./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b_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_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/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 1203da81dc5c48f4dda347acec83e1939b55600b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/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 1203da81dc5c48f4dda347acec83e1939b55600b ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:50:59,408 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:50:59,409 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:50:59,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:50:59,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:50:59,416 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:50:59,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:50:59,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:50:59,418 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:50:59,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:50:59,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:50:59,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:50:59,420 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:50:59,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:50:59,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:50:59,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:50:59,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:50:59,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:50:59,425 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:50:59,426 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:50:59,427 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:50:59,428 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:50:59,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:50:59,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:50:59,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:50:59,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:50:59,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:50:59,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:50:59,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:50:59,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:50:59,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:50:59,434 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:50:59,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:50:59,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:50:59,435 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:50:59,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:50:59,435 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:50:59,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:50:59,446 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:50:59,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:50:59,446 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:50:59,447 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:50:59,447 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:50:59,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:50:59,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:50:59,448 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:50:59,448 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:50:59,448 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:50:59,449 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:50:59,449 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:50:59,450 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:50:59,450 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:50:59,450 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_b05786a8-76e7-4a9d-98db-1ddc654b67dd/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 -> 1203da81dc5c48f4dda347acec83e1939b55600b [2018-11-10 04:50:59,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:50:59,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:50:59,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:50:59,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:50:59,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:50:59,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:50:59,519 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/0ac0d894e/a777631b0b404c7ab2033e01a8445fea/FLAGff6e9ab66 [2018-11-10 04:50:59,928 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:50:59,928 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:50:59,934 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/0ac0d894e/a777631b0b404c7ab2033e01a8445fea/FLAGff6e9ab66 [2018-11-10 04:50:59,944 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/0ac0d894e/a777631b0b404c7ab2033e01a8445fea [2018-11-10 04:50:59,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:50:59,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:50:59,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:50:59,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:50:59,950 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:50:59,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:50:59" (1/1) ... [2018-11-10 04:50:59,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbc8502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:50:59, skipping insertion in model container [2018-11-10 04:50:59,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:50:59" (1/1) ... [2018-11-10 04:50:59,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:50:59,978 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:51:00,112 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:51:00,115 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:51:00,150 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:51:00,166 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:51:00,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00 WrapperNode [2018-11-10 04:51:00,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:51:00,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:51:00,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:51:00,167 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:51:00,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:51:00,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:51:00,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:51:00,242 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:51:00,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... [2018-11-10 04:51:00,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:51:00,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:51:00,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:51:00,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:51:00,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:51:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:51:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:51:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:51:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:51:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 04:51:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 04:51:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:51:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:51:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2018-11-10 04:51:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2018-11-10 04:51:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 04:51:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 04:51:00,889 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:51:00,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:00 BoogieIcfgContainer [2018-11-10 04:51:00,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:51:00,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:51:00,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:51:00,892 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:51:00,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:50:59" (1/3) ... [2018-11-10 04:51:00,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635faf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:51:00, skipping insertion in model container [2018-11-10 04:51:00,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:00" (2/3) ... [2018-11-10 04:51:00,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635faf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:51:00, skipping insertion in model container [2018-11-10 04:51:00,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:00" (3/3) ... [2018-11-10 04:51:00,894 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:51:00,900 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:51:00,906 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:51:00,915 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:51:00,936 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:51:00,936 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:51:00,936 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:51:00,936 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:51:00,936 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:51:00,937 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:51:00,937 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:51:00,937 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:51:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2018-11-10 04:51:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 04:51:00,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:51:00,955 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:51:00,956 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:51:00,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:51:00,961 INFO L82 PathProgramCache]: Analyzing trace with hash -68355118, now seen corresponding path program 1 times [2018-11-10 04:51:00,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:51:00,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:51:00,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:51:00,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:51:00,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:51:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:51:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:51:01,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:51:01,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:51:01,051 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:51:01,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:51:01,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:51:01,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:51:01,064 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2018-11-10 04:51:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:51:01,088 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2018-11-10 04:51:01,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:51:01,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 28 [2018-11-10 04:51:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:51:01,096 INFO L225 Difference]: With dead ends: 200 [2018-11-10 04:51:01,096 INFO L226 Difference]: Without dead ends: 100 [2018-11-10 