./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_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_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ............................................................................................................................................................................................................................................................................................................................................................................................... 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_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:11:31,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:11:31,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:11:31,201 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:11:31,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:11:31,202 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:11:31,203 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:11:31,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:11:31,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:11:31,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:11:31,208 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:11:31,208 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:11:31,209 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:11:31,210 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:11:31,211 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:11:31,212 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:11:31,212 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:11:31,214 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:11:31,215 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:11:31,217 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:11:31,218 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:11:31,219 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:11:31,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:11:31,221 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:11:31,221 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:11:31,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:11:31,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:11:31,223 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:11:31,224 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:11:31,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:11:31,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:11:31,226 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:11:31,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:11:31,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:11:31,227 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:11:31,228 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:11:31,228 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:11:31,240 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:11:31,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:11:31,241 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:11:31,241 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:11:31,241 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:11:31,241 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:11:31,242 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:11:31,242 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:11:31,242 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:11:31,242 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:11:31,242 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:11:31,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:11:31,243 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:11:31,244 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:11:31,244 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:11:31,244 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:11:31,244 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:11:31,244 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:11:31,244 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:11:31,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:11:31,247 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:11:31,247 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:11:31,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:11:31,248 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:11:31,248 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_d5a823f1-296a-446d-973d-a271f0b8347a/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-10-26 23:11:31,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:11:31,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:11:31,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:11:31,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:11:31,287 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:11:31,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:31,338 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/39b7fce3a/bd029cedc85842d8a2e9f2418c7a474a/FLAG48f557d25 [2018-10-26 23:11:31,722 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:11:31,722 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:31,728 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/39b7fce3a/bd029cedc85842d8a2e9f2418c7a474a/FLAG48f557d25 [2018-10-26 23:11:31,738 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/39b7fce3a/bd029cedc85842d8a2e9f2418c7a474a [2018-10-26 23:11:31,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:11:31,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:11:31,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:11:31,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:11:31,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:11:31,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbe7040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31, skipping insertion in model container [2018-10-26 23:11:31,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:11:31,778 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:11:31,907 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:11:31,910 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:11:31,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:11:31,951 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:11:31,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31 WrapperNode [2018-10-26 23:11:31,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:11:31,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:11:31,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:11:31,953 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:11:31,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:11:31,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:11:31,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:11:31,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:11:31,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:31,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:32,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:32,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:32,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... [2018-10-26 23:11:32,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:11:32,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:11:32,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:11:32,009 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:11:32,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/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 23:11:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:11:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:11:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 23:11:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 23:11:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:11:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:11:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-26 23:11:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-26 23:11:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:11:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:11:32,640 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:11:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:32 BoogieIcfgContainer [2018-10-26 23:11:32,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:11:32,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:11:32,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:11:32,645 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:11:32,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:11:31" (1/3) ... [2018-10-26 23:11:32,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@956fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:11:32, skipping insertion in model container [2018-10-26 23:11:32,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:31" (2/3) ... [2018-10-26 23:11:32,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@956fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:11:32, skipping insertion in model container [2018-10-26 23:11:32,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:32" (3/3) ... [2018-10-26 23:11:32,648 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:32,656 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:11:32,666 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:11:32,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:11:32,708 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:11:32,708 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:11:32,708 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:11:32,709 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:11:32,709 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:11:32,709 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:11:32,709 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:11:32,709 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:11:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-10-26 