./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e .................................................................................................................................................................................................................................................................................................................................................. 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_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:32:59,835 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:32:59,836 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:32:59,845 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:32:59,845 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:32:59,846 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:32:59,847 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:32:59,848 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:32:59,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:32:59,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:32:59,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:32:59,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:32:59,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:32:59,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:32:59,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:32:59,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:32:59,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:32:59,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:32:59,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:32:59,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:32:59,858 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:32:59,859 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:32:59,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:32:59,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:32:59,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:32:59,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:32:59,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:32:59,863 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:32:59,863 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:32:59,864 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:32:59,864 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:32:59,865 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:32:59,865 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:32:59,865 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:32:59,865 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:32:59,866 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:32:59,866 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:32:59,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:32:59,876 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:32:59,877 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:32:59,877 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:32:59,877 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:32:59,877 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:32:59,878 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:32:59,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:32:59,879 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:32:59,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:32:59,879 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:32:59,879 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:32:59,880 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:32:59,880 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:32:59,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:32:59,881 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:32:59,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:32:59,882 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:32:59,882 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_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2018-12-08 19:32:59,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:32:59,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:32:59,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:32:59,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:32:59,914 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:32:59,915 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:32:59,950 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/d610540f5/1a0458313098423bb943c52deb767a72/FLAGda386c8a4 [2018-12-08 19:33:00,327 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:33:00,327 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:33:00,331 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/d610540f5/1a0458313098423bb943c52deb767a72/FLAGda386c8a4 [2018-12-08 19:33:00,340 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/d610540f5/1a0458313098423bb943c52deb767a72 [2018-12-08 19:33:00,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:33:00,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:33:00,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:33:00,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:33:00,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:33:00,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c1f7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00, skipping insertion in model container [2018-12-08 19:33:00,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:33:00,363 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:33:00,465 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:33:00,468 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:33:00,489 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:33:00,530 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:33:00,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00 WrapperNode [2018-12-08 19:33:00,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:33:00,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:33:00,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:33:00,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:33:00,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:33:00,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:33:00,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:33:00,547 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:33:00,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... [2018-12-08 19:33:00,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:33:00,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:33:00,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:33:00,567 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:33:00,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-12-08 19:33:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:33:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 19:33:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:33:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 19:33:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:33:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-08 19:33:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-08 19:33:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:33:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:33:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 19:33:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:33:00,772 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:33:00,772 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 19:33:00,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:00 BoogieIcfgContainer [2018-12-08 19:33:00,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:33:00,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:33:00,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:33:00,775 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:33:00,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:33:00" (1/3) ... [2018-12-08 19:33:00,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f067c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:33:00, skipping insertion in model container [2018-12-08 19:33:00,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:00" (2/3) ... [2018-12-08 19:33:00,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f067c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:33:00, skipping insertion in model container [2018-12-08 19:33:00,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:00" (3/3) ... [2018-12-08 19:33:00,777 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:33:00,782 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:33:00,786 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:33:00,795 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:33:00,812 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:33:00,812 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:33:00,812 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:33:00,813 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:33:00,813 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:33:00,813 