./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e3b677629e69b083ff740542124e952dcae7545 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e3b677629e69b083ff740542124e952dcae7545 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:29:01,198 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:29:01,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:29:01,207 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:29:01,207 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:29:01,208 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:29:01,209 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:29:01,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:29:01,211 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:29:01,212 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:29:01,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:29:01,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:29:01,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:29:01,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:29:01,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:29:01,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:29:01,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:29:01,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:29:01,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:29:01,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:29:01,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:29:01,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:29:01,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:29:01,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:29:01,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:29:01,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:29:01,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:29:01,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:29:01,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:29:01,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:29:01,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:29:01,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:29:01,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:29:01,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:29:01,227 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:29:01,228 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:29:01,228 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 03:29:01,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:29:01,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:29:01,236 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:29:01,236 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 03:29:01,236 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 03:29:01,237 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:29:01,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:29:01,237 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:29:01,237 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:29:01,238 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:29:01,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:29:01,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:29:01,239 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:29:01,239 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:29:01,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:29:01,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:29:01,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:29:01,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 03:29:01,242 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_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e3b677629e69b083ff740542124e952dcae7545 [2018-11-10 03:29:01,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:29:01,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:29:01,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:29:01,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:29:01,278 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:29:01,279 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:01,314 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/7dc0dc03c/76f90e6623034429adaefc7b5e8cd10f/FLAG36a03c6fe [2018-11-10 03:29:01,614 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:29:01,614 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:01,618 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/7dc0dc03c/76f90e6623034429adaefc7b5e8cd10f/FLAG36a03c6fe [2018-11-10 03:29:01,627 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/7dc0dc03c/76f90e6623034429adaefc7b5e8cd10f [2018-11-10 03:29:01,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:29:01,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:29:01,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:29:01,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:29:01,633 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:29:01,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f702439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01, skipping insertion in model container [2018-11-10 03:29:01,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:29:01,655 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:29:01,762 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:29:01,765 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:29:01,782 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:29:01,794 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:29:01,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01 WrapperNode [2018-11-10 03:29:01,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:29:01,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:29:01,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:29:01,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:29:01,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:29:01,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:29:01,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:29:01,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:29:01,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... [2018-11-10 03:29:01,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:29:01,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:29:01,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:29:01,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:29:01,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:29:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:29:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:29:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 03:29:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 03:29:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:29:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:29:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:29:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:29:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 03:29:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 03:29:02,196 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:29:02,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:02 BoogieIcfgContainer [2018-11-10 03:29:02,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:29:02,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:29:02,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:29:02,201 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:29:02,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:29:01" (1/3) ... [2018-11-10 03:29:02,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e9fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:29:02, skipping insertion in model container [2018-11-10 03:29:02,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:01" (2/3) ... [2018-11-10 03:29:02,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e9fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:29:02, skipping insertion in model container [2018-11-10 03:29:02,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:02" (3/3) ... [2018-11-10 03:29:02,204 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:02,213 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:29:02,220 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:29:02,234 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:29:02,255 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:29:02,256 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:29:02,256 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:29:02,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:29:02,256 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:29:02,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:29:02,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:29:02,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:29:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 03:29:02,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 03:29:02,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:02,271 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:29:02,273 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:02,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-11-10 03:29:02,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:29:02,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:29:02,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:02,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:29:02,318 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:29:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:02,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:02,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 03:29:02,386 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 03:29:02,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 03:29:02,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 03:29:02,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:29:02,403 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 03:29:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:02,420 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-10 03:29:02,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 03:29:02,421 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 03:29:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:02,427 INFO L225 Difference]: With dead ends: 78 [2018-11-10 03:29:02,427 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 03:29:02,429 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:29:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 03:29:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-10 03:29:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 03:29:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-10 03:29:02,451 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-10 03:29:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:02,452 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 03:29:02,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 03:29:02,452 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-10 03:29:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 03:29:02,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:02,453 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:29:02,453 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:02,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:02,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-11-10 03:29:02,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 03:29:02,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:29:02,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:02,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:29:02,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 03:29:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:29:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:29:02,527 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 03:29:02,537 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,537 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,538 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,538 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,538 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,538 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,538 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,539 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,540 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,540 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,540 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,540 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,540 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:29:02,541 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 03:29:02,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:29:02 BoogieIcfgContainer [2018-11-10 03:29:02,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:29:02,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:29:02,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:29:02,552 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:29:02,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:02" (3/4) ... [2018-11-10 03:29:02,555 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:29:02,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:29:02,556 INFO L168 Benchmark]: Toolchain (without parser) took 925.