./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_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:17:10,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:17:10,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:17:10,265 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:17:10,266 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:17:10,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:17:10,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:17:10,268 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:17:10,269 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:17:10,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:17:10,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:17:10,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:17:10,271 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:17:10,271 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:17:10,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:17:10,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:17:10,273 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:17:10,274 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:17:10,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:17:10,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:17:10,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:17:10,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:17:10,279 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:17:10,279 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:17:10,279 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:17:10,280 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:17:10,281 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:17:10,281 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:17:10,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:17:10,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:17:10,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:17:10,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:17:10,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:17:10,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:17:10,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:17:10,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:17:10,284 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:17:10,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:17:10,292 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:17:10,292 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:17:10,293 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:17:10,293 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:17:10,294 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:17:10,294 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:17:10,294 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:17:10,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:17:10,294 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:17:10,295 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:17:10,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:17:10,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:17:10,296 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:17:10,297 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-09 19:17:10,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:17:10,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:17:10,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:17:10,329 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:17:10,329 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:17:10,330 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:10,366 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/3d78bb51f/a90f3300872f462dacb423877e235abd/FLAGf272451bc [2018-12-09 19:17:10,791 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:17:10,792 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:10,795 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/3d78bb51f/a90f3300872f462dacb423877e235abd/FLAGf272451bc [2018-12-09 19:17:10,803 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/3d78bb51f/a90f3300872f462dacb423877e235abd [2018-12-09 19:17:10,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:17:10,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:17:10,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:17:10,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:17:10,808 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:17:10,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:10,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651df91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10, skipping insertion in model container [2018-12-09 19:17:10,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:10,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:17:10,824 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:17:10,917 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:17:10,919 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:17:10,937 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:17:10,948 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:17:10,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10 WrapperNode [2018-12-09 19:17:10,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:17:10,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:17:10,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:17:10,949 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:17:10,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:10,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:10,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:17:10,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:17:10,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:17:10,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:17:10,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:10,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... [2018-12-09 19:17:11,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:17:11,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:17:11,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:17:11,020 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:17:11,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 19:17:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:17:11,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:17:11,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:17:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 19:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 19:17:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:17:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:17:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:17:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:17:11,230 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:17:11,230 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:17:11,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:11 BoogieIcfgContainer [2018-12-09 19:17:11,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:17:11,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:17:11,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:17:11,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:17:11,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:17:10" (1/3) ... [2018-12-09 19:17:11,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10754362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:17:11, skipping insertion in model container [2018-12-09 19:17:11,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:10" (2/3) ... [2018-12-09 19:17:11,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10754362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:17:11, skipping insertion in model container [2018-12-09 19:17:11,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:11" (3/3) ... [2018-12-09 19:17:11,235 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:11,241 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:17:11,245 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:17:11,257 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:17:11,276 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:17:11,276 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:17:11,276 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:17:11,276 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:17:11,276 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:17:11,276 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:17:11,276 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:17:11,276 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:17:11,287 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-09 19:17:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:17:11,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:11,291 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:17:11,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:11,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:11,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-09 19:17:11,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:17:11,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:17:11,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:11,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:17:11,326 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:17:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:11,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:11,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:17:11,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:17:11,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:17:11,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:17:11,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:17:11,385 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-09 19:17:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:11,399 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-09 19:17:11,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:17:11,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 19:17:11,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:11,406 INFO L225 Difference]: With dead ends: 94 [2018-12-09 19:17:11,406 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 19:17:11,408 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:17:11,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 19:17:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-09 19:17:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 19:17:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-09 19:17:11,430 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-09 19:17:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:11,430 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-09 19:17:11,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:17:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-09 19:17:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 19:17:11,431 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:11,431 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] [2018-12-09 19:17:11,431 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:11,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-09 19:17:11,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:17:11,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:17:11,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:11,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:17:11,432 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:17:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:17:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:17:11,479 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:17:11,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:17:11 BoogieIcfgContainer [2018-12-09 19:17:11,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:17:11,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:17:11,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:17:11,496 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:17:11,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:11" (3/4) ... [2018-12-09 19:17:11,499 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:17:11,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:17:11,499 INFO L168 Benchmark]: Toolchain (without parser) took 694.