23:11:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:11:32,729 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:32,730 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] [2018-10-26 23:11:32,732 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:32,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 330849232, now seen corresponding path program 1 times [2018-10-26 23:11:32,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:11:32,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:11:32,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:11:32,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:11:32,784 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:11:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:11:32,855 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 23:11:32,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:11:32,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:11:32,857 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:11:32,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:11:32,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:11:32,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:11:32,875 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-10-26 23:11:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:11:32,893 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-10-26 23:11:32,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:11:32,895 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-10-26 23:11:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:11:32,904 INFO L225 Difference]: With dead ends: 70 [2018-10-26 23:11:32,905 INFO L226 Difference]: Without dead ends: 35 [2018-10-26 23:11:32,908 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 23:11:32,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-26 23:11:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-10-26 23:11:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-26 23:11:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-10-26 23:11:32,946 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-10-26 23:11:32,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:11:32,946 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-10-26 23:11:32,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:11:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-10-26 23:11:32,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 23:11:32,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:32,948 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 23:11:32,949 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:32,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1365368106, now seen corresponding path program 1 times [2018-10-26 23:11:32,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:11:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:11:32,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:11:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:11:32,951 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:11:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:11:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:11:33,061 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:11:33,073 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,074 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,074 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,074 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,075 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,075 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,075 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,075 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,076 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,076 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,076 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,077 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,077 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,077 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,078 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,078 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,078 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,078 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,079 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,079 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,079 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,079 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:11:33,080 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,080 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:11:33,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:11:33 BoogieIcfgContainer [2018-10-26 23:11:33,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:11:33,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:11:33,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:11:33,096 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:11:33,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:32" (3/4) ... [2018-10-26 23:11:33,100 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:11:33,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:11:33,101 INFO L168 Benchmark]: Toolchain (without parser) took 1360.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,103 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:11:33,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,104 INFO L168 Benchmark]: Boogie Preprocessor took 23.70 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,105 INFO L168 Benchmark]: RCFGBuilder took 631.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,105 INFO L168 Benchmark]: TraceAbstraction took 453.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:33,106 INFO L168 Benchmark]: Witness Printer took 4.56 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 23:11:33,109 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.70 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 631.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 453.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L18] CALL ieee_float_shape_type gf_u; [L18] RET ieee_float_shape_type gf_u; [L19] CALL gf_u.value = (x) [L19] RET gf_u.value = (x) [L20] CALL, EXPR gf_u.word [L20] RET, EXPR gf_u.word [L20] (i0) = gf_u.word [L20] RET (i0) = gf_u.word [L21] COND FALSE !(0) VAL [huge_floor=1000000000000000000000000000000] [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L24] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] RET return x + x; VAL [huge_floor=1000000000000000000000000000000] [L67] EXPR floor_float(x) VAL [floor_float(x)=6442450948, huge_floor=1000000000000000000000000000000, x=6442450950] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, huge_floor=1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=6442450948, \result=0, huge_floor=1000000000000000000000000000000, x=6442450948] [L70] EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=6442450948, x=6442450950] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450948, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 23:11:35,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:11:35,011 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:11:35,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:11:35,020 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:11:35,021 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:11:35,022 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:11:35,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:11:35,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:11:35,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:11:35,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:11:35,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:11:35,027 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:11:35,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:11:35,029 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:11:35,030 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:11:35,030 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:11:35,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:11:35,033 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:11:35,034 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:11:35,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:11:35,036 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:11:35,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:11:35,039 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:11:35,039 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:11:35,040 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:11:35,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:11:35,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:11:35,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:11:35,043 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:11:35,043 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:11:35,044 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:11:35,044 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:11:35,044 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:11:35,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:11:35,046 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:11:35,047 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 23:11:35,058 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:11:35,059 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:11:35,059 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:11:35,059 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:11:35,060 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:11:35,060 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:11:35,060 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:11:35,060 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:11:35,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:11:35,061 