./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_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_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/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 b4428fa1091f4cda8c57d8e78988385def4dacf9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/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 b4428fa1091f4cda8c57d8e78988385def4dacf9 .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:19:33,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:19:33,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:19:33,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:19:33,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:19:33,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:19:33,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:19:33,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:19:33,835 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:19:33,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:19:33,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:19:33,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:19:33,837 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:19:33,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:19:33,839 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:19:33,842 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:19:33,842 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:19:33,844 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:19:33,845 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:19:33,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:19:33,855 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:19:33,856 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:19:33,858 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:19:33,858 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:19:33,858 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:19:33,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:19:33,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:19:33,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:19:33,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:19:33,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:19:33,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:19:33,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:19:33,867 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:19:33,867 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:19:33,868 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:19:33,868 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:19:33,869 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:19:33,882 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:19:33,883 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:19:33,883 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:19:33,883 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:19:33,883 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:19:33,884 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:19:33,884 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:19:33,884 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:19:33,884 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:19:33,884 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:19:33,884 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:19:33,885 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:19:33,885 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:19:33,885 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:19:33,885 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:19:33,885 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:19:33,886 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:19:33,886 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:19:33,886 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:19:33,888 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:19:33,888 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:19:33,888 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:19:33,888 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:19:33,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:19:33,888 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:19:33,889 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:19:33,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:19:33,890 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:19:33,890 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_3a791a2c-cc9e-4356-8273-97bc8852d28a/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 -> b4428fa1091f4cda8c57d8e78988385def4dacf9 [2018-10-26 22:19:33,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:19:33,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:19:33,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:19:33,930 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:19:33,930 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:19:33,931 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:33,971 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/2617654de/9f5e71935d6e48d7a65c011dc23d4314/FLAG6e610cf6a [2018-10-26 22:19:34,327 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:19:34,327 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:34,333 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/2617654de/9f5e71935d6e48d7a65c011dc23d4314/FLAG6e610cf6a [2018-10-26 22:19:34,344 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/2617654de/9f5e71935d6e48d7a65c011dc23d4314 [2018-10-26 22:19:34,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:19:34,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:19:34,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:19:34,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:19:34,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:19:34,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14956367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34, skipping insertion in model container [2018-10-26 22:19:34,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:19:34,383 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:19:34,518 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:19:34,520 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:19:34,540 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:19:34,556 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:19:34,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34 WrapperNode [2018-10-26 22:19:34,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:19:34,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:19:34,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:19:34,557 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:19:34,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:19:34,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:19:34,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:19:34,593 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:19:34,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... [2018-10-26 22:19:34,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:19:34,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:19:34,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:19:34,620 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:19:34,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:19:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:19:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:19:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:19:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:19:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-26 22:19:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-26 22:19:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-10-26 22:19:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-10-26 22:19:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:19:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:19:35,204 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:19:35,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:35 BoogieIcfgContainer [2018-10-26 22:19:35,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:19:35,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:19:35,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:19:35,207 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:19:35,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:19:34" (1/3) ... [2018-10-26 22:19:35,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a711ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:19:35, skipping insertion in model container [2018-10-26 22:19:35,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:34" (2/3) ... [2018-10-26 22:19:35,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a711ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:19:35, skipping insertion in model container [2018-10-26 22:19:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:35" (3/3) ... [2018-10-26 22:19:35,210 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:35,228 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:19:35,240 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:19:35,256 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:19:35,285 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:19:35,285 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:19:35,286 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:19:35,286 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:19:35,286 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:19:35,286 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:19:35,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:19:35,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:19:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-26 22:19:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 22:19:35,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:19:35,311 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:19:35,314 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:19:35,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:19:35,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1106139469, now seen corresponding path program 1 times [2018-10-26 22:19:35,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:19:35,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:19:35,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:19:35,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:19:35,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:19:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:19:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:19:35,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:19:35,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:19:35,438 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:19:35,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:19:35,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:19:35,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:19:35,456 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-10-26 22:19:35,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:19:35,476 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-10-26 22:19:35,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:19:35,477 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-10-26 22:19:35,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:19:35,485 INFO L225 Difference]: With dead ends: 66 [2018-10-26 22:19:35,486 INFO L226 Difference]: Without dead ends: 33 [2018-10-26 22:19:35,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:19:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-26 22:19:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-26 22:19:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 22:19:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-10-26 22:19:35,521 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2018-10-26 22:19:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:19:35,521 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-10-26 22:19:35,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:19:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-10-26 22:19:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 22:19:35,522 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:19:35,522 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] [2018-10-26 22:19:35,522 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:19:35,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:19:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash 450796287, now seen corresponding path program 1 times [2018-10-26 