./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_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_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc ................................................................................................................................................................................................................................................................................................................................................................................................................ 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_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:50:12,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:50:12,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:50:12,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:50:12,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:50:12,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:50:12,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:50:12,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:50:12,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:50:12,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:50:12,831 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:50:12,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:50:12,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:50:12,833 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:50:12,833 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:50:12,834 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:50:12,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:50:12,835 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:50:12,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:50:12,838 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:50:12,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:50:12,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:50:12,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:50:12,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:50:12,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:50:12,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:50:12,841 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:50:12,842 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:50:12,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:50:12,843 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:50:12,843 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:50:12,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:50:12,844 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:50:12,844 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:50:12,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:50:12,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:50:12,845 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 11:50:12,855 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:50:12,855 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:50:12,856 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:50:12,856 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:50:12,856 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:50:12,856 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:50:12,857 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 11:50:12,857 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:50:12,857 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 11:50:12,857 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 11:50:12,857 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:50:12,858 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:50:12,858 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:50:12,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:50:12,859 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:50:12,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:50:12,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:50:12,861 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:50:12,861 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_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-11-10 11:50:12,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:50:12,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:50:12,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:50:12,898 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:50:12,898 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:50:12,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:12,941 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/c8e63e31f/1175475651b74fa39f866a8d5f77544f/FLAG7a8fd2ec6 [2018-11-10 11:50:13,345 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:50:13,346 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:13,352 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/c8e63e31f/1175475651b74fa39f866a8d5f77544f/FLAG7a8fd2ec6 [2018-11-10 11:50:13,360 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/c8e63e31f/1175475651b74fa39f866a8d5f77544f [2018-11-10 11:50:13,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:50:13,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:50:13,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:50:13,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:50:13,366 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:50:13,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1114ae3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13, skipping insertion in model container [2018-11-10 11:50:13,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:50:13,393 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:50:13,512 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:50:13,515 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:50:13,545 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:50:13,558 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:50:13,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13 WrapperNode [2018-11-10 11:50:13,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:50:13,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:50:13,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:50:13,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:50:13,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:50:13,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:50:13,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:50:13,592 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:50:13,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... [2018-11-10 11:50:13,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:50:13,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:50:13,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:50:13,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:50:13,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 11:50:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 11:50:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:50:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:50:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 11:50:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 11:50:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:50:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:50:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:50:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:50:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 11:50:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 11:50:14,037 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:50:14,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:14 BoogieIcfgContainer [2018-11-10 11:50:14,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:50:14,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:50:14,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:50:14,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:50:14,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:50:13" (1/3) ... [2018-11-10 11:50:14,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe8e81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:50:14, skipping insertion in model container [2018-11-10 11:50:14,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:13" (2/3) ... [2018-11-10 11:50:14,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe8e81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:50:14, skipping insertion in model container [2018-11-10 11:50:14,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:14" (3/3) ... [2018-11-10 11:50:14,044 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:14,050 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:50:14,056 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:50:14,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:50:14,089 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:50:14,090 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:50:14,090 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:50:14,090 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:50:14,090 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:50:14,090 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:50:14,090 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:50:14,090 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:50:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-10 11:50:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:50:14,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:14,107 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:14,108 