./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_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_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 8015c985f157600a44233f2d61865f454dda9bb9 ............................................................................................................................................................................................................................................................................................................................................................................................... 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_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 8015c985f157600a44233f2d61865f454dda9bb9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:38:12,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:38:12,867 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:38:12,874 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:38:12,874 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:38:12,875 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:38:12,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:38:12,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:38:12,878 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:38:12,879 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:38:12,879 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:38:12,879 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:38:12,880 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:38:12,881 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:38:12,882 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:38:12,882 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:38:12,883 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:38:12,884 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:38:12,885 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:38:12,886 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:38:12,886 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:38:12,887 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:38:12,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:38:12,889 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:38:12,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:38:12,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:38:12,891 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:38:12,891 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:38:12,891 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:38:12,892 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:38:12,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:38:12,893 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:38:12,893 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:38:12,893 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:38:12,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:38:12,894 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:38:12,894 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 09:38:12,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:38:12,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:38:12,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:38:12,905 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 09:38:12,905 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 09:38:12,905 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 09:38:12,905 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 09:38:12,906 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 09:38:12,906 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 09:38:12,906 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 09:38:12,906 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 09:38:12,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:38:12,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:38:12,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:38:12,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:38:12,909 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:38:12,909 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 09:38:12,910 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_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-10 09:38:12,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:38:12,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:38:12,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:38:12,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:38:12,947 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:38:12,948 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:12,986 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/49e8d4b75/7b87eb704c3b422f904f5424965b203b/FLAG365a38dc7 [2018-11-10 09:38:13,319 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:38:13,320 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:13,326 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/49e8d4b75/7b87eb704c3b422f904f5424965b203b/FLAG365a38dc7 [2018-11-10 09:38:13,335 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/49e8d4b75/7b87eb704c3b422f904f5424965b203b [2018-11-10 09:38:13,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:38:13,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:38:13,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:38:13,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:38:13,342 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:38:13,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a379fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13, skipping insertion in model container [2018-11-10 09:38:13,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:38:13,370 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:38:13,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:38:13,512 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:38:13,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:38:13,558 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:38:13,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13 WrapperNode [2018-11-10 09:38:13,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:38:13,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:38:13,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:38:13,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:38:13,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:38:13,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:38:13,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:38:13,595 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:38:13,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... [2018-11-10 09:38:13,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:38:13,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:38:13,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:38:13,671 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:38:13,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 09:38:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 09:38:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 09:38:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:38:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:38:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:38:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:38:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:38:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:38:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 09:38:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 09:38:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 09:38:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 09:38:14,047 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:38:14,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:14 BoogieIcfgContainer [2018-11-10 09:38:14,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:38:14,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:38:14,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:38:14,051 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:38:14,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:38:13" (1/3) ... [2018-11-10 09:38:14,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208e12b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:38:14, skipping insertion in model container [2018-11-10 09:38:14,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:13" (2/3) ... [2018-11-10 09:38:14,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208e12b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:38:14, skipping insertion in model container [2018-11-10 09:38:14,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:14" (3/3) ... [2018-11-10 09:38:14,054 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:14,062 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:38:14,068 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 09:38:14,079 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 09:38:14,099 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:38:14,099 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:38:14,099 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:38:14,099 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:38:14,099 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:38:14,099 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:38:14,099 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:38:14,099 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:38:14,110 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-11-10 09:38:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 09:38:14,113 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:14,114 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:14,115 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:14,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:14,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1761024876, now seen corresponding path program 1 times [2018-11-10 09:38:14,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:38:14,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:38:14,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:14,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:38:14,157 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:38:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:14,231 