./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_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_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ...................................................................................................................................................................................................................................................................................................................... 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_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 22:09:02,771 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:09:02,772 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:09:02,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:09:02,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:09:02,778 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:09:02,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:09:02,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:09:02,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:09:02,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:09:02,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:09:02,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:09:02,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:09:02,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:09:02,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:09:02,783 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:09:02,784 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:09:02,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:09:02,786 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:09:02,786 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:09:02,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:09:02,787 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:09:02,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:09:02,789 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:09:02,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:09:02,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:09:02,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:09:02,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:09:02,790 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:09:02,791 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:09:02,791 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:09:02,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:09:02,792 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:09:02,792 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:09:02,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:09:02,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:09:02,793 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 22:09:02,800 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:09:02,800 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:09:02,800 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:09:02,800 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:09:02,801 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:09:02,801 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:09:02,801 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 22:09:02,801 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:09:02,801 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:09:02,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:09:02,802 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:09:02,803 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:09:02,803 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:09:02,803 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:09:02,804 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:09:02,804 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 22:09:02,804 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:09:02,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:09:02,804 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_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer 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 -> Automizer 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-02 22:09:02,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:09:02,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:09:02,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:09:02,835 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:09:02,835 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:09:02,836 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:02,873 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/0a5d2c7d5/e1be4271216e4eee8c3c7459a1076fa1/FLAG08a1ee679 [2018-12-02 22:09:03,265 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:09:03,265 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:03,269 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/0a5d2c7d5/e1be4271216e4eee8c3c7459a1076fa1/FLAG08a1ee679 [2018-12-02 22:09:03,277 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/0a5d2c7d5/e1be4271216e4eee8c3c7459a1076fa1 [2018-12-02 22:09:03,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:09:03,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:09:03,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:09:03,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:09:03,282 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:09:03,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03, skipping insertion in model container [2018-12-02 22:09:03,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:09:03,299 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:09:03,392 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:09:03,395 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:09:03,413 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:09:03,454 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:09:03,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03 WrapperNode [2018-12-02 22:09:03,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:09:03,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:09:03,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:09:03,455 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:09:03,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:09:03,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:09:03,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:09:03,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:09:03,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... [2018-12-02 22:09:03,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:09:03,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:09:03,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:09:03,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:09:03,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 22:09:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-02 22:09:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:09:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-02 22:09:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-02 22:09:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:09:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:09:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 22:09:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:09:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:09:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 22:09:03,674 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:09:03,674 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 22:09:03,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:03 BoogieIcfgContainer [2018-12-02 22:09:03,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:09:03,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:09:03,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:09:03,677 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:09:03,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:03" (1/3) ... [2018-12-02 22:09:03,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f2881a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:03, skipping insertion in model container [2018-12-02 22:09:03,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:03" (2/3) ... [2018-12-02 22:09:03,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f2881a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:03, skipping insertion in model container [2018-12-02 22:09:03,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:03" (3/3) ... [2018-12-02 22:09:03,679 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:03,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:09:03,689 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:09:03,698 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:09:03,716 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 22:09:03,716 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:09:03,716 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:09:03,716 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:09:03,717 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:09:03,717 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:09:03,717 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:09:03,717 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:09:03,717 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:09:03,727 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-02 22:09:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 22:09:03,731 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:03,731 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:03,732 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:03,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-02 22:09:03,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:09:03,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:09:03,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:09:03,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:03,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:09:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:03,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:03,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:09:03,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:09:03,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:09:03,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:09:03,821 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-02 22:09:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:03,835 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-02 22:09:03,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:09:03,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-02 22:09:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:03,841 INFO L225 Difference]: With dead ends: 94 [2018-12-02 22:09:03,841 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 22:09:03,843 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 [2018-12-02 22:09:03,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 22:09:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-02 22:09:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-02 22:09:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-02 22:09:03,865 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-02 22:09:03,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:03,866 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-02 22:09:03,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:09:03,866 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-02 22:09:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 22:09:03,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:03,867 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:03,867 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:03,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:03,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-02 22:09:03,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:09:03,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:09:03,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:09:03,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:03,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:09:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:09:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:09:03,916 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:09:03,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:09:03 BoogieIcfgContainer [2018-12-02 22:09:03,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:09:03,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:09:03,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:09:03,934 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:09:03,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:03" (3/4) ... [2018-12-02 22:09:03,937 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 22:09:03,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:09:03,937 INFO L168 Benchmark]: Toolchain (without parser) took 657.