./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/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 3077c551d2b458403e0209f5991b4e91a7b5094b ....................................................................................................................................................................................................................................................................................................................................................................... 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_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/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 3077c551d2b458403e0209f5991b4e91a7b5094b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:39:22,177 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:39:22,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:39:22,185 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:39:22,185 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:39:22,186 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:39:22,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:39:22,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:39:22,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:39:22,189 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:39:22,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:39:22,190 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:39:22,191 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:39:22,192 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:39:22,192 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:39:22,193 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:39:22,194 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:39:22,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:39:22,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:39:22,197 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:39:22,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:39:22,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:39:22,200 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:39:22,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:39:22,201 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:39:22,201 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:39:22,202 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:39:22,203 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:39:22,203 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:39:22,204 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:39:22,204 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:39:22,205 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:39:22,205 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:39:22,205 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:39:22,206 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:39:22,206 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:39:22,206 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:39:22,216 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:39:22,217 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:39:22,217 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:39:22,217 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:39:22,218 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:39:22,218 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:39:22,218 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:39:22,218 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:39:22,218 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:39:22,218 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:39:22,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:39:22,219 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:39:22,219 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:39:22,219 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:39:22,220 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:39:22,221 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:39:22,221 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:39:22,222 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:39:22,222 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:39:22,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:39:22,223 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:39:22,223 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_39a60c27-a944-477e-8549-3d2895e60894/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 -> 3077c551d2b458403e0209f5991b4e91a7b5094b [2018-12-09 19:39:22,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:39:22,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:39:22,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:39:22,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:39:22,256 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:39:22,256 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:22,291 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/2e7890b1a/c542bef51b0b4384a5bfd607e0cf6516/FLAG860a8a7e6 [2018-12-09 19:39:22,722 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:39:22,722 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:22,727 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/2e7890b1a/c542bef51b0b4384a5bfd607e0cf6516/FLAG860a8a7e6 [2018-12-09 19:39:22,736 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/2e7890b1a/c542bef51b0b4384a5bfd607e0cf6516 [2018-12-09 19:39:22,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:39:22,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:39:22,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:39:22,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:39:22,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:39:22,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15319f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22, skipping insertion in model container [2018-12-09 19:39:22,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:39:22,763 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:39:22,879 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:39:22,883 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:39:22,941 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:39:22,955 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:39:22,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22 WrapperNode [2018-12-09 19:39:22,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:39:22,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:39:22,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:39:22,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:39:22,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:39:22,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:39:22,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:39:22,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:39:22,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:22,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:23,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... [2018-12-09 19:39:23,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:39:23,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:39:23,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:39:23,002 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:39:23,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:39:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:39:23,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-09 19:39:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-09 19:39:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:39:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-09 19:39:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:39:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:39:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:39:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 19:39:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:39:23,305 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:39:23,305 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 19:39:23,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:39:23 BoogieIcfgContainer [2018-12-09 19:39:23,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:39:23,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:39:23,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:39:23,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:39:23,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:39:22" (1/3) ... [2018-12-09 19:39:23,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69088d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:39:23, skipping insertion in model container [2018-12-09 19:39:23,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:22" (2/3) ... [2018-12-09 19:39:23,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69088d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:39:23, skipping insertion in model container [2018-12-09 19:39:23,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:39:23" (3/3) ... [2018-12-09 19:39:23,310 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:23,315 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:39:23,320 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:39:23,329 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:39:23,347 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:39:23,347 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:39:23,347 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:39:23,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:39:23,348 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:39:23,348 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:39:23,348 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:39:23,348 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:39:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-12-09 19:39:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:39:23,361 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:23,362 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:23,363 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:23,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:23,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-12-09 19:39:23,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:39:23,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:39:23,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:23,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:39:23,395 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:39:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:39:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:39:23,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:39:23,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:39:23,469 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:39:23,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:39:23,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:39:23,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:39:23,480 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-12-09 19:39:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:39:23,499 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-12-09 19:39:23,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:39:23,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 19:39:23,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:39:23,506 INFO L225 Difference]: With dead ends: 197 [2018-12-09 19:39:23,506 INFO L226 Difference]: Without dead ends: 98 [2018-12-09 19:39:23,508 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:39:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-09 19:39:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-12-09 