./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_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_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ............................................................................................................................................................................................................................................................................................................................... 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_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:06:47,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:06:47,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:06:47,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:06:47,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:06:47,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:06:47,482 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:06:47,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:06:47,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:06:47,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:06:47,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:06:47,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:06:47,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:06:47,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:06:47,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:06:47,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:06:47,488 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:06:47,490 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:06:47,491 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:06:47,492 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:06:47,493 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:06:47,493 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:06:47,495 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:06:47,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:06:47,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:06:47,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:06:47,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:06:47,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:06:47,498 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:06:47,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:06:47,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:06:47,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:06:47,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:06:47,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:06:47,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:06:47,501 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:06:47,501 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:06:47,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:06:47,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:06:47,511 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:06:47,511 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:06:47,511 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:06:47,511 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:06:47,512 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:06:47,513 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:06:47,513 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:06:47,513 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:06:47,513 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:06:47,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:06:47,513 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:06:47,514 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:06:47,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:06:47,515 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:06:47,515 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:06:47,516 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:06:47,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:06:47,516 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:06:47,516 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_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2018-11-18 12:06:47,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:06:47,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:06:47,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:06:47,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:06:47,551 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:06:47,551 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:47,595 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/d3ec3334f/bf651dd14f95422c9d6a244251c5d3c7/FLAG5aade35a7 [2018-11-18 12:06:47,938 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:06:47,938 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:47,942 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/d3ec3334f/bf651dd14f95422c9d6a244251c5d3c7/FLAG5aade35a7 [2018-11-18 12:06:48,370 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/d3ec3334f/bf651dd14f95422c9d6a244251c5d3c7 [2018-11-18 12:06:48,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:06:48,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:06:48,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:48,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:06:48,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:06:48,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f769bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48, skipping insertion in model container [2018-11-18 12:06:48,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:06:48,399 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:06:48,514 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:48,519 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:06:48,543 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:48,592 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:06:48,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48 WrapperNode [2018-11-18 12:06:48,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:48,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:48,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:06:48,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:06:48,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:48,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:06:48,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:06:48,610 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:06:48,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... [2018-11-18 12:06:48,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:06:48,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:06:48,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:06:48,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:06:48,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:06:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 12:06:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 12:06:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:06:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:06:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 12:06:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:06:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:06:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:06:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:06:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:06:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:06:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:06:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:06:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:06:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:06:48,944 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:06:48,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:48 BoogieIcfgContainer [2018-11-18 12:06:48,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:06:48,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:06:48,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:06:48,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:06:48,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:06:48" (1/3) ... [2018-11-18 12:06:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d86e4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:48, skipping insertion in model container [2018-11-18 12:06:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:48" (2/3) ... [2018-11-18 12:06:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d86e4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:48, skipping insertion in model container [2018-11-18 12:06:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:48" (3/3) ... [2018-11-18 12:06:48,950 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:48,956 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:06:48,962 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:06:48,972 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:06:48,993 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:06:48,993 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:06:48,993 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:06:48,993 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:06:48,994 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:06:48,994 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:06:48,994 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:06:48,994 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:06:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:06:49,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:06:49,009 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:49,009 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:49,011 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:06:49,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1894497446, now seen corresponding path program 1 times [2018-11-18 12:06:49,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:06:49,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:49,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:49,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:49,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:06:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:49,119 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 12:06:49,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:49,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:06:49,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:06:49,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:06:49,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:06:49,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:06:49,136 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:06:49,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:49,148 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-11-18 12:06:49,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:06:49,150 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:06:49,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:49,159 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:06:49,159 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:06:49,161 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 12:06:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:06:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:06:49,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:06:49,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:06:49,185 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-11-18 12:06:49,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:49,185 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:06:49,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:06:49,185 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:06:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:06:49,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:49,186 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:49,186 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:06:49,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:49,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1238667486, now seen corresponding path program 1 times [2018-11-18 12:06:49,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:06:49,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:49,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:49,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:49,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:06:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:49,248 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:06:49,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:06:49 BoogieIcfgContainer [2018-11-18 12:06:49,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:06:49,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:06:49,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:06:49,272 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:06:49,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:48" (3/4) ... [2018-11-18 12:06:49,275 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:06:49,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:06:49,276 INFO L168 Benchmark]: Toolchain (without parser) took 903.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,277 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:49,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,278 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,279 INFO L168 Benchmark]: RCFGBuilder took 308.