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:03,938 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:09:03,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:03,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.61 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. [2018-12-02 22:09:03,939 INFO L168 Benchmark]: Boogie Preprocessor took 19.78 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:03,940 INFO L168 Benchmark]: RCFGBuilder took 184.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:03,940 INFO L168 Benchmark]: TraceAbstraction took 258.45 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:03,940 INFO L168 Benchmark]: Witness Printer took 2.84 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. [2018-12-02 22:09:03,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.61 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 19.78 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 258.45 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418244, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418248] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=10737418248, \result=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L99] RET, EXPR floor_double(x) VAL [floor_double(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418248, res == -0.0 && __signbit_double(res) == 1=0, x=10737418248] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418248, x=10737418248] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 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=51occurred 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, 39 NumberOfCodeBlocks, 39 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 [2018-12-02 22:09:05,171 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:09:05,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:09:05,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:09:05,180 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:09:05,181 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:09:05,182 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:09:05,183 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:09:05,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:09:05,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:09:05,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:09:05,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:09:05,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:09:05,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:09:05,187 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:09:05,188 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:09:05,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:09:05,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:09:05,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:09:05,192 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:09:05,193 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:09:05,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:09:05,195 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:09:05,196 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:09:05,196 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:09:05,196 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:09:05,197 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:09:05,198 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:09:05,198 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:09:05,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:09:05,199 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:09:05,200 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:09:05,200 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:09:05,200 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:09:05,200 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:09:05,201 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:09:05,201 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 22:09:05,212 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:09:05,212 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:09:05,212 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:09:05,212 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:09:05,213 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:09:05,213 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:09:05,213 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 22:09:05,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:09:05,213 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:09:05,214 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:09:05,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:09:05,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:09:05,215 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 22:09:05,216 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:09:05,216 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 22:09:05,216 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 22:09:05,216 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_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer 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 -> Automizer 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-02 22:09:05,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:09:05,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:09:05,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:09:05,252 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:09:05,253 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:09:05,253 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:05,293 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/f39fbec65/5398c4251fb6403bafae2523718144de/FLAGb6a6efc40 [2018-12-02 22:09:05,685 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:09:05,686 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:05,690 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/f39fbec65/5398c4251fb6403bafae2523718144de/FLAGb6a6efc40 [2018-12-02 22:09:05,698 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/data/f39fbec65/5398c4251fb6403bafae2523718144de [2018-12-02 22:09:05,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:09:05,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:09:05,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:09:05,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:09:05,705 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:09:05,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05, skipping insertion in model container [2018-12-02 22:09:05,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:09:05,723 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:09:05,818 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:09:05,821 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:09:05,841 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:09:05,857 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:09:05,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05 WrapperNode [2018-12-02 22:09:05,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:09:05,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:09:05,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:09:05,859 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:09:05,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:09:05,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:09:05,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:09:05,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:09:05,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... [2018-12-02 22:09:05,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:09:05,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:09:05,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:09:05,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:09:05,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:05,956 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-02 22:09:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:09:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-02 22:09:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:09:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:09:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 22:09:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 22:09:06,074 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 22:09:06,927 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 22:09:06,945 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:09:06,946 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 22:09:06,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06 BoogieIcfgContainer [2018-12-02 22:09:06,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:09:06,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:09:06,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:09:06,949 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:09:06,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:05" (1/3) ... [2018-12-02 22:09:06,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f06e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:06, skipping insertion in model container [2018-12-02 22:09:06,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:05" (2/3) ... [2018-12-02 22:09:06,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f06e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:06, skipping insertion in model container [2018-12-02 22:09:06,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06" (3/3) ... [2018-12-02 22:09:06,951 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-02 22:09:06,956 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:09:06,960 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:09:06,969 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:09:06,986 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 22:09:06,986 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:09:06,986 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:09:06,986 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:09:06,986 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:09:06,987 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:09:06,987 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:09:06,987 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:09:06,987 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:09:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-02 22:09:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 22:09:06,999 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:07,000 