./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0981_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_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 a7a942aef31d674fbc5ba5c6ed676ac24f2343b7 ..................................................................................................................................................................................................................................................................................................................................... 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_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 a7a942aef31d674fbc5ba5c6ed676ac24f2343b7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:18:35,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:18:35,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:18:35,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:18:35,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:18:35,475 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:18:35,476 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:18:35,477 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:18:35,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:18:35,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:18:35,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:18:35,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:18:35,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:18:35,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:18:35,480 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:18:35,480 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:18:35,481 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:18:35,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:18:35,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:18:35,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:18:35,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:18:35,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:18:35,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:18:35,486 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:18:35,486 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:18:35,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:18:35,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:18:35,487 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:18:35,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:18:35,488 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:18:35,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:18:35,489 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:18:35,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:18:35,489 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:18:35,489 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:18:35,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:18:35,490 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-01 22:18:35,497 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:18:35,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:18:35,497 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:18:35,498 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-01 22:18:35,498 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:18:35,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:18:35,499 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:18:35,499 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:18:35,499 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:18:35,499 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:18:35,500 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:18:35,500 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:18:35,501 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:18:35,501 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:18:35,502 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-01 22:18:35,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:18:35,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:18:35,502 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-01 22:18:35,502 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_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 -> a7a942aef31d674fbc5ba5c6ed676ac24f2343b7 [2018-12-01 22:18:35,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:18:35,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:18:35,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:18:35,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:18:35,535 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:18:35,536 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:35,572 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/956efa935/3a62a9cd0a2d43c5b2fedf3c0628f123/FLAG2476b508f [2018-12-01 22:18:35,956 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:18:35,957 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:35,961 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/956efa935/3a62a9cd0a2d43c5b2fedf3c0628f123/FLAG2476b508f [2018-12-01 22:18:35,969 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/956efa935/3a62a9cd0a2d43c5b2fedf3c0628f123 [2018-12-01 22:18:35,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:18:35,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:18:35,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:18:35,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:18:35,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:18:35,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:18:35" (1/1) ... [2018-12-01 22:18:35,977 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 01.12 10:18:35, skipping insertion in model container [2018-12-01 22:18:35,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:18:35" (1/1) ... [2018-12-01 22:18:35,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:18:35,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:18:36,098 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:18:36,100 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:18:36,124 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:18:36,167 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:18:36,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36 WrapperNode [2018-12-01 22:18:36,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:18:36,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:18:36,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:18:36,168 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:18:36,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:18:36,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:18:36,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:18:36,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:18:36,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... [2018-12-01 22:18:36,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:18:36,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:18:36,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:18:36,209 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:18:36,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:18:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-01 22:18:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:18:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:18:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-01 22:18:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-01 22:18:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-12-01 22:18:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-12-01 22:18:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:18:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:18:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 22:18:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:18:36,469 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:18:36,469 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-12-01 22:18:36,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:36 BoogieIcfgContainer [2018-12-01 22:18:36,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:18:36,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:18:36,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:18:36,472 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:18:36,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:18:35" (1/3) ... [2018-12-01 22:18:36,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c018f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:18:36, skipping insertion in model container [2018-12-01 22:18:36,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:36" (2/3) ... [2018-12-01 22:18:36,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c018f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:18:36, skipping insertion in model container [2018-12-01 22:18:36,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:36" (3/3) ... [2018-12-01 22:18:36,475 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:36,483 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:18:36,488 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:18:36,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:18:36,515 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:18:36,515 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:18:36,515 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:18:36,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:18:36,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:18:36,516 