./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/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_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/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_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/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_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/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 0.1.23-5842f4b [2018-11-18 17:05:35,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:05:35,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:05:35,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:05:35,383 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:05:35,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:05:35,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:05:35,386 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:05:35,387 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:05:35,388 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:05:35,388 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:05:35,389 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:05:35,389 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:05:35,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:05:35,391 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:05:35,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:05:35,392 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:05:35,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:05:35,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:05:35,396 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:05:35,397 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:05:35,398 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:05:35,399 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:05:35,400 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:05:35,400 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:05:35,401 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:05:35,401 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:05:35,402 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:05:35,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:05:35,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:05:35,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:05:35,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:05:35,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:05:35,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:05:35,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:05:35,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:05:35,406 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:05:35,417 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:05:35,417 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:05:35,418 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:05:35,418 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:05:35,418 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:05:35,418 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:05:35,419 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:05:35,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:05:35,420 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:05:35,420 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:05:35,420 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:05:35,420 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:05:35,421 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:05:35,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:05:35,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:05:35,422 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:05:35,423 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:05:35,423 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:05:35,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:05:35,423 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:05:35,423 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_db066b3e-97db-4816-9638-8921847a433c/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 [2018-11-18 17:05:35,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:05:35,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:05:35,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:05:35,458 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:05:35,458 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:05:35,459 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:35,499 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/ae0535249/47f2638119ba4b4b8e77ff596bf29235/FLAGc59f8fcaa [2018-11-18 17:05:35,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:05:35,844 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:35,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/ae0535249/47f2638119ba4b4b8e77ff596bf29235/FLAGc59f8fcaa [2018-11-18 17:05:36,262 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/ae0535249/47f2638119ba4b4b8e77ff596bf29235 [2018-11-18 17:05:36,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:05:36,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:05:36,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:36,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:05:36,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:05:36,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36, skipping insertion in model container [2018-11-18 17:05:36,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:05:36,302 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:05:36,462 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:36,466 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:05:36,493 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:36,506 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:05:36,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36 WrapperNode [2018-11-18 17:05:36,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:36,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:36,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:05:36,507 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:05:36,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:36,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:05:36,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:05:36,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:05:36,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... [2018-11-18 17:05:36,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:05:36,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:05:36,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:05:36,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:05:36,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:05:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:05:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:05:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 17:05:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:05:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 17:05:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 17:05:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:05:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:05:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 17:05:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-18 17:05:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:05:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:05:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:05:36,986 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:05:36,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:36 BoogieIcfgContainer [2018-11-18 17:05:36,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:05:36,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:05:36,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:05:36,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:05:36,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:05:36" (1/3) ... [2018-11-18 17:05:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aeda4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:36, skipping insertion in model container [2018-11-18 17:05:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:36" (2/3) ... [2018-11-18 17:05:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aeda4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:36, skipping insertion in model container [2018-11-18 17:05:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:36" (3/3) ... [2018-11-18 17:05:36,993 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:37,001 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:05:37,007 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:05:37,018 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:05:37,037 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:05:37,037 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:05:37,037 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:05:37,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:05:37,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:05:37,038 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:05:37,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:05:37,038 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:05:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-11-18 17:05:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 17:05:37,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:37,053 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:37,055 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:37,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:37,059 