./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 2e3b677629e69b083ff740542124e952dcae7545 ........................................................................................................................................................................................................................................................................................................................................................................................ 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_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 2e3b677629e69b083ff740542124e952dcae7545 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:52:27,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:52:27,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:52:27,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:52:27,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:52:27,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:52:27,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:52:27,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:52:27,846 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:52:27,847 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:52:27,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:52:27,849 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:52:27,850 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:52:27,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:52:27,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:52:27,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:52:27,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:52:27,862 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:52:27,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:52:27,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:52:27,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:52:27,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:52:27,872 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:52:27,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:52:27,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:52:27,876 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:52:27,876 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:52:27,877 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:52:27,878 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:52:27,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:52:27,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:52:27,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:52:27,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:52:27,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:52:27,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:52:27,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:52:27,881 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:52:27,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:52:27,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:52:27,901 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:52:27,901 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:52:27,902 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:52:27,902 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:52:27,902 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:52:27,903 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:52:27,903 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:52:27,903 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:52:27,903 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:52:27,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:52:27,905 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:52:27,906 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:52:27,907 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:52:27,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:52:27,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:52:27,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:52:27,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:52:27,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:27,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:52:27,908 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:52:27,908 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_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 -> 2e3b677629e69b083ff740542124e952dcae7545 [2018-10-26 22:52:27,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:52:27,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:52:27,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:52:27,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:52:27,967 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:52:27,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:28,014 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/9b001d8f9/f173f32912974128bf3a04eb44f7585e/FLAG7318cf4a4 [2018-10-26 22:52:28,389 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:52:28,389 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:28,395 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/9b001d8f9/f173f32912974128bf3a04eb44f7585e/FLAG7318cf4a4 [2018-10-26 22:52:28,407 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/9b001d8f9/f173f32912974128bf3a04eb44f7585e [2018-10-26 22:52:28,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:52:28,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:52:28,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:28,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:52:28,415 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:52:28,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e1d618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28, skipping insertion in model container [2018-10-26 22:52:28,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:52:28,444 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:52:28,604 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:28,608 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:52:28,632 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:28,653 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:52:28,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28 WrapperNode [2018-10-26 22:52:28,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:28,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:28,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:52:28,655 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:52:28,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:28,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:52:28,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:52:28,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:52:28,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... [2018-10-26 22:52:28,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:52:28,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:52:28,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:52:28,744 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:52:28,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:52:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:52:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-10-26 22:52:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-10-26 22:52:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:52:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:52:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:52:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:52:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:52:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:52:29,527 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:52:29,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:29 BoogieIcfgContainer [2018-10-26 22:52:29,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:52:29,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:52:29,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:52:29,538 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:52:29,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:52:28" (1/3) ... [2018-10-26 22:52:29,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fa2a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:29, skipping insertion in model container [2018-10-26 22:52:29,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:28" (2/3) ... [2018-10-26 22:52:29,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fa2a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:29, skipping insertion in model container [2018-10-26 22:52:29,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:29" (3/3) ... [2018-10-26 22:52:29,540 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:29,549 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:52:29,556 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:52:29,572 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:52:29,603 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:52:29,603 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:52:29,603 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:52:29,603 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:52:29,603 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:52:29,604 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:52:29,604 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:52:29,604 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:52:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 22:52:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:52:29,627 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:29,627 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:29,630 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:29,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:29,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-10-26 22:52:29,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:52:29,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:29,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:29,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:29,684 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:52:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:29,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:29,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:52:29,788 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:52:29,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:52:29,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:52:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:52:29,804 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 22:52:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:29,825 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 22:52:29,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:52:29,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 22:52:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:29,835 INFO L225 Difference]: With dead ends: 78 [2018-10-26 22:52:29,835 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:52:29,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:52:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:52:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 22:52:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 22:52:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 22:52:29,872 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 22:52:29,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:29,872 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 22:52:29,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:52:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 22:52:29,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:52:29,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:29,873 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:29,874 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:29,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:29,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-10-26 