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:11:35,062 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:11:35,063 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:11:35,063 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:11:35,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:11:35,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:11:35,064 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:11:35,064 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:11:35,064 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 23:11:35,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:11:35,066 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:11:35,066 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:11:35,067 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_d5a823f1-296a-446d-973d-a271f0b8347a/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-10-26 23:11:35,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:11:35,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:11:35,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:11:35,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:11:35,113 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:11:35,114 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:35,161 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/aa26edf6f/ffb00f465d274c64b310d788e5f7c90b/FLAGa20342bf7 [2018-10-26 23:11:35,545 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:11:35,545 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:35,550 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/aa26edf6f/ffb00f465d274c64b310d788e5f7c90b/FLAGa20342bf7 [2018-10-26 23:11:35,561 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/data/aa26edf6f/ffb00f465d274c64b310d788e5f7c90b [2018-10-26 23:11:35,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:11:35,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:11:35,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:11:35,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:11:35,570 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:11:35,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,574 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 11:11:35, skipping insertion in model container [2018-10-26 23:11:35,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:11:35,604 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:11:35,750 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:11:35,754 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:11:35,786 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:11:35,812 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:11:35,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35 WrapperNode [2018-10-26 23:11:35,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:11:35,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:11:35,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:11:35,814 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:11:35,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:11:35,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:11:35,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:11:35,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:11:35,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... [2018-10-26 23:11:35,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:11:35,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:11:35,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:11:35,902 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:11:35,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/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 23:11:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:11:36,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:11:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-26 23:11:36,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-26 23:11:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:11:36,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:11:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-26 23:11:36,049 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-26 23:11:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:11:36,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:11:36,273 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:11:36,860 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:11:36,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:36 BoogieIcfgContainer [2018-10-26 23:11:36,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:11:36,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:11:36,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:11:36,864 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:11:36,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:11:35" (1/3) ... [2018-10-26 23:11:36,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8f0066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:11:36, skipping insertion in model container [2018-10-26 23:11:36,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:11:35" (2/3) ... [2018-10-26 23:11:36,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8f0066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:11:36, skipping insertion in model container [2018-10-26 23:11:36,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:36" (3/3) ... [2018-10-26 23:11:36,867 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-10-26 23:11:36,876 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:11:36,883 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:11:36,895 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:11:36,920 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:11:36,921 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:11:36,921 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:11:36,921 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:11:36,921 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:11:36,921 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:11:36,922 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:11:36,922 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:11:36,922 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:11:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-26 23:11:36,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:11:36,942 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:36,943 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] [2018-10-26 23:11:36,945 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:36,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:36,951 INFO L82 PathProgramCache]: Analyzing trace with hash -510771927, now seen corresponding path program 1 times [2018-10-26 23:11:36,954 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:11:36,955 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:11:36,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 23:11:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:11:37,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:11:37,047 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 23:11:37,047 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:11:37,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:11:37,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:11:37,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:11:37,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:11:37,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:11:37,071 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-10-26 23:11:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:11:37,087 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-10-26 23:11:37,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:11:37,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-26 23:11:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:11:37,098 INFO L225 Difference]: With dead ends: 68 [2018-10-26 23:11:37,098 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 23:11:37,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 23:11:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 23:11:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 23:11:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 23:11:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-10-26 23:11:37,134 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-10-26 23:11:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:11:37,135 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-10-26 23:11:37,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:11:37,135 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-10-26 23:11:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:11:37,136 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:37,136 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] [2018-10-26 23:11:37,136 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:37,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:37,137 INFO L82 PathProgramCache]: Analyzing trace with hash -196296473, now seen corresponding path program 1 times [2018-10-26 23:11:37,137 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:11:37,137 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:11:37,147 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 23:11:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:11:37,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:11:37,876 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 23:11:37,876 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:11:37,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:11:37,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 23:11:37,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 23:11:37,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 23:11:37,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:11:37,887 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-10-26 