./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a_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_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/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 887f0640b1b5afa2d39789f5b16e950cef616033 ........................................................................................................................................................................................................................................................................................................................................................................................ 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_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/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 887f0640b1b5afa2d39789f5b16e950cef616033 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:54:48,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:54:48,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:54:48,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:54:48,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:54:48,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:54:48,151 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:54:48,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:54:48,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:54:48,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:54:48,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:54:48,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:54:48,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:54:48,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:54:48,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:54:48,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:54:48,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:54:48,158 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:54:48,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:54:48,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:54:48,160 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:54:48,161 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:54:48,163 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:54:48,163 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:54:48,163 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:54:48,164 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:54:48,164 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:54:48,165 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:54:48,165 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:54:48,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:54:48,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:54:48,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:54:48,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:54:48,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:54:48,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:54:48,168 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:54:48,168 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:54:48,178 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:54:48,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:54:48,179 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:54:48,179 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:54:48,180 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:54:48,180 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:54:48,181 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:54:48,181 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:54:48,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:54:48,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:54:48,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:54:48,182 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:54:48,182 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:54:48,183 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:54:48,183 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:54:48,184 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:54:48,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:54:48,184 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:54:48,184 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_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-11-10 05:54:48,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:54:48,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:54:48,219 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:54:48,220 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:54:48,220 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:54:48,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:48,266 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/11515365e/744119ec21f1466990b184d71f676baa/FLAGa8452ce2c [2018-11-10 05:54:48,684 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:54:48,685 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:48,690 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/11515365e/744119ec21f1466990b184d71f676baa/FLAGa8452ce2c [2018-11-10 05:54:48,700 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/11515365e/744119ec21f1466990b184d71f676baa [2018-11-10 05:54:48,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:54:48,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:54:48,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:54:48,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:54:48,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:54:48,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b52ffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48, skipping insertion in model container [2018-11-10 05:54:48,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:54:48,728 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:54:48,836 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:54:48,838 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:54:48,852 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:54:48,866 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:54:48,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48 WrapperNode [2018-11-10 05:54:48,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:54:48,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:54:48,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:54:48,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:54:48,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:54:48,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:54:48,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:54:48,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:54:48,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... [2018-11-10 05:54:48,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:54:48,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:54:48,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:54:48,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:54:48,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:54:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:54:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:54:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:54:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:54:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-10 05:54:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-10 05:54:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:54:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:54:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 05:54:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 05:54:49,181 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:54:49,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:49 BoogieIcfgContainer [2018-11-10 05:54:49,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:54:49,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:54:49,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:54:49,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:54:49,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:54:48" (1/3) ... [2018-11-10 05:54:49,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206d83b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:49, skipping insertion in model container [2018-11-10 05:54:49,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:48" (2/3) ... [2018-11-10 05:54:49,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206d83b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:49, skipping insertion in model container [2018-11-10 05:54:49,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:49" (3/3) ... [2018-11-10 05:54:49,187 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:49,193 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:54:49,199 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:54:49,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:54:49,234 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:54:49,234 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:54:49,234 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:54:49,234 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:54:49,234 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:54:49,234 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:54:49,234 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:54:49,234 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:54:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-10 05:54:49,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:54:49,250 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:54:49,251 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:54:49,252 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:54:49,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:54:49,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1548897067, now seen corresponding path program 1 times [2018-11-10 05:54:49,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:54:49,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:54:49,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:54:49,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:54:49,287 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:54:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:54:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:54:49,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:54:49,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:54:49,344 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:54:49,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:54:49,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:54:49,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:54:49,357 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-10 05:54:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:54:49,372 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-10 05:54:49,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:54:49,373 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 05:54:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:54:49,378 INFO L225 Difference]: With dead ends: 56 [2018-11-10 05:54:49,378 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 05:54:49,380 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:54:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 05:54:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 05:54:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 05:54:49,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-10 05:54:49,402 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-10 05:54:49,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:54:49,403 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-10 05:54:49,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:54:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-10 05:54:49,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:54:49,403 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:54:49,404 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:54:49,404 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:54:49,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:54:49,404 INFO L82 PathProgramCache]: Analyzing trace with hash -483564177, now seen corresponding path program 1 times [2018-11-10 