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,557 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:02,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,558 INFO L168 Benchmark]: Boogie Preprocessor took 63.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,559 INFO L168 Benchmark]: RCFGBuilder took 302.53 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,559 INFO L168 Benchmark]: TraceAbstraction took 353.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:02,559 INFO L168 Benchmark]: Witness Printer took 3.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:02,562 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 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 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 35.57 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -233.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 302.53 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 353.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.45 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.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 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of bitwiseAnd at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=2147483525, huge_ceil=1000000000000000000000000000000] [L76] float x = 0.0f; VAL [huge_ceil=1000000000000000000000000000000, x=0] [L77] CALL, EXPR ceil_float(x) VAL [huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=2147483522, huge_ceil=1000000000000000000000000000000, x=0] [L77] float res = ceil_float(x); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000, res=2147483522, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=2147483522, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s 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 [2018-11-10 03:29:04,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:29:04,029 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:29:04,036 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:29:04,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:29:04,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:29:04,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:29:04,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:29:04,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:29:04,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:29:04,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:29:04,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:29:04,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:29:04,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:29:04,043 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:29:04,043 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:29:04,044 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:29:04,045 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:29:04,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:29:04,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:29:04,048 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:29:04,049 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:29:04,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:29:04,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:29:04,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:29:04,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:29:04,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:29:04,053 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:29:04,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:29:04,054 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:29:04,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:29:04,055 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:29:04,055 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:29:04,055 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:29:04,056 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:29:04,056 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:29:04,057 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 03:29:04,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:29:04,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:29:04,068 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:29:04,068 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:29:04,068 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:29:04,068 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:29:04,068 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:29:04,068 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:29:04,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:29:04,069 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:29:04,069 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:29:04,069 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:29:04,069 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:29:04,069 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:29:04,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:29:04,070 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:29:04,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:29:04,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:29:04,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:29:04,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:29:04,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:29:04,073 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:29:04,073 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 03:29:04,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:29:04,073 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 03:29:04,073 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 03:29:04,073 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_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e3b677629e69b083ff740542124e952dcae7545 [2018-11-10 03:29:04,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:29:04,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:29:04,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:29:04,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:29:04,113 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:29:04,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:04,149 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/4d3bf5065/d411a871b4844fbd87428fbb425e1a1d/FLAGe02d7d85a [2018-11-10 03:29:04,545 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:29:04,545 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/sv-benchmarks/c/float-newlib/float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:04,551 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/4d3bf5065/d411a871b4844fbd87428fbb425e1a1d/FLAGe02d7d85a [2018-11-10 03:29:04,560 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/data/4d3bf5065/d411a871b4844fbd87428fbb425e1a1d [2018-11-10 03:29:04,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:29:04,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:29:04,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:29:04,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:29:04,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:29:04,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04, skipping insertion in model container [2018-11-10 03:29:04,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:29:04,588 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:29:04,702 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:29:04,706 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:29:04,726 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:29:04,743 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:29:04,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04 WrapperNode [2018-11-10 03:29:04,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:29:04,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:29:04,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:29:04,745 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:29:04,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:29:04,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:29:04,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:29:04,777 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:29:04,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... [2018-11-10 03:29:04,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:29:04,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:29:04,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:29:04,805 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:29:04,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:29:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:29:04,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:29:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 03:29:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 03:29:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:29:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:29:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:29:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:29:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 03:29:04,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 03:29:05,236 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 03:29:05,387 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 03:29:05,394 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:29:05,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:05 BoogieIcfgContainer [2018-11-10 03:29:05,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:29:05,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:29:05,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:29:05,397 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:29:05,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:29:04" (1/3) ... [2018-11-10 03:29:05,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37734973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:29:05, skipping insertion in model container [2018-11-10 03:29:05,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:29:04" (2/3) ... [2018-11-10 03:29:05,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37734973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:29:05, skipping insertion in model container [2018-11-10 03:29:05,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:05" (3/3) ... [2018-11-10 03:29:05,400 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b_true-unreach-call.c [2018-11-10 03:29:05,406 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:29:05,411 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:29:05,420 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:29:05,439 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:29:05,439 