23:11:38,335 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-26 23:11:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:11:39,252 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-10-26 23:11:39,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 23:11:39,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-10-26 23:11:39,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:11:39,255 INFO L225 Difference]: With dead ends: 43 [2018-10-26 23:11:39,255 INFO L226 Difference]: Without dead ends: 36 [2018-10-26 23:11:39,256 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-26 23:11:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-26 23:11:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-10-26 23:11:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 23:11:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-10-26 23:11:39,265 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-10-26 23:11:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:11:39,265 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-10-26 23:11:39,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 23:11:39,266 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-10-26 23:11:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:11:39,266 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:39,267 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] [2018-10-26 23:11:39,267 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:39,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:39,267 INFO L82 PathProgramCache]: Analyzing trace with hash -392809978, now seen corresponding path program 1 times [2018-10-26 23:11:39,268 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:11:39,268 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:11:39,279 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 23:11:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:11:39,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:11:39,842 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2018-10-26 23:11:39,844 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 23:11:39,844 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:11:39,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:11:39,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 23:11:39,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 23:11:39,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 23:11:39,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:11:39,856 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-10-26 23:11:40,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:11:40,395 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-10-26 23:11:40,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 23:11:40,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-10-26 23:11:40,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:11:40,396 INFO L225 Difference]: With dead ends: 41 [2018-10-26 23:11:40,396 INFO L226 Difference]: Without dead ends: 33 [2018-10-26 23:11:40,397 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-26 23:11:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-26 23:11:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-26 23:11:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 23:11:40,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-10-26 23:11:40,402 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-10-26 23:11:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:11:40,403 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-10-26 23:11:40,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 23:11:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-10-26 23:11:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:11:40,404 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:11:40,404 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:11:40,404 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:11:40,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:11:40,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2078939236, now seen corresponding path program 1 times [2018-10-26 23:11:40,405 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:11:40,405 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-26 23:11:40,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:11:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:11:40,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:11:40,632 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 23:11:40,633 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:11:40,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:11:40,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:11:40,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:11:40,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:11:40,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:11:40,646 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-10-26 23:11:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:11:41,593 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-10-26 23:11:41,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 23:11:41,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-10-26 23:11:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:11:41,594 INFO L225 Difference]: With dead ends: 39 [2018-10-26 23:11:41,594 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:11:41,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-10-26 23:11:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:11:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:11:41,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:11:41,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:11:41,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-10-26 23:11:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:11:41,596 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:11:41,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:11:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:11:41,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:11:41,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:11:41,747 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-26 23:11:41,753 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-10-26 23:11:41,754 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 14 55) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-10-26 23:11:41,755 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:11:41,756 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:11:41,756 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:11:41,757 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-10-26 23:11:41,757 INFO L421 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-10-26 23:11:41,757 INFO L425 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-10-26 23:11:41,758 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-10-26 23:11:41,758 INFO L425 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-10-26 23:11:41,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:11:41 BoogieIcfgContainer [2018-10-26 23:11:41,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:11:41,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:11:41,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:11:41,769 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:11:41,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:11:36" (3/4) ... [2018-10-26 23:11:41,774 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:11:41,780 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-26 23:11:41,780 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:11:41,780 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-10-26 23:11:41,780 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:11:41,785 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-10-26 23:11:41,786 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-10-26 23:11:41,786 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 23:11:41,807 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 23:11:41,834 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d5a823f1-296a-446d-973d-a271f0b8347a/bin-2019/utaipan/witness.graphml [2018-10-26 23:11:41,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:11:41,835 INFO L168 Benchmark]: Toolchain (without parser) took 6271.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 954.6 MB in the beginning and 989.2 MB in the end (delta: -34.6 MB). Peak memory consumption was 145.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:41,836 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 23:11:41,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:41,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.27 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:11:41,837 INFO L168 Benchmark]: Boogie Preprocessor took 48.31 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:11:41,837 INFO L168 Benchmark]: RCFGBuilder took 959.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:41,837 INFO L168 Benchmark]: TraceAbstraction took 4906.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 147.1 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:41,838 INFO L168 Benchmark]: Witness Printer took 65.84 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 989.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:11:41,839 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 245.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 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 39.27 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.31 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 959.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4906.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 147.1 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.84 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 989.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 19 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...