INFO L82 PathProgramCache]: Analyzing trace with hash 421105860, now seen corresponding path program 1 times [2018-11-18 17:05:37,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:37,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:37,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:37,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:37,090 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:37,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:37,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:05:37,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:05:37,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:05:37,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:05:37,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:05:37,184 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 2 states. [2018-11-18 17:05:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:37,203 INFO L93 Difference]: Finished difference Result 118 states and 178 transitions. [2018-11-18 17:05:37,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:05:37,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 17:05:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:37,211 INFO L225 Difference]: With dead ends: 118 [2018-11-18 17:05:37,211 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 17:05:37,215 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:05:37,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 17:05:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-11-18 17:05:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-18 17:05:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-11-18 17:05:37,242 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 23 [2018-11-18 17:05:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:37,242 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-11-18 17:05:37,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:05:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-11-18 17:05:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:05:37,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:37,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:37,244 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:37,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1288905688, now seen corresponding path program 1 times [2018-11-18 17:05:37,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:05:37,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:37,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:37,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:05:37,246 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:05:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:05:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:05:37,327 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:05:37,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:05:37 BoogieIcfgContainer [2018-11-18 17:05:37,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:05:37,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:05:37,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:05:37,363 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:05:37,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:36" (3/4) ... [2018-11-18 17:05:37,366 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:05:37,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:05:37,367 INFO L168 Benchmark]: Toolchain (without parser) took 1101.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.9 MB). Free memory was 958.0 MB in the beginning and 1.2 GB in the end (delta: -202.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:37,368 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:05:37,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 941.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:37,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 25.7 MB). Free memory was 941.9 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:37,369 INFO L168 Benchmark]: Boogie Preprocessor took 37.80 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. [2018-11-18 17:05:37,369 INFO L168 Benchmark]: RCFGBuilder took 405.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 210.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:37,370 INFO L168 Benchmark]: TraceAbstraction took 375.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:37,370 INFO L168 Benchmark]: Witness Printer took 3.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:05:37,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 941.9 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 35.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 25.7 MB). Free memory was 941.9 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.80 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. * RCFGBuilder took 405.85 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 210.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -192.1 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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)=8, \old(Lg1_log)=27, \old(Lg2_log)=29, \old(Lg3_log)=7, \old(Lg4_log)=11, \old(Lg5_log)=12, \old(Lg6_log)=24, \old(Lg7_log)=20, \old(ln2_hi_log)=10, \old(ln2_lo_log)=15, \old(log10_2hi_log10)=18, \old(log10_2lo_log10)=23, \old(two25_log)=19, \old(two25_log10)=22, \old(zero)=28, \old(zero_log)=17, 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)=26, 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)=26, 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=26, zero=0, zero_log=0] [L109] FCALL ieee_float_shape_type gf_u; [L110] FCALL gf_u.value = (x) [L111] EXPR, FCALL gf_u.word [L111] (hx) = gf_u.word [L112] COND FALSE !(0) VAL [\old(x)=26, hx=5, 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=26, zero=0, zero_log=0] [L114] k = 0 VAL [\old(x)=26, hx=5, 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=26, zero=0, zero_log=0] [L115] COND TRUE ((hx & 0x7fffffff) == 0) [L116] RET return -two25_log10 / zero; VAL [\old(x)=26, hx=5, 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=26, zero=0, zero_log=0] [L164] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6, 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=26, zero=0, zero_log=0] [L164] float res = __ieee754_log10f(x); [L167] CALL, EXPR isinf_float(res) VAL [\old(x)=6, 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)=6, 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=6, zero=0, zero_log=0] [L147] FCALL ieee_float_shape_type gf_u; [L148] FCALL gf_u.value = (x) [L149] EXPR, FCALL gf_u.word [L149] (ix) = gf_u.word [L150] COND FALSE !(0) VAL [\old(x)=6, ivln10_log10=43429449201/100000000000, ix=2, 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=6, zero=0, zero_log=0] [L151] ix &= 0x7fffffff [L152] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6, \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=6, zero=0, zero_log=0] [L167] 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=6, two25_log=33554432, two25_log10=33554432, x=26, 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=6, two25_log=33554432, two25_log10=33554432, x=26, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 1 error locations. UNSAFE Result, 0.3s 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 0.1.23-5842f4b [2018-11-18 17:05:38,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:05:38,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:05:38,803 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:05:38,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:05:38,804 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:05:38,805 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:05:38,806 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:05:38,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:05:38,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:05:38,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:05:38,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:05:38,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:05:38,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:05:38,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:05:38,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:05:38,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:05:38,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:05:38,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:05:38,815 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:05:38,816 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:05:38,817 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:05:38,818 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:05:38,819 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:05:38,819 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:05:38,819 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:05:38,820 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:05:38,820 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:05:38,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:05:38,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:05:38,822 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:05:38,822 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:05:38,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:05:38,823 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:05:38,823 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:05:38,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:05:38,824 