./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_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_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/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 93969ab48cbc6136b5ad0701aa11c46dc35b2390 .......................................................................................................................................................................................................................................................................................................................................................................................... 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_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/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 93969ab48cbc6136b5ad0701aa11c46dc35b2390 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:43:38,181 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:43:38,183 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:43:38,193 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:43:38,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:43:38,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:43:38,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:43:38,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:43:38,201 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:43:38,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:43:38,202 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:43:38,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:43:38,203 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:43:38,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:43:38,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:43:38,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:43:38,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:43:38,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:43:38,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:43:38,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:43:38,212 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:43:38,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:43:38,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:43:38,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:43:38,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:43:38,216 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:43:38,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:43:38,217 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:43:38,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:43:38,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:43:38,219 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:43:38,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:43:38,220 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:43:38,220 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:43:38,221 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:43:38,221 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:43:38,222 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:43:38,233 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:43:38,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:43:38,234 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:43:38,234 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:43:38,235 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:43:38,235 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:43:38,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:43:38,236 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:43:38,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:43:38,236 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:43:38,236 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:43:38,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:43:38,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:43:38,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:43:38,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:43:38,241 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:43:38,241 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:43:38,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:43:38,241 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:43:38,241 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_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/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 -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2018-10-27 00:43:38,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:43:38,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:43:38,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:43:38,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:43:38,283 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:43:38,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:38,330 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/0a795918a/7937431b10dc4b14962a0d0bf6024cd5/FLAGa862480d6 [2018-10-27 00:43:38,726 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:43:38,730 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:38,737 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/0a795918a/7937431b10dc4b14962a0d0bf6024cd5/FLAGa862480d6 [2018-10-27 00:43:38,752 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/0a795918a/7937431b10dc4b14962a0d0bf6024cd5 [2018-10-27 00:43:38,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:43:38,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:43:38,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:43:38,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:43:38,765 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:43:38,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:43:38" (1/1) ... [2018-10-27 00:43:38,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29248f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:38, skipping insertion in model container [2018-10-27 00:43:38,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:43:38" (1/1) ... [2018-10-27 00:43:38,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:43:38,804 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:43:38,978 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:43:38,983 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:43:39,012 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:43:39,035 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:43:39,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39 WrapperNode [2018-10-27 00:43:39,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:43:39,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:43:39,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:43:39,036 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:43:39,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:43:39,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:43:39,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:43:39,081 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:43:39,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... [2018-10-27 00:43:39,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:43:39,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:43:39,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:43:39,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:43:39,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:43:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:43:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:43:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:43:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:43:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-27 00:43:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-27 00:43:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:43:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:43:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-27 00:43:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-27 00:43:39,708 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:43:39,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:39 BoogieIcfgContainer [2018-10-27 00:43:39,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:43:39,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:43:39,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:43:39,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:43:39,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:43:38" (1/3) ... [2018-10-27 00:43:39,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dfdf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:43:39, skipping insertion in model container [2018-10-27 00:43:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:39" (2/3) ... [2018-10-27 00:43:39,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11dfdf66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:43:39, skipping insertion in model container [2018-10-27 00:43:39,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:39" (3/3) ... [2018-10-27 00:43:39,715 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:39,724 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:43:39,730 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:43:39,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:43:39,770 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:43:39,770 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:43:39,771 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:43:39,771 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:43:39,771 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:43:39,771 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:43:39,771 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:43:39,771 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:43:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-27 00:43:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 00:43:39,791 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:39,792 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:39,794 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:39,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:39,799 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-10-27 00:43:39,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:43:39,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:43:39,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:39,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:43:39,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:43:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:39,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:39,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:43:39,898 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:43:39,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:43:39,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:43:39,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:43:39,911 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-27 00:43:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:39,930 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-27 00:43:39,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:43:39,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-27 00:43:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:39,939 INFO L225 Difference]: With dead ends: 78 [2018-10-27 00:43:39,940 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 00:43:39,942 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:43:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 00:43:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-27 00:43:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 00:43:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-27 00:43:39,976 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-27 00:43:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:39,976 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 00:43:39,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:43:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-27 00:43:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 