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -102.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,500 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:17:11,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.96 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 945.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,501 INFO L168 Benchmark]: Boogie Preprocessor took 26.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,501 INFO L168 Benchmark]: RCFGBuilder took 210.88 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,502 INFO L168 Benchmark]: TraceAbstraction took 264.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:11,502 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:17:11,504 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.96 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 945.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 210.88 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 [2018-12-09 19:17:12,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:17:12,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:17:12,823 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:17:12,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:17:12,824 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:17:12,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:17:12,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:17:12,827 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:17:12,827 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:17:12,828 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:17:12,828 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:17:12,829 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:17:12,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:17:12,830 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:17:12,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:17:12,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:17:12,833 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:17:12,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:17:12,835 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:17:12,836 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:17:12,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:17:12,838 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:17:12,839 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:17:12,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:17:12,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:17:12,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:17:12,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:17:12,841 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:17:12,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:17:12,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:17:12,843 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:17:12,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:17:12,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:17:12,844 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:17:12,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:17:12,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:17:12,854 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:17:12,855 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:17:12,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:17:12,855 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:17:12,856 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:17:12,856 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:17:12,856 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:17:12,856 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:17:12,856 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:17:12,856 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:17:12,857 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:17:12,857 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:17:12,857 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:17:12,857 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:17:12,858 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:17:12,859 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:17:12,859 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:17:12,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:17:12,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:17:12,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:17:12,859 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:17:12,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:17:12,860 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:17:12,861 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:17:12,861 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_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-09 19:17:12,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:17:12,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:17:12,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:17:12,895 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:17:12,895 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:17:12,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:12,928 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/e19233b72/39c45a13a5ee4814a6a49526372b2285/FLAGefe99bae1 [2018-12-09 19:17:13,336 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:17:13,337 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:13,340 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/e19233b72/39c45a13a5ee4814a6a49526372b2285/FLAGefe99bae1 [2018-12-09 19:17:13,348 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/data/e19233b72/39c45a13a5ee4814a6a49526372b2285 [2018-12-09 19:17:13,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:17:13,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:17:13,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:17:13,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:17:13,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:17:13,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,356 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 09.12 07:17:13, skipping insertion in model container [2018-12-09 19:17:13,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:17:13,371 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:17:13,468 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:17:13,471 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:17:13,491 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:17:13,508 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:17:13,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13 WrapperNode [2018-12-09 19:17:13,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:17:13,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:17:13,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:17:13,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:17:13,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:17:13,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:17:13,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:17:13,525 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:17:13,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... [2018-12-09 19:17:13,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:17:13,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:17:13,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:17:13,576 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:17:13,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:17:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 19:17:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 19:17:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 19:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:17:13,717 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:17:14,584 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:17:14,606 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:17:14,606 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:17:14,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:14 BoogieIcfgContainer [2018-12-09 19:17:14,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:17:14,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:17:14,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:17:14,609 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:17:14,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:17:13" (1/3) ... [2018-12-09 19:17:14,609 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 09.12 07:17:14, skipping insertion in model container [2018-12-09 19:17:14,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:13" (2/3) ... [2018-12-09 19:17:14,609 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 09.12 07:17:14, skipping insertion in model container [2018-12-09 19:17:14,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:14" (3/3) ... [2018-12-09 19:17:14,610 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-09 19:17:14,616 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:17:14,620 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:17:14,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:17:14,645 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:17:14,645 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:17:14,646 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:17:14,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:17:14,646 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:17:14,646 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:17:14,646 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:17:14,646 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:17:14,646 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:17:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-09 19:17:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:17:14,658 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:14,659 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:17:14,660 