19:39:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-09 19:39:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-12-09 19:39:23,539 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-12-09 19:39:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:39:23,539 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-12-09 19:39:23,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:39:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-12-09 19:39:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:39:23,540 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:23,540 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:23,540 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:23,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:23,540 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-12-09 19:39:23,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:39:23,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:39:23,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:23,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:39:23,541 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:39:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:39:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:39:23,616 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:39:23,633 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 19:39:23,633 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-09 19:39:23,633 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 19:39:23,634 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 19:39:23,634 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-12-09 19:39:23,634 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-12-09 19:39:23,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:39:23 BoogieIcfgContainer [2018-12-09 19:39:23,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:39:23,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:39:23,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:39:23,643 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:39:23,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:39:23" (3/4) ... [2018-12-09 19:39:23,645 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:39:23,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:39:23,646 INFO L168 Benchmark]: Toolchain (without parser) took 907.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 958.8 MB in the beginning and 1.0 GB in the end (delta: -50.2 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:39:23,647 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:39:23,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:39:23,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:39:23,648 INFO L168 Benchmark]: Boogie Preprocessor took 29.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:39:23,648 INFO L168 Benchmark]: RCFGBuilder took 303.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:39:23,649 INFO L168 Benchmark]: TraceAbstraction took 336.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:39:23,649 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:39:23,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 216.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 303.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450976 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_11_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 259]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 251, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450974, \old(one_atan)=6442450961, \old(pi)=6442450969, \old(pi_lo_atan2)=6442450959, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450963, \old(tiny_atan2)=6442450975, \old(zero_atan2)=6442450952, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] double x = __VERIFIER_nondet_double(); [L251] double y = -0.0; VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, zero_atan2=0] [L253] COND TRUE x < 0.0 VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, zero_atan2=0] [L255] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=6442450970, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, hy=3, lx=6442450970, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=6442450964, \old(y)=6442450965, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, hy=3, lx=6442450970, ly=6442450949, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L255] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=6442450968, aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450968, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] [L259] __VERIFIER_error() VAL [aT_atan={6442450955:0}, atanhi_atan={6442450957:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=6442450968, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450964, y=6442450965, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 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=103occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:39:24,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:39:24,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:39:24,916 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:39:24,916 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:39:24,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:39:24,917 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:39:24,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:39:24,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:39:24,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:39:24,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:39:24,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:39:24,920 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:39:24,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:39:24,921 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:39:24,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:39:24,922 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:39:24,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:39:24,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:39:24,924 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:39:24,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:39:24,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:39:24,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:39:24,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:39:24,927 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:39:24,927 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:39:24,928 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:39:24,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:39:24,929 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:39:24,929 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:39:24,929 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:39:24,930 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:39:24,930 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:39:24,930 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:39:24,931 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:39:24,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:39:24,931 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:39:24,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:39:24,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:39:24,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:39:24,939 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:39:24,939 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:39:24,939 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:39:24,939 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:39:24,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:39:24,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:39:24,940 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:39:24,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:39:24,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:39:24,942 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:39:24,942 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:39:24,943 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:39:24,943 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:39:24,943 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:39:24,943 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_39a60c27-a944-477e-8549-3d2895e60894/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 -> 3077c551d2b458403e0209f5991b4e91a7b5094b [2018-12-09 19:39:24,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:39:24,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:39:24,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:39:24,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:39:24,971 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:39:24,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:25,007 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/01f13f6f9/275e173851444603ada7fc9d2554ba88/FLAG8112e52fb [2018-12-09 19:39:25,409 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:39:25,410 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/sv-benchmarks/c/float-newlib/double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:25,414 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/01f13f6f9/275e173851444603ada7fc9d2554ba88/FLAG8112e52fb [2018-12-09 19:39:25,422 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/data/01f13f6f9/275e173851444603ada7fc9d2554ba88 [2018-12-09 19:39:25,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:39:25,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:39:25,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:39:25,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:39:25,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:39:25,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499c3c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25, skipping insertion in model container [2018-12-09 19:39:25,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:39:25,448 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:39:25,570 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:39:25,575 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:39:25,611 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:39:25,630 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:39:25,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25 WrapperNode [2018-12-09 19:39:25,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:39:25,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:39:25,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:39:25,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:39:25,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:39:25,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:39:25,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:39:25,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:39:25,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... [2018-12-09 19:39:25,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:39:25,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:39:25,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:39:25,722 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:39:25,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:39:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:39:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-12-09 19:39:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-09 19:39:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:39:25,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:39:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-12-09 19:39:25,753 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:39:25,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:39:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:39:26,190 