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:07,001 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:07,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:07,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-02 22:09:07,007 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:07,007 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:07,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:07,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:07,058 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:07,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:07,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:09:07,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:09:07,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:09:07,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:09:07,077 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-02 22:09:07,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:07,091 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-02 22:09:07,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:09:07,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-02 22:09:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:07,097 INFO L225 Difference]: With dead ends: 94 [2018-12-02 22:09:07,097 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 22:09:07,099 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 [2018-12-02 22:09:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 22:09:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-02 22:09:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-02 22:09:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-02 22:09:07,121 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-02 22:09:07,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:07,122 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-02 22:09:07,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:09:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-02 22:09:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 22:09:07,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:07,122 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:07,122 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:07,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:07,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-02 22:09:07,123 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:07,123 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:07,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:07,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:07,294 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:07,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:07,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 22:09:07,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 22:09:07,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 22:09:07,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:09:07,303 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 7 states. [2018-12-02 22:09:09,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:09,502 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2018-12-02 22:09:09,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 22:09:09,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-02 22:09:09,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:09,505 INFO L225 Difference]: With dead ends: 80 [2018-12-02 22:09:09,505 INFO L226 Difference]: Without dead ends: 39 [2018-12-02 22:09:09,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-02 22:09:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-02 22:09:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-02 22:09:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 22:09:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-02 22:09:09,509 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-12-02 22:09:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:09,510 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-02 22:09:09,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 22:09:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-02 22:09:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 22:09:09,510 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:09,510 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:09,511 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:09,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:09,511 INFO L82 PathProgramCache]: Analyzing trace with hash 180598350, now seen corresponding path program 1 times [2018-12-02 22:09:09,511 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:09,511 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:09,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:09,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:11,326 WARN L180 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 22:09:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:11,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:11,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:11,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:09:11,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:09:11,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:09:11,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:09:11,343 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-12-02 22:09:13,495 WARN L180 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 22:09:14,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:14,240 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-02 22:09:14,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:09:14,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-02 22:09:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:14,248 INFO L225 Difference]: With dead ends: 52 [2018-12-02 22:09:14,248 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 22:09:14,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:09:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 22:09:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-02 22:09:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 22:09:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-12-02 22:09:14,252 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-12-02 22:09:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:14,252 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-12-02 22:09:14,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:09:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-02 22:09:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 22:09:14,253 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:14,253 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:14,253 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:14,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:14,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1037458242, now seen corresponding path program 1 times [2018-12-02 22:09:14,254 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:14,254 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:14,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:14,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:14,407 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:14,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:14,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:09:14,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:09:14,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:09:14,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:09:14,416 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-12-02 22:09:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:14,829 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-12-02 22:09:14,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 22:09:14,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-02 22:09:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:14,830 INFO L225 Difference]: With dead ends: 57 [2018-12-02 22:09:14,830 INFO L226 Difference]: Without dead ends: 39 [2018-12-02 22:09:14,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:09:14,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-02 22:09:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-02 22:09:14,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 22:09:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-12-02 22:09:14,834 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-12-02 22:09:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:14,834 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-12-02 22:09:14,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:09:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-12-02 22:09:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 22:09:14,834 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:14,835 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:14,835 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:14,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash -729750026, now seen corresponding path program 1 times [2018-12-02 22:09:14,835 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:14,835 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:14,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:14,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:14,997 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-12-02 22:09:15,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 42 treesize of output 37 [2018-12-02 22:09:15,013 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 28 treesize of output 18 [2018-12-02 22:09:15,013 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 22:09:15,017 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:15,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:15,035 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. [2018-12-02 22:09:15,035 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:66, output treesize:36 [2018-12-02 22:09:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:15,195 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:15,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:15,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 22:09:15,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 22:09:15,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 22:09:15,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:09:15,204 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2018-12-02 22:09:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:16,111 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-12-02 22:09:16,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 22:09:16,111 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-12-02 22:09:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:16,112 INFO L225 Difference]: With dead ends: 44 [2018-12-02 22:09:16,112 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 22:09:16,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-12-02 22:09:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 22:09:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 22:09:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 22:09:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-02 22:09:16,115 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 25 [2018-12-02 22:09:16,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:16,116 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-02 22:09:16,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 22:09:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-02 22:09:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 22:09:16,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:16,116 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:09:16,116 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:16,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:16,117 