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 09:38:14,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:14,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:38:14,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 09:38:14,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 09:38:14,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 09:38:14,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 09:38:14,252 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-11-10 09:38:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:14,269 INFO L93 Difference]: Finished difference Result 138 states and 207 transitions. [2018-11-10 09:38:14,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 09:38:14,270 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 09:38:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:14,276 INFO L225 Difference]: With dead ends: 138 [2018-11-10 09:38:14,276 INFO L226 Difference]: Without dead ends: 69 [2018-11-10 09:38:14,278 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 09:38:14,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-10 09:38:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-10 09:38:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 09:38:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2018-11-10 09:38:14,310 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 18 [2018-11-10 09:38:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:14,310 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2018-11-10 09:38:14,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 09:38:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2018-11-10 09:38:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:38:14,311 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:14,311 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:14,311 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:14,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:14,312 INFO L82 PathProgramCache]: Analyzing trace with hash -844276980, now seen corresponding path program 1 times [2018-11-10 09:38:14,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:38:14,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:38:14,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:14,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:38:14,313 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:38:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:38:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:38:14,385 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 09:38:14,396 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,397 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,397 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,397 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,398 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,398 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,398 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,398 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,399 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,399 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,399 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,399 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,400 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,400 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,400 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,400 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,400 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,401 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,401 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,401 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,401 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,402 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,402 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 09:38:14,402 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 09:38:14,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:38:14 BoogieIcfgContainer [2018-11-10 09:38:14,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:38:14,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:38:14,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:38:14,420 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:38:14,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:14" (3/4) ... [2018-11-10 09:38:14,424 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 09:38:14,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:38:14,425 INFO L168 Benchmark]: Toolchain (without parser) took 1086.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 961.9 MB in the beginning and 1.0 GB in the end (delta: -84.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,426 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:38:14,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.88 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 940.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,428 INFO L168 Benchmark]: Boogie Preprocessor took 75.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,428 INFO L168 Benchmark]: RCFGBuilder took 377.04 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,429 INFO L168 Benchmark]: TraceAbstraction took 370.67 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:14,429 INFO L168 Benchmark]: Witness Printer took 4.80 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 09:38:14,432 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.88 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 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 36.06 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 940.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 377.04 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 370.67 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.80 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.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=4294967314, \old(one_sqrt)=4294967306, \old(pi)=4294967308, \old(pi)=4294967318, \old(pi)=4294967305, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967315, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967307, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967309, \old(qS3_acos)=4294967311, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967313, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L177] float x = 1.0f; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] CALL, EXPR __ieee754_acosf(x) VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] CALL ieee_float_shape_type gf_u; [L94] RET ieee_float_shape_type gf_u; [L95] CALL gf_u.value = (x) [L95] RET gf_u.value = (x) [L96] CALL, EXPR gf_u.word [L96] RET, EXPR gf_u.word [L96] (hx) = gf_u.word [L96] RET (hx) = gf_u.word [L97] COND FALSE !(0) VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L98] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L99] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L100] COND TRUE hx > 0 [L101] RET return 0.0; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L178] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 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=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:38:15,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:38:15,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:38:15,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:38:15,926 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:38:15,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:38:15,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:38:15,929 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:38:15,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:38:15,930 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:38:15,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:38:15,931 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:38:15,932 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:38:15,933 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:38:15,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:38:15,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:38:15,935 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:38:15,936 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:38:15,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:38:15,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:38:15,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:38:15,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:38:15,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:38:15,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:38:15,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:38:15,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:38:15,943 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:38:15,944 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:38:15,945 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:38:15,946 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:38:15,946 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:38:15,946 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:38:15,946 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:38:15,946 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:38:15,947 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:38:15,947 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:38:15,948 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 09:38:15,959 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:38:15,959 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:38:15,960 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:38:15,960 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 09:38:15,961 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 09:38:15,961 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 09:38:15,961 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 09:38:15,961 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 09:38:15,961 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:38:15,962 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:38:15,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:38:15,963 