00:43:39,977 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:39,978 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:39,978 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:39,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-10-27 00:43:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:43:39,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:43:39,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:39,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:43:39,980 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:43:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:43:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:43:40,098 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:43:40,114 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,115 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,115 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,115 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,116 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,116 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,116 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,116 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,117 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,117 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,117 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,117 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,118 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,118 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,118 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,119 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,119 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,119 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,119 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,119 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,120 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,120 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:43:40,120 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,120 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:43:40,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:43:40 BoogieIcfgContainer [2018-10-27 00:43:40,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:43:40,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:43:40,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:43:40,141 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:43:40,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:39" (3/4) ... [2018-10-27 00:43:40,145 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:43:40,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:43:40,146 INFO L168 Benchmark]: Toolchain (without parser) took 1388.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,147 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:40,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.89 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.29 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,149 INFO L168 Benchmark]: Boogie Preprocessor took 28.94 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,151 INFO L168 Benchmark]: RCFGBuilder took 598.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,152 INFO L168 Benchmark]: TraceAbstraction took 430.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:40,152 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:40,155 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.89 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 44.29 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.94 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 598.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 430.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.15 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.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 - 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000] [L75] float x = -0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_floor=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [huge_floor=1000000000000000000000000000000] [L76] EXPR floor_float(x) VAL [floor_float(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450949] [L76] float res = floor_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000, res=6442450949, res == -0.0f && __signbit_float(res) == 1=0, x=6442450949] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:43:41,990 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:43:41,991 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:43:42,002 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:43:42,003 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:43:42,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:43:42,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:43:42,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:43:42,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:43:42,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:43:42,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:43:42,016 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:43:42,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:43:42,017 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:43:42,018 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:43:42,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:43:42,019 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:43:42,020 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:43:42,021 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:43:42,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:43:42,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:43:42,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:43:42,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:43:42,026 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:43:42,026 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:43:42,027 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:43:42,028 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:43:42,028 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:43:42,029 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:43:42,030 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:43:42,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:43:42,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:43:42,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:43:42,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:43:42,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:43:42,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:43:42,033 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:43:42,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:43:42,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:43:42,045 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:43:42,045 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:43:42,045 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:43:42,045 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:43:42,045 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:43:42,046 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:43:42,046 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:43:42,047 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:43:42,048 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:43:42,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:43:42,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:43:42,049 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:43:42,049 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:43:42,049 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:43:42,049 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:43:42,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:43:42,051 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:43:42,052 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:43:42,052 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_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/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 -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2018-10-27 00:43:42,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:43:42,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:43:42,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:43:42,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:43:42,103 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:43:42,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:42,153 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/3235add13/b1c1f6bf6e4d46ac9d8aa431d8276b1f/FLAG7eb061ffd [2018-10-27 00:43:42,579 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:43:42,580 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:42,589 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/3235add13/b1c1f6bf6e4d46ac9d8aa431d8276b1f/FLAG7eb061ffd [2018-10-27 00:43:42,601 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/data/3235add13/b1c1f6bf6e4d46ac9d8aa431d8276b1f [2018-10-27 00:43:42,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:43:42,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:43:42,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:43:42,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:43:42,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:43:42,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5356465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42, skipping insertion in model container [2018-10-27 00:43:42,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:43:42,646 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:43:42,824 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:43:42,833 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:43:42,860 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:43:42,879 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:43:42,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42 WrapperNode [2018-10-27 00:43:42,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:43:42,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:43:42,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:43:42,881 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:43:42,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:43:42,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:43:42,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:43:42,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:43:42,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... [2018-10-27 00:43:42,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:43:42,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:43:42,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:43:42,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:43:42,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:43:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:43:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:43:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:43:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:43:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-27 00:43:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-27 00:43:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:43:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:43:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-27 00:43:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-27 00:43:43,265 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:43:43,739 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:43:43,748 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:43:43,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:43 BoogieIcfgContainer [2018-10-27 00:43:43,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:43:43,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:43:43,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:43:43,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:43:43,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:43:42" (1/3) ... [2018-10-27 00:43:43,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:43:43, skipping