./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 ................................................................................................................................................................................................................................................................................................................................................................................. 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_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:22:52,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:22:52,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:22:52,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:22:52,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:22:52,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:22:52,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:22:52,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:22:52,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:22:52,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:22:52,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:22:52,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:22:52,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:22:52,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:22:52,832 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:22:52,832 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:22:52,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:22:52,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:22:52,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:22:52,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:22:52,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:22:52,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:22:52,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:22:52,839 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:22:52,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:22:52,840 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:22:52,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:22:52,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:22:52,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:22:52,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:22:52,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:22:52,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:22:52,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:22:52,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:22:52,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:22:52,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:22:52,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 03:22:52,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:22:52,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:22:52,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:22:52,854 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:22:52,854 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:22:52,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:22:52,854 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 03:22:52,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:22:52,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 03:22:52,855 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 03:22:52,855 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:22:52,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:22:52,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:22:52,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:22:52,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:22:52,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:22:52,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:22:52,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:22:52,857 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:22:52,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:22:52,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:22:52,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 03:22:52,858 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-11-10 03:22:52,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:22:52,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:22:52,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:22:52,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:22:52,895 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:22:52,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-10 03:22:52,942 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/20e90fc69/103f31bb0dc34c4bb70cfebfe7e1c363/FLAG4f76afea0 [2018-11-10 03:22:53,294 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:22:53,295 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-10 03:22:53,301 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/20e90fc69/103f31bb0dc34c4bb70cfebfe7e1c363/FLAG4f76afea0 [2018-11-10 03:22:53,309 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/20e90fc69/103f31bb0dc34c4bb70cfebfe7e1c363 [2018-11-10 03:22:53,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:22:53,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:22:53,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:22:53,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:22:53,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:22:53,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2756c1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53, skipping insertion in model container [2018-11-10 03:22:53,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:22:53,342 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:22:53,460 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:22:53,463 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:22:53,494 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:22:53,508 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:22:53,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53 WrapperNode [2018-11-10 03:22:53,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:22:53,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:22:53,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:22:53,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:22:53,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:22:53,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:22:53,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:22:53,549 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:22:53,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... [2018-11-10 03:22:53,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:22:53,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:22:53,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:22:53,620 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:22:53,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:22:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:22:53,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:22:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:22:53,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:22:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-10 03:22:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-10 03:22:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:22:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:22:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 03:22:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 03:22:53,957 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:22:53,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:22:53 BoogieIcfgContainer [2018-11-10 03:22:53,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:22:53,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:22:53,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:22:53,960 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:22:53,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:22:53" (1/3) ... [2018-11-10 03:22:53,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eeb5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:22:53, skipping insertion in model container [2018-11-10 03:22:53,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:53" (2/3) ... [2018-11-10 03:22:53,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eeb5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:22:53, skipping insertion in model container [2018-11-10 03:22:53,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:22:53" (3/3) ... [2018-11-10 03:22:53,962 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-11-10 03:22:53,967 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:22:53,972 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:22:53,981 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:22:54,000 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:22:54,000 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:22:54,000 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:22:54,000 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:22:54,000 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:22:54,000 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:22:54,000 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:22:54,000 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:22:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 03:22:54,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 03:22:54,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:22:54,015 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:22:54,016 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:22:54,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:22:54,020 INFO L82 PathProgramCache]: Analyzing trace with hash -876527574, now seen corresponding path program 1 times [2018-11-10 03:22:54,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:22:54,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:22:54,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:22:54,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:22:54,055 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:22:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:22:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:22:54,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:22:54,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 03:22:54,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 