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:38:15,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:38:15,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:38:15,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:38:15,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:38:15,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:38:15,966 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 09:38:15,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:38:15,966 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 09:38:15,966 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 09:38:15,967 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_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-10 09:38:15,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:38:16,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:38:16,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:38:16,007 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:38:16,007 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:38:16,008 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:16,044 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/3f898fdcd/23a7bd8b037c4aafabb8457bcde8ce4d/FLAG299c3afc7 [2018-11-10 09:38:16,354 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:38:16,354 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:16,359 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/3f898fdcd/23a7bd8b037c4aafabb8457bcde8ce4d/FLAG299c3afc7 [2018-11-10 09:38:16,367 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/data/3f898fdcd/23a7bd8b037c4aafabb8457bcde8ce4d [2018-11-10 09:38:16,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:38:16,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:38:16,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:38:16,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:38:16,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:38:16,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,376 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 09:38:16, skipping insertion in model container [2018-11-10 09:38:16,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:38:16,403 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:38:16,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:38:16,555 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:38:16,590 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:38:16,613 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:38:16,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16 WrapperNode [2018-11-10 09:38:16,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:38:16,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:38:16,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:38:16,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:38:16,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:38:16,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:38:16,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:38:16,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:38:16,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... [2018-11-10 09:38:16,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:38:16,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:38:16,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:38:16,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:38:16,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 09:38:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 09:38:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 09:38:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:38:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:38:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:38:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:38:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:38:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:38:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 09:38:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 09:38:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 09:38:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 09:38:16,914 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:38:25,828 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:38:25,942 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:38:26,325 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:38:26,328 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:38:26,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:26 BoogieIcfgContainer [2018-11-10 09:38:26,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:38:26,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:38:26,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:38:26,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:38:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:38:16" (1/3) ... [2018-11-10 09:38:26,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0bbf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:38:26, skipping insertion in model container [2018-11-10 09:38:26,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:38:16" (2/3) ... [2018-11-10 09:38:26,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0bbf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:38:26, skipping insertion in model container [2018-11-10 09:38:26,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:26" (3/3) ... [2018-11-10 09:38:26,334 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-10 09:38:26,342 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:38:26,348 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 09:38:26,356 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 09:38:26,373 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:38:26,374 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:38:26,374 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:38:26,374 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:38:26,374 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:38:26,374 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:38:26,374 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:38:26,374 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:38:26,374 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:38:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-11-10 09:38:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 09:38:26,387 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:26,388 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:26,389 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:26,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:26,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1761024876, now seen corresponding path program 1 times [2018-11-10 09:38:26,395 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:26,395 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 09:38:26,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:26,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:26,472 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 09:38:26,473 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:26,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:26,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:38:26,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 09:38:26,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 09:38:26,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 09:38:26,494 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-11-10 09:38:26,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:26,514 INFO L93 Difference]: Finished difference Result 138 states and 207 transitions. [2018-11-10 09:38:26,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 09:38:26,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 09:38:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:26,521 INFO L225 Difference]: With dead ends: 138 [2018-11-10 09:38:26,521 INFO L226 Difference]: Without dead ends: 69 [2018-11-10 09:38:26,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 09:38:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-10 09:38:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-10 09:38:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-10 09:38:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2018-11-10 09:38:26,551 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 18 [2018-11-10 09:38:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:26,551 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2018-11-10 09:38:26,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 09:38:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2018-11-10 09:38:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:38:26,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:26,553 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:26,553 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:26,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash -844276980, now seen corresponding path program 1 times [2018-11-10 09:38:26,554 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:26,554 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/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 09:38:26,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:26,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:26,666 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 09:38:26,666 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:26,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:26,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 09:38:26,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 09:38:26,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 09:38:26,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 09:38:26,678 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand 5 states. [2018-11-10 09:38:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:34,177 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2018-11-10 09:38:34,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 09:38:34,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-10 09:38:34,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:34,368 INFO L225 Difference]: With dead ends: 76 [2018-11-10 09:38:34,368 INFO L226 Difference]: Without dead ends: 73 [2018-11-10 09:38:34,369 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 