22:52:29,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:52:29,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:29,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:29,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:29,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:52:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:52:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:52:29,977 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:52:29,992 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,993 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,993 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,994 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,994 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,994 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,994 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,995 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,995 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,995 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,996 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,996 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,996 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,996 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,997 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:29,998 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:29,999 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:30,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:52:30 BoogieIcfgContainer [2018-10-26 22:52:30,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:52:30,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:52:30,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:52:30,021 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:52:30,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:29" (3/4) ... [2018-10-26 22:52:30,025 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:52:30,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:52:30,026 INFO L168 Benchmark]: Toolchain (without parser) took 1616.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,028 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:30,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,030 INFO L168 Benchmark]: Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,030 INFO L168 Benchmark]: RCFGBuilder took 784.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,031 INFO L168 Benchmark]: TraceAbstraction took 491.28 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:30,032 INFO L168 Benchmark]: Witness Printer took 4.57 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. [2018-10-26 22:52:30,035 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.34 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 491.28 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of bitwiseAnd at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=2147483525, huge_ceil=1000000000000000000000000000000] [L76] float x = 0.0f; VAL [huge_ceil=1000000000000000000000000000000, x=0] [L77] CALL, EXPR ceil_float(x) VAL [huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=2147483522, huge_ceil=1000000000000000000000000000000, x=0] [L77] float res = ceil_float(x); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000, res=2147483522, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=2147483522, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 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=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:52:32,160 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:52:32,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:52:32,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:52:32,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:52:32,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:52:32,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:52:32,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:52:32,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:52:32,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:52:32,187 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:52:32,187 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:52:32,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:52:32,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:52:32,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:52:32,189 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:52:32,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:52:32,191 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:52:32,192 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:52:32,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:52:32,202 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:52:32,204 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:52:32,207 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:52:32,209 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:52:32,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:52:32,210 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:52:32,211 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:52:32,211 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:52:32,212 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:52:32,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:52:32,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:52:32,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:52:32,218 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:52:32,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:52:32,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:52:32,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:52:32,220 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:52:32,236 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:52:32,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:52:32,242 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:52:32,242 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:52:32,242 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:52:32,242 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:52:32,242 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:52:32,242 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:52:32,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:52:32,243 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:52:32,244 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:52:32,244 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:52:32,245 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:52:32,245 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:32,245 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:52:32,245 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:52:32,245 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:52:32,245 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:52:32,246 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:52:32,246 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:52:32,246 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:52:32,246 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_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 -> 2e3b677629e69b083ff740542124e952dcae7545 [2018-10-26 22:52:32,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:52:32,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:52:32,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:52:32,310 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:52:32,310 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:52:32,311 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:32,359 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/1ae282b74/777a4f78ec9245be8b62926a20269c90/FLAGd0254cec0 [2018-10-26 22:52:32,732 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:52:32,733 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:32,738 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/1ae282b74/777a4f78ec9245be8b62926a20269c90/FLAGd0254cec0 [2018-10-26 22:52:32,750 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/data/1ae282b74/777a4f78ec9245be8b62926a20269c90 [2018-10-26 22:52:32,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:52:32,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:52:32,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:32,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:52:32,758 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:52:32,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:32" (1/1) ... [2018-10-26 22:52:32,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205a6579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:32, skipping insertion in model container [2018-10-26 22:52:32,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:32" (1/1) ... [2018-10-26 22:52:32,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:52:32,794 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:52:32,955 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:32,959 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:52:32,981 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:33,000 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:52:33,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33 WrapperNode [2018-10-26 22:52:33,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:33,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:33,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:52:33,002 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:52:33,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:33,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:52:33,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:52:33,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:52:33,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... [2018-10-26 22:52:33,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:52:33,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:52:33,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:52:33,065 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:52:33,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:52:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:52:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-10-26 22:52:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-10-26 22:52:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:52:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:52:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:52:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:52:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:52:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:52:33,746 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:52:33,966 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:52:33,983 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:52:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:33 BoogieIcfgContainer [2018-10-26 22:52:33,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:52:33,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:52:33,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:52:33,988 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:52:33,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:52:32" (1/3) ... [2018-10-26 22:52:33,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ee3b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:33, skipping insertion in model container [2018-10-26 22:52:33,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:33" (2/3) ... [2018-10-26 22:52:33,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ee3b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:33, skipping insertion in model container [2018-10-26 22:52:33,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:33" (3/3) ... [2018-10-26 22:52:33,991 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b_true-unreach-call.c [2018-10-26 22:52:33,999 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:52:34,005 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:52:34,018 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:52:34,044 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:52:34,045 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:52:34,045 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:52:34,045 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:52:34,045 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:52:34,045 