INFO L82 PathProgramCache]: Analyzing trace with hash -336723016, now seen corresponding path program 1 times [2018-12-02 22:09:16,117 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:16,117 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:16,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:16,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:16,240 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 22:09:16,241 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 22:09:16,241 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 22:09:16,242 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 22:09:16,243 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 [2018-12-02 22:09:16,348 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 22:09:16,358 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 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 50 treesize of output 56 [2018-12-02 22:09:16,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,381 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 25 treesize of output 19 [2018-12-02 22:09:16,389 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 19 treesize of output 5 [2018-12-02 22:09:16,389 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,392 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,409 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 [2018-12-02 22:09:16,413 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 [2018-12-02 22:09:16,413 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,419 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:16,443 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. [2018-12-02 22:09:16,443 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-02 22:09:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:16,509 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:16,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:16,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:09:16,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:09:16,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:09:16,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:09:16,518 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 6 states. [2018-12-02 22:09:17,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:17,077 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-12-02 22:09:17,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:09:17,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-02 22:09:17,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:17,080 INFO L225 Difference]: With dead ends: 52 [2018-12-02 22:09:17,080 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 22:09:17,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:09:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 22:09:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-02 22:09:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 22:09:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-12-02 22:09:17,083 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-12-02 22:09:17,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:17,083 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-12-02 22:09:17,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:09:17,083 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-12-02 22:09:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-02 22:09:17,084 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:09:17,084 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, 1] [2018-12-02 22:09:17,084 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:09:17,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:09:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash -997921541, now seen corresponding path program 1 times [2018-12-02 22:09:17,084 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 22:09:17,084 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/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 [2018-12-02 22:09:17,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:09:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:09:17,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:09:17,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-12-02 22:09:17,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 42 treesize of output 37 [2018-12-02 22:09:17,245 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 28 treesize of output 18 [2018-12-02 22:09:17,245 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 22:09:17,249 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:17,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 22:09:17,263 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. [2018-12-02 22:09:17,263 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:28 [2018-12-02 22:09:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:09:19,659 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 22:09:19,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:09:19,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-02 22:09:19,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 22:09:19,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 22:09:19,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=156, Unknown=1, NotChecked=0, Total=182 [2018-12-02 22:09:19,670 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 14 states. [2018-12-02 22:09:24,119 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 24 [2018-12-02 22:09:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:09:25,521 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-02 22:09:25,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 22:09:25,522 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-12-02 22:09:25,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:09:25,522 INFO L225 Difference]: With dead ends: 34 [2018-12-02 22:09:25,523 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 22:09:25,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=73, Invalid=432, Unknown=1, NotChecked=0, Total=506 [2018-12-02 22:09:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 22:09:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 22:09:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 22:09:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 22:09:25,524 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-02 22:09:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:09:25,524 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 22:09:25,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 22:09:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 22:09:25,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 22:09:25,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-02 22:09:25,717 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-12-02 22:09:25,718 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 86) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= |__signbit_double_#in~x| __signbit_double_~x)) [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 86) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-12-02 22:09:25,719 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L444 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and |main_#t~short10| (= main_~x~0 (fp.neg (_ +zero 11 53))) (exists ((|v_q#valueAsBitvector_7| (_ BitVec 64)) (floor_double_~i1~0 (_ BitVec 32))) (and (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_7|) ((_ extract 62 52) |v_q#valueAsBitvector_7|) ((_ extract 51 0) |v_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= (let ((.cse0 (concat ((_ extract 63 32) |v_q#valueAsBitvector_7|) floor_double_~i1~0))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0)))) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-02 22:09:25,719 INFO L448 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-12-02 22:09:25,719 INFO L444 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 11 53))) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-02 22:09:25,720 INFO L448 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-12-02 22:09:25,720 INFO L448 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-12-02 22:09:25,724 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,726 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,727 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,727 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:09:25 BoogieIcfgContainer [2018-12-02 22:09:25,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:09:25,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:09:25,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:09:25,729 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:09:25,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:06" (3/4) ... [2018-12-02 22:09:25,731 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 22:09:25,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-02 22:09:25,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 22:09:25,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-12-02 22:09:25,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 22:09:25,738 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-12-02 22:09:25,738 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-02 22:09:25,739 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 22:09:25,754 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) [2018-12-02 22:09:25,754 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x [2018-12-02 22:09:25,767 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_efb85976-1a7f-4808-a10c-e5f78f51d3a7/bin-2019/uautomizer/witness.graphml [2018-12-02 22:09:25,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:09:25,768 INFO L168 Benchmark]: Toolchain (without parser) took 20067.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:25,768 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-02 22:09:25,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:25,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.16 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:09:25,769 INFO L168 Benchmark]: Boogie Preprocessor took 51.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:25,769 INFO L168 Benchmark]: RCFGBuilder took 1019.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:25,769 INFO L168 Benchmark]: TraceAbstraction took 18781.74 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.5 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:09:25,770 INFO L168 Benchmark]: Witness Printer took 39.09 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. [2018-12-02 22:09:25,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 156.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.16 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1019.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18781.74 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.5 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * Witness Printer took 39.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant [2018-12-02 22:09:25,773 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,773 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x - InvariantResult [Line: 19]: Loop Invariant [2018-12-02 22:09:25,773 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 22:09:25,773 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. SAFE Result, 18.7s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 12.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 233 SDtfs, 261 SDslu, 686 SDs, 0 SdLazy, 438 SolverSat, 41 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 84 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 162 ConstructedInterpolants, 62 QuantifiedInterpolants, 42913 SizeOfPredicates, 26 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...