05:54:49,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:54:49,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:54:49,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:54:49,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:54:49,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:54:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:54:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:54:49,469 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:54:49,477 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,479 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,479 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,479 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,479 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,479 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,480 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,481 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,481 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,481 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,481 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,482 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,482 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 05:54:49,482 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:54:49,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:54:49 BoogieIcfgContainer [2018-11-10 05:54:49,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:54:49,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:54:49,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:54:49,495 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:54:49,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:49" (3/4) ... [2018-11-10 05:54:49,498 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:54:49,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:54:49,499 INFO L168 Benchmark]: Toolchain (without parser) took 796.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -120.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,500 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:54:49,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.95 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,502 INFO L168 Benchmark]: Boogie Preprocessor took 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,502 INFO L168 Benchmark]: RCFGBuilder took 272.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,503 INFO L168 Benchmark]: TraceAbstraction took 312.01 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:49,503 INFO L168 Benchmark]: Witness Printer took 3.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:54:49,506 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.95 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 272.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 312.01 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.63 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: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; VAL [x=0] [L46] CALL, EXPR fabs_float(x) [L13] __uint32_t ix; [L15] CALL ieee_float_shape_type gf_u; [L15] RET ieee_float_shape_type gf_u; [L16] CALL gf_u.value = (x) [L16] RET gf_u.value = (x) [L17] CALL, EXPR gf_u.word [L17] RET, EXPR gf_u.word [L17] (ix) = gf_u.word [L17] RET (ix) = gf_u.word [L18] COND FALSE !(0) [L20] CALL ieee_float_shape_type sf_u; [L20] RET ieee_float_shape_type sf_u; [L21] CALL sf_u.word = (ix & 0x7fffffff) [L21] RET sf_u.word = (ix & 0x7fffffff) [L22] CALL, EXPR sf_u.value [L22] RET, EXPR sf_u.value [L22] (x) = sf_u.value [L22] RET (x) = sf_u.value [L23] COND FALSE !(0) [L24] RET return x; [L46] EXPR fabs_float(x) VAL [fabs_float(x)=11, x=0] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=11, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=11, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 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=32occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:54:50,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:54:50,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:54:50,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:54:50,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:54:50,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:54:50,959 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:54:50,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:54:50,961 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:54:50,962 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:54:50,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:54:50,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:54:50,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:54:50,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:54:50,965 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:54:50,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:54:50,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:54:50,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:54:50,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:54:50,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:54:50,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:54:50,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:54:50,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:54:50,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:54:50,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:54:50,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:54:50,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:54:50,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:54:50,976 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:54:50,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:54:50,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:54:50,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:54:50,977 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:54:50,977 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:54:50,978 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:54:50,979 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:54:50,979 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 05:54:50,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:54:50,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:54:50,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:54:50,990 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:54:50,991 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:54:50,991 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:54:50,991 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:54:50,991 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:54:50,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:54:50,992 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 05:54:50,993 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 05:54:50,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:54:50,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:54:50,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:54:50,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:54:50,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:54:50,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 05:54:50,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:54:50,995 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 05:54:50,995 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 05:54:50,995 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_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-11-10 05:54:51,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:54:51,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:54:51,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:54:51,035 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:54:51,035 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:54:51,035 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:51,071 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/5644f4455/bb7c0daebc4345d185bf8c2ec3185960/FLAG96216011a [2018-11-10 05:54:51,466 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:54:51,466 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/sv-benchmarks/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:51,472 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/5644f4455/bb7c0daebc4345d185bf8c2ec3185960/FLAG96216011a [2018-11-10 05:54:51,481 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/data/5644f4455/bb7c0daebc4345d185bf8c2ec3185960 [2018-11-10 05:54:51,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:54:51,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:54:51,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:54:51,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:54:51,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:54:51,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98713a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51, skipping insertion in model container [2018-11-10 05:54:51,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:54:51,509 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:54:51,618 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:54:51,621 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:54:51,635 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:54:51,656 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:54:51,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51 WrapperNode [2018-11-10 05:54:51,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:54:51,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:54:51,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:54:51,657 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:54:51,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:54:51,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:54:51,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:54:51,689 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:54:51,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... [2018-11-10 05:54:51,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:54:51,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:54:51,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:54:51,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:54:51,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:54:51,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:54:51,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:54:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:54:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:54:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-10 05:54:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-10 05:54:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:54:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:54:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 05:54:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 05:54:51,930 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:54:51,991 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:54:51,997 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:54:51,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:51 BoogieIcfgContainer [2018-11-10 05:54:51,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:54:51,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:54:51,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:54:52,001 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:54:52,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:54:51" (1/3) ... [2018-11-10 05:54:52,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7145d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:52, skipping insertion in model container [2018-11-10 05:54:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:54:51" (2/3) ... [2018-11-10 05:54:52,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7145d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:54:52, skipping insertion in model container [2018-11-10 05:54:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:51" (3/3) ... [2018-11-10 05:54:52,005 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-11-10 05:54:52,014 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:54:52,018 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:54:52,027 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:54:52,046 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:54:52,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:54:52,047 