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:26,399 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:26,475 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:26,504 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:27,560 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:27,576 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:27,614 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:27,638 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:32,825 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:39:43,388 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:39:43,388 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 19:39:43,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:39:43 BoogieIcfgContainer [2018-12-09 19:39:43,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:39:43,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:39:43,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:39:43,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:39:43,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:39:25" (1/3) ... [2018-12-09 19:39:43,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cbc779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:39:43, skipping insertion in model container [2018-12-09 19:39:43,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:39:25" (2/3) ... [2018-12-09 19:39:43,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cbc779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:39:43, skipping insertion in model container [2018-12-09 19:39:43,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:39:43" (3/3) ... [2018-12-09 19:39:43,396 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660a_true-unreach-call.c [2018-12-09 19:39:43,405 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:39:43,411 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:39:43,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:39:43,443 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:39:43,444 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:39:43,444 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:39:43,444 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:39:43,444 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:39:43,444 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:39:43,444 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:39:43,444 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:39:43,444 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:39:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-12-09 19:39:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:39:43,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:43,459 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:43,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:43,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-12-09 19:39:43,467 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:39:43,467 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 19:39:43,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:39:43,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:39:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:39:43,716 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:39:43,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:39:43,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:39:43,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:39:43,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:39:43,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:39:43,741 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-12-09 19:39:43,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:39:43,760 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-12-09 19:39:43,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:39:43,761 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 19:39:43,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:39:43,767 INFO L225 Difference]: With dead ends: 197 [2018-12-09 19:39:43,767 INFO L226 Difference]: Without dead ends: 98 [2018-12-09 19:39:43,769 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:39:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-09 19:39:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-12-09 19:39:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-09 19:39:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-12-09 19:39:43,803 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-12-09 19:39:43,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:39:43,803 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-12-09 19:39:43,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:39:43,804 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-12-09 19:39:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:39:43,804 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:43,804 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:43,805 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:43,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:43,805 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-12-09 19:39:43,805 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:39:43,805 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 19:39:43,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:39:44,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:39:44,221 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:39:44,222 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:39:44,225 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-12-09 19:39:44,304 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:39:44,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-12-09 19:39:44,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 19:39:44,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-12-09 19:39:44,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-12-09 19:39:44,447 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 19:39:44,515 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:39:44,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:39:44,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 19:39:44,600 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:21 [2018-12-09 19:39:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:39:44,988 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:39:44,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:39:44,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:39:45,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:39:45,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:39:45,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:39:45,001 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand 10 states. [2018-12-09 19:39:46,707 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-12-09 19:39:47,099 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-12-09 19:39:47,808 WARN L180 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-12-09 19:39:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:39:54,418 INFO L93 Difference]: Finished difference Result 121 states and 168 transitions. [2018-12-09 19:39:54,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:39:54,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-12-09 19:39:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:39:54,421 INFO L225 Difference]: With dead ends: 121 [2018-12-09 19:39:54,421 INFO L226 Difference]: Without dead ends: 91 [2018-12-09 19:39:54,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:39:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-09 19:39:54,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-09 19:39:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-09 19:39:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2018-12-09 19:39:54,433 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 21 [2018-12-09 19:39:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:39:54,433 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2018-12-09 19:39:54,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:39:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2018-12-09 19:39:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:39:54,434 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:54,434 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:54,435 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:54,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:54,435 INFO L82 PathProgramCache]: Analyzing trace with hash -322982793, now seen corresponding path program 1 times [2018-12-09 19:39:54,435 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:39:54,436 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 19:39:54,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:39:54,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:39:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:39:54,815 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:39:54,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:39:54,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:39:54,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:39:54,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:39:54,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:39:54,827 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand 8 states. [2018-12-09 19:39:59,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:39:59,468 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2018-12-09 19:39:59,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:39:59,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-12-09 19:39:59,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:39:59,471 INFO L225 Difference]: With dead ends: 131 [2018-12-09 19:39:59,471 INFO L226 Difference]: Without dead ends: 93 [2018-12-09 19:39:59,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:39:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-12-09 19:39:59,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2018-12-09 19:39:59,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-09 19:39:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2018-12-09 19:39:59,479 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 26 [2018-12-09 19:39:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:39:59,479 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2018-12-09 19:39:59,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:39:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2018-12-09 19:39:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:39:59,479 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:39:59,480 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:39:59,480 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:39:59,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:39:59,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1132329419, now seen corresponding path program 1 times [2018-12-09 19:39:59,480 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:39:59,480 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 19:39:59,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:39:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:39:59,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:40:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:40:00,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:40:00,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:40:00,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:40:00,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:40:00,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:40:00,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:40:00,038 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand 9 