./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_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_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ................................................................................................................................................................................................................................................................................................................ 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_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:17:37,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:17:37,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:17:37,022 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:17:37,022 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:17:37,022 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:17:37,023 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:17:37,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:17:37,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:17:37,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:17:37,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:17:37,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:17:37,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:17:37,027 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:17:37,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:17:37,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:17:37,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:17:37,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:17:37,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:17:37,031 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:17:37,031 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:17:37,032 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:17:37,033 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:17:37,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:17:37,033 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:17:37,034 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:17:37,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:17:37,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:17:37,035 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:17:37,036 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:17:37,036 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:17:37,036 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:17:37,036 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:17:37,036 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:17:37,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:17:37,037 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:17:37,037 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 11:17:37,045 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:17:37,045 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:17:37,045 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:17:37,046 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 11:17:37,046 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:17:37,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:17:37,047 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:17:37,048 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:17:37,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:17:37,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:17:37,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 11:17:37,049 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_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-12-09 11:17:37,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:17:37,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:17:37,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:17:37,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:17:37,080 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:17:37,080 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:37,121 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/c12d2cd5f/d8136251396c404b97d034ed5925f409/FLAGce789626e [2018-12-09 11:17:37,538 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:17:37,538 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:37,542 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/c12d2cd5f/d8136251396c404b97d034ed5925f409/FLAGce789626e [2018-12-09 11:17:37,549 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/c12d2cd5f/d8136251396c404b97d034ed5925f409 [2018-12-09 11:17:37,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:17:37,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:17:37,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:17:37,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:17:37,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:17:37,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643265e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37, skipping insertion in model container [2018-12-09 11:17:37,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:17:37,573 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:17:37,672 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:17:37,674 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:17:37,688 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:17:37,700 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:17:37,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37 WrapperNode [2018-12-09 11:17:37,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:17:37,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:17:37,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:17:37,701 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:17:37,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:17:37,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:17:37,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:17:37,716 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:17:37,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... [2018-12-09 11:17:37,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:17:37,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:17:37,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:17:37,769 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:17:37,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 11:17:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 11:17:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:17:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:17:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:17:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:17:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 11:17:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 11:17:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 11:17:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:17:37,961 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:17:37,961 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 11:17:37,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:37 BoogieIcfgContainer [2018-12-09 11:17:37,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:17:37,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:17:37,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:17:37,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:17:37,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:17:37" (1/3) ... [2018-12-09 11:17:37,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8573b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:17:37, skipping insertion in model container [2018-12-09 11:17:37,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:37" (2/3) ... [2018-12-09 11:17:37,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8573b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:17:37, skipping insertion in model container [2018-12-09 11:17:37,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:37" (3/3) ... [2018-12-09 11:17:37,969 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:37,977 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:17:37,983 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:17:37,996 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:17:38,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:17:38,015 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:17:38,015 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:17:38,015 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:17:38,015 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:17:38,015 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:17:38,015 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:17:38,015 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:17:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 11:17:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 11:17:38,028 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:38,028 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:17:38,030 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:38,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:38,033 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-12-09 11:17:38,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:17:38,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:17:38,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:38,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:17:38,069 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:17:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:38,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:38,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:17:38,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:17:38,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:17:38,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:17:38,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:17:38,132 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 11:17:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:38,145 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-12-09 11:17:38,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:17:38,146 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 11:17:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:38,153 INFO L225 Difference]: With dead ends: 68 [2018-12-09 11:17:38,153 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 11:17:38,156 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 [2018-12-09 11:17:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 11:17:38,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 11:17:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:17:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 11:17:38,178 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-12-09 11:17:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:38,178 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 11:17:38,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:17:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 11:17:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 11:17:38,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:38,179 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:17:38,179 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:38,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:38,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-12-09 11:17:38,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:17:38,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:17:38,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:38,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:17:38,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:17:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:17:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:17:38,234 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 11:17:38,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:17:38 BoogieIcfgContainer [2018-12-09 11:17:38,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:17:38,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:17:38,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:17:38,251 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:17:38,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:37" (3/4) ... [2018-12-09 11:17:38,254 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 11:17:38,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:17:38,254 INFO L168 Benchmark]: Toolchain (without parser) took 702.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 957.8 MB in the beginning and 1.0 GB in the end (delta: -87.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,255 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:38,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.90 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,256 INFO L168 Benchmark]: Boogie Preprocessor took 53.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,256 INFO L168 Benchmark]: RCFGBuilder took 192.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,257 INFO L168 Benchmark]: TraceAbstraction took 288.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:38,257 INFO L168 Benchmark]: Witness Printer took 2.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:38,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.90 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 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 14.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 192.