22:19:35,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:19:35,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:19:35,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:19:35,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:19:35,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:19:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:19:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:19:35,669 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:19:35,683 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,684 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,684 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,685 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,685 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,685 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,685 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,686 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,686 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,686 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,686 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,686 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,687 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,687 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,687 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,687 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,688 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,688 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,688 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,688 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,688 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,689 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,689 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,689 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,689 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,690 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,690 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,690 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,690 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,691 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,691 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,691 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,691 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,691 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,692 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,692 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,692 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,692 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:19:35,693 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:19:35,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:19:35 BoogieIcfgContainer [2018-10-26 22:19:35,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:19:35,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:19:35,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:19:35,707 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:19:35,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:35" (3/4) ... [2018-10-26 22:19:35,711 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:19:35,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:19:35,712 INFO L168 Benchmark]: Toolchain (without parser) took 1364.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -134.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,713 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:19:35,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.32 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,715 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,715 INFO L168 Benchmark]: RCFGBuilder took 584.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,716 INFO L168 Benchmark]: TraceAbstraction took 501.86 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:35,717 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:19:35,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.32 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 584.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 501.86 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L74] float x = 1.0f / 0.0f; [L75] CALL, EXPR round_float(x) [L12] __uint32_t w; [L14] int exponent_less_127; [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] (w) = gf_u.word [L19] RET (w) = gf_u.word [L20] COND FALSE !(0) [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; [L75] EXPR round_float(x) VAL [round_float(x)=6442450946, x=6442450952] [L75] float res = round_float(x); [L78] CALL, EXPR isinf_float(res) [L56] __int32_t ix; [L58] CALL ieee_float_shape_type gf_u; [L58] RET ieee_float_shape_type gf_u; [L59] CALL gf_u.value = (x) [L59] RET gf_u.value = (x) [L60] CALL, EXPR gf_u.word [L60] RET, EXPR gf_u.word [L60] (ix) = gf_u.word [L60] RET (ix) = gf_u.word [L61] COND FALSE !(0) [L62] ix &= 0x7fffffff [L63] RET return ((ix) == 0x7f800000L); [L78] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450946, x=6442450952] [L78] COND TRUE !isinf_float(res) [L79] __VERIFIER_error() VAL [res=6442450946, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:19:37,495 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:19:37,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:19:37,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:19:37,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:19:37,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:19:37,509 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:19:37,511 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:19:37,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:19:37,512 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:19:37,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:19:37,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:19:37,514 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:19:37,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:19:37,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:19:37,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:19:37,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:19:37,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:19:37,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:19:37,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:19:37,522 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:19:37,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:19:37,524 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:19:37,524 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:19:37,524 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:19:37,525 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:19:37,526 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:19:37,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:19:37,527 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:19:37,527 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:19:37,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:19:37,528 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:19:37,528 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:19:37,528 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:19:37,529 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:19:37,530 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:19:37,530 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:19:37,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:19:37,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:19:37,541 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:19:37,542 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:19:37,542 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:19:37,542 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:19:37,542 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:19:37,542 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:19:37,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:19:37,543 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:19:37,544 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:19:37,544 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:19:37,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:19:37,545 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:19:37,546 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:19:37,546 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:19:37,546 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_3a791a2c-cc9e-4356-8273-97bc8852d28a/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 -> b4428fa1091f4cda8c57d8e78988385def4dacf9 [2018-10-26 22:19:37,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:19:37,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:19:37,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:19:37,591 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:19:37,591 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:19:37,592 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:37,631 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/ed2030d4d/1c2aa8d2fc41484fb9ee60d40babefcc/FLAG80a927fcc [2018-10-26 22:19:38,008 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:19:38,008 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:38,014 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/ed2030d4d/1c2aa8d2fc41484fb9ee60d40babefcc/FLAG80a927fcc [2018-10-26 22:19:38,025 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/data/ed2030d4d/1c2aa8d2fc41484fb9ee60d40babefcc [2018-10-26 22:19:38,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:19:38,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:19:38,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:19:38,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:19:38,033 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:19:38,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5356465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38, skipping insertion in model container [2018-10-26 22:19:38,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:19:38,060 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:19:38,198 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:19:38,202 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:19:38,229 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:19:38,251 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:19:38,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38 WrapperNode [2018-10-26 22:19:38,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:19:38,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:19:38,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:19:38,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:19:38,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:19:38,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:19:38,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:19:38,292 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:19:38,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... [2018-10-26 22:19:38,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:19:38,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:19:38,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:19:38,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:19:38,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:19:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:19:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:19:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:19:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:19:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-26 22:19:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-26 22:19:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-10-26 22:19:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-10-26 22:19:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:19:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:19:38,743 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:19:38,848 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:19:38,960 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:19:38,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:38 BoogieIcfgContainer [2018-10-26 22:19:38,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:19:38,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:19:38,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:19:38,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:19:38,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:19:38" (1/3) ... [2018-10-26 22:19:38,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f875927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:19:38, skipping insertion in model container [2018-10-26 22:19:38,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:19:38" (2/3) ... [2018-10-26 22:19:38,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f875927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:19:38, skipping