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:52:34,045 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:52:34,045 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:52:34,046 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:52:34,060 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 22:52:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:52:34,065 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:34,066 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:34,070 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:34,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:34,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-10-26 22:52:34,077 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:34,078 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:52:34,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 22:52:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:34,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:34,163 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:34,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:34,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:52:34,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:52:34,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:52:34,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:52:34,194 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 22:52:34,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:34,215 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 22:52:34,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:52:34,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 22:52:34,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:34,224 INFO L225 Difference]: With dead ends: 78 [2018-10-26 22:52:34,224 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:52:34,227 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:52:34,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:52:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 22:52:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 22:52:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 22:52:34,260 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 22:52:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:34,261 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 22:52:34,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:52:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 22:52:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:52:34,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:34,262 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:34,262 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:34,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-10-26 22:52:34,263 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:34,263 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:52:34,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 22:52:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:34,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:34,542 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:34,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:34,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:52:34,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:52:34,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:52:34,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:52:34,556 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-10-26 22:52:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:35,735 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-10-26 22:52:35,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:52:35,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-26 22:52:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:35,738 INFO L225 Difference]: With dead ends: 60 [2018-10-26 22:52:35,738 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 22:52:35,739 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:52:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 22:52:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-10-26 22:52:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 22:52:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-10-26 22:52:35,746 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-10-26 22:52:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:35,746 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-10-26 22:52:35,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:52:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-10-26 22:52:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 22:52:35,747 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:35,748 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:35,748 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:35,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:35,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1136318903, now seen corresponding path program 1 times [2018-10-26 22:52:35,749 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:35,749 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:35,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:35,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:36,043 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:36,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:36,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:52:36,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:52:36,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:52:36,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:52:36,059 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-10-26 22:52:36,374 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-26 22:52:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:37,211 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-10-26 22:52:37,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 22:52:37,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 22:52:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:37,214 INFO L225 Difference]: With dead ends: 67 [2018-10-26 22:52:37,214 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:52:37,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-26 22:52:37,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:52:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-26 22:52:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:52:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-10-26 22:52:37,220 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-10-26 22:52:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:37,220 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-10-26 22:52:37,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:52:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-10-26 22:52:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 22:52:37,221 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:37,221 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:37,221 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:37,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:37,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1197614518, now seen corresponding path program 1 times [2018-10-26 22:52:37,222 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:37,222 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:37,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:37,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:38,614 WARN L179 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 22:52:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:38,620 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:38,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:38,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:52:38,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:52:38,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:52:38,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:52:38,638 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-10-26 22:52:39,943 WARN L179 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 22:52:40,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:40,489 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-10-26 22:52:40,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:52:40,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-26 22:52:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:40,495 INFO L225 Difference]: With dead ends: 52 [2018-10-26 22:52:40,495 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:52:40,495 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:52:40,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:52:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 22:52:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:52:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-10-26 22:52:40,500 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-10-26 22:52:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:40,500 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-10-26 22:52:40,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:52:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-10-26 22:52:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 22:52:40,502 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:40,503 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:40,503 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:40,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:40,503 INFO L82 PathProgramCache]: Analyzing trace with hash -913385180, now seen corresponding path program 1 times [2018-10-26 22:52:40,504 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:40,504 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:40,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:40,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:40,678 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:40,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:40,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:52:40,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:52:40,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:52:40,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:52:40,688 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-10-26 22:52:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:41,006 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-10-26 22:52:41,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:52:41,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-10-26 22:52:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:41,009 INFO L225 Difference]: With dead ends: 57 [2018-10-26 22:52:41,009 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:52:41,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:52:41,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:52:41,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-26 22:52:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:52:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-10-26 22:52:41,016 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-10-26 22:52:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:41,016 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-10-26 22:52:41,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:52:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-10-26 22:52:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:52:41,016 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:41,017 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:41,017 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:41,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:41,017 INFO L82 PathProgramCache]: Analyzing trace with hash 198066784, now seen corresponding path program 1 times [2018-10-26 22:52:41,017 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:41,017 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:41,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:41,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:41,170 