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:05:38,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:05:38,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:05:38,835 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:05:38,835 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:05:38,835 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:05:38,835 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:05:38,835 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:05:38,835 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:05:38,835 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:05:38,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:05:38,836 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:05:38,836 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:05:38,836 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:05:38,836 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:05:38,837 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:05:38,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:05:38,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:05:38,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:05:38,839 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:05:38,839 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_db066b3e-97db-4816-9638-8921847a433c/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 [2018-11-18 17:05:38,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:05:38,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:05:38,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:05:38,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:05:38,882 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:05:38,882 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:38,918 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/bfe28e625/ebb3a9fbf09a47dca26a12d070c89684/FLAG40596c01a [2018-11-18 17:05:39,322 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:05:39,323 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/sv-benchmarks/c/float-newlib/float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:39,328 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/bfe28e625/ebb3a9fbf09a47dca26a12d070c89684/FLAG40596c01a [2018-11-18 17:05:39,338 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/data/bfe28e625/ebb3a9fbf09a47dca26a12d070c89684 [2018-11-18 17:05:39,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:05:39,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:05:39,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:39,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:05:39,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:05:39,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39, skipping insertion in model container [2018-11-18 17:05:39,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:05:39,373 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:05:39,528 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:39,532 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:05:39,565 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:05:39,581 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:05:39,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39 WrapperNode [2018-11-18 17:05:39,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:05:39,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:39,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:05:39,582 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:05:39,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:05:39,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:05:39,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:05:39,600 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:05:39,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... [2018-11-18 17:05:39,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:05:39,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:05:39,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:05:39,677 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:05:39,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:05:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:05:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 17:05:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:05:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 17:05:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 17:05:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 17:05:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-18 17:05:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-18 17:05:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:05:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:05:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 17:05:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 17:05:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:05:50,551 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:05:50,900 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:05:51,430 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:05:51,613 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:05:51,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:51 BoogieIcfgContainer [2018-11-18 17:05:51,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:05:51,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:05:51,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:05:51,616 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:05:51,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:05:39" (1/3) ... [2018-11-18 17:05:51,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4cfd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:51, skipping insertion in model container [2018-11-18 17:05:51,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:05:39" (2/3) ... [2018-11-18 17:05:51,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4cfd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:05:51, skipping insertion in model container [2018-11-18 17:05:51,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:51" (3/3) ... [2018-11-18 17:05:51,619 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0981_true-unreach-call.c [2018-11-18 17:05:51,627 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:05:51,637 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:05:51,649 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:05:51,668 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:05:51,669 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:05:51,669 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:05:51,669 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:05:51,669 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:05:51,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:05:51,669 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:05:51,669 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:05:51,669 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:05:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-11-18 17:05:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 17:05:51,683 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:51,684 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:51,685 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:51,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:51,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1576093613, now seen corresponding path program 1 times [2018-11-18 17:05:51,691 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:05:51,692 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 17:05:51,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:51,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:05:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:51,938 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:05:51,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:51,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:05:51,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:05:51,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:05:51,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:05:51,964 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-11-18 17:05:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:51,986 INFO L93 Difference]: Finished difference Result 116 states and 176 transitions. [2018-11-18 17:05:51,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:05:51,987 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 17:05:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:51,992 INFO L225 Difference]: With dead ends: 116 [2018-11-18 17:05:51,992 INFO L226 Difference]: Without dead ends: 58 [2018-11-18 17:05:51,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:05:52,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-18 17:05:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-18 17:05:52,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 17:05:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2018-11-18 17:05:52,026 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 22 [2018-11-18 17:05:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:52,027 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2018-11-18 17:05:52,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:05:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2018-11-18 17:05:52,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 17:05:52,028 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:52,028 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:52,028 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:52,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:52,028 