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:33:00,813 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:33:00,813 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:33:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-08 19:33:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:33:00,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:00,826 INFO L402 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] [2018-12-08 19:33:00,828 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:00,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:00,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1885970115, now seen corresponding path program 1 times [2018-12-08 19:33:00,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:33:00,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:33:00,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:00,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:33:00,860 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:33:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:00,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:00,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:33:00,924 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 19:33:00,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:33:00,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:33:00,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:33:00,936 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2018-12-08 19:33:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:00,958 INFO L93 Difference]: Finished difference Result 100 states and 143 transitions. [2018-12-08 19:33:00,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:33:00,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-12-08 19:33:00,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:00,965 INFO L225 Difference]: With dead ends: 100 [2018-12-08 19:33:00,965 INFO L226 Difference]: Without dead ends: 49 [2018-12-08 19:33:00,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:33:00,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-08 19:33:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-12-08 19:33:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-08 19:33:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-12-08 19:33:00,989 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 23 [2018-12-08 19:33:00,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:00,990 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-12-08 19:33:00,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:33:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-12-08 19:33:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 19:33:00,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:00,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:33:00,991 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:00,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:00,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1787250273, now seen corresponding path program 1 times [2018-12-08 19:33:00,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:33:00,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:33:00,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:00,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:33:00,992 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:33:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:33:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:33:01,055 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:33:01,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:33:01 BoogieIcfgContainer [2018-12-08 19:33:01,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:33:01,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:33:01,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:33:01,079 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:33:01,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:00" (3/4) ... [2018-12-08 19:33:01,082 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:33:01,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:33:01,082 INFO L168 Benchmark]: Toolchain (without parser) took 740.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -102.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,083 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:33:01,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.49 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,084 INFO L168 Benchmark]: Boogie Preprocessor took 20.10 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,085 INFO L168 Benchmark]: RCFGBuilder took 205.49 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,085 INFO L168 Benchmark]: TraceAbstraction took 306.01 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:01,085 INFO L168 Benchmark]: Witness Printer took 2.82 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. [2018-12-08 19:33:01,087 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.49 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.10 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 205.49 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.01 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10737418259, \old(Lg2_log)=10737418260, \old(Lg3_log)=10737418242, \old(Lg4_log)=10737418246, \old(Lg5_log)=10737418249, \old(Lg6_log)=10737418257, \old(Lg7_log)=10737418256, \old(ln2_hi_log)=10737418244, \old(ln2_lo_log)=10737418251, \old(two25_log)=10737418255, \old(zero_log)=10737418253, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] CALL, EXPR isfinite_float(x) VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L115] __int32_t ix; VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return (((ix) < 0x7f800000L)); VAL [\old(x)=10737418247, \result=1, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L134] RET, EXPR isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L136] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=10737418247, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [\old(x)=10737418247, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [\old(x)=10737418247, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L136] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418247, zero_log=0] [L136] float res = __ieee754_logf(x); [L139] CALL, EXPR isnan_float(res) VAL [\old(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] return x != x; VAL [\old(x)=10737418248, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418248, zero_log=0] [L139] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418247, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418247, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 60 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 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 0.1.23-635dfa2 [2018-12-08 19:33:02,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:33:02,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:33:02,411 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:33:02,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:33:02,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:33:02,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:33:02,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:33:02,414 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:33:02,415 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:33:02,415 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:33:02,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:33:02,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:33:02,416 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:33:02,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:33:02,417 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:33:02,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:33:02,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:33:02,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:33:02,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:33:02,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:33:02,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:33:02,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:33:02,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:33:02,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:33:02,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:33:02,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:33:02,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:33:02,426 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:33:02,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:33:02,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:33:02,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:33:02,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:33:02,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:33:02,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:33:02,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:33:02,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 