insertion in model container [2018-10-27 00:43:43,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:43:42" (2/3) ... [2018-10-27 00:43:43,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:43:43, skipping insertion in model container [2018-10-27 00:43:43,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:43" (3/3) ... [2018-10-27 00:43:43,756 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c_true-unreach-call.c [2018-10-27 00:43:43,765 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:43:43,771 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:43:43,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:43:43,802 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:43:43,802 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:43:43,802 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:43:43,802 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:43:43,802 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:43:43,803 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:43:43,803 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:43:43,803 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:43:43,803 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:43:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-27 00:43:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 00:43:43,830 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:43,831 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:43,833 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:43,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:43,843 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-10-27 00:43:43,847 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:43,848 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:43:43,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:43,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:43,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:43,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:43,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:43:43,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:43:43,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:43:43,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:43:43,950 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-27 00:43:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:43,967 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-27 00:43:43,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:43:43,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-27 00:43:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:43,977 INFO L225 Difference]: With dead ends: 78 [2018-10-27 00:43:43,977 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 00:43:43,986 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:43:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 00:43:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-27 00:43:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 00:43:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-27 00:43:44,017 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-27 00:43:44,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:44,017 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 00:43:44,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:43:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-27 00:43:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 00:43:44,018 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:44,018 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:44,019 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:44,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:44,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-10-27 00:43:44,019 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:44,020 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:43:44,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:44,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:44,397 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:44,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:44,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:43:44,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:43:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:43:44,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:43:44,416 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-10-27 00:43:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:45,460 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-10-27 00:43:45,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:43:45,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-27 00:43:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:45,463 INFO L225 Difference]: With dead ends: 60 [2018-10-27 00:43:45,463 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:43:45,465 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:43:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:43:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-10-27 00:43:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-27 00:43:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-10-27 00:43:45,484 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-10-27 00:43:45,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:45,485 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-10-27 00:43:45,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:43:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-10-27 00:43:45,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:43:45,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:45,486 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:45,486 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:45,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:45,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1376484092, now seen corresponding path program 1 times [2018-10-27 00:43:45,487 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:45,487 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:45,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:45,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:45,635 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:45,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:45,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:43:45,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:43:45,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:43:45,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:43:45,644 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-10-27 00:43:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:46,646 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-10-27 00:43:46,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 00:43:46,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-27 00:43:46,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:46,655 INFO L225 Difference]: With dead ends: 67 [2018-10-27 00:43:46,655 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 00:43:46,655 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:43:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 00:43:46,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-27 00:43:46,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 00:43:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-10-27 00:43:46,661 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-10-27 00:43:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:46,661 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-10-27 00:43:46,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:43:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-10-27 00:43:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 00:43:46,662 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:46,665 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:46,665 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:46,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:46,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1666542110, now seen corresponding path program 1 times [2018-10-27 00:43:46,666 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:46,666 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:46,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:46,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:47,591 WARN L179 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:43:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:47,596 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:47,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:47,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:43:47,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:43:47,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:43:47,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:43:47,613 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-10-27 00:43:48,599 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-27 00:43:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:48,909 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-10-27 00:43:48,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:43:48,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-27 00:43:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:48,914 INFO L225 Difference]: With dead ends: 52 [2018-10-27 00:43:48,914 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 00:43:48,915 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:43:48,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 00:43:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-27 00:43:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 00:43:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-10-27 00:43:48,920 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-10-27 00:43:48,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:48,921 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-10-27 00:43:48,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:43:48,921 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-10-27 00:43:48,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 00:43:48,922 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:48,922 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:48,922 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:48,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:48,922 INFO L82 PathProgramCache]: Analyzing trace with hash 66145073, now seen corresponding path program 1 times [2018-10-27 00:43:48,923 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:48,923 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:48,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:48,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:49,086 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:49,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:49,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:43:49,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:43:49,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:43:49,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:43:49,094 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-10-27 00:43:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:49,466 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-10-27 00:43:49,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:43:49,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-10-27 00:43:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:49,468 INFO L225 Difference]: With dead ends: 57 [2018-10-27 00:43:49,468 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 00:43:49,468 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:43:49,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 00:43:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-27 00:43:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 00:43:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-10-27 00:43:49,473 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-10-27 00:43:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:49,473 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-10-27 