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:14,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:14,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-09 19:17:14,665 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:14,666 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:14,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:14,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:14,723 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:14,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:14,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:17:14,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:17:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:17:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:17:14,741 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-09 19:17:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:14,757 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-09 19:17:14,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:17:14,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 19:17:14,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:14,764 INFO L225 Difference]: With dead ends: 94 [2018-12-09 19:17:14,764 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 19:17:14,767 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:17:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 19:17:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-09 19:17:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 19:17:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-09 19:17:14,791 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-09 19:17:14,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:14,792 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-09 19:17:14,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:17:14,792 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-09 19:17:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 19:17:14,793 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:14,793 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] [2018-12-09 19:17:14,793 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:14,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-09 19:17:14,794 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:14,794 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:14,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:14,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:14,967 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:14,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:14,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:17:14,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:17:14,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:17:14,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:17:14,979 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 7 states. [2018-12-09 19:17:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:17,183 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2018-12-09 19:17:17,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 19:17:17,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-09 19:17:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:17,186 INFO L225 Difference]: With dead ends: 80 [2018-12-09 19:17:17,186 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 19:17:17,187 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 [2018-12-09 19:17:17,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 19:17:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-09 19:17:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 19:17:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 19:17:17,190 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-12-09 19:17:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:17,191 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 19:17:17,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:17:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 19:17:17,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 19:17:17,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:17,191 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] [2018-12-09 19:17:17,192 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:17,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash 180598350, now seen corresponding path program 1 times [2018-12-09 19:17:17,192 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:17,192 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:17,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:17,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:19,013 WARN L180 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 19:17:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:19,018 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:19,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:19,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:17:19,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:17:19,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:17:19,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:17:19,032 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-12-09 19:17:21,157 WARN L180 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 19:17:21,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:21,917 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-09 19:17:21,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:17:21,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-09 19:17:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:21,925 INFO L225 Difference]: With dead ends: 52 [2018-12-09 19:17:21,926 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 19:17:21,926 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 [2018-12-09 19:17:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 19:17:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 19:17:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 19:17:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-12-09 19:17:21,929 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-12-09 19:17:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:21,929 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-12-09 19:17:21,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:17:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-09 19:17:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 19:17:21,930 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:21,930 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] [2018-12-09 19:17:21,930 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:21,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:21,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1037458242, now seen corresponding path program 1 times [2018-12-09 19:17:21,931 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:21,931 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:21,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:22,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:22,086 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:22,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:22,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:17:22,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:17:22,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:17:22,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:17:22,095 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-12-09 19:17:22,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:22,506 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-12-09 19:17:22,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:17:22,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 19:17:22,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:22,508 INFO L225 Difference]: With dead ends: 57 [2018-12-09 19:17:22,508 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 19:17:22,508 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 [2018-12-09 19:17:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 19:17:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-09 19:17:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 19:17:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-12-09 19:17:22,513 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-12-09 19:17:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:22,513 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-12-09 19:17:22,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:17:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-12-09 19:17:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 19:17:22,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:22,514 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] [2018-12-09 19:17:22,514 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:22,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:22,514 INFO L82 PathProgramCache]: Analyzing trace with hash -729750026, now seen corresponding path program 1 times [2018-12-09 19:17:22,515 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:22,515 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:22,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:22,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:22,673 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 [2018-12-09 19:17:22,678 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 [2018-12-09 19:17:22,689 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 [2018-12-09 19:17:22,690 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 19:17:22,694 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:22,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:22,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 19:17:22,710 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:66, output treesize:36 [2018-12-09 19:17:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:22,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:22,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:22,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 19:17:22,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 19:17:22,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 19:17:22,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:17:22,867 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2018-12-09 19:17:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:23,762 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-12-09 19:17:23,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:17:23,762 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-12-09 19:17:23,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:23,763 INFO L225 Difference]: With dead ends: 44 [2018-12-09 19:17:23,763 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 19:17:23,763 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 [2018-12-09 19:17:23,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 19:17:23,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 19:17:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 19:17:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-09 19:17:23,766 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 25 [2018-12-09 19:17:23,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:23,767 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-09 