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = 0.0f; VAL [x=0] [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=0] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=0] [L63] float res = trunc_float(x); [L66] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=6442450945, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L66] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L67] __VERIFIER_error() VAL [res=6442450945, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 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=38occurred 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 [2018-12-09 11:17:39,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:17:39,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:17:39,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:17:39,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:17:39,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:17:39,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:17:39,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:17:39,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:17:39,535 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:17:39,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:17:39,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:17:39,536 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:17:39,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:17:39,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:17:39,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:17:39,538 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:17:39,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:17:39,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:17:39,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:17:39,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:17:39,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:17:39,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:17:39,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:17:39,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:17:39,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:17:39,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:17:39,544 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:17:39,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:17:39,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:17:39,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:17:39,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:17:39,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:17:39,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:17:39,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:17:39,546 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:17:39,546 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 11:17:39,554 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:17:39,554 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:17:39,554 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:17:39,554 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:17:39,554 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:17:39,554 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:17:39,555 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:17:39,555 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:17:39,556 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:17:39,556 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:17:39,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 11:17:39,557 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 11:17:39,557 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_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-12-09 11:17:39,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:17:39,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:17:39,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:17:39,585 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:17:39,585 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:17:39,585 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:39,620 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/289c0efa1/2813baadcfef4faa884c4ccbd1f3684e/FLAGe79f80298 [2018-12-09 11:17:40,021 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:17:40,022 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:40,026 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/289c0efa1/2813baadcfef4faa884c4ccbd1f3684e/FLAGe79f80298 [2018-12-09 11:17:40,034 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/data/289c0efa1/2813baadcfef4faa884c4ccbd1f3684e [2018-12-09 11:17:40,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:17:40,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:17:40,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:17:40,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:17:40,039 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:17:40,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267733d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40, skipping insertion in model container [2018-12-09 11:17:40,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:17:40,056 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:17:40,148 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:17:40,151 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:17:40,167 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:17:40,181 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:17:40,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40 WrapperNode [2018-12-09 11:17:40,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:17:40,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:17:40,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:17:40,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:17:40,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:17:40,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:17:40,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:17:40,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:17:40,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... [2018-12-09 11:17:40,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:17:40,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:17:40,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:17:40,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:17:40,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:40,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:17:40,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:17:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:17:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:17:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 11:17:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 11:17:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 11:17:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 11:17:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 11:17:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 11:17:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:17:40,464 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:17:40,482 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:17:40,488 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:17:40,488 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 11:17:40,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:40 BoogieIcfgContainer [2018-12-09 11:17:40,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:17:40,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:17:40,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:17:40,491 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:17:40,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:17:40" (1/3) ... [2018-12-09 11:17:40,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ae11b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:17:40, skipping insertion in model container [2018-12-09 11:17:40,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:17:40" (2/3) ... [2018-12-09 11:17:40,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ae11b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:17:40, skipping insertion in model container [2018-12-09 11:17:40,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:40" (3/3) ... [2018-12-09 11:17:40,493 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-12-09 11:17:40,499 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:17:40,503 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:17:40,512 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:17:40,528 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 11:17:40,528 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:17:40,528 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:17:40,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:17:40,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:17:40,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:17:40,529 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:17:40,529 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:17:40,529 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:17:40,538 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 11:17:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 11:17:40,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:40,541 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:17:40,543 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:40,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-12-09 11:17:40,548 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:17:40,548 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:40,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:40,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:17:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:40,610 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:17:40,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:40,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:17:40,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:17:40,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:17:40,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:17:40,629 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 11:17:40,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:40,642 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-12-09 11:17:40,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:17:40,643 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 11:17:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:40,647 INFO L225 Difference]: With dead ends: 68 [2018-12-09 11:17:40,647 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 11:17:40,650 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 [2018-12-09 11:17:40,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 11:17:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 11:17:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:17:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 11:17:40,671 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-12-09 11:17:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:40,672 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 11:17:40,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:17:40,672 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 11:17:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 11:17:40,672 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:40,672 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:17:40,673 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:40,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:40,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-12-09 11:17:40,673 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:17:40,673 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:40,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:40,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:17:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:40,826 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:17:40,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:40,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:17:40,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:17:40,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:17:40,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:17:40,835 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-12-09 11:17:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:41,106 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-09 11:17:41,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 11:17:41,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 11:17:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:41,108 INFO L225 Difference]: With dead ends: 52 [2018-12-09 11:17:41,108 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 11:17:41,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 11:17:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 11:17:41,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-09 11:17:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 11:17:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-12-09 11:17:41,113 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-12-09 11:17:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:41,113 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-12-09 11:17:41,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:17:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-09 11:17:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 11:17:41,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:41,114 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] [2018-12-09 11:17:41,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:41,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:41,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2096519695, now seen corresponding path program 1 times [2018-12-09 11:17:41,115 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:17:41,115 