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:29:05,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:29:05,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:29:05,440 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:29:05,440 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:29:05,440 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:29:05,440 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:29:05,440 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:29:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 03:29:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 03:29:05,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:05,458 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:29:05,460 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:05,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:05,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-11-10 03:29:05,467 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:05,467 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 03:29:05,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:05,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:05,534 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:05,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:05,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 03:29:05,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 03:29:05,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 03:29:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 03:29:05,559 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 03:29:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:05,575 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-10 03:29:05,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 03:29:05,576 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 03:29:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:05,584 INFO L225 Difference]: With dead ends: 78 [2018-11-10 03:29:05,584 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 03:29:05,587 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 [2018-11-10 03:29:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 03:29:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-10 03:29:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 03:29:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-10 03:29:05,610 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-10 03:29:05,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:05,610 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 03:29:05,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 03:29:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-10 03:29:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 03:29:05,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:05,611 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:29:05,611 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:05,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:05,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-11-10 03:29:05,613 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:05,613 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 03:29:05,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:05,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:05,802 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:05,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:05,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 03:29:05,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 03:29:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 03:29:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 03:29:05,824 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-10 03:29:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:06,729 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-10 03:29:06,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 03:29:06,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 03:29:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:06,732 INFO L225 Difference]: With dead ends: 60 [2018-11-10 03:29:06,732 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 03:29:06,733 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 03:29:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 03:29:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-10 03:29:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 03:29:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-10 03:29:06,738 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-10 03:29:06,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:06,738 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-10 03:29:06,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 03:29:06,738 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-10 03:29:06,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 03:29:06,739 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:06,739 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] [2018-11-10 03:29:06,740 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:06,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:06,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1136318903, now seen corresponding path program 1 times [2018-11-10 03:29:06,740 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:06,741 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 03:29:06,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:06,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:06,856 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:06,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:06,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 03:29:06,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 03:29:06,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 03:29:06,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 03:29:06,863 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-10 03:29:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:07,662 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-10 03:29:07,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 03:29:07,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 03:29:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:07,663 INFO L225 Difference]: With dead ends: 67 [2018-11-10 03:29:07,663 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 03:29:07,664 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-10 03:29:07,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 03:29:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-10 03:29:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 03:29:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-10 03:29:07,667 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-10 03:29:07,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:07,667 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-10 03:29:07,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 03:29:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-10 03:29:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 03:29:07,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:07,668 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] [2018-11-10 03:29:07,669 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:07,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:07,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1197614518, now seen corresponding path program 1 times [2018-11-10 03:29:07,669 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:07,669 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/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 [2018-11-10 03:29:07,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:07,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:08,706 WARN L179 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-10 03:29:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:08,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:08,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:08,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:29:08,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:29:08,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:29:08,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:29:08,724 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-10 03:29:09,729 WARN L179 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-10 03:29:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:10,168 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-10 03:29:10,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 03:29:10,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 03:29:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:10,172 INFO L225 Difference]: With dead ends: 52 [2018-11-10 03:29:10,173 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 03:29:10,173 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 03:29:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 03:29:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 03:29:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 03:29:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-10 03:29:10,176 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-10 03:29:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:10,176 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-10 03:29:10,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:29:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-10 03:29:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 03:29:10,176 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:10,176 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] [2018-11-10 03:29:10,177 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:10,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:10,177 INFO L82 PathProgramCache]: Analyzing trace with hash -913385180, now seen corresponding path program 1 times [2018-11-10 03:29:10,177 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:10,177 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/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 [2018-11-10 03:29:10,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:10,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:10,272 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:10,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:10,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:29:10,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:29:10,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:29:10,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:29:10,285 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-11-10 03:29:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:10,535 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-11-10 03:29:10,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 03:29:10,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-10 03:29:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:10,537 INFO L225 Difference]: With dead ends: 57 [2018-11-10 03:29:10,537 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 03:29:10,537 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:29:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 03:29:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-10 03:29:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 03:29:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-11-10 03:29:10,541 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-11-10 03:29:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:10,542 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-11-10 03:29:10,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:29:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-10 03:29:10,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 03:29:10,542 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:10,542 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] [2018-11-10 03:29:10,542 