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,279 INFO L168 Benchmark]: TraceAbstraction took 326.69 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,280 INFO L168 Benchmark]: Witness Printer took 3.03 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:49,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.44 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 308.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 326.69 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.03 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=34, \old(halF_exp)=15, \old(huge_exp)=28, \old(invln2_exp)=11, \old(ln2HI_exp)=9, \old(ln2HI_exp)=32, \old(ln2LO_exp)=33, \old(ln2LO_exp)=18, \old(one_exp)=23, \old(P1_exp)=14, \old(P2_exp)=16, \old(P3_exp)=20, \old(P4_exp)=22, \old(P5_exp)=21, \old(twom100_exp)=10, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = 0.0f; VAL [halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=0, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [\old(x)=0, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L42] FCALL ieee_float_shape_type gf_u; [L43] FCALL gf_u.value = (x) [L44] EXPR, FCALL gf_u.word [L44] (sx) = gf_u.word [L45] COND FALSE !(0) VAL [\old(x)=0, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=0, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] RET return x + x; VAL [\old(x)=0, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=27, halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=27, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L122] __VERIFIER_error() VAL [halF_exp={13:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={31:0}, ln2LO_exp={19:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=27, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 12:06:50,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:06:50,691 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:06:50,698 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:06:50,698 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:06:50,699 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:06:50,699 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:06:50,701 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:06:50,702 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:06:50,702 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:06:50,703 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:06:50,703 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:06:50,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:06:50,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:06:50,706 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:06:50,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:06:50,707 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:06:50,708 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:06:50,709 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:06:50,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:06:50,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:06:50,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:06:50,713 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:06:50,713 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:06:50,714 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:06:50,714 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:06:50,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:06:50,715 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:06:50,716 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:06:50,717 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:06:50,717 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:06:50,717 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:06:50,717 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:06:50,717 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:06:50,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:06:50,719 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:06:50,719 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:06:50,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:06:50,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:06:50,729 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:06:50,729 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:06:50,729 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:06:50,730 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:06:50,730 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:06:50,730 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:06:50,730 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:06:50,730 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:06:50,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:06:50,731 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:06:50,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:06:50,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:06:50,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:06:50,734 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:06:50,734 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_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2018-11-18 12:06:50,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:06:50,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:06:50,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:06:50,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:06:50,775 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:06:50,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:50,810 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/612568ad0/24c86164cc32469bb4b028e56d8d03a9/FLAG31e948876 [2018-11-18 12:06:51,138 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:06:51,139 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:51,144 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/612568ad0/24c86164cc32469bb4b028e56d8d03a9/FLAG31e948876 [2018-11-18 12:06:51,568 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/data/612568ad0/24c86164cc32469bb4b028e56d8d03a9 [2018-11-18 12:06:51,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:06:51,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:06:51,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:51,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:06:51,574 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:06:51,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e902788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51, skipping insertion in model container [2018-11-18 12:06:51,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:06:51,598 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:06:51,737 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:51,743 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:06:51,769 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:51,786 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:06:51,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51 WrapperNode [2018-11-18 12:06:51,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:51,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:51,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:06:51,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:06:51,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:51,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:06:51,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:06:51,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:06:51,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... [2018-11-18 12:06:51,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:06:51,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:06:51,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:06:51,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:06:51,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:06:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 12:06:51,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 12:06:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:06:51,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:06:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:06:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:06:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 12:06:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:06:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:06:52,049 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:06:59,553 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:06:59,581 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:06:59,666 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:06:59,682 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:06:59,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:59 BoogieIcfgContainer [2018-11-18 12:06:59,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:06:59,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:06:59,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:06:59,685 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:06:59,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:06:51" (1/3) ... [2018-11-18 12:06:59,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84d0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:59, skipping insertion in model container [2018-11-18 12:06:59,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:51" (2/3) ... [2018-11-18 12:06:59,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c84d0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:06:59, skipping insertion in model container [2018-11-18 12:06:59,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:59" (3/3) ... [2018-11-18 12:06:59,687 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-11-18 12:06:59,692 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:06:59,696 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:06:59,705 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:06:59,723 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:06:59,724 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:06:59,724 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:06:59,724 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:06:59,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:06:59,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:06:59,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:06:59,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:06:59,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:06:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:06:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:06:59,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:59,740 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:59,742 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:06:59,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:59,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1894497446, now seen corresponding path program 1 times [2018-11-18 12:06:59,748 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:06:59,748 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:06:59,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:59,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:59,875 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 12:06:59,875 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:06:59,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:59,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:06:59,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:06:59,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:06:59,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:06:59,896 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:06:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:59,910 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-11-18 12:06:59,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:06:59,911 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:06:59,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:06:59,919 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:06:59,919 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:06:59,921 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 12:06:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:06:59,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:06:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:06:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:06:59,946 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-11-18 12:06:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:06:59,946 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:06:59,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:06:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:06:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:06:59,947 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:06:59,947 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:06:59,948 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:06:59,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:59,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1238667486, now seen corresponding path program 1 times [2018-11-18 12:06:59,949 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:06:59,949 