19:33:02,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:33:02,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:33:02,439 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:33:02,439 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:33:02,439 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:33:02,439 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:33:02,439 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:33:02,439 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:33:02,440 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:33:02,440 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:33:02,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:33:02,440 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:33:02,441 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:33:02,442 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:33:02,442 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:33:02,442 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:33:02,442 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:33:02,442 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:33:02,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:33:02,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:33:02,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:33:02,444 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:33:02,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:33:02,444 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:33:02,444 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 19:33:02,444 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_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2018-12-08 19:33:02,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:33:02,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:33:02,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:33:02,477 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:33:02,478 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:33:02,478 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:33:02,513 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/ad696a4f4/d0384555431e427495ad65ca77082cb2/FLAG87f91d6d0 [2018-12-08 19:33:02,825 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:33:02,825 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/sv-benchmarks/c/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:33:02,831 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/ad696a4f4/d0384555431e427495ad65ca77082cb2/FLAG87f91d6d0 [2018-12-08 19:33:02,839 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/data/ad696a4f4/d0384555431e427495ad65ca77082cb2 [2018-12-08 19:33:02,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:33:02,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:33:02,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:33:02,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:33:02,846 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:33:02,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:33:02" (1/1) ... [2018-12-08 19:33:02,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:02, skipping insertion in model container [2018-12-08 19:33:02,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:33:02" (1/1) ... [2018-12-08 19:33:02,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:33:02,872 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:33:02,984 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:33:02,988 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:33:03,017 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:33:03,033 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:33:03,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03 WrapperNode [2018-12-08 19:33:03,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:33:03,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:33:03,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:33:03,034 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:33:03,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:33:03,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:33:03,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:33:03,080 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:33:03,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... [2018-12-08 19:33:03,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:33:03,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:33:03,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:33:03,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:33:03,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-12-08 19:33:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-12-08 19:33:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:33:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 19:33:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:33:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-08 19:33:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 19:33:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:33:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:33:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 19:33:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 19:33:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 19:33:03,255 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:33:05,346 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:33:14,903 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 19:33:14,923 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:33:14,924 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 19:33:14,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:14 BoogieIcfgContainer [2018-12-08 19:33:14,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:33:14,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:33:14,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:33:14,926 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:33:14,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:33:02" (1/3) ... [2018-12-08 19:33:14,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387acf9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:33:14, skipping insertion in model container [2018-12-08 19:33:14,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:33:03" (2/3) ... [2018-12-08 19:33:14,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387acf9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:33:14, skipping insertion in model container [2018-12-08 19:33:14,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:14" (3/3) ... [2018-12-08 19:33:14,928 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-12-08 19:33:14,934 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:33:14,938 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:33:14,947 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:33:14,963 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:33:14,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:33:14,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:33:14,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:33:14,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:33:14,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:33:14,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:33:14,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:33:14,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:33:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-12-08 19:33:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 19:33:14,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:14,977 INFO L402 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] [2018-12-08 19:33:14,979 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:14,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:14,982 INFO L82 PathProgramCache]: Analyzing trace with hash -910802300, now seen corresponding path program 1 times [2018-12-08 19:33:14,984 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:33:14,984 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:14,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:15,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:33:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:15,194 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:33:15,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:15,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 19:33:15,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 19:33:15,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 19:33:15,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 19:33:15,221 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-12-08 19:33:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:15,237 INFO L93 Difference]: Finished difference Result 97 states and 139 transitions. [2018-12-08 19:33:15,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 19:33:15,238 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 19:33:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:15,245 