03:22:54,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 03:22:54,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 03:22:54,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:22:54,137 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-10 03:22:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:22:54,151 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-11-10 03:22:54,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 03:22:54,152 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 03:22:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:22:54,158 INFO L225 Difference]: With dead ends: 86 [2018-11-10 03:22:54,158 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 03:22:54,160 INFO L605 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 [2018-11-10 03:22:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 03:22:54,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 03:22:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 03:22:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-10 03:22:54,183 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-11-10 03:22:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:22:54,183 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-10 03:22:54,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 03:22:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-10 03:22:54,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 03:22:54,184 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:22:54,184 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:22:54,184 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:22:54,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:22:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash 818034388, now seen corresponding path program 1 times [2018-11-10 03:22:54,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:22:54,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:22:54,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:22:54,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:22:54,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:22:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:22:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:22:54,252 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 03:22:54,264 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,265 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,265 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,265 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,265 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,266 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,266 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,266 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,266 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,267 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,267 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,267 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,267 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,268 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,268 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,268 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,268 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,269 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,269 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:22:54,269 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:22:54,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:22:54 BoogieIcfgContainer [2018-11-10 03:22:54,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:22:54,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:22:54,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:22:54,287 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:22:54,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:22:53" (3/4) ... [2018-11-10 03:22:54,289 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:22:54,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:22:54,290 INFO L168 Benchmark]: Toolchain (without parser) took 978.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -103.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,291 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:22:54,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 1.0 GB. Free memory was 940.3 MB in the beginning and 937.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,292 INFO L168 Benchmark]: Boogie Preprocessor took 71.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,292 INFO L168 Benchmark]: RCFGBuilder took 337.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,293 INFO L168 Benchmark]: TraceAbstraction took 328.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:22:54,293 INFO L168 Benchmark]: Witness Printer took 3.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:22:54,296 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 1.0 GB. Free memory was 940.3 MB in the beginning and 937.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 337.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 120, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 31. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450958, \old(Lg2_log)=6442450959, \old(Lg3_log)=6442450946, \old(Lg4_log)=6442450949, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450957, \old(Lg7_log)=6442450956, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450952, \old(two25_log)=6442450955, \old(zero_log)=6442450954, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L25] CALL ieee_float_shape_type gf_u; [L25] RET ieee_float_shape_type gf_u; [L26] CALL gf_u.value = (x) [L26] RET gf_u.value = (x) [L27] CALL, EXPR gf_u.word [L27] RET, EXPR gf_u.word [L27] (ix) = gf_u.word [L27] RET (ix) = gf_u.word [L28] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L30] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] RET return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, res == 0.0f && __signbit_float(res) == 0=0, two25_log=33554432, x=1, zero_log=0] [L120] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=1, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 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=47occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 0.1.23-1dbac8b [2018-11-10 03:22:55,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:22:55,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:22:55,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:22:55,769 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:22:55,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:22:55,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:22:55,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:22:55,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:22:55,773 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:22:55,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:22:55,774 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:22:55,775 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:22:55,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:22:55,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:22:55,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:22:55,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:22:55,778 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:22:55,780 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:22:55,781 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:22:55,782 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:22:55,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:22:55,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:22:55,784 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:22:55,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:22:55,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:22:55,786 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:22:55,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:22:55,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:22:55,788 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:22:55,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:22:55,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:22:55,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:22:55,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:22:55,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:22:55,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:22:55,790 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 03:22:55,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:22:55,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:22:55,802 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:22:55,802 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:22:55,802 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:22:55,802 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:22:55,802 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:22:55,802 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:22:55,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:22:55,803 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:22:55,803 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:22:55,803 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:22:55,803 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:22:55,803 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:22:55,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:22:55,804 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:22:55,805 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:22:55,805 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 03:22:55,806 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:22:55,806 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 03:22:55,806 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 03:22:55,806 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_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-11-10 03:22:55,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:22:55,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:22:55,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:22:55,851 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:22:55,851 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:22:55,852 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-10 03:22:55,897 