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:06:59,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:00,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:00,145 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 12:07:00,146 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:00,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:00,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:07:00,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:07:00,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:07:00,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:07:00,155 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-11-18 12:07:09,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:09,528 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-18 12:07:09,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:07:09,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-18 12:07:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:09,583 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:07:09,583 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 12:07:09,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:07:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 12:07:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-11-18 12:07:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:07:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-18 12:07:09,588 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2018-11-18 12:07:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:09,588 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-18 12:07:09,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:07:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-18 12:07:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 12:07:09,589 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:09,589 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:07:09,589 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:09,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:09,590 INFO L82 PathProgramCache]: Analyzing trace with hash -805933126, now seen corresponding path program 1 times [2018-11-18 12:07:09,590 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:09,590 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:07:09,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:09,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:09,731 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 12:07:09,732 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:09,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:09,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:07:09,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:07:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:07:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:07:09,741 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-11-18 12:07:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:18,843 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-18 12:07:18,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:07:18,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 12:07:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:18,902 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:07:18,902 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 12:07:18,902 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:07:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 12:07:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-11-18 12:07:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:07:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-18 12:07:18,907 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 19 [2018-11-18 12:07:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:18,908 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-18 12:07:18,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:07:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-18 12:07:18,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:07:18,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:18,908 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] [2018-11-18 12:07:18,908 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:18,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:18,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1463319260, now seen corresponding path program 1 times [2018-11-18 12:07:18,909 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:18,909 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:07:18,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:18,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:19,057 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 12:07:19,057 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:19,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:19,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:07:19,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:07:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:07:19,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:07:19,066 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-11-18 12:07:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:27,104 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2018-11-18 12:07:27,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:07:27,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 12:07:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:27,162 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:07:27,162 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:07:27,163 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:07:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:07:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-11-18 12:07:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:07:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-11-18 12:07:27,167 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 20 [2018-11-18 12:07:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:27,167 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-11-18 12:07:27,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:07:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-11-18 12:07:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:07:27,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:27,168 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] [2018-11-18 12:07:27,168 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:27,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:27,169 INFO L82 PathProgramCache]: Analyzing trace with hash -779106723, now seen corresponding path program 1 times [2018-11-18 12:07:27,169 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:27,169 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/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 12:07:27,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:27,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:27,296 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 12:07:27,297 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:27,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:27,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:07:27,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:07:27,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:07:27,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:07:27,305 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 6 states. [2018-11-18 12:07:36,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:36,384 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-11-18 12:07:36,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:07:36,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 12:07:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:36,386 INFO L225 Difference]: With dead ends: 50 [2018-11-18 12:07:36,386 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:07:36,386 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:07:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:07:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-11-18 12:07:36,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:07:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-18 12:07:36,389 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2018-11-18 12:07:36,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:36,389 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-18 12:07:36,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:07:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-18 12:07:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:07:36,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:36,390 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 12:07:36,390 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:36,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:36,391 INFO L82 PathProgramCache]: Analyzing trace with hash 794830730, now seen corresponding path program 1 times [2018-11-18 12:07:36,391 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:36,391 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 12:07:36,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:36,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:37,068 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 12:07:37,131 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 12:07:37,131 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:37,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:37,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 12:07:37,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:07:37,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:07:37,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:07:37,141 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-11-18 12:07:40,223 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 12:07:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:47,089 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-11-18 12:07:47,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:07:47,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-18 12:07:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:47,090 INFO L225 Difference]: With dead ends: 48 [2018-11-18 12:07:47,090 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:07:47,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:07:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:07:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-11-18 12:07:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:07:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-11-18 12:07:47,093 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2018-11-18 12:07:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:47,094 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-11-18 12:07:47,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:07:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-11-18 12:07:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:07:47,094 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:47,095 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 12:07:47,095 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:47,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:47,095 INFO L82 PathProgramCache]: Analyzing trace with hash -800072816, now seen corresponding path program 1 times [2018-11-18 12:07:47,095 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:47,095 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 12:07:47,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:47,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:07:47,858 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 12:07:47,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:07:47,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:07:47,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:07:47,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:07:47,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:07:47,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:07:47,877 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 7 states. [2018-11-18 12:07:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:07:58,691 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-11-18 12:07:58,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:07:58,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 12:07:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:07:58,753 INFO L225 Difference]: With dead ends: 61 [2018-11-18 12:07:58,753 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:07:58,753 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:07:58,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:07:58,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-18 12:07:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:07:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-11-18 12:07:58,757 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2018-11-18 12:07:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:07:58,757 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-11-18 12:07:58,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:07:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 12:07:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:07:58,758 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:07:58,758 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 12:07:58,758 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:07:58,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:07:58,758 