states. [2018-12-09 19:40:00,872 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-12-09 19:40:01,132 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-12-09 19:40:03,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:40:03,677 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2018-12-09 19:40:03,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:40:03,678 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-12-09 19:40:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:40:03,679 INFO L225 Difference]: With dead ends: 99 [2018-12-09 19:40:03,679 INFO L226 Difference]: Without dead ends: 89 [2018-12-09 19:40:03,679 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:40:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-09 19:40:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-09 19:40:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-09 19:40:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2018-12-09 19:40:03,685 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 26 [2018-12-09 19:40:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:40:03,686 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2018-12-09 19:40:03,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:40:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2018-12-09 19:40:03,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:40:03,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:40:03,686 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:40:03,686 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:40:03,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:40:03,686 INFO L82 PathProgramCache]: Analyzing trace with hash -442139595, now seen corresponding path program 1 times [2018-12-09 19:40:03,687 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:40:03,687 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 19:40:03,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:40:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:40:03,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:40:03,992 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:40:03,993 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:40:03,994 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:40:03,995 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:40:03,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-09 19:40:04,084 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-12-09 19:40:04,085 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2018-12-09 19:40:04,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-12-09 19:40:04,112 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,115 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-12-09 19:40:04,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-09 19:40:04,142 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,151 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,158 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:40:04,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 19:40:04,172 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-09 19:40:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:40:04,285 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:40:04,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:40:04,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:40:04,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:40:04,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:40:04,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:40:04,297 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand 7 states. [2018-12-09 19:40:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:40:07,531 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2018-12-09 19:40:07,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:40:07,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 19:40:07,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:40:07,534 INFO L225 Difference]: With dead ends: 122 [2018-12-09 19:40:07,534 INFO L226 Difference]: Without dead ends: 89 [2018-12-09 19:40:07,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:40:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-09 19:40:07,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-09 19:40:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-09 19:40:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2018-12-09 19:40:07,541 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 26 [2018-12-09 19:40:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:40:07,541 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2018-12-09 19:40:07,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:40:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2018-12-09 19:40:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 19:40:07,542 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:40:07,542 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:40:07,542 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:40:07,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:40:07,543 INFO L82 PathProgramCache]: Analyzing trace with hash 415778449, now seen corresponding path program 1 times [2018-12-09 19:40:07,543 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:40:07,543 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 19:40:07,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:40:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:40:07,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:40:08,026 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 19:40:08,189 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:40:08,406 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:40:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:40:08,410 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:40:08,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:40:08,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:40:08,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:40:08,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:40:08,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:40:08,422 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand 6 states. [2018-12-09 19:40:09,940 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 19:40:14,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:40:14,455 INFO L93 Difference]: Finished difference Result 95 states and 118 transitions. [2018-12-09 19:40:14,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:40:14,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-12-09 19:40:14,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:40:14,456 INFO L225 Difference]: With dead ends: 95 [2018-12-09 19:40:14,456 INFO L226 Difference]: Without dead ends: 89 [2018-12-09 19:40:14,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:40:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-09 19:40:14,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-12-09 19:40:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-09 19:40:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 111 transitions. [2018-12-09 19:40:14,463 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 111 transitions. Word has length 28 [2018-12-09 19:40:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:40:14,463 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 111 transitions. [2018-12-09 19:40:14,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:40:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 111 transitions. [2018-12-09 19:40:14,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 19:40:14,464 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:40:14,464 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:40:14,464 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:40:14,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:40:14,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1104833018, now seen corresponding path program 1 times [2018-12-09 19:40:14,464 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:40:14,465 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39a60c27-a944-477e-8549-3d2895e60894/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-09 19:40:14,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:40:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:40:14,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:40:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:40:15,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:40:15,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:40:15,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:40:15,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:40:15,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:40:15,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:40:15,098 INFO L87 Difference]: Start difference. First operand 89 states and 111 transitions. Second operand 10 states. [2018-12-09 19:40:17,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:40:17,354 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2018-12-09 19:40:17,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:40:17,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-12-09 19:40:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:40:17,356 INFO L225 Difference]: With dead ends: 89 [2018-12-09 19:40:17,356 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:40:17,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2018-12-09 19:40:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:40:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:40:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:40:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:40:17,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-09 19:40:17,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:40:17,357 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:40:17,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:40:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:40:17,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:40:17,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:40:40,465 WARN L180 SmtUtils]: Spent 23.02 s on a formula simplification. DAG size of input: 195 DAG size of output: 144 [2018-12-09 19:40:46,725 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-09 19:40:46,726 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1009) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:346) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-12-09 19:40:46,728 INFO L168 Benchmark]: Toolchain (without parser) took 81304.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 944.7 MB in the beginning and 870.3 MB in the end (delta: 74.4 MB). Peak memory consumption was 276.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,729 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.98 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,730 INFO L168 Benchmark]: Boogie Preprocessor took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:40:46,731 INFO L168 Benchmark]: RCFGBuilder took 17667.23 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,731 INFO L168 Benchmark]: TraceAbstraction took 63338.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 870.3 MB in the end (delta: 193.4 MB). Peak memory consumption was 259.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:40:46,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.98 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 17667.23 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 63338.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 870.3 MB in the end (delta: 193.4 MB). Peak memory consumption was 259.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 259]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...