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/60b15eb90/6d947fc2b81748129b87f3995c2ae3ac/FLAG45f2b760c [2018-11-10 03:22:56,227 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:22:56,227 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-10 03:22:56,232 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/60b15eb90/6d947fc2b81748129b87f3995c2ae3ac/FLAG45f2b760c [2018-11-10 03:22:56,240 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/data/60b15eb90/6d947fc2b81748129b87f3995c2ae3ac [2018-11-10 03:22:56,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:22:56,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:22:56,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:22:56,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:22:56,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:22:56,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56, skipping insertion in model container [2018-11-10 03:22:56,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:22:56,272 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:22:56,405 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:22:56,410 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:22:56,443 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:22:56,461 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:22:56,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56 WrapperNode [2018-11-10 03:22:56,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:22:56,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:22:56,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:22:56,463 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:22:56,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:22:56,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:22:56,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:22:56,500 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:22:56,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... [2018-11-10 03:22:56,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:22:56,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:22:56,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:22:56,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:22:56,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:22:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:22:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:22:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:22:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:22:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-10 03:22:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-10 03:22:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:22:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:22:56,610 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 03:22:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 03:22:56,751 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 03:23:07,434 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 03:23:07,575 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 03:23:07,582 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:23:07,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:23:07 BoogieIcfgContainer [2018-11-10 03:23:07,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:23:07,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:23:07,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:23:07,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:23:07,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:22:56" (1/3) ... [2018-11-10 03:23:07,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b9357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:23:07, skipping insertion in model container [2018-11-10 03:23:07,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:56" (2/3) ... [2018-11-10 03:23:07,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b9357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:23:07, skipping insertion in model container [2018-11-10 03:23:07,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:23:07" (3/3) ... [2018-11-10 03:23:07,587 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-11-10 03:23:07,592 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:23:07,597 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:23:07,608 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:23:07,626 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:23:07,626 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:23:07,626 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:23:07,626 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:23:07,627 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:23:07,627 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:23:07,627 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:23:07,627 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:23:07,627 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:23:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 03:23:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 03:23:07,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:07,643 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:07,645 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:07,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:07,648 INFO L82 PathProgramCache]: Analyzing trace with hash -876527574, now seen corresponding path program 1 times [2018-11-10 03:23:07,651 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:07,651 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:23:07,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:07,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:07,879 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:07,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:07,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 03:23:07,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 03:23:07,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 03:23:07,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:23:07,907 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-10 03:23:07,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:23:07,923 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-11-10 03:23:07,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 03:23:07,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 03:23:07,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:23:07,930 INFO L225 Difference]: With dead ends: 86 [2018-11-10 03:23:07,930 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 03:23:07,933 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:23:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 03:23:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 03:23:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 03:23:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-10 03:23:07,959 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-11-10 03:23:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:23:07,959 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-10 03:23:07,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 03:23:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-10 03:23:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 03:23:07,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:07,960 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:07,960 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:07,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:07,961 INFO L82 PathProgramCache]: Analyzing trace with hash 818034388, now seen corresponding path program 1 times [2018-11-10 03:23:07,961 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:07,961 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:23:07,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:08,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:08,239 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:08,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:08,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:23:08,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:23:08,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:23:08,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:23:08,250 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 6 states. [2018-11-10 03:23:11,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:23:11,667 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-11-10 03:23:11,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 03:23:11,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-10 03:23:11,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:23:11,781 INFO L225 Difference]: With dead ends: 62 [2018-11-10 03:23:11,781 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 03:23:11,782 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:23:11,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 03:23:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-10 03:23:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 03:23:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-11-10 03:23:11,788 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 18 [2018-11-10 03:23:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:23:11,789 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-10 03:23:11,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:23:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-11-10 03:23:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 03:23:11,790 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:11,790 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:11,790 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:11,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:11,791 INFO L82 PathProgramCache]: Analyzing trace with hash -85731096, now seen corresponding path program 1 times [2018-11-10 03:23:11,791 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:11,791 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:23:11,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:12,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:12,048 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:12,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:12,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:23:12,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:23:12,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:23:12,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:23:12,064 