INFO L82 PathProgramCache]: Analyzing trace with hash 499020678, now seen corresponding path program 1 times [2018-11-18 12:07:58,759 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:07:58,759 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-18 12:07:58,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:07:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:07:59,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:08:00,037 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 12:08:00,041 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 12:08:00,041 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:08:00,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:00,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:08:00,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:08:00,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:08:00,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:08:00,056 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2018-11-18 12:08:03,408 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:08:09,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:09,685 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-11-18 12:08:09,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:08:09,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 12:08:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:09,691 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:08:09,691 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:08:09,691 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:08:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:08:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:08:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:08:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 12:08:09,696 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 25 [2018-11-18 12:08:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:09,696 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 12:08:09,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:08:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 12:08:09,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:08:09,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:08:09,696 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 12:08:09,696 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:08:09,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:08:09,697 INFO L82 PathProgramCache]: Analyzing trace with hash -765469551, now seen corresponding path program 1 times [2018-11-18 12:08:09,697 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:08:09,697 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-18 12:08:09,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:08:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:08:10,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:08:10,697 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 12:08:10,697 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:08:10,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:10,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:08:10,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:08:10,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:08:10,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:08:10,714 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2018-11-18 12:08:22,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:22,890 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-11-18 12:08:22,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:08:22,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 12:08:22,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:22,952 INFO L225 Difference]: With dead ends: 58 [2018-11-18 12:08:22,952 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 12:08:22,952 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:08:22,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 12:08:22,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 12:08:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 12:08:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-18 12:08:22,955 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2018-11-18 12:08:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:22,955 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-18 12:08:22,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:08:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-18 12:08:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 12:08:22,956 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:08:22,956 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] [2018-11-18 12:08:22,956 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:08:22,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:08:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1328246963, now seen corresponding path program 1 times [2018-11-18 12:08:22,957 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:08:22,957 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-18 12:08:22,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:08:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:08:23,690 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:08:24,446 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 12:08:24,449 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 12:08:24,450 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:08:24,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:08:24,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:08:24,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:08:24,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:08:24,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:08:24,464 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 6 states. [2018-11-18 12:08:25,410 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:08:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:08:29,704 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-18 12:08:29,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:08:29,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 12:08:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:08:29,770 INFO L225 Difference]: With dead ends: 37 [2018-11-18 12:08:29,770 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:08:29,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:08:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:08:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:08:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:08:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:08:29,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 12:08:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:08:29,771 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:08:29,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:08:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:08:29,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:08:29,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:08:30,158 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-11-18 12:08:30,499 WARN L180 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-11-18 12:08:30,525 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L428 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L421 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|)))) [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L421 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= |__ieee754_expf_#in~x| __ieee754_expf_~x)) [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-11-18 12:08:30,526 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|)))) [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) ~one_exp~0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) [2018-11-18 12:08:30,527 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-11-18 12:08:30,527 INFO L421 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0))) [2018-11-18 12:08:30,527 INFO L425 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,534 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,534 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,536 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,536 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,536 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,537 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,537 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,537 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,537 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,537 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,538 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,539 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,539 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,539 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,539 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,539 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,540 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,540 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,540 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,540 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,540 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,541 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,542 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:08:30 BoogieIcfgContainer [2018-11-18 12:08:30,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:08:30,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:08:30,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:08:30,543 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:08:30,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:59" (3/4) ... [2018-11-18 12:08:30,545 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:08:30,549 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-11-18 12:08:30,549 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:08:30,549 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:08:30,553 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-18 12:08:30,553 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 12:08:30,553 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 12:08:30,553 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:08:30,554 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:08:30,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x [2018-11-18 12:08:30,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 12:08:30,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 12:08:30,589 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9aa14446-7b68-4e4c-908b-92a6d1fb6d61/bin-2019/utaipan/witness.graphml [2018-11-18 12:08:30,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:08:30,590 INFO L168 Benchmark]: Toolchain (without parser) took 99019.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:30,590 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 12:08:30,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.91 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 12:08:30,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.00 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:08:30,591 INFO L168 Benchmark]: Boogie Preprocessor took 78.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:30,591 INFO L168 Benchmark]: RCFGBuilder took 7796.53 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:30,592 INFO L168 Benchmark]: TraceAbstraction took 90860.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -28.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:30,592 INFO L168 Benchmark]: Witness Printer took 46.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:08:30,594 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 214.91 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 20.00 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7796.53 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 90860.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -28.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Witness Printer took 46.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant [2018-11-18 12:08:30,598 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,598 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,598 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,598 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,598 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,599 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 41]: Loop Invariant [2018-11-18 12:08:30,600 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,601 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:08:30,603 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:08:30,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. SAFE Result, 90.8s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 83.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 358 SDtfs, 366 SDslu, 1041 SDs, 0 SdLazy, 374 SolverSat, 2 SolverUnsat, 28 SolverUnknown, 0 SolverNotchecked, 79.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 165 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 10 MinimizatonAttempts, 24 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 127 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 34 QuantifiedInterpolants, 45300 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1144 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...