00:43:49,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:43:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-10-27 00:43:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 00:43:49,475 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:49,475 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:49,475 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:49,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:49,475 INFO L82 PathProgramCache]: Analyzing trace with hash -173589656, now seen corresponding path program 1 times [2018-10-27 00:43:49,475 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:49,475 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:49,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:49,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:49,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:49,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:49,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:43:49,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:43:49,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:43:49,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:43:49,649 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-10-27 00:43:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:49,977 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-10-27 00:43:49,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:43:49,979 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-27 00:43:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:49,980 INFO L225 Difference]: With dead ends: 52 [2018-10-27 00:43:49,980 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 00:43:49,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:43:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 00:43:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-27 00:43:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 00:43:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-27 00:43:49,984 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-10-27 00:43:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:49,984 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-27 00:43:49,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:43:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-27 00:43:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 00:43:49,985 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:49,985 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:49,985 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:49,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:49,985 INFO L82 PathProgramCache]: Analyzing trace with hash -566616666, now seen corresponding path program 1 times [2018-10-27 00:43:49,986 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:49,986 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:49,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:50,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:50,154 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:50,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:50,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-27 00:43:50,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:43:50,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:43:50,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:43:50,166 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 8 states. [2018-10-27 00:43:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:50,570 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-10-27 00:43:50,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:43:50,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-10-27 00:43:50,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:50,571 INFO L225 Difference]: With dead ends: 37 [2018-10-27 00:43:50,571 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 00:43:50,571 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-27 00:43:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 00:43:50,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-27 00:43:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 00:43:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-10-27 00:43:50,574 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-10-27 00:43:50,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:50,574 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-10-27 00:43:50,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:43:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-10-27 00:43:50,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-27 00:43:50,575 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:43:50,576 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:43:50,576 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:43:50,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:43:50,577 INFO L82 PathProgramCache]: Analyzing trace with hash -132351409, now seen corresponding path program 1 times [2018-10-27 00:43:50,577 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:43:50,577 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-10-27 00:43:50,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:43:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:43:50,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:43:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:43:50,853 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:43:50,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:43:50,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-27 00:43:50,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 00:43:50,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 00:43:50,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:43:50,862 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 13 states. [2018-10-27 00:43:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:43:51,382 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-10-27 00:43:51,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 00:43:51,382 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-10-27 00:43:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:43:51,383 INFO L225 Difference]: With dead ends: 34 [2018-10-27 00:43:51,383 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:43:51,383 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2018-10-27 00:43:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:43:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:43:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:43:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:43:51,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-27 00:43:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:43:51,384 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:43:51,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-27 00:43:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:43:51,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:43:51,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:43:51,719 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:43:51,719 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:43:51,719 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (= |floor_float_#in~x| floor_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-10-27 00:43:51,720 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0) [2018-10-27 00:43:51,721 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-10-27 00:43:51,721 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (or (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |main_#t~short8| (= main_~res~0 .cse0) (= main_~x~0 .cse0))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 8 24))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-10-27 00:43:51,722 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-10-27 00:43:51,723 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-10-27 00:43:51,723 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-10-27 00:43:51,729 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,729 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,732 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,732 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,733 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,733 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,733 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,734 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:43:51 BoogieIcfgContainer [2018-10-27 00:43:51,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:43:51,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:43:51,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:43:51,736 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:43:51,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:43:43" (3/4) ... [2018-10-27 00:43:51,741 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:43:51,747 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:43:51,747 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-10-27 00:43:51,748 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:43:51,748 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-27 00:43:51,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-27 00:43:51,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-27 00:43:51,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-27 00:43:51,777 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) [2018-10-27 00:43:51,777 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x [2018-10-27 00:43:51,805 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e49dfecd-c8f8-4868-8830-dbbb8d977e0c/bin-2019/utaipan/witness.graphml [2018-10-27 00:43:51,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:43:51,806 INFO L168 Benchmark]: Toolchain (without parser) took 9199.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:51,807 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:51,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.63 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:51,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:51,807 INFO L168 Benchmark]: Boogie Preprocessor took 33.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:43:51,808 INFO L168 Benchmark]: RCFGBuilder took 801.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -128.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:51,808 INFO L168 Benchmark]: TraceAbstraction took 7985.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -78.4 MB). Peak memory consumption was 301.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:51,808 INFO L168 Benchmark]: Witness Printer took 70.02 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:43:51,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.63 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.54 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 801.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -128.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7985.39 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -78.4 MB). Peak memory consumption was 301.5 MB. Max. memory is 11.5 GB. * Witness Printer took 70.02 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-10-27 00:43:51,816 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,816 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,816 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,816 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-10-27 00:43:51,817 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,817 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,817 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:43:51,817 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 7.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 5.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 279 SDslu, 775 SDs, 0 SdLazy, 444 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 22 PreInvPairs, 25 NumberOfFragments, 68 HoareAnnotationTreeSize, 22 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 179 ConstructedInterpolants, 26 QuantifiedInterpolants, 27208 SizeOfPredicates, 84 NumberOfNonLiveVariables, 704 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...