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:54:52,047 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:54:52,047 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:54:52,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:54:52,047 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:54:52,047 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:54:52,047 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:54:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-10 05:54:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:54:52,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:54:52,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:54:52,063 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:54:52,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:54:52,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1548897067, now seen corresponding path program 1 times [2018-11-10 05:54:52,070 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:54:52,070 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 05:54:52,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:54:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:54:52,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:54:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:54:52,126 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:54:52,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:54:52,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:54:52,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:54:52,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:54:52,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:54:52,147 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-10 05:54:52,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:54:52,163 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-10 05:54:52,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:54:52,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-10 05:54:52,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:54:52,169 INFO L225 Difference]: With dead ends: 56 [2018-11-10 05:54:52,169 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 05:54:52,172 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:54:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 05:54:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 05:54:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 05:54:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-10 05:54:52,195 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-10 05:54:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:54:52,195 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-10 05:54:52,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:54:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-10 05:54:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:54:52,196 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:54:52,196 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:54:52,197 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:54:52,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:54:52,198 INFO L82 PathProgramCache]: Analyzing trace with hash -483564177, now seen corresponding path program 1 times [2018-11-10 05:54:52,198 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:54:52,198 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 05:54:52,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:54:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:54:52,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:54:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:54:52,429 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:54:52,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:54:52,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 05:54:52,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 05:54:52,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 05:54:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 05:54:52,443 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-10 05:54:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:54:52,767 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-10 05:54:52,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 05:54:52,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-10 05:54:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:54:52,768 INFO L225 Difference]: With dead ends: 31 [2018-11-10 05:54:52,769 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 05:54:52,769 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-10 05:54:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 05:54:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-10 05:54:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-10 05:54:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-10 05:54:52,774 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 19 [2018-11-10 05:54:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:54:52,775 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-10 05:54:52,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 05:54:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-10 05:54:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 05:54:52,776 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:54:52,776 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] [2018-11-10 05:54:52,776 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:54:52,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:54:52,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1711407256, now seen corresponding path program 1 times [2018-11-10 05:54:52,777 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:54:52,777 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 05:54:52,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:54:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:54:52,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:54:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:54:53,154 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:54:53,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:54:53,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-10 05:54:53,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 05:54:53,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 05:54:53,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-10 05:54:53,163 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 14 states. [2018-11-10 05:54:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:54:53,717 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-10 05:54:53,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 05:54:53,718 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-10 05:54:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:54:53,718 INFO L225 Difference]: With dead ends: 28 [2018-11-10 05:54:53,718 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:54:53,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-11-10 05:54:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:54:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:54:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:54:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:54:53,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-10 05:54:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:54:53,720 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:54:53,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 05:54:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:54:53,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:54:53,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 12 25) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point L19-2(lines 12 25) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 12 25) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 12 25) the Hoare annotation is: true [2018-11-10 05:54:53,784 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-10 05:54:53,784 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:54:53,785 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 39 55) the Hoare annotation is: true [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 39 55) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-10 05:54:53,785 INFO L421 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (_ +zero 8 24)) (= main_~res~0 (let ((.cse0 (bvand fabs_float_~ix~0 (_ bv2147483647 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2018-11-10 05:54:53,785 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L421 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 52) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 39 55) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point L30-4(lines 30 34) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 27 37) no Hoare annotation was computed. [2018-11-10 05:54:53,786 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 27 37) the Hoare annotation is: true [2018-11-10 05:54:53,786 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 27 37) no Hoare annotation was computed. [2018-11-10 05:54:53,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:54:53 BoogieIcfgContainer [2018-11-10 05:54:53,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:54:53,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:54:53,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:54:53,795 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:54:53,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:54:51" (3/4) ... [2018-11-10 05:54:53,798 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:54:53,802 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:54:53,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-10 05:54:53,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:54:53,803 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 05:54:53,806 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 05:54:53,807 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 05:54:53,807 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 05:54:53,824 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 05:54:53,824 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 05:54:53,842 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c4a3b1b1-aebb-4045-9b2e-f84202a5af3f/bin-2019/utaipan/witness.graphml [2018-11-10 05:54:53,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:54:53,843 INFO L168 Benchmark]: Toolchain (without parser) took 2359.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 948.7 MB in the beginning and 964.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 133.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:53,844 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:54:53,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:53,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.72 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:53,846 INFO L168 Benchmark]: Boogie Preprocessor took 22.53 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:54:53,846 INFO L168 Benchmark]: RCFGBuilder took 286.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:53,847 INFO L168 Benchmark]: TraceAbstraction took 1796.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.2 MB in the end (delta: 156.6 MB). Peak memory consumption was 156.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:54:53,847 INFO L168 Benchmark]: Witness Printer took 47.47 ms. Allocated memory is still 1.2 GB. Free memory is still 964.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:54:53,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 171.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 31.72 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.53 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 286.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1796.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.2 MB in the end (delta: 156.6 MB). Peak memory consumption was 156.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.47 ms. Allocated memory is still 1.2 GB. Free memory is still 964.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 277 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 46 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 14 QuantifiedInterpolants, 11692 SizeOfPredicates, 45 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...