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:10,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash 198066784, now seen corresponding path program 1 times [2018-11-10 03:29:10,543 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:10,543 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/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 [2018-11-10 03:29:10,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:10,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:10,661 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:10,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:10,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 03:29:10,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 03:29:10,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 03:29:10,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 03:29:10,670 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-11-10 03:29:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:10,940 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-11-10 03:29:10,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 03:29:10,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-10 03:29:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:10,941 INFO L225 Difference]: With dead ends: 52 [2018-11-10 03:29:10,942 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 03:29:10,942 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 [2018-11-10 03:29:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 03:29:10,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 03:29:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 03:29:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-10 03:29:10,945 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-11-10 03:29:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:10,945 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-10 03:29:10,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 03:29:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-10 03:29:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 03:29:10,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:10,946 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] [2018-11-10 03:29:10,946 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:10,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:10,946 INFO L82 PathProgramCache]: Analyzing trace with hash -194960226, now seen corresponding path program 1 times [2018-11-10 03:29:10,946 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:10,946 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/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 [2018-11-10 03:29:10,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:11,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:11,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:11,064 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:11,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:11,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 03:29:11,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 03:29:11,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 03:29:11,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:29:11,072 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 8 states. [2018-11-10 03:29:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:11,276 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-11-10 03:29:11,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 03:29:11,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-10 03:29:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:11,277 INFO L225 Difference]: With dead ends: 37 [2018-11-10 03:29:11,277 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 03:29:11,277 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 [2018-11-10 03:29:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 03:29:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 03:29:11,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 03:29:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-11-10 03:29:11,280 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-11-10 03:29:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:11,280 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-11-10 03:29:11,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 03:29:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-11-10 03:29:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 03:29:11,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:29:11,281 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] [2018-11-10 03:29:11,281 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:29:11,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:29:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1188317242, now seen corresponding path program 1 times [2018-11-10 03:29:11,282 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:29:11,282 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/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 [2018-11-10 03:29:11,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:29:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:29:11,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:29:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:29:11,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 03:29:11,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:29:11,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-10 03:29:11,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 03:29:11,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 03:29:11,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-10 03:29:11,521 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 13 states. [2018-11-10 03:29:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:29:12,203 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-11-10 03:29:12,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 03:29:12,203 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-11-10 03:29:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:29:12,203 INFO L225 Difference]: With dead ends: 34 [2018-11-10 03:29:12,203 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 03:29:12,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2018-11-10 03:29:12,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 03:29:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 03:29:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 03:29:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 03:29:12,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-10 03:29:12,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:29:12,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:29:12,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 03:29:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:29:12,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:29:12,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 03:29:12,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:29:12,355 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:29:12,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:29:12,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:29:12,355 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-11-10 03:29:12,355 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:29:12,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:29:12,355 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-11-10 03:29:12,355 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L421 ceAbstractionStarter]: At program point L80-1(line 80) the Hoare annotation is: (or (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0)) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-10 03:29:12,356 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |ceil_float_#in~x| ceil_float_~x)) [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-10 03:29:12,357 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-10 03:29:12,357 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-10 03:29:12,363 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,363 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,366 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,366 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,366 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,366 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,367 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,367 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:29:12 BoogieIcfgContainer [2018-11-10 03:29:12,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:29:12,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:29:12,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:29:12,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:29:12,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:29:05" (3/4) ... [2018-11-10 03:29:12,371 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 03:29:12,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 03:29:12,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 03:29:12,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-10 03:29:12,376 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 03:29:12,380 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 03:29:12,380 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 03:29:12,380 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 03:29:12,397 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x [2018-11-10 03:29:12,397 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) [2018-11-10 03:29:12,419 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_00fc43a0-a0c5-4c83-aa95-3ce0851c796e/bin-2019/utaipan/witness.graphml [2018-11-10 03:29:12,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:29:12,420 INFO L168 Benchmark]: Toolchain (without parser) took 7857.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -206.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:12,421 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:12,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:12,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:12,421 INFO L168 Benchmark]: Boogie Preprocessor took 27.25 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:12,421 INFO L168 Benchmark]: RCFGBuilder took 590.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:12,422 INFO L168 Benchmark]: TraceAbstraction took 6972.51 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:29:12,422 INFO L168 Benchmark]: Witness Printer took 51.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:29:12,423 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.50 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.25 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 590.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6972.51 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 51.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 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: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-11-10 03:29:12,426 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,426 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,427 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,427 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) - InvariantResult [Line: 16]: Loop Invariant [2018-11-10 03:29:12,427 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,427 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,428 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-11-10 03:29:12,428 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 6.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 279 SDslu, 775 SDs, 0 SdLazy, 444 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 22 PreInvPairs, 25 NumberOfFragments, 65 HoareAnnotationTreeSize, 22 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 179 ConstructedInterpolants, 26 QuantifiedInterpolants, 26926 SizeOfPredicates, 74 NumberOfNonLiveVariables, 704 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...