INFO L225 Difference]: With dead ends: 97 [2018-12-08 19:33:15,245 INFO L226 Difference]: Without dead ends: 48 [2018-12-08 19:33:15,247 INFO L631 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 [2018-12-08 19:33:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-08 19:33:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-08 19:33:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-08 19:33:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-12-08 19:33:15,270 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 22 [2018-12-08 19:33:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:15,270 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-12-08 19:33:15,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 19:33:15,270 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-12-08 19:33:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 19:33:15,271 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:15,271 INFO L402 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] [2018-12-08 19:33:15,271 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:15,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:15,272 INFO L82 PathProgramCache]: Analyzing trace with hash -2100796160, now seen corresponding path program 1 times [2018-12-08 19:33:15,272 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:33:15,272 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:15,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:15,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:33:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:15,467 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:33:15,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:15,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:33:15,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:33:15,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:33:15,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:33:15,478 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 3 states. [2018-12-08 19:33:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:15,490 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2018-12-08 19:33:15,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:33:15,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-12-08 19:33:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:15,491 INFO L225 Difference]: With dead ends: 81 [2018-12-08 19:33:15,491 INFO L226 Difference]: Without dead ends: 48 [2018-12-08 19:33:15,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:33:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-08 19:33:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-08 19:33:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-08 19:33:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-12-08 19:33:15,496 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 23 [2018-12-08 19:33:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:15,496 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-12-08 19:33:15,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:33:15,496 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-12-08 19:33:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 19:33:15,497 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:15,497 INFO L402 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] [2018-12-08 19:33:15,497 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:15,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:15,497 INFO L82 PathProgramCache]: Analyzing trace with hash 687628896, now seen corresponding path program 1 times [2018-12-08 19:33:15,497 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:33:15,497 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:15,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:15,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:33:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:15,781 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:33:15,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:15,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 19:33:15,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 19:33:15,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 19:33:15,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 19:33:15,794 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 7 states. [2018-12-08 19:33:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:19,173 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2018-12-08 19:33:19,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 19:33:19,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-12-08 19:33:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:19,176 INFO L225 Difference]: With dead ends: 62 [2018-12-08 19:33:19,176 INFO L226 Difference]: Without dead ends: 52 [2018-12-08 19:33:19,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-08 19:33:19,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-08 19:33:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-12-08 19:33:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-08 19:33:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-12-08 19:33:19,182 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 31 [2018-12-08 19:33:19,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:19,182 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-12-08 19:33:19,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 19:33:19,182 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-12-08 19:33:19,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 19:33:19,183 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:19,183 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:33:19,183 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:19,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:19,183 INFO L82 PathProgramCache]: Analyzing trace with hash -586401658, now seen corresponding path program 1 times [2018-12-08 19:33:19,184 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:33:19,184 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:19,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:19,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:33:19,836 WARN L180 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 19:33:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:20,210 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:33:20,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:20,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 19:33:20,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 19:33:20,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 19:33:20,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 19:33:20,224 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 8 states. [2018-12-08 19:33:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:35,075 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-12-08 19:33:35,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 19:33:35,076 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-12-08 19:33:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:35,077 INFO L225 Difference]: With dead ends: 55 [2018-12-08 19:33:35,077 INFO L226 Difference]: Without dead ends: 48 [2018-12-08 19:33:35,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-12-08 19:33:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-08 19:33:35,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-08 19:33:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-08 19:33:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-08 19:33:35,083 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 32 [2018-12-08 19:33:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:35,083 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-08 19:33:35,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 19:33:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-08 19:33:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-08 19:33:35,084 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:33:35,084 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:33:35,084 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:33:35,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:33:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash 2082270108, now seen corresponding path program 1 times [2018-12-08 19:33:35,085 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:33:35,085 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/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 [2018-12-08 19:33:35,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:33:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:33:35,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:33:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:33:35,213 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:33:35,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:33:35,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 19:33:35,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 