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:18:36,516 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:18:36,516 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:18:36,526 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-12-01 22:18:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 22:18:36,531 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:36,531 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] [2018-12-01 22:18:36,533 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:36,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:36,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1623804891, now seen corresponding path program 1 times [2018-12-01 22:18:36,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:18:36,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:18:36,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:36,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:18:36,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:18:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:36,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:36,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:18:36,636 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:18:36,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:18:36,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:18:36,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:18:36,648 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 2 states. [2018-12-01 22:18:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:36,664 INFO L93 Difference]: Finished difference Result 118 states and 178 transitions. [2018-12-01 22:18:36,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:18:36,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-01 22:18:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:36,670 INFO L225 Difference]: With dead ends: 118 [2018-12-01 22:18:36,670 INFO L226 Difference]: Without dead ends: 59 [2018-12-01 22:18:36,672 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:18:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-12-01 22:18:36,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-12-01 22:18:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-01 22:18:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-12-01 22:18:36,702 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 23 [2018-12-01 22:18:36,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:36,702 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-12-01 22:18:36,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:18:36,702 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-12-01 22:18:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 22:18:36,703 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:36,703 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] [2018-12-01 22:18:36,703 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:36,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:36,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1366088645, now seen corresponding path program 1 times [2018-12-01 22:18:36,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:18:36,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:18:36,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:36,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:18:36,705 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:18:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:18:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:18:36,776 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 22:18:36,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:18:36 BoogieIcfgContainer [2018-12-01 22:18:36,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:18:36,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:18:36,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:18:36,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:18:36,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:36" (3/4) ... [2018-12-01 22:18:36,808 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 22:18:36,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:18:36,808 INFO L168 Benchmark]: Toolchain (without parser) took 837.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -77.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,809 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:18:36,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,810 INFO L168 Benchmark]: Boogie Preprocessor took 24.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,811 INFO L168 Benchmark]: RCFGBuilder took 261.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,811 INFO L168 Benchmark]: TraceAbstraction took 334.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:36,811 INFO L168 Benchmark]: Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:18:36,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 261.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 334.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 168]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 116, overapproximation of bitwiseAnd at line 151. Possible FailurePath: [L11-L15] 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; [L17] static const float zero_log = 0.0; [L97-L100] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L102] static const float zero = 0.0; VAL [\old(ivln10_log10)=6442450956, \old(Lg1_log)=6442450953, \old(Lg2_log)=6442450954, \old(Lg3_log)=6442450955, \old(Lg4_log)=6442450958, \old(Lg5_log)=6442450959, \old(Lg6_log)=6442450967, \old(Lg7_log)=6442450964, \old(ln2_hi_log)=6442450945, \old(ln2_lo_log)=6442450948, \old(log10_2hi_log10)=6442450950, \old(log10_2lo_log10)=6442450966, \old(two25_log)=6442450963, \old(two25_log10)=6442450951, \old(zero)=6442450969, \old(zero_log)=6442450949, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L163] float x = 1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L164] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=6442450968, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L105] float y, z; [L106] __int32_t i, k, hx; VAL [\old(x)=6442450968, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] [L109] ieee_float_shape_type gf_u; [L110] gf_u.value = (x) [L111] EXPR gf_u.word [L111] (hx) = gf_u.word [L114] k = 0 VAL [\old(x)=6442450968, hx=2147483647, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] [L115] COND TRUE ((hx & 0x7fffffff) == 0) [L116] return -two25_log10 / zero; VAL [\old(x)=6442450968, hx=2147483647, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] [L164] RET, EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6442450944, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] [L164] float res = __ieee754_log10f(x); [L167] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450944, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] __int32_t ix; VAL [\old(x)=6442450944, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450944, zero=0, zero_log=0] [L147] ieee_float_shape_type gf_u; [L148] gf_u.value = (x) [L149] EXPR gf_u.word [L149] (ix) = gf_u.word [L151] ix &= 0x7fffffff [L152] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450944, \result=0, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450944, zero=0, zero_log=0] [L167] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450944, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] [L167] COND TRUE !isinf_float(res) [L168] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450944, two25_log=33554432, two25_log10=33554432, x=6442450968, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:18:38,172 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:18:38,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:18:38,179 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:18:38,180 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:18:38,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:18:38,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:18:38,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:18:38,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:18:38,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:18:38,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:18:38,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:18:38,184 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:18:38,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:18:38,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:18:38,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:18:38,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:18:38,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:18:38,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:18:38,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:18:38,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:18:38,189 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:18:38,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:18:38,190 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:18:38,190 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:18:38,191 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:18:38,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:18:38,192 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:18:38,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:18:38,193 