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:14,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:14,113 INFO L82 PathProgramCache]: Analyzing trace with hash -388422470, now seen corresponding path program 1 times [2018-11-10 11:50:14,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:50:14,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:50:14,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:14,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:50:14,144 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:50:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:14,219 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 11:50:14,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:14,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:50:14,221 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:50:14,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:50:14,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:50:14,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:50:14,234 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-10 11:50:14,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:50:14,253 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2018-11-10 11:50:14,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:50:14,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-10 11:50:14,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:50:14,261 INFO L225 Difference]: With dead ends: 133 [2018-11-10 11:50:14,261 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 11:50:14,263 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 11:50:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 11:50:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-10 11:50:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 11:50:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2018-11-10 11:50:14,293 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 23 [2018-11-10 11:50:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:50:14,294 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2018-11-10 11:50:14,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:50:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2018-11-10 11:50:14,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 11:50:14,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:14,295 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:14,296 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:14,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:14,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1994427072, now seen corresponding path program 1 times [2018-11-10 11:50:14,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:50:14,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:50:14,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:14,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:50:14,297 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:50:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:50:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:50:14,372 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:50:14,386 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,387 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,388 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,389 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:50:14,390 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:50:14,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:50:14 BoogieIcfgContainer [2018-11-10 11:50:14,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:50:14,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:50:14,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:50:14,406 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:50:14,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:14" (3/4) ... [2018-11-10 11:50:14,409 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 11:50:14,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:50:14,410 INFO L168 Benchmark]: Toolchain (without parser) took 1047.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -99.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,411 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:50:14,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 944.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 941.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,412 INFO L168 Benchmark]: Boogie Preprocessor took 70.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,413 INFO L168 Benchmark]: RCFGBuilder took 375.66 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,413 INFO L168 Benchmark]: TraceAbstraction took 366.84 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-11-10 11:50:14,413 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:50:14,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 944.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 941.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 375.66 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 366.84 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] 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)=4294967315, \old(one_sqrt)=4294967307, \old(pi)=4294967305, \old(pi)=4294967318, \old(pi)=4294967309, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967316, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967308, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967310, \old(qS3_acos)=4294967313, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967314, 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] [L169] float x = __VERIFIER_nondet_float(); [L171] COND TRUE x < -1.0f || x > 1.0f VAL [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=4294967306] [L173] CALL, EXPR __ieee754_acosf(x) 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] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; 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] [L97] CALL ieee_float_shape_type gf_u; [L97] RET ieee_float_shape_type gf_u; [L98] CALL gf_u.value = (x) [L98] RET gf_u.value = (x) [L99] CALL, EXPR gf_u.word [L99] RET, EXPR gf_u.word [L99] (hx) = gf_u.word [L99] RET (hx) = gf_u.word [L100] COND FALSE !(0) 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, tiny_sqrt=1/1000000000000000000000000000000] [L101] ix = hx & 0x7fffffff 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, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE ix == 0x3f800000 VAL [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] [L103] COND TRUE hx > 0 [L104] RET return 0.0; 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, tiny_sqrt=1/1000000000000000000000000000000] [L173] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, 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, x=4294967306] [L173] float res = __ieee754_acosf(x); [L176] CALL, EXPR isnan_float(res) VAL [\old(x)=0, 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] [L13] RET return x != x; VAL [\old(x)=0, \result=0, 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, x=0] [L176] EXPR isnan_float(res) VAL [isnan_float(res)=0, 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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L176] COND TRUE !isnan_float(res) [L177] __VERIFIER_error() 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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 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=71occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 11:50:15,830 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:50:15,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:50:15,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:50:15,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:50:15,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:50:15,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:50:15,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:50:15,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:50:15,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:50:15,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:50:15,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:50:15,843 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:50:15,844 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:50:15,845 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:50:15,845 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:50:15,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:50:15,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:50:15,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:50:15,849 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:50:15,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:50:15,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:50:15,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:50:15,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:50:15,853 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:50:15,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:50:15,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:50:15,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:50:15,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:50:15,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:50:15,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:50:15,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:50:15,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:50:15,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:50:15,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:50:15,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:50:15,858 