25:46,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.89 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.04 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,980 INFO L168 Benchmark]: Boogie Preprocessor took 56.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,980 INFO L168 Benchmark]: RCFGBuilder took 442.75 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,980 INFO L168 Benchmark]: TraceAbstraction took 5272.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.6 MB in the end (delta: 267.7 MB). Peak memory consumption was 267.7 MB. Max. memory is 11.5 GB. [2018-12-03 04:25:46,980 INFO L168 Benchmark]: Witness Printer took 38.14 ms. Allocated memory is still 1.2 GB. Free memory is still 836.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:25:46,981 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 149.89 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.04 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 442.75 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5272.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.6 MB in the end (delta: 267.7 MB). Peak memory consumption was 267.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.14 ms. Allocated memory is still 1.2 GB. Free memory is still 836.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,984 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,985 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 04:25:46,985 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 70 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 20017 SizeOfPredicates, 25 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...