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:18:38,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:18:38,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:18:38,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:18:38,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:18:38,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:18:38,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:18:38,194 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-01 22:18:38,202 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:18:38,202 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:18:38,202 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:18:38,202 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:18:38,203 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:18:38,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:18:38,203 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:18:38,204 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:18:38,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:18:38,205 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 22:18:38,205 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-01 22:18:38,206 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_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 -> a7a942aef31d674fbc5ba5c6ed676ac24f2343b7 [2018-12-01 22:18:38,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:18:38,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:18:38,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:18:38,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:18:38,234 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:18:38,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:38,267 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/100b85060/338045e76a864dfb99995d7cec5fd6bf/FLAG6bdbe5cde [2018-12-01 22:18:38,701 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:18:38,702 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:38,706 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/100b85060/338045e76a864dfb99995d7cec5fd6bf/FLAG6bdbe5cde [2018-12-01 22:18:38,714 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/data/100b85060/338045e76a864dfb99995d7cec5fd6bf [2018-12-01 22:18:38,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:18:38,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:18:38,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:18:38,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:18:38,719 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:18:38,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,721 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 01.12 10:18:38, skipping insertion in model container [2018-12-01 22:18:38,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:18:38,738 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:18:38,852 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:18:38,856 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:18:38,887 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:18:38,902 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:18:38,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38 WrapperNode [2018-12-01 22:18:38,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:18:38,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:18:38,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:18:38,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:18:38,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:18:38,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:18:38,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:18:38,950 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:18:38,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... [2018-12-01 22:18:38,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:18:38,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:18:38,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:18:38,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:18:38,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:18:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-01 22:18:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:18:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:18:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-01 22:18:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-12-01 22:18:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:18:39,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-01 22:18:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:18:39,106 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:18:41,206 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:18:48,993 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:18:49,071 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:18:50,577 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:18:51,072 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:18:51,073 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-12-01 22:18:51,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:51 BoogieIcfgContainer [2018-12-01 22:18:51,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:18:51,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:18:51,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:18:51,075 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:18:51,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:18:38" (1/3) ... [2018-12-01 22:18:51,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea44b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:18:51, skipping insertion in model container [2018-12-01 22:18:51,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:18:38" (2/3) ... [2018-12-01 22:18:51,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea44b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:18:51, skipping insertion in model container [2018-12-01 22:18:51,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:51" (3/3) ... [2018-12-01 22:18:51,078 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981_true-unreach-call.c [2018-12-01 22:18:51,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:18:51,087 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:18:51,096 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:18:51,112 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 22:18:51,112 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:18:51,112 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:18:51,113 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:18:51,113 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:18:51,113 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:18:51,113 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:18:51,113 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:18:51,113 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:18:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-12-01 22:18:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-01 22:18:51,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:51,126 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] [2018-12-01 22:18:51,128 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:51,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1510744437, now seen corresponding path program 1 times [2018-12-01 22:18:51,133 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:18:51,133 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:51,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:51,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:18:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:51,351 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:18:51,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:51,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:18:51,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:18:51,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:18:51,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:18:51,374 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-12-01 22:18:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:51,392 INFO L93 Difference]: Finished difference Result 116 states and 176 transitions. [2018-12-01 22:18:51,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:18:51,393 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-01 22:18:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:51,400 INFO L225 Difference]: With dead ends: 116 [2018-12-01 22:18:51,400 INFO L226 Difference]: Without dead ends: 58 [2018-12-01 22:18:51,402 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 [2018-12-01 22:18:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-01 22:18:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-12-01 22:18:51,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-01 22:18:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2018-12-01 22:18:51,430 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 22 [2018-12-01 22:18:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:51,430 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2018-12-01 22:18:51,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:18:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2018-12-01 22:18:51,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 22:18:51,431 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:51,432 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] [2018-12-01 22:18:51,432 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:51,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash 615057415, now seen corresponding path program 1 times [2018-12-01 22:18:51,433 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:18:51,433 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:51,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:51,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:18:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:51,705 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:18:51,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:51,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 22:18:51,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:18:51,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:18:51,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 22:18:51,716 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 6 states. [2018-12-01 22:18:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:52,889 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2018-12-01 22:18:52,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 22:18:52,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-01 22:18:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:52,892 INFO L225 Difference]: With dead ends: 75 [2018-12-01 22:18:52,892 INFO L226 Difference]: Without dead ends: 62 [2018-12-01 22:18:52,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:18:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-12-01 22:18:52,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2018-12-01 22:18:52,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-01 22:18:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2018-12-01 22:18:52,897 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 24 [2018-12-01 22:18:52,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:52,898 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2018-12-01 22:18:52,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:18:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2018-12-01 22:18:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 22:18:52,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:52,898 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] [2018-12-01 22:18:52,898 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:52,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:52,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1505985488, now seen corresponding path program 1 times [2018-12-01 22:18:52,899 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:18:52,899 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:52,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:53,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:18:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:53,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:18:53,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:53,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 22:18:53,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:18:53,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:18:53,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 22:18:53,155 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 6 states. [2018-12-01 22:18:54,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:54,071 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2018-12-01 22:18:54,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 22:18:54,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-01 22:18:54,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:54,073 INFO L225 Difference]: With dead ends: 75 [2018-12-01 22:18:54,073 INFO L226 Difference]: Without dead ends: 62 [2018-12-01 22:18:54,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:18:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-12-01 22:18:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2018-12-01 22:18:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-01 22:18:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-12-01 22:18:54,077 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 25 [2018-12-01 22:18:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:54,078 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-12-01 22:18:54,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:18:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-12-01 22:18:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-01 22:18:54,078 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:54,079 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] [2018-12-01 22:18:54,079 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:54,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:54,079 INFO L82 PathProgramCache]: Analyzing trace with hash 287549227, now seen corresponding path program 1 times [2018-12-01 22:18:54,079 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:18:54,079 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:54,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:54,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:18:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:54,580 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:18:54,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:54,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-01 22:18:54,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 22:18:54,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 22:18:54,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:18:54,589 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 11 states. [2018-12-01 22:18:55,002 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-01 22:18:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:57,818 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-12-01 22:18:57,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 22:18:57,818 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-01 22:18:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:57,819 INFO L225 Difference]: With dead ends: 67 [2018-12-01 22:18:57,819 INFO L226 Difference]: Without dead ends: 60 [2018-12-01 22:18:57,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-01 22:18:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-01 22:18:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-12-01 22:18:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-01 22:18:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-12-01 22:18:57,825 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 26 [2018-12-01 22:18:57,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:57,825 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-12-01 22:18:57,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 22:18:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-12-01 22:18:57,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-01 22:18:57,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:18:57,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:18:57,826 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:18:57,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:18:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2000909638, now seen corresponding path program 1 times [2018-12-01 22:18:57,826 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:18:57,826 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/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 [2018-12-01 22:18:57,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:18:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:18:58,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:18:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:18:58,275 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:18:58,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:18:58,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 22:18:58,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:18:58,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:18:58,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 22:18:58,286 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 6 states. [2018-12-01 22:18:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:18:58,678 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-12-01 22:18:58,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-01 22:18:58,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-12-01 22:18:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:18:58,679 INFO L225 Difference]: With dead ends: 60 [2018-12-01 22:18:58,680 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:18:58,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-01 22:18:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:18:58,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:18:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:18:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:18:58,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-12-01 22:18:58,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:18:58,681 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:18:58,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:18:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:18:58,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:18:58,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 22:18:58,760 INFO L448 ceAbstractionStarter]: For program point L146-1(lines 146 150) no Hoare annotation was computed. [2018-12-01 22:18:58,760 INFO L444 ceAbstractionStarter]: At program point L146-2(lines 146 150) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-01 