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 11:50:15,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:50:15,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:50:15,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:50:15,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:50:15,870 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:50:15,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:50:15,870 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:50:15,870 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:50:15,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:50:15,871 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:50:15,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:50:15,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:50:15,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:50:15,873 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 11:50:15,874 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 11:50:15,874 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_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-11-10 11:50:15,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:50:15,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:50:15,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:50:15,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:50:15,912 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:50:15,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:15,947 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/e6047e7b5/380e1d226ddb4d0491000706ab17ca33/FLAG99fe57610 [2018-11-10 11:50:16,342 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:50:16,342 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:16,347 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/e6047e7b5/380e1d226ddb4d0491000706ab17ca33/FLAG99fe57610 [2018-11-10 11:50:16,355 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/data/e6047e7b5/380e1d226ddb4d0491000706ab17ca33 [2018-11-10 11:50:16,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:50:16,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:50:16,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:50:16,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:50:16,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:50:16,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2635eeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16, skipping insertion in model container [2018-11-10 11:50:16,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:50:16,393 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:50:16,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:50:16,542 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:50:16,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:50:16,598 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:50:16,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16 WrapperNode [2018-11-10 11:50:16,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:50:16,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:50:16,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:50:16,600 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:50:16,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:50:16,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:50:16,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:50:16,641 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:50:16,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... [2018-11-10 11:50:16,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:50:16,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:50:16,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:50:16,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:50:16,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-10 11:50:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-10 11:50:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:50:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:50:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 11:50:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 11:50:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:50:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:50:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:50:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:50:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 11:50:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 11:50:16,894 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:50:24,945 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:50:25,042 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:50:25,386 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:50:25,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:25 BoogieIcfgContainer [2018-11-10 11:50:25,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:50:25,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:50:25,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:50:25,389 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:50:25,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:50:16" (1/3) ... [2018-11-10 11:50:25,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3e5db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:50:25, skipping insertion in model container [2018-11-10 11:50:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:50:16" (2/3) ... [2018-11-10 11:50:25,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3e5db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:50:25, skipping insertion in model container [2018-11-10 11:50:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:25" (3/3) ... [2018-11-10 11:50:25,392 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-11-10 11:50:25,397 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:50:25,402 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:50:25,410 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:50:25,427 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:50:25,427 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:50:25,427 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:50:25,428 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:50:25,428 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:50:25,428 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:50:25,428 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:50:25,428 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:50:25,428 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:50:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-11-10 11:50:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 11:50:25,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:25,444 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:25,445 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:25,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:25,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1628678755, now seen corresponding path program 1 times [2018-11-10 11:50:25,451 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:50:25,451 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:25,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:25,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:50:25,541 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 11:50:25,542 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:50:25,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:25,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:50:25,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:50:25,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:50:25,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:50:25,562 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2018-11-10 11:50:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:50:25,583 INFO L93 Difference]: Finished difference Result 131 states and 194 transitions. [2018-11-10 11:50:25,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:50:25,584 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 11:50:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:50:25,591 INFO L225 Difference]: With dead ends: 131 [2018-11-10 11:50:25,591 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 11:50:25,594 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 11:50:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 11:50:25,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 11:50:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 11:50:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2018-11-10 11:50:25,625 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 22 [2018-11-10 11:50:25,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:50:25,625 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2018-11-10 11:50:25,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:50:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-11-10 11:50:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:50:25,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:25,627 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:25,627 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:25,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1316710953, now seen corresponding path program 1 times [2018-11-10 11:50:25,628 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:50:25,628 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:25,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:25,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:50:25,807 