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 6 states. [2018-11-10 03:23:14,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:23:14,955 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-11-10 03:23:15,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 03:23:15,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-10 03:23:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:23:15,073 INFO L225 Difference]: With dead ends: 62 [2018-11-10 03:23:15,073 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 03:23:15,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:23:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 03:23:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-10 03:23:15,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 03:23:15,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-11-10 03:23:15,080 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 19 [2018-11-10 03:23:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:23:15,080 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-11-10 03:23:15,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:23:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-11-10 03:23:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 03:23:15,081 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:15,081 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:15,081 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:15,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:15,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1217357400, now seen corresponding path program 1 times [2018-11-10 03:23:15,082 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:15,082 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:23:15,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:15,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:15,191 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:15,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:15,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:23:15,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:23:15,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:23:15,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:23:15,200 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 6 states. [2018-11-10 03:23:15,427 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-10 03:23:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:23:17,822 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-10 03:23:17,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 03:23:17,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-10 03:23:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:23:17,938 INFO L225 Difference]: With dead ends: 60 [2018-11-10 03:23:17,938 INFO L226 Difference]: Without dead ends: 45 [2018-11-10 03:23:17,938 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:23:17,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-10 03:23:17,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-10 03:23:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 03:23:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-10 03:23:17,942 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 20 [2018-11-10 03:23:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:23:17,942 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-10 03:23:17,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:23:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-10 03:23:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 03:23:17,943 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:17,943 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:17,943 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:17,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:17,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1268428517, now seen corresponding path program 1 times [2018-11-10 03:23:17,944 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:17,944 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/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 [2018-11-10 03:23:17,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:18,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:18,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:18,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:18,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:23:18,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:23:18,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:23:18,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:23:18,093 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 6 states. [2018-11-10 03:23:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:23:29,915 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-10 03:23:29,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 03:23:29,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-11-10 03:23:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:23:29,916 INFO L225 Difference]: With dead ends: 52 [2018-11-10 03:23:29,917 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 03:23:29,917 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:23:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 03:23:29,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-10 03:23:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 03:23:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2018-11-10 03:23:29,921 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 28 [2018-11-10 03:23:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:23:29,921 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2018-11-10 03:23:29,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:23:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-11-10 03:23:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 03:23:29,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:23:29,923 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:23:29,923 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:23:29,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:23:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash -2139035098, now seen corresponding path program 1 times [2018-11-10 03:23:29,924 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:23:29,924 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 03:23:29,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:23:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:23:30,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:23:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:23:30,305 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:23:30,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:23:30,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 03:23:30,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 03:23:30,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 03:23:30,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-10 03:23:30,315 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 9 states. [2018-11-10 03:24:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:24:07,346 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-10 03:24:07,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 03:24:07,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-10 03:24:07,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:24:07,390 INFO L225 Difference]: With dead ends: 79 [2018-11-10 03:24:07,390 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 03:24:07,391 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-10 03:24:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 03:24:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-11-10 03:24:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 03:24:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2018-11-10 03:24:07,396 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 28 [2018-11-10 03:24:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:24:07,396 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2018-11-10 03:24:07,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 03:24:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-10 03:24:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 03:24:07,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:24:07,397 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:24:07,397 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:24:07,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:24:07,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1535096709, now seen corresponding path program 1 times [2018-11-10 03:24:07,398 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:24:07,398 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 03:24:07,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:24:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:24:07,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:24:14,076 WARN L179 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 34 [2018-11-10 03:24:27,152 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-10 03:24:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:24:27,174 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:24:27,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:24:27,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 03:24:27,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 03:24:27,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 03:24:27,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=61, Unknown=5, NotChecked=0, Total=90 [2018-11-10 03:24:27,184 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 10 states. [2018-11-10 03:25:31,038 WARN L179 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 46 [2018-11-10 03:26:14,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:26:14,457 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-11-10 03:26:14,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 03:26:14,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-11-10 03:26:14,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:26:14,460 INFO L225 Difference]: With dead ends: 60 [2018-11-10 03:26:14,460 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 03:26:14,461 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 35.5s TimeCoverageRelationStatistics Valid=46, Invalid=126, Unknown=10, NotChecked=0, Total=182 [2018-11-10 