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:41,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:41,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:52:41,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:52:41,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:52:41,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:52:41,180 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-10-26 22:52:41,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:41,563 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-10-26 22:52:41,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:52:41,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-26 22:52:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:41,566 INFO L225 Difference]: With dead ends: 52 [2018-10-26 22:52:41,566 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:52:41,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:52:41,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:52:41,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 22:52:41,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:52:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-26 22:52:41,570 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-10-26 22:52:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:41,570 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-26 22:52:41,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:52:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-26 22:52:41,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:52:41,571 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:41,571 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:41,571 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:41,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:41,571 INFO L82 PathProgramCache]: Analyzing trace with hash -194960226, now seen corresponding path program 1 times [2018-10-26 22:52:41,572 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:41,572 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/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 [2018-10-26 22:52:41,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:41,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:41,748 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:41,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:41,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-26 22:52:41,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 22:52:41,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 22:52:41,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:52:41,758 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 8 states. [2018-10-26 22:52:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:42,032 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-10-26 22:52:42,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:52:42,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-10-26 22:52:42,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:42,033 INFO L225 Difference]: With dead ends: 37 [2018-10-26 22:52:42,033 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:52:42,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:52:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:52:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 22:52:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:52:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-10-26 22:52:42,038 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-10-26 22:52:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:42,038 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-10-26 22:52:42,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 22:52:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-10-26 22:52:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 22:52:42,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:42,039 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:42,039 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:42,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:42,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1188317242, now seen corresponding path program 1 times [2018-10-26 22:52:42,040 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:42,040 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-10-26 22:52:42,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:42,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:52:42,379 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:52:42,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:52:42,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-26 22:52:42,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 22:52:42,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 22:52:42,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-10-26 22:52:42,388 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 13 states. [2018-10-26 22:52:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:52:43,182 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-10-26 22:52:43,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 22:52:43,183 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-10-26 22:52:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:52:43,183 INFO L225 Difference]: With dead ends: 34 [2018-10-26 22:52:43,183 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:52:43,184 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2018-10-26 22:52:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:52:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:52:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:52:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:52:43,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-26 22:52:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:52:43,185 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:52:43,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 22:52:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:52:43,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:52:43,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:52:43,431 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-26 22:52:43,547 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-26 22:52:43,615 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:52:43,616 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:52:43,616 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:52:43,616 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:52:43,616 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-10-26 22:52:43,616 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:52:43,616 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:52:43,616 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-10-26 22:52:43,616 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-10-26 22:52:43,616 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L421 ceAbstractionStarter]: At program point L80-1(line 80) the Hoare annotation is: (or (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0)) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-10-26 22:52:43,617 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |ceil_float_#in~x| ceil_float_~x)) [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-10-26 22:52:43,618 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-10-26 22:52:43,619 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-10-26 22:52:43,619 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-26 22:52:43,619 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-10-26 22:52:43,619 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-10-26 22:52:43,619 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-10-26 22:52:43,620 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 22:52:43,620 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-10-26 22:52:43,620 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-10-26 22:52:43,620 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-10-26 22:52:43,620 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-10-26 22:52:43,625 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,626 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,630 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,630 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,631 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,631 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,631 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,632 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:52:43 BoogieIcfgContainer [2018-10-26 22:52:43,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:52:43,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:52:43,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:52:43,635 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:52:43,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:33" (3/4) ... [2018-10-26 22:52:43,638 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:52:43,643 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:52:43,644 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:52:43,644 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-10-26 22:52:43,644 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 22:52:43,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 22:52:43,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 22:52:43,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 22:52:43,672 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x [2018-10-26 22:52:43,672 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) [2018-10-26 22:52:43,701 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_26206732-d198-4dbc-8b21-0bf1e7c55cff/bin-2019/utaipan/witness.graphml [2018-10-26 22:52:43,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:52:43,702 INFO L168 Benchmark]: Toolchain (without parser) took 10948.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -248.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:43,703 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:43,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.26 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:43,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.33 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:43,703 INFO L168 Benchmark]: Boogie Preprocessor took 28.13 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:43,704 INFO L168 Benchmark]: RCFGBuilder took 918.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:43,704 INFO L168 Benchmark]: TraceAbstraction took 9649.47 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -62.7 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:43,704 INFO L168 Benchmark]: Witness Printer took 66.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:43,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 246.26 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.33 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.13 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 918.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9649.47 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -62.7 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 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 RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: 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: 59]: Loop Invariant [2018-10-26 22:52:43,712 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,712 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,712 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,713 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) - InvariantResult [Line: 16]: Loop Invariant [2018-10-26 22:52:43,717 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,717 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,717 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 22:52:43,718 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 9.5s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 279 SDslu, 775 SDs, 0 SdLazy, 444 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 22 PreInvPairs, 25 NumberOfFragments, 65 HoareAnnotationTreeSize, 22 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 179 ConstructedInterpolants, 26 QuantifiedInterpolants, 26926 SizeOfPredicates, 74 NumberOfNonLiveVariables, 704 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...