09:38:34,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-10 09:38:34,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-10 09:38:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-10 09:38:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2018-11-10 09:38:34,375 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 19 [2018-11-10 09:38:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:34,375 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2018-11-10 09:38:34,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 09:38:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2018-11-10 09:38:34,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:38:34,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:34,377 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:34,377 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:34,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:34,377 INFO L82 PathProgramCache]: Analyzing trace with hash 43226701, now seen corresponding path program 1 times [2018-11-10 09:38:34,377 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:34,378 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 09:38:34,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:34,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:34,601 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 09:38:34,601 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:34,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:34,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 09:38:34,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 09:38:34,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 09:38:34,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 09:38:34,612 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 6 states. [2018-11-10 09:38:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:40,137 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2018-11-10 09:38:40,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 09:38:40,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-10 09:38:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:40,140 INFO L225 Difference]: With dead ends: 90 [2018-11-10 09:38:40,141 INFO L226 Difference]: Without dead ends: 75 [2018-11-10 09:38:40,141 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 09:38:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-10 09:38:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-11-10 09:38:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-10 09:38:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-10 09:38:40,148 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 19 [2018-11-10 09:38:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:40,149 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-10 09:38:40,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 09:38:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-10 09:38:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 09:38:40,149 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:40,150 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:40,150 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:40,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:40,150 INFO L82 PathProgramCache]: Analyzing trace with hash -577608788, now seen corresponding path program 1 times [2018-11-10 09:38:40,150 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:40,151 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 09:38:40,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:40,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:40,417 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 09:38:40,418 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:40,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:40,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 09:38:40,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 09:38:40,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 09:38:40,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 09:38:40,427 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-11-10 09:38:46,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:46,022 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2018-11-10 09:38:46,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 09:38:46,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 09:38:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:46,025 INFO L225 Difference]: With dead ends: 88 [2018-11-10 09:38:46,025 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 09:38:46,026 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 09:38:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 09:38:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-10 09:38:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 09:38:46,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2018-11-10 09:38:46,032 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 19 [2018-11-10 09:38:46,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:46,033 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2018-11-10 09:38:46,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 09:38:46,033 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2018-11-10 09:38:46,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 09:38:46,034 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:46,034 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:38:46,034 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:46,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:46,034 INFO L82 PathProgramCache]: Analyzing trace with hash -897589743, now seen corresponding path program 1 times [2018-11-10 09:38:46,035 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:46,035 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 09:38:46,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:47,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:47,136 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 09:38:47,136 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:47,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:47,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 09:38:47,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 09:38:47,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 09:38:47,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 09:38:47,157 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand 7 states. [2018-11-10 09:38:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:52,013 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2018-11-10 09:38:52,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 09:38:52,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-10 09:38:52,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:52,220 INFO L225 Difference]: With dead ends: 81 [2018-11-10 09:38:52,220 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 09:38:52,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 09:38:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 09:38:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 09:38:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 09:38:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2018-11-10 09:38:52,226 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 21 [2018-11-10 09:38:52,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:52,226 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2018-11-10 09:38:52,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 09:38:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2018-11-10 09:38:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 09:38:52,227 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:52,227 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 09:38:52,228 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:52,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:52,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1849495103, now seen corresponding path program 1 times [2018-11-10 09:38:52,228 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:52,228 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 09:38:52,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:52,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:52,440 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 09:38:52,440 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:52,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:52,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 09:38:52,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 09:38:52,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 09:38:52,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 09:38:52,449 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand 10 states. [2018-11-10 09:38:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:54,854 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2018-11-10 09:38:54,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 09:38:54,854 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-11-10 09:38:54,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:54,855 INFO L225 Difference]: With dead ends: 70 [2018-11-10 09:38:54,855 INFO L226 Difference]: Without dead ends: 60 [2018-11-10 09:38:54,855 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-10 09:38:54,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-10 09:38:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-11-10 09:38:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-10 09:38:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2018-11-10 09:38:54,860 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 27 [2018-11-10 09:38:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:54,864 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2018-11-10 09:38:54,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 09:38:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2018-11-10 09:38:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 09:38:54,865 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:38:54,865 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] [2018-11-10 09:38:54,865 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:38:54,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:38:54,866 INFO L82 PathProgramCache]: Analyzing trace with hash 849015050, now seen corresponding