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:41,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:41,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:17:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:41,224 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:17:41,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:41,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:17:41,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:17:41,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:17:41,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:17:41,236 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-12-09 11:17:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:41,490 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-12-09 11:17:41,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 11:17:41,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 11:17:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:41,491 INFO L225 Difference]: With dead ends: 49 [2018-12-09 11:17:41,491 INFO L226 Difference]: Without dead ends: 31 [2018-12-09 11:17:41,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-09 11:17:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-09 11:17:41,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-09 11:17:41,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-09 11:17:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-12-09 11:17:41,495 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-12-09 11:17:41,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:41,495 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-12-09 11:17:41,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:17:41,495 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-12-09 11:17:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 11:17:41,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:41,496 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] [2018-12-09 11:17:41,496 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:41,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1559687167, now seen corresponding path program 1 times [2018-12-09 11:17:41,497 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:17:41,497 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:41,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:41,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:17:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:41,581 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:17:41,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:41,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:17:41,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:17:41,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:17:41,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:17:41,588 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-12-09 11:17:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:41,663 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-09 11:17:41,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 11:17:41,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 11:17:41,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:41,664 INFO L225 Difference]: With dead ends: 34 [2018-12-09 11:17:41,664 INFO L226 Difference]: Without dead ends: 31 [2018-12-09 11:17:41,665 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 11:17:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-09 11:17:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-09 11:17:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-09 11:17:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-12-09 11:17:41,669 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2018-12-09 11:17:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:41,669 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-12-09 11:17:41,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:17:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-12-09 11:17:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 11:17:41,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:17:41,670 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] [2018-12-09 11:17:41,670 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:17:41,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:17:41,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1781626003, now seen corresponding path program 1 times [2018-12-09 11:17:41,670 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:17:41,671 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/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 [2018-12-09 11:17:41,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:17:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:17:41,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:17:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:17:42,018 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:17:42,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:17:42,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-09 11:17:42,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 11:17:42,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 11:17:42,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-09 11:17:42,026 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 15 states. [2018-12-09 11:17:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:42,709 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-12-09 11:17:42,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 11:17:42,710 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-12-09 11:17:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:42,711 INFO L225 Difference]: With dead ends: 31 [2018-12-09 11:17:42,711 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 11:17:42,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-12-09 11:17:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 11:17:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 11:17:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 11:17:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 11:17:42,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-12-09 11:17:42,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:42,713 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 11:17:42,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 11:17:42,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 11:17:42,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 11:17:42,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 11:17:42,857 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:17:42,857 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:17:42,857 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:17:42,857 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:17:42,857 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 11:17:42,857 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:17:42,857 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:17:42,858 INFO L444 ceAbstractionStarter]: At program point L66-1(line 66) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483648 32) trunc_float_~w~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= (_ +zero 8 24) main_~x~0) |main_#t~short10|) [2018-12-09 11:17:42,858 INFO L448 ceAbstractionStarter]: For program point L66-2(line 66) no Hoare annotation was computed. [2018-12-09 11:17:42,858 INFO L444 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-12-09 11:17:42,858 INFO L448 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-12-09 11:17:42,858 INFO L448 ceAbstractionStarter]: For program point L66-4(lines 66 69) no Hoare annotation was computed. [2018-12-09 11:17:42,858 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-12-09 11:17:42,858 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-12-09 11:17:42,859 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (not (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) trunc_float_~w~0) trunc_float_~signbit~0) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-12-09 11:17:42,860 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-09 11:17:42,861 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 43 53) no Hoare annotation was computed. [2018-12-09 11:17:42,861 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 43 53) the Hoare annotation is: true [2018-12-09 11:17:42,861 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-12-09 11:17:42,861 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-12-09 11:17:42,861 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 43 53) no Hoare annotation was computed. [2018-12-09 11:17:42,861 INFO L448 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-12-09 11:17:42,865 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,865 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,866 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,870 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,870 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,871 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,872 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,873 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,874 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,874 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,874 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,874 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,874 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,875 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,875 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,875 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:17:42 BoogieIcfgContainer [2018-12-09 11:17:42,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:17:42,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:17:42,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:17:42,877 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:17:42,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:17:40" (3/4) ... [2018-12-09 11:17:42,879 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 11:17:42,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 11:17:42,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 11:17:42,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-12-09 11:17:42,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-09 11:17:42,886 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 11:17:42,886 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 11:17:42,886 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 11:17:42,902 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 11:17:42,902 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 11:17:42,902 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 11:17:42,903 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 11:17:42,913 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e2a1979-fcc1-4b51-a759-5897e6e3cc0a/bin-2019/utaipan/witness.graphml [2018-12-09 11:17:42,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:17:42,914 INFO L168 Benchmark]: Toolchain (without parser) took 2878.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 856.1 MB in the end (delta: 88.6 MB). Peak memory consumption was 214.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:42,915 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. [2018-12-09 11:17:42,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.80 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:42,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.59 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:42,916 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:42,916 INFO L168 Benchmark]: RCFGBuilder took 269.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:42,916 INFO L168 Benchmark]: TraceAbstraction took 2387.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.1 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:42,917 INFO L168 Benchmark]: Witness Printer took 36.99 ms. Allocated memory is still 1.2 GB. Free memory is still 856.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:42,918 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 144.80 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 15.59 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 269.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2387.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.1 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.99 ms. Allocated memory is still 1.2 GB. Free memory is still 856.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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: 24]: Loop Invariant [2018-12-09 11:17:42,921 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,921 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,921 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,921 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,921 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,922 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,923 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,923 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,923 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,923 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,923 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,924 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,925 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,926 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 11:17:42,926 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 106 SDslu, 507 SDs, 0 SdLazy, 229 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 149 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 31 QuantifiedInterpolants, 19360 SizeOfPredicates, 21 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...