19:17:23,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 19:17:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-09 19:17:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 19:17:23,767 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:23,767 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] [2018-12-09 19:17:23,768 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:23,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:23,768 INFO L82 PathProgramCache]: Analyzing trace with hash -336723016, now seen corresponding path program 1 times [2018-12-09 19:17:23,768 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:23,768 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:23,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:23,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:23,890 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:17:23,891 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:17:23,892 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:17:23,892 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:17:23,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-09 19:17:23,992 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:17:24,002 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 [2018-12-09 19:17:24,002 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,024 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 [2018-12-09 19:17:24,032 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 [2018-12-09 19:17:24,032 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,035 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-12-09 19:17:24,055 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-09 19:17:24,055 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,061 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 19:17:24,081 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-09 19:17:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:24,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:24,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:24,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:17:24,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:17:24,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:17:24,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:17:24,152 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 6 states. [2018-12-09 19:17:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:24,728 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-12-09 19:17:24,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:17:24,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-09 19:17:24,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:24,730 INFO L225 Difference]: With dead ends: 52 [2018-12-09 19:17:24,730 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 19:17:24,730 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 [2018-12-09 19:17:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 19:17:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 19:17:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 19:17:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-12-09 19:17:24,733 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-12-09 19:17:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:24,733 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-12-09 19:17:24,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:17:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-12-09 19:17:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 19:17:24,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:17:24,734 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] [2018-12-09 19:17:24,734 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:17:24,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:17:24,735 INFO L82 PathProgramCache]: Analyzing trace with hash -997921541, now seen corresponding path program 1 times [2018-12-09 19:17:24,735 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:17:24,735 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-09 19:17:24,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:17:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:17:24,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:17:24,877 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 [2018-12-09 19:17:24,881 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 [2018-12-09 19:17:24,895 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 [2018-12-09 19:17:24,895 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,899 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:17:24,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 19:17:24,914 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:28 [2018-12-09 19:17:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:17:27,268 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:17:27,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:17:27,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-09 19:17:27,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 19:17:27,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 19:17:27,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=156, Unknown=1, NotChecked=0, Total=182 [2018-12-09 19:17:27,277 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 14 states. [2018-12-09 19:17:31,846 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 24 [2018-12-09 19:17:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:17:33,289 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-09 19:17:33,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 19:17:33,290 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-12-09 19:17:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:17:33,290 INFO L225 Difference]: With dead ends: 34 [2018-12-09 19:17:33,290 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:17:33,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=73, Invalid=432, Unknown=1, NotChecked=0, Total=506 [2018-12-09 19:17:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:17:33,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:17:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:17:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:17:33,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-09 19:17:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:17:33,291 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:17:33,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 19:17:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:17:33,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:17:33,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-09 19:17:33,481 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))) [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-09 19:17:33,481 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-09 19:17:33,482 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-12-09 19:17:33,483 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)) [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 86) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-12-09 19:17:33,483 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-12-09 19:17:33,483 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-12-09 19:17:33,484 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))) [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-12-09 19:17:33,484 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))) [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-12-09 19:17:33,484 INFO L448 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-12-09 19:17:33,488 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,491 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,492 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:17:33 BoogieIcfgContainer [2018-12-09 19:17:33,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:17:33,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:17:33,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:17:33,493 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:17:33,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:14" (3/4) ... [2018-12-09 19:17:33,496 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:17:33,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-09 19:17:33,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:17:33,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-12-09 19:17:33,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:17:33,503 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-12-09 19:17:33,503 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 19:17:33,503 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:17:33,519 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) [2018-12-09 19:17:33,519 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x [2018-12-09 19:17:33,532 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe862d0a-bba0-4c47-a851-48dce59a588c/bin-2019/utaipan/witness.graphml [2018-12-09 19:17:33,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:17:33,533 INFO L168 Benchmark]: Toolchain (without parser) took 20182.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:33,534 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:17:33,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.78 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. [2018-12-09 19:17:33,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.07 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. [2018-12-09 19:17:33,534 INFO L168 Benchmark]: Boogie Preprocessor took 51.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -217.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:33,534 INFO L168 Benchmark]: RCFGBuilder took 1030.26 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:33,535 INFO L168 Benchmark]: TraceAbstraction took 18886.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:33,535 INFO L168 Benchmark]: Witness Printer took 39.59 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:17:33,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 156.78 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 16.07 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 51.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -217.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1030.26 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: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18886.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.59 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: 7.0 MB). Peak memory consumption was 7.0 MB. 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 [2018-12-09 19:17:33,538 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,538 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 [2018-12-09 19:17:33,538 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:17:33,539 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, 18.8s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 13.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 233 SDtfs, 261 SDslu, 686 SDs, 0 SdLazy, 438 SolverSat, 41 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.8s 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...