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 11:50:25,807 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:50:25,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:25,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 11:50:25,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 11:50:25,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 11:50:25,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:50:25,817 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand 7 states. [2018-11-10 11:50:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:50:31,395 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2018-11-10 11:50:31,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 11:50:31,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 11:50:31,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:50:31,397 INFO L225 Difference]: With dead ends: 77 [2018-11-10 11:50:31,397 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 11:50:31,398 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 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 11:50:31,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 11:50:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-10 11:50:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-10 11:50:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2018-11-10 11:50:31,404 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 23 [2018-11-10 11:50:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:50:31,404 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2018-11-10 11:50:31,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 11:50:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2018-11-10 11:50:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:50:31,405 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:31,405 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:31,405 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:31,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:31,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1600866615, now seen corresponding path program 1 times [2018-11-10 11:50:31,406 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:50:31,406 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:31,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:31,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:50:32,314 WARN L179 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 11:50:33,802 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 11:50:36,028 WARN L179 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 11:50:38,400 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 11:50:38,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:50:38,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:38,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 11:50:38,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 11:50:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 11:50:38,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:50:38,410 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand 7 states. [2018-11-10 11:50:46,857 WARN L179 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-10 11:50:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:50:52,170 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2018-11-10 11:50:52,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 11:50:52,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 11:50:52,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:50:52,172 INFO L225 Difference]: With dead ends: 71 [2018-11-10 11:50:52,172 INFO L226 Difference]: Without dead ends: 64 [2018-11-10 11:50:52,172 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:50:52,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-10 11:50:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-10 11:50:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-10 11:50:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2018-11-10 11:50:52,178 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 23 [2018-11-10 11:50:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:50:52,178 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2018-11-10 11:50:52,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 11:50:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2018-11-10 11:50:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 11:50:52,179 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:52,179 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:52,179 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:52,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:52,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1105094317, now seen corresponding path program 1 times [2018-11-10 11:50:52,179 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:50:52,179 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:52,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:52,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:50:52,397 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 11:50:52,397 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:50:52,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:52,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:50:52,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:50:52,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:50:52,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:50:52,405 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand 8 states. [2018-11-10 11:50:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:50:57,942 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2018-11-10 11:50:57,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 11:50:57,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-10 11:50:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:50:57,944 INFO L225 Difference]: With dead ends: 76 [2018-11-10 11:50:57,944 INFO L226 Difference]: Without dead ends: 57 [2018-11-10 11:50:57,945 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-10 11:50:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-10 11:50:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-11-10 11:50:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 11:50:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2018-11-10 11:50:57,948 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 25 [2018-11-10 11:50:57,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:50:57,948 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2018-11-10 11:50:57,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:50:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2018-11-10 11:50:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 11:50:57,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:50:57,949 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:50:57,949 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:50:57,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:50:57,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1301607822, now seen corresponding path program 1 times [2018-11-10 11:50:57,949 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:50:57,949 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:50:57,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:50:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:50:58,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:50:59,072 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 11:50:59,072 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:50:59,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:50:59,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:50:59,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:50:59,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:50:59,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:50:59,093 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 8 states. [2018-11-10 11:51:03,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:51:03,952 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-11-10 11:51:04,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:51:04,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-10 11:51:04,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:51:04,113 INFO L225 Difference]: With dead ends: 67 [2018-11-10 11:51:04,114 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 11:51:04,114 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-10 11:51:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 11:51:04,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-10 11:51:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-10 11:51:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2018-11-10 11:51:04,119 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 25 [2018-11-10 11:51:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:51:04,119 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2018-11-10 11:51:04,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:51:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2018-11-10 11:51:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 11:51:04,120 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:51:04,120 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:51:04,120 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:51:04,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:51:04,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1077545753, now seen corresponding path program 1 times [2018-11-10 