19:33:35,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 19:33:35,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 19:33:35,221 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-12-08 19:33:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:33:38,315 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-12-08 19:33:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 19:33:38,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-08 19:33:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:33:38,316 INFO L225 Difference]: With dead ends: 52 [2018-12-08 19:33:38,317 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 19:33:38,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-12-08 19:33:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 19:33:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 19:33:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 19:33:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 19:33:38,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-08 19:33:38,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:33:38,318 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 19:33:38,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 19:33:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 19:33:38,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 19:33:38,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 19:33:38,515 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L448 ceAbstractionStarter]: For program point isfinite_floatFINAL(lines 114 123) no Hoare annotation was computed. [2018-12-08 19:33:38,626 INFO L451 ceAbstractionStarter]: At program point L116-2(lines 116 120) the Hoare annotation is: true [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L451 ceAbstractionStarter]: At program point isfinite_floatENTRY(lines 114 123) the Hoare annotation is: true [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point isfinite_floatEXIT(lines 114 123) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-12-08 19:33:38,627 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-12-08 19:33:38,628 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-12-08 19:33:38,628 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-12-08 19:33:38,629 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point L134-6(lines 134 143) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 125 146) the Hoare annotation is: true [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 125 146) no Hoare annotation was computed. [2018-12-08 19:33:38,629 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 125 146) no Hoare annotation was computed. [2018-12-08 19:33:38,630 INFO L448 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-12-08 19:33:38,630 INFO L444 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (exists ((__ieee754_logf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven __ieee754_logf_~x __ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))))) [2018-12-08 19:33:38,630 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 142) no Hoare annotation was computed. [2018-12-08 19:33:38,630 INFO L444 ceAbstractionStarter]: At program point L136(line 136) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2018-12-08 19:33:38,630 INFO L448 ceAbstractionStarter]: For program point L136-1(line 136) no Hoare annotation was computed. [2018-12-08 19:33:38,630 INFO L448 ceAbstractionStarter]: For program point L134(line 134) no Hoare annotation was computed. [2018-12-08 19:33:38,630 INFO L444 ceAbstractionStarter]: At program point L134-1(line 134) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (fp.lt main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) |main_#t~short12|)) [2018-12-08 19:33:38,631 INFO L448 ceAbstractionStarter]: For program point L134-2(line 134) no Hoare annotation was computed. [2018-12-08 19:33:38,631 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2018-12-08 19:33:38,631 INFO L448 ceAbstractionStarter]: For program point L134-4(lines 134 143) no Hoare annotation was computed. [2018-12-08 19:33:38,638 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,642 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,643 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,643 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,643 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,644 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,644 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,645 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,646 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:33:38 BoogieIcfgContainer [2018-12-08 19:33:38,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:33:38,648 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:33:38,648 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:33:38,648 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:33:38,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:33:14" (3/4) ... [2018-12-08 19:33:38,650 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 19:33:38,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-08 19:33:38,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 19:33:38,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_float [2018-12-08 19:33:38,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-08 19:33:38,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 19:33:38,658 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-08 19:33:38,658 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 19:33:38,659 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 19:33:38,659 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 19:33:38,675 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-12-08 19:33:38,675 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-12-08 19:33:38,676 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-12-08 19:33:38,695 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_05d6977d-2dd1-4d95-9dc2-5d9a424e780f/bin-2019/utaipan/witness.graphml [2018-12-08 19:33:38,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:33:38,696 INFO L168 Benchmark]: Toolchain (without parser) took 35854.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.4 MB in the beginning and 884.8 MB in the end (delta: 58.6 MB). Peak memory consumption was 191.3 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,696 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:33:38,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,697 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 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. [2018-12-08 19:33:38,697 INFO L168 Benchmark]: RCFGBuilder took 11819.17 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,697 INFO L168 Benchmark]: TraceAbstraction took 23723.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.6 MB in the end (delta: 195.6 MB). Peak memory consumption was 195.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,697 INFO L168 Benchmark]: Witness Printer took 47.49 ms. Allocated memory is still 1.2 GB. Free memory was 891.6 MB in the beginning and 884.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:33:38,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 45.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 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. * RCFGBuilder took 11819.17 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23723.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.6 MB in the end (delta: 195.6 MB). Peak memory consumption was 195.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.49 ms. Allocated memory is still 1.2 GB. Free memory was 891.6 MB in the beginning and 884.8 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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: 61]: Loop Invariant [2018-12-08 19:33:38,702 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,703 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,703 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,703 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,703 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,703 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2018-12-08 19:33:38,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,704 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-08 19:33:38,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 53 locations, 1 error locations. SAFE Result, 23.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 21.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 260 SDtfs, 98 SDslu, 641 SDs, 0 SdLazy, 166 SolverSat, 12 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 19.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 26 PreInvPairs, 33 NumberOfFragments, 127 HoareAnnotationTreeSize, 26 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 88 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 136 ConstructedInterpolants, 9 QuantifiedInterpolants, 15322 SizeOfPredicates, 12 NumberOfNonLiveVariables, 518 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...