path program 1 times [2018-11-10 09:38:54,866 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:38:54,866 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 09:38:54,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:38:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:38:56,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 09:38:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:38:56,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 09:38:56,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:38:56,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 09:38:56,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 09:38:56,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 09:38:56,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 09:38:56,174 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 7 states. [2018-11-10 09:38:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:38:58,723 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-11-10 09:38:58,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 09:38:58,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-10 09:38:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:38:58,725 INFO L225 Difference]: With dead ends: 60 [2018-11-10 09:38:58,725 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 09:38:58,725 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-10 09:38:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 09:38:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 09:38:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 09:38:58,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 09:38:58,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-10 09:38:58,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:38:58,726 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 09:38:58,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 09:38:58,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 09:38:58,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 09:38:58,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 09:38:58,882 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2018-11-10 09:38:58,882 INFO L421 ceAbstractionStarter]: At program point L93-3(lines 93 97) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-10 09:38:58,882 INFO L425 ceAbstractionStarter]: For program point L93-4(lines 93 97) no Hoare annotation was computed. [2018-11-10 09:38:58,882 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 90 157) no Hoare annotation was computed. [2018-11-10 09:38:58,882 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 90 157) the Hoare annotation is: true [2018-11-10 09:38:58,882 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) [2018-11-10 09:38:58,882 INFO L425 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-10 09:38:58,882 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L421 ceAbstractionStarter]: At program point L136-3(lines 136 140) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))))) [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 90 157) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L141-2(lines 131 156) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L141-3(lines 141 145) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2018-11-10 09:38:58,883 INFO L421 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) (_ bv3229614080 32)) (_ bv0 32))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))))) [2018-11-10 09:38:58,883 INFO L425 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 09:38:58,884 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 171 187) the Hoare annotation is: true [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 171 187) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L421 ceAbstractionStarter]: At program point L181-1(line 181) the Hoare annotation is: (and (= main_~x~0 ((_ to_fp 8 24) RNE 1.0)) (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) main_~res~0) |main_#t~short17|) [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point L181-2(line 181) no Hoare annotation was computed. [2018-11-10 09:38:58,884 INFO L421 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (= main_~x~0 ((_ to_fp 8 24) RNE 1.0)) [2018-11-10 09:38:58,884 INFO L425 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L181-4(lines 181 184) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 171 187) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L428 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L428 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: true [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-10 09:38:58,885 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L428 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: true [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L428 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: true [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2018-11-10 09:38:58,886 INFO L421 ceAbstractionStarter]: At program point L162-3(lines 162 166) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 09:38:58,887 INFO L425 ceAbstractionStarter]: For program point L162-4(lines 162 166) no Hoare annotation was computed. [2018-11-10 09:38:58,887 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 159 169) no Hoare annotation was computed. [2018-11-10 09:38:58,887 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 159 169) the Hoare annotation is: true [2018-11-10 09:38:58,887 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 159 169) no Hoare annotation was computed. [2018-11-10 09:38:58,895 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,896 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,896 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,896 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:38:58 BoogieIcfgContainer [2018-11-10 09:38:58,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:38:58,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:38:58,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:38:58,901 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:38:58,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:38:26" (3/4) ... [2018-11-10 09:38:58,904 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 09:38:58,908 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-10 09:38:58,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 09:38:58,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 09:38:58,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 09:38:58,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 09:38:58,916 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 106 nodes and edges [2018-11-10 09:38:58,916 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-10 09:38:58,917 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-10 09:38:58,917 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 09:38:58,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 09:38:58,936 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 09:38:58,937 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 3229614080bv32) == 0bv32))) && (\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) [2018-11-10 09:38:58,973 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b02a21c8-3747-4124-aa23-f5af3a6224bf/bin-2019/utaipan/witness.graphml [2018-11-10 09:38:58,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:38:58,974 INFO L168 Benchmark]: Toolchain (without parser) took 42604.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 949.7 MB in the beginning and 803.7 MB in the end (delta: 146.1 MB). Peak memory consumption was 268.2 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,975 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:38:58,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.06 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.27 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,976 INFO L168 Benchmark]: Boogie Preprocessor took 36.48 ms. Allocated memory is still 1.0 GB. Free memory was 928.3 MB in the beginning and 922.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,976 INFO L168 Benchmark]: RCFGBuilder took 9639.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -130.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,976 INFO L168 Benchmark]: TraceAbstraction took 32571.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.6 MB in the end (delta: 242.8 MB). Peak memory consumption was 242.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,976 INFO L168 Benchmark]: Witness Printer took 72.22 ms. Allocated memory is still 1.2 GB. Free memory was 810.6 MB in the beginning and 803.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 09:38:58,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.06 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.27 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.48 ms. Allocated memory is still 1.0 GB. Free memory was 928.3 MB in the beginning and 922.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9639.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -130.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32571.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.6 MB in the end (delta: 242.8 MB). Peak memory consumption was 242.8 MB. Max. memory is 11.5 GB. * Witness Printer took 72.22 ms. Allocated memory is still 1.2 GB. Free memory was 810.6 MB in the beginning and 803.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant [2018-11-10 09:38:58,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 09:38:58,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32), 3229614080bv32) == 0bv32))) && (\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(__ieee754_acosf_~hx~1, 2147483647bv32) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. SAFE Result, 32.5s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 28.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 511 SDtfs, 164 SDslu, 1892 SDs, 0 SdLazy, 194 SolverSat, 13 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 26.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 43 PreInvPairs, 57 NumberOfFragments, 149 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 22 QuantifiedInterpolants, 16763 SizeOfPredicates, 45 NumberOfNonLiveVariables, 863 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...