11:51:04,121 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:51:04,121 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/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 11:51:04,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:51:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:51:05,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:51:05,361 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 11:51:05,361 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:51:05,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:51:05,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 11:51:05,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 11:51:05,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 11:51:05,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-10 11:51:05,381 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 9 states. [2018-11-10 11:51:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:51:08,008 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-10 11:51:08,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 11:51:08,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-11-10 11:51:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:51:08,009 INFO L225 Difference]: With dead ends: 56 [2018-11-10 11:51:08,009 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 11:51:08,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-10 11:51:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 11:51:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 11:51:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 11:51:08,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 11:51:08,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-10 11:51:08,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:51:08,011 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:51:08,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 11:51:08,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:51:08,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:51:08,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 11:51:08,933 WARN L179 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-10 11:51:08,962 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L425 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-10 11:51:08,963 INFO L421 ceAbstractionStarter]: At program point L139-3(lines 139 143) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__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 (= (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 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L144-2(lines 134 159) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L144-3(lines 144 148) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-10 11:51:08,964 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-10 11:51:08,965 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__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 (= (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 11:51:08,965 INFO L425 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-10 11:51:08,965 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-10 11:51:08,965 INFO L421 ceAbstractionStarter]: At program point L96-3(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-10 11:51:08,965 INFO L425 ceAbstractionStarter]: For program point L96-4(lines 96 100) no Hoare annotation was computed. [2018-11-10 11:51:08,965 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (let ((.cse0 (bvand __ieee754_acosf_~hx~1 (_ bv2147483647 32)))) (and (not (bvslt .cse0 (_ bv1056964608 32))) (= |__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 (bvsgt .cse0 (_ bv1065353216 32))) (not (= (bvadd .cse0 (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-10 11:51:08,965 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 11:51:08,966 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 162 183) the Hoare annotation is: true [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 162 183) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point L177(line 177) no Hoare annotation was computed. [2018-11-10 11:51:08,966 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L421 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) (exists ((__ieee754_acosf_~x (_ FloatingPoint 8 24))) (= (let ((.cse1 (fp.sub RNE __ieee754_acosf_~x __ieee754_acosf_~x))) (fp.div RNE .cse1 .cse1)) main_~res~0))) [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point L176-1(lines 176 179) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L421 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 162 183) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point L173-1(line 173) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point L171(lines 171 180) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point L171-2(lines 171 180) no Hoare annotation was computed. [2018-11-10 11:51:08,967 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-10 11:51:08,968 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-10 11:51:08,969 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-10 11:51:08,969 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-10 11:51:08,970 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-10 11:51:08,970 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-10 11:51:08,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:08,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:51:08 BoogieIcfgContainer [2018-11-10 11:51:08,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:51:08,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:51:08,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:51:08,982 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:51:08,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:50:25" (3/4) ... [2018-11-10 11:51:08,985 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:51:08,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 11:51:08,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-10 11:51:08,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 11:51:08,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 11:51:08,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 11:51:08,997 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2018-11-10 11:51:08,997 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-10 11:51:08,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-10 11:51:08,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 11:51:09,015 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 11:51:09,015 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\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 11:51:09,047 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7204633d-9b23-4dbe-bb77-2b28019f79e2/bin-2019/utaipan/witness.graphml [2018-11-10 11:51:09,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:51:09,049 INFO L168 Benchmark]: Toolchain (without parser) took 52690.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 949.8 MB in the beginning and 826.8 MB in the end (delta: 123.0 MB). Peak memory consumption was 263.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:51:09,049 INFO L168 Benchmark]: CDTParser took 0.12 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 11:51:09,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 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 11:51:09,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.93 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 11:51:09,050 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:51:09,050 INFO L168 Benchmark]: RCFGBuilder took 8709.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:51:09,050 INFO L168 Benchmark]: TraceAbstraction took 43594.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.6 MB in the end (delta: 248.0 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. [2018-11-10 11:51:09,050 INFO L168 Benchmark]: Witness Printer took 66.04 ms. Allocated memory is still 1.2 GB. Free memory was 833.6 MB in the beginning and 826.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:51:09,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 239.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 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 40.93 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 37.01 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 8709.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43594.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 833.6 MB in the end (delta: 248.0 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.04 ms. Allocated memory is still 1.2 GB. Free memory was 833.6 MB in the beginning and 826.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: 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: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-11-10 11:51:09,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-10 11:51:09,057 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\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])) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 70 locations, 1 error locations. SAFE Result, 43.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 32.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 412 SDtfs, 147 SDslu, 1608 SDs, 0 SdLazy, 163 SolverSat, 7 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 149 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 28 QuantifiedInterpolants, 22666 SizeOfPredicates, 39 NumberOfNonLiveVariables, 750 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...