03:26:14,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 03:26:14,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 03:26:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 03:26:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-11-10 03:26:14,466 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 28 [2018-11-10 03:26:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:26:14,466 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-11-10 03:26:14,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 03:26:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-10 03:26:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 03:26:14,467 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:26:14,467 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:26:14,468 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:26:14,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash -919299182, now seen corresponding path program 1 times [2018-11-10 03:26:14,468 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:26:14,468 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-10 03:26:14,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:26:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:15,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:26:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:15,502 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:26:15,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:26:15,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 03:26:15,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 03:26:15,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 03:26:15,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 03:26:15,520 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 7 states. [2018-11-10 03:26:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:26:18,271 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-11-10 03:26:18,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 03:26:18,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-10 03:26:18,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:26:18,273 INFO L225 Difference]: With dead ends: 55 [2018-11-10 03:26:18,273 INFO L226 Difference]: Without dead ends: 37 [2018-11-10 03:26:18,273 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-10 03:26:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-10 03:26:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-10 03:26:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 03:26:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-11-10 03:26:18,276 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 28 [2018-11-10 03:26:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:26:18,277 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-11-10 03:26:18,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 03:26:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-11-10 03:26:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 03:26:18,277 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:26:18,277 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:26:18,278 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:26:18,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:18,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1379922702, now seen corresponding path program 1 times [2018-11-10 03:26:18,278 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:26:18,278 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_077f980b-ff77-4cdf-99d1-2d5df1296dcb/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-10 03:26:18,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:26:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:18,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:26:18,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:18,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:26:18,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:26:18,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 03:26:18,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 03:26:18,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 03:26:18,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-10 03:26:18,526 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 11 states. [2018-11-10 03:26:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:26:18,927 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-11-10 03:26:18,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 03:26:18,928 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-11-10 03:26:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:26:18,928 INFO L225 Difference]: With dead ends: 37 [2018-11-10 03:26:18,928 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 03:26:18,928 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-11-10 03:26:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 03:26:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 03:26:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 03:26:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 03:26:18,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-10 03:26:18,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:26:18,929 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:26:18,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 03:26:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:26:18,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:26:18,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 03:26:19,193 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:26:19,296 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-10 03:26:19,296 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (or (and (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (not (= (_ bv127 32) (bvadd (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32)) (bvneg (bvneg (bvashr (bvand (bvadd (bvand v___ieee754_logf_~ix~0_17 (_ bv8388607 32)) (_ bv4913952 32)) (_ bv8388608 32)) (_ bv23 32))))))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0)))) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-11-10 03:26:19,297 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L421 ceAbstractionStarter]: At program point L49-3(lines 49 53) the Hoare annotation is: (or (and (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (= (bvand (bvadd (bvand v___ieee754_logf_~ix~0_17 (_ bv8388607 32)) (_ bv4913952 32)) (_ bv8388608 32)) __ieee754_logf_~i~0) (= (bvadd __ieee754_logf_~k~0 (_ bv127 32)) (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32))))) (exists ((v___ieee754_logf_~ix~0_18 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_18) ((_ extract 30 23) v___ieee754_logf_~ix~0_18) ((_ extract 22 0) v___ieee754_logf_~ix~0_18)) |__ieee754_logf_#in~x|) (= __ieee754_logf_~ix~0 (bvand v___ieee754_logf_~ix~0_18 (_ bv8388607 32)))))) (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (not (= (_ bv127 32) (bvadd (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32)) (bvneg (bvneg (bvashr (bvand (bvadd (bvand v___ieee754_logf_~ix~0_17 (_ bv8388607 32)) (_ bv4913952 32)) (_ bv8388608 32)) (_ bv23 32))))))))) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 53) no Hoare annotation was computed. [2018-11-10 03:26:19,297 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-11-10 03:26:19,298 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:26:19,298 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:26:19,298 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 110 126) the Hoare annotation is: true [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 110 126) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L421 ceAbstractionStarter]: At program point L120-1(line 120) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) RNE (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (and (= main_~x~0 ((_ to_fp 8 24) RNE 1.0)) (= .cse0 main_~res~0) |main_#t~short10|))) [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L120-2(line 120) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L421 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 ((_ to_fp 8 24) RNE 1.0))) [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L120-4(lines 120 123) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 110 126) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point L101-4(lines 101 105) no Hoare annotation was computed. [2018-11-10 03:26:19,299 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 98 108) no Hoare annotation was computed. [2018-11-10 03:26:19,300 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 98 108) the Hoare annotation is: true [2018-11-10 03:26:19,300 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 98 108) no Hoare annotation was computed. [2018-11-10 03:26:19,300 INFO L425 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-11-10 03:26:19,300 INFO L421 ceAbstractionStarter]: At program point L101-3(lines 101 105) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-11-10 03:26:19,304 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 03:26:19,306 INFO L168 Benchmark]: Toolchain (without parser) took 203063.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:19,306 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. [2018-11-10 03:26:19,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:19,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.09 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:19,307 INFO L168 Benchmark]: Boogie Preprocessor took 32.47 ms. Allocated memory is still 1.0 GB. Free memory is still 927.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:26:19,308 INFO L168 Benchmark]: RCFGBuilder took 11050.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:19,308 INFO L168 Benchmark]: TraceAbstraction took 191721.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.6 MB). Peak memory consumption was 63.0 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:19,311 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 218.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.09 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.47 ms. Allocated memory is still 1.0 GB. Free memory is still 927.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 11050.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 191721.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.6 MB). Peak memory consumption was 63.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...