22:18:58,760 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 144 153) the Hoare annotation is: true [2018-12-01 22:18:58,760 INFO L448 ceAbstractionStarter]: For program point L146-3(lines 146 150) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 144 153) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 144 153) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 63) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L451 ceAbstractionStarter]: At program point L23-2(lines 23 27) the Hoare annotation is: true [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L451 ceAbstractionStarter]: At program point L48-2(lines 48 52) the Hoare annotation is: true [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 44) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2018-12-01 22:18:58,761 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 70) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 19 95) the Hoare annotation is: true [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 93) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 19 95) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 94) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 19 95) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 71) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 88) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 39 43) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L451 ceAbstractionStarter]: At program point L39-2(lines 39 43) the Hoare annotation is: true [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-01 22:18:58,762 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 120) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 116) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L451 ceAbstractionStarter]: At program point __ieee754_log10fENTRY(lines 104 141) the Hoare annotation is: true [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point __ieee754_log10fEXIT(lines 104 141) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L444 ceAbstractionStarter]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (bvslt __ieee754_log10f_~hx~0 (_ bv2139095040 32)))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|)) [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point __ieee754_log10fFINAL(lines 104 141) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 108 112) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L444 ceAbstractionStarter]: At program point L108-2(lines 108 112) the Hoare annotation is: (= |__ieee754_log10f_#in~x| __ieee754_log10f_~x) [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L108-3(lines 108 112) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 129) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 118) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L448 ceAbstractionStarter]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2018-12-01 22:18:58,763 INFO L444 ceAbstractionStarter]: At program point L134-2(lines 134 138) the Hoare annotation is: (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (bvslt __ieee754_log10f_~hx~0 (_ bv2139095040 32)))) [2018-12-01 22:18:58,764 INFO L444 ceAbstractionStarter]: At program point L134-3(lines 134 138) the Hoare annotation is: (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (bvslt __ieee754_log10f_~hx~0 (_ bv2139095040 32)))) [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 22:18:58,764 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 155 172) the Hoare annotation is: true [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 155 172) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 155 172) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point L168(line 168) no Hoare annotation was computed. [2018-12-01 22:18:58,764 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-01 22:18:58,764 INFO L448 ceAbstractionStarter]: For program point L167-1(lines 167 170) no Hoare annotation was computed. [2018-12-01 22:18:58,765 INFO L444 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-12-01 22:18:58,765 INFO L448 ceAbstractionStarter]: For program point L164-1(line 164) no Hoare annotation was computed. [2018-12-01 22:18:58,769 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,769 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,769 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,773 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,773 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,773 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,773 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,774 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,774 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,774 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,774 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:18:58 BoogieIcfgContainer [2018-12-01 22:18:58,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:18:58,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:18:58,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:18:58,777 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:18:58,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:18:51" (3/4) ... [2018-12-01 22:18:58,779 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:18:58,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-01 22:18:58,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 22:18:58,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-01 22:18:58,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-12-01 22:18:58,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 22:18:58,788 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2018-12-01 22:18:58,788 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-01 22:18:58,788 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 22:18:58,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 22:18:58,805 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-01 22:18:58,805 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-01 22:18:58,805 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_log10f_~hx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x) && ~bvslt32(__ieee754_log10f_~hx~0, 2139095040bv32)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) [2018-12-01 22:18:58,805 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_log10f_~hx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x) && ~bvslt32(__ieee754_log10f_~hx~0, 2139095040bv32)) [2018-12-01 22:18:58,824 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23eedc59-40ff-487b-8dcd-c46a23bedc1a/bin-2019/utaipan/witness.graphml [2018-12-01 22:18:58,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:18:58,825 INFO L168 Benchmark]: Toolchain (without parser) took 20109.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.7 MB in the beginning and 886.2 MB in the end (delta: 58.5 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,826 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-01 22:18:58,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.64 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,826 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 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. [2018-12-01 22:18:58,826 INFO L168 Benchmark]: RCFGBuilder took 12091.32 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,827 INFO L168 Benchmark]: TraceAbstraction took 7702.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.9 MB in the end (delta: 197.7 MB). Peak memory consumption was 197.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,827 INFO L168 Benchmark]: Witness Printer took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 892.9 MB in the beginning and 886.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:18:58,828 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.64 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.89 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 12091.32 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7702.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 892.9 MB in the end (delta: 197.7 MB). Peak memory consumption was 197.7 MB. Max. memory is 11.5 GB. * Witness Printer took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 892.9 MB in the beginning and 886.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 168]: 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: 48]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 134]: Loop Invariant [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_log10f_~hx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x) && ~bvslt32(__ieee754_log10f_~hx~0, 2139095040bv32)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 124]: Loop Invariant [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-12-01 22:18:58,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_log10f_~hx~0 : bv32 :: ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x) && ~bvslt32(__ieee754_log10f_~hx~0, 2139095040bv32)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 62 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 311 SDtfs, 67 SDslu, 1165 SDs, 0 SdLazy, 202 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 29 PreInvPairs, 39 NumberOfFragments, 101 HoareAnnotationTreeSize, 29 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 131 ConstructedInterpolants, 14 QuantifiedInterpolants, 16761 SizeOfPredicates, 14 NumberOfNonLiveVariables, 613 ConjunctsInSsa, 37 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...