04:51:01,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:51:01,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-10 04:51:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-11-10 04:51:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-10 04:51:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2018-11-10 04:51:01,130 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 28 [2018-11-10 04:51:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:51:01,131 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2018-11-10 04:51:01,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:51:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2018-11-10 04:51:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 04:51:01,132 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:51:01,132 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:51:01,132 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:51:01,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:51:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash 267428994, now seen corresponding path program 1 times [2018-11-10 04:51:01,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:51:01,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:51:01,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:51:01,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:51:01,134 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:51:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:51:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:51:01,292 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 04:51:01,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,311 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,312 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,316 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,317 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,317 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,317 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,317 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:51:01,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,320 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 04:51:01,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:51:01 BoogieIcfgContainer [2018-11-10 04:51:01,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:51:01,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:51:01,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:51:01,334 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:51:01,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:00" (3/4) ... [2018-11-10 04:51:01,337 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 04:51:01,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:51:01,338 INFO L168 Benchmark]: Toolchain (without parser) took 1391.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -55.7 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,339 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:51:01,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.20 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 944.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,340 INFO L168 Benchmark]: Boogie Preprocessor took 45.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,340 INFO L168 Benchmark]: RCFGBuilder took 602.29 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,341 INFO L168 Benchmark]: TraceAbstraction took 443.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:01,341 INFO L168 Benchmark]: Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:51:01,343 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.20 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 944.2 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 74.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 602.29 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 443.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 - 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 - 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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 235]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 218. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450950, \old(tiny_sqrt)=6442450957, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L229] float x = -1.0f / 0.0f; [L230] float y = __VERIFIER_nondet_float(); [L232] CALL, EXPR __ieee754_hypotf(x, y) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L82] float a = x, b = y, t1, t2, y1, y2, w; [L83] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L86] CALL ieee_float_shape_type gf_u; [L86] RET ieee_float_shape_type gf_u; [L87] CALL gf_u.value = (x) [L87] RET gf_u.value = (x) [L88] CALL, EXPR gf_u.word [L88] RET, EXPR gf_u.word [L88] (ha) = gf_u.word [L88] RET (ha) = gf_u.word [L89] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L90] ha &= 0x7fffffffL VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] CALL ieee_float_shape_type gf_u; [L92] RET ieee_float_shape_type gf_u; [L93] CALL gf_u.value = (y) [L93] RET gf_u.value = (y) [L94] CALL, EXPR gf_u.word [L94] RET, EXPR gf_u.word [L94] (hb) = gf_u.word [L94] RET (hb) = gf_u.word [L95] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L96] hb &= 0x7fffffffL VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L97] COND TRUE hb > ha [L98] a = y [L99] b = x [L100] j = ha [L101] ha = hb [L102] hb = j VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L108] CALL ieee_float_shape_type sf_u; [L108] RET ieee_float_shape_type sf_u; [L109] CALL sf_u.word = (ha) [L109] RET sf_u.word = (ha) [L110] CALL, EXPR sf_u.value [L110] RET, EXPR sf_u.value [L110] (a) = sf_u.value [L110] RET (a) = sf_u.value [L111] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L113] CALL ieee_float_shape_type sf_u; [L113] RET ieee_float_shape_type sf_u; [L114] CALL sf_u.word = (hb) [L114] RET sf_u.word = (hb) [L115] CALL, EXPR sf_u.value [L115] RET, EXPR sf_u.value [L115] (b) = sf_u.value [L115] RET (b) = sf_u.value [L116] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L117] COND TRUE (ha - hb) > 0xf000000L [L118] RET return a + b; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L232] EXPR __ieee754_hypotf(x, y) VAL [__ieee754_hypotf(x, y)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947, y=6442450958] [L232] float res = __ieee754_hypotf(x, y); [L234] CALL, EXPR isinf_float(res) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L212] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L214] CALL ieee_float_shape_type gf_u; [L214] RET ieee_float_shape_type gf_u; [L215] CALL gf_u.value = (x) [L215] RET gf_u.value = (x) [L216] CALL, EXPR gf_u.word [L216] RET, EXPR gf_u.word [L216] (ix) = gf_u.word [L216] RET (ix) = gf_u.word [L217] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L218] ix &= 0x7fffffff [L219] RET return ((ix) == 0x7f800000L); VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] EXPR isinf_float(res) VAL [isinf_float(res)=0, one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947, y=6442450958] [L234] COND TRUE !isinf_float(res) [L235] __VERIFIER_error() VAL [one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947, y=6442450958] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 104 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 126 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=104occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:51:02,784 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:51:02,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:51:02,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:51:02,794 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:51:02,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:51:02,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:51:02,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:51:02,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:51:02,798 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:51:02,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:51:02,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:51:02,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:51:02,801 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:51:02,802 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:51:02,803 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:51:02,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:51:02,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:51:02,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:51:02,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:51:02,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:51:02,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:51:02,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:51:02,811 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:51:02,811 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:51:02,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:51:02,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:51:02,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:51:02,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:51:02,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:51:02,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:51:02,816 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:51:02,816 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:51:02,816 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:51:02,817 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:51:02,817 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:51:02,817 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 04:51:02,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:51:02,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:51:02,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:51:02,828 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:51:02,829 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:51:02,829 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:51:02,829 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:51:02,829 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:51:02,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 04:51:02,830 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 04:51:02,831 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:51:02,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:51:02,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:51:02,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:51:02,833 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:51:02,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:51:02,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:51:02,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:51:02,834 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 04:51:02,834 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 04:51:02,834 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_b05786a8-76e7-4a9d-98db-1ddc654b67dd/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 -> 1203da81dc5c48f4dda347acec83e1939b55600b [2018-11-10 