insertion in model container [2018-10-26 22:19:38,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:38" (3/3) ... [2018-10-26 22:19:38,969 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c_true-unreach-call.c [2018-10-26 22:19:38,979 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:19:38,985 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:19:38,997 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:19:39,019 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:19:39,020 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:19:39,020 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:19:39,020 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:19:39,020 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:19:39,020 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:19:39,020 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:19:39,020 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:19:39,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:19:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-26 22:19:39,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 22:19:39,038 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:19:39,039 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:19:39,041 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:19:39,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:19:39,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1818379075, now seen corresponding path program 1 times [2018-10-26 22:19:39,051 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:19:39,051 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/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 [2018-10-26 22:19:39,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:19:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:19:39,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:19:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:19:39,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:19:39,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:19:39,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:19:39,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:19:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:19:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:19:39,167 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-10-26 22:19:39,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:19:39,183 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-10-26 22:19:39,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:19:39,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-10-26 22:19:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:19:39,191 INFO L225 Difference]: With dead ends: 64 [2018-10-26 22:19:39,192 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 22:19:39,194 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:19:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 22:19:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-26 22:19:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 22:19:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-10-26 22:19:39,227 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2018-10-26 22:19:39,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:19:39,227 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-10-26 22:19:39,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:19:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-10-26 22:19:39,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:19:39,228 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:19:39,228 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:19:39,229 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:19:39,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:19:39,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1330979923, now seen corresponding path program 1 times [2018-10-26 22:19:39,230 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:19:39,230 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:19:39,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 22:19:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:19:39,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:19:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:19:40,239 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:19:40,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:19:40,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-26 22:19:40,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 22:19:40,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 22:19:40,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:19:40,253 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-10-26 22:19:40,865 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-26 22:19:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:19:42,010 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-10-26 22:19:42,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 22:19:42,011 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-10-26 22:19:42,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:19:42,014 INFO L225 Difference]: With dead ends: 41 [2018-10-26 22:19:42,014 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:19:42,015 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-10-26 22:19:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:19:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-10-26 22:19:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 22:19:42,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-10-26 22:19:42,027 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2018-10-26 22:19:42,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:19:42,027 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-10-26 22:19:42,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-26 22:19:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-10-26 22:19:42,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:19:42,029 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:19:42,029 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:19:42,029 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:19:42,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:19:42,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1624382930, now seen corresponding path program 1 times [2018-10-26 22:19:42,032 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:19:42,032 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:19:42,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 22:19:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:19:42,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:19:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:19:42,269 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:19:42,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:19:42,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:19:42,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:19:42,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:19:42,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:19:42,293 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2018-10-26 22:19:42,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:19:42,969 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-10-26 22:19:42,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:19:42,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-26 22:19:42,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:19:42,970 INFO L225 Difference]: With dead ends: 34 [2018-10-26 22:19:42,970 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:19:42,971 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:19:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:19:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:19:42,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:19:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:19:42,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-10-26 22:19:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:19:42,972 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:19:42,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:19:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:19:42,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:19:42,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:19:43,148 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:19:43,149 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:19:43,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:19:43,149 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-10-26 22:19:43,149 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-10-26 22:19:43,149 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-10-26 22:19:43,149 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-10-26 22:19:43,149 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-10-26 22:19:43,149 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-10-26 22:19:43,150 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:19:43,151 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:19:43,151 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-26 22:19:43,152 INFO L421 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-10-26 22:19:43,152 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 66 84) the Hoare annotation is: true [2018-10-26 22:19:43,152 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 78 81) no Hoare annotation was computed. [2018-10-26 22:19:43,152 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 66 84) no Hoare annotation was computed. [2018-10-26 22:19:43,152 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-10-26 22:19:43,152 INFO L421 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-10-26 22:19:43,152 INFO L425 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-10-26 22:19:43,153 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 66 84) no Hoare annotation was computed. [2018-10-26 22:19:43,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:19:43 BoogieIcfgContainer [2018-10-26 22:19:43,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:19:43,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:19:43,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:19:43,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:19:43,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:19:38" (3/4) ... [2018-10-26 22:19:43,166 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:19:43,171 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:19:43,171 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-10-26 22:19:43,171 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-10-26 22:19:43,172 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:19:43,177 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 22:19:43,178 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 22:19:43,178 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 22:19:43,200 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-10-26 22:19:43,200 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 22:19:43,230 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3a791a2c-cc9e-4356-8273-97bc8852d28a/bin-2019/utaipan/witness.graphml [2018-10-26 22:19:43,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:19:43,231 INFO L168 Benchmark]: Toolchain (without parser) took 5202.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -83.8 MB). Peak memory consumption was 111.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:43,232 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:19:43,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:43,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:19:43,233 INFO L168 Benchmark]: Boogie Preprocessor took 38.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:19:43,233 INFO L168 Benchmark]: RCFGBuilder took 622.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -226.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:43,234 INFO L168 Benchmark]: TraceAbstraction took 4200.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:43,234 INFO L168 Benchmark]: Witness Printer took 67.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-26 22:19:43,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.62 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 622.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -226.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4200.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. * Witness Printer took 67.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 53 SDslu, 256 SDs, 0 SdLazy, 137 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 6 QuantifiedInterpolants, 8116 SizeOfPredicates, 19 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...