INFO L82 PathProgramCache]: Analyzing trace with hash -856060885, now seen corresponding path program 1 times [2018-11-18 17:05:52,029 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:05:52,029 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 17:05:52,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:52,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:05:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:52,290 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:05:52,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:52,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:05:52,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:05:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:05:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:05:52,301 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 6 states. [2018-11-18 17:05:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:53,486 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2018-11-18 17:05:53,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:05:53,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-18 17:05:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:53,489 INFO L225 Difference]: With dead ends: 75 [2018-11-18 17:05:53,489 INFO L226 Difference]: Without dead ends: 62 [2018-11-18 17:05:53,490 INFO L604 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 [2018-11-18 17:05:53,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-18 17:05:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2018-11-18 17:05:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 17:05:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2018-11-18 17:05:53,497 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 24 [2018-11-18 17:05:53,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:53,497 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2018-11-18 17:05:53,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:05:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2018-11-18 17:05:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:05:53,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:53,498 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:53,498 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:53,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:53,499 INFO L82 PathProgramCache]: Analyzing trace with hash 924706239, now seen corresponding path program 1 times [2018-11-18 17:05:53,499 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:05:53,499 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 17:05:53,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:53,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:05:53,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:53,748 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:05:53,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:53,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:05:53,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:05:53,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:05:53,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:05:53,761 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 6 states. [2018-11-18 17:05:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:54,727 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2018-11-18 17:05:54,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 17:05:54,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 17:05:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:54,729 INFO L225 Difference]: With dead ends: 75 [2018-11-18 17:05:54,729 INFO L226 Difference]: Without dead ends: 62 [2018-11-18 17:05:54,730 INFO L604 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 [2018-11-18 17:05:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-18 17:05:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2018-11-18 17:05:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 17:05:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-11-18 17:05:54,736 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 25 [2018-11-18 17:05:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:54,736 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-11-18 17:05:54,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:05:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-11-18 17:05:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 17:05:54,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:54,737 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:54,737 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:54,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:54,738 INFO L82 PathProgramCache]: Analyzing trace with hash -879699793, now seen corresponding path program 1 times [2018-11-18 17:05:54,738 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:05:54,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 17:05:54,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:54,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:05:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:55,339 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:05:55,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:55,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 17:05:55,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 17:05:55,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 17:05:55,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 17:05:55,347 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 11 states. [2018-11-18 17:05:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:58,796 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-11-18 17:05:58,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 17:05:58,797 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 17:05:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:58,798 INFO L225 Difference]: With dead ends: 67 [2018-11-18 17:05:58,798 INFO L226 Difference]: Without dead ends: 60 [2018-11-18 17:05:58,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:05:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-18 17:05:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-11-18 17:05:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 17:05:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-11-18 17:05:58,805 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 26 [2018-11-18 17:05:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:58,805 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-18 17:05:58,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 17:05:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-11-18 17:05:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 17:05:58,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:05:58,806 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:05:58,806 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:05:58,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:05:58,807 INFO L82 PathProgramCache]: Analyzing trace with hash -220965170, now seen corresponding path program 1 times [2018-11-18 17:05:58,807 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:05:58,807 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 17:05:58,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:05:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:05:59,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:05:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:05:59,264 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:05:59,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:05:59,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 17:05:59,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 17:05:59,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:05:59,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:05:59,275 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 6 states. [2018-11-18 17:05:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:05:59,633 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-11-18 17:05:59,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 17:05:59,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-11-18 17:05:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:05:59,635 INFO L225 Difference]: With dead ends: 60 [2018-11-18 17:05:59,635 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:05:59,635 INFO L604 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 [2018-11-18 17:05:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:05:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:05:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:05:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:05:59,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2018-11-18 17:05:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:05:59,636 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:05:59,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 17:05:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:05:59,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:05:59,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:05:59,725 INFO L425 ceAbstractionStarter]: For program point L146-1(lines 146 150) no Hoare annotation was computed. [2018-11-18 17:05:59,725 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 144 153) the Hoare annotation is: true [2018-11-18 17:05:59,725 INFO L421 ceAbstractionStarter]: At program point L146-3(lines 146 150) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-18 17:05:59,725 INFO L425 ceAbstractionStarter]: For program point L146-4(lines 146 150) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 144 153) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 144 153) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 63) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L428 ceAbstractionStarter]: At program point L23-3(lines 23 27) the Hoare annotation is: true [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point L23-4(lines 23 27) no Hoare annotation was computed. [2018-11-18 17:05:59,726 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L428 ceAbstractionStarter]: At program point L48-3(lines 48 52) the Hoare annotation is: true [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L48-4(lines 48 52) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 44) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 70) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 19 95) the Hoare annotation is: true [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 93) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 19 95) no Hoare annotation was computed. [2018-11-18 17:05:59,727 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 94) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 19 95) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 71) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 88) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 43) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L428 ceAbstractionStarter]: At program point L39-3(lines 39 43) the Hoare annotation is: true [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 17:05:59,728 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 120) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L425 ceAbstractionStarter]: For program point L115(lines 115 116) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L428 ceAbstractionStarter]: At program point __ieee754_log10fENTRY(lines 104 141) the Hoare annotation is: true [2018-11-18 17:05:59,729 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fEXIT(lines 104 141) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L425 ceAbstractionStarter]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fFINAL(lines 104 141) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L421 ceAbstractionStarter]: At program point L124-3(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|)) [2018-11-18 17:05:59,729 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 108 112) no Hoare annotation was computed. [2018-11-18 17:05:59,729 INFO L421 ceAbstractionStarter]: At program point L108-3(lines 108 112) the Hoare annotation is: (= |__ieee754_log10f_#in~x| __ieee754_log10f_~x) [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point L108-4(lines 108 112) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point L121-1(lines 121 129) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point L117(lines 117 118) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L421 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)))) [2018-11-18 17:05:59,730 INFO L421 ceAbstractionStarter]: At program point L134-4(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)))) [2018-11-18 17:05:59,730 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:05:59,730 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:05:59,731 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:05:59,731 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:05:59,731 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 155 172) the Hoare annotation is: true [2018-11-18 17:05:59,731 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 155 172) no Hoare annotation was computed. [2018-11-18 17:05:59,731 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 155 172) no Hoare annotation was computed. [2018-11-18 17:05:59,731 INFO L425 ceAbstractionStarter]: For program point L168(line 168) no Hoare annotation was computed. [2018-11-18 17:05:59,731 INFO L421 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))) [2018-11-18 17:05:59,731 INFO L425 ceAbstractionStarter]: For program point L167-1(lines 167 170) no Hoare annotation was computed. [2018-11-18 17:05:59,731 INFO L421 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))) [2018-11-18 17:05:59,732 INFO L425 ceAbstractionStarter]: For program point L164-1(line 164) no Hoare annotation was computed. [2018-11-18 17:05:59,732 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2018-11-18 17:05:59,741 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,742 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,742 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,742 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,743 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,743 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,743 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,743 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,744 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:05:59 BoogieIcfgContainer [2018-11-18 17:05:59,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:05:59,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:05:59,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:05:59,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:05:59,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:05:51" (3/4) ... [2018-11-18 17:05:59,749 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:05:59,753 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-18 17:05:59,753 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:05:59,754 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-18 17:05:59,754 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-11-18 17:05:59,754 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:05:59,758 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-18 17:05:59,759 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 17:05:59,759 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:05:59,759 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 17:05:59,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 17:05:59,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 17:05:59,775 WARN L220 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) [2018-11-18 17:05:59,775 WARN L220 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)) [2018-11-18 17:05:59,804 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_db066b3e-97db-4816-9638-8921847a433c/bin-2019/utaipan/witness.graphml [2018-11-18 17:05:59,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:05:59,805 INFO L168 Benchmark]: Toolchain (without parser) took 20465.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.7 MB in the beginning and 896.1 MB in the end (delta: 53.6 MB). Peak memory consumption was 201.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,806 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:05:59,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,807 INFO L168 Benchmark]: Boogie Preprocessor took 76.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 928.2 MB in the beginning and 1.1 GB in the end (delta: -208.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,807 INFO L168 Benchmark]: RCFGBuilder took 11936.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,808 INFO L168 Benchmark]: TraceAbstraction took 8132.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 902.7 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,808 INFO L168 Benchmark]: Witness Printer took 57.79 ms. Allocated memory is still 1.2 GB. Free memory was 902.7 MB in the beginning and 896.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:05:59,809 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.24 ms. Allocated memory is still 1.0 GB. Free memory was 933.6 MB in the beginning and 928.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 928.2 MB in the beginning and 1.1 GB in the end (delta: -208.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11936.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8132.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 902.7 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. * Witness Printer took 57.79 ms. Allocated memory is still 1.2 GB. Free memory was 902.7 MB in the beginning and 896.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 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: 146]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 134]: Loop Invariant [2018-11-18 17:05:59,812 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,813 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,814 WARN L387 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 124]: Loop Invariant [2018-11-18 17:05:59,814 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,814 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,814 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,815 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,815 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,815 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,815 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 17:05:59,815 WARN L387 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 62 locations, 1 error locations. SAFE Result, 8.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 311 SDtfs, 67 SDslu, 1165 SDs, 0 SdLazy, 202 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.0s 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, 0.7s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 131 ConstructedInterpolants, 14 QuantifiedInterpolants, 16761 SizeOfPredicates, 14 NumberOfNonLiveVariables, 595 ConjunctsInSsa, 29 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...