04:51:02,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:51:02,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:51:02,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:51:02,877 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:51:02,877 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:51:02,878 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:51:02,922 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/d264c6685/d604abdcd51f48cc93275c2d06d22a26/FLAG7b4f8903d [2018-11-10 04:51:03,329 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:51:03,330 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/sv-benchmarks/c/float-newlib/float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:51:03,335 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/d264c6685/d604abdcd51f48cc93275c2d06d22a26/FLAG7b4f8903d [2018-11-10 04:51:03,344 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/data/d264c6685/d604abdcd51f48cc93275c2d06d22a26 [2018-11-10 04:51:03,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:51:03,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:51:03,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:51:03,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:51:03,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:51:03,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de11074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03, skipping insertion in model container [2018-11-10 04:51:03,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:51:03,387 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:51:03,556 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:51:03,560 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:51:03,605 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:51:03,623 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:51:03,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03 WrapperNode [2018-11-10 04:51:03,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:51:03,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:51:03,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:51:03,625 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:51:03,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:51:03,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:51:03,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:51:03,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:51:03,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... [2018-11-10 04:51:03,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:51:03,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:51:03,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:51:03,726 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:51:03,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:51:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:51:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:51:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:51:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:51:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 04:51:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 04:51:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:51:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:51:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2018-11-10 04:51:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2018-11-10 04:51:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 04:51:03,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 04:51:04,003 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 04:51:04,199 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 04:51:04,360 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 04:51:04,668 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 04:51:05,150 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:51:05,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:05 BoogieIcfgContainer [2018-11-10 04:51:05,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:51:05,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:51:05,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:51:05,153 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:51:05,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:51:03" (1/3) ... [2018-11-10 04:51:05,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49df1f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:51:05, skipping insertion in model container [2018-11-10 04:51:05,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:51:03" (2/3) ... [2018-11-10 04:51:05,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49df1f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:51:05, skipping insertion in model container [2018-11-10 04:51:05,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:51:05" (3/3) ... [2018-11-10 04:51:05,155 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b_true-unreach-call.c [2018-11-10 04:51:05,161 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:51:05,166 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:51:05,174 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:51:05,193 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:51:05,193 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:51:05,193 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:51:05,193 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:51:05,193 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:51:05,193 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:51:05,193 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:51:05,194 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:51:05,194 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:51:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-10 04:51:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 04:51:05,211 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:51:05,212 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:51:05,214 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:51:05,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:51:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1205654954, now seen corresponding path program 1 times [2018-11-10 04:51:05,221 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:51:05,221 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 04:51:05,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:51:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:51:05,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:51:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:51:05,325 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:51:05,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:51:05,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:51:05,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:51:05,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:51:05,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:51:05,351 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-11-10 04:51:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:51:05,378 INFO L93 Difference]: Finished difference Result 198 states and 315 transitions. [2018-11-10 04:51:05,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:51:05,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-11-10 04:51:05,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:51:05,387 INFO L225 Difference]: With dead ends: 198 [2018-11-10 04:51:05,387 INFO L226 Difference]: Without dead ends: 99 [2018-11-10 04:51:05,389 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:51:05,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-11-10 04:51:05,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-11-10 04:51:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-10 04:51:05,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2018-11-10 04:51:05,422 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 27 [2018-11-10 04:51:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:51:05,422 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2018-11-10 04:51:05,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:51:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2018-11-10 04:51:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 04:51:05,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:51:05,425 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:51:05,425 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:51:05,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:51:05,425 INFO L82 PathProgramCache]: Analyzing trace with hash 221052918, now seen corresponding path program 1 times [2018-11-10 04:51:05,426 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 04:51:05,426 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b05786a8-76e7-4a9d-98db-1ddc654b67dd/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 04:51:05,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:51:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:51:05,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:51:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:51:07,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:51:07,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:51:07,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-10 04:51:07,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-10 04:51:07,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-10 04:51:07,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-11-10 04:51:07,996 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand 16 states. [2018-11-10 04:51:12,885 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 04:51:38,017 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:689) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-11-10 04:51:38,019 INFO L168 Benchmark]: Toolchain (without parser) took 34672.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 949.7 MB in the beginning and 907.2 MB in the end (delta: 42.5 MB). Peak memory consumption was 219.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,020 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. [2018-11-10 04:51:38,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,021 INFO L168 Benchmark]: Boogie Preprocessor took 49.66 ms. Allocated memory is still 1.0 GB. Free memory was 927.2 MB in the beginning and 916.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,021 INFO L168 Benchmark]: RCFGBuilder took 1424.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,021 INFO L168 Benchmark]: TraceAbstraction took 32868.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.2 MB in the end (delta: 193.5 MB). Peak memory consumption was 193.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:51:38,024 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 275.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.66 ms. Allocated memory is still 1.0 GB. Free memory was 927.2 MB in the beginning and 916.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1424.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32868.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.2 MB in the end (delta: 193.5 MB). Peak memory consumption was 193.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...