./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 0.1.23-635dfa2 [2018-12-02 03:17:31,220 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:17:31,221 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:17:31,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:17:31,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:17:31,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:17:31,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:17:31,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:17:31,230 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:17:31,231 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:17:31,231 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:17:31,231 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:17:31,232 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:17:31,232 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:17:31,233 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:17:31,233 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:17:31,234 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:17:31,235 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:17:31,236 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:17:31,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:17:31,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:17:31,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:17:31,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:17:31,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:17:31,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:17:31,239 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:17:31,240 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:17:31,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:17:31,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:17:31,241 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:17:31,241 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:17:31,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:17:31,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:17:31,242 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:17:31,243 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:17:31,243 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:17:31,243 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 03:17:31,250 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:17:31,251 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:17:31,251 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:17:31,251 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:17:31,251 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:17:31,252 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 03:17:31,252 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:17:31,253 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:17:31,253 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:17:31,253 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:17:31,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:17:31,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:17:31,253 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:17:31,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:17:31,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:17:31,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 03:17:31,255 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:17:31,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 03:17:31,256 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 03:17:31,256 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_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:17:31,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:17:31,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:17:31,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:17:31,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:17:31,287 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:17:31,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:31,324 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/f59124001/0dbd62bf467e42278431272f83db9ad0/FLAG8dbf92729 [2018-12-02 03:17:31,662 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:17:31,663 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:31,666 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/f59124001/0dbd62bf467e42278431272f83db9ad0/FLAG8dbf92729 [2018-12-02 03:17:31,674 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/f59124001/0dbd62bf467e42278431272f83db9ad0 [2018-12-02 03:17:31,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:17:31,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:17:31,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:17:31,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:17:31,679 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:17:31,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b53f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31, skipping insertion in model container [2018-12-02 03:17:31,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:17:31,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:17:31,798 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:17:31,801 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:17:31,821 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:17:31,864 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:17:31,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31 WrapperNode [2018-12-02 03:17:31,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:17:31,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:17:31,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:17:31,865 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:17:31,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:17:31,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:17:31,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:17:31,881 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:17:31,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... [2018-12-02 03:17:31,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:17:31,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:17:31,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:17:31,904 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:17:31,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:17:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-02 03:17:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-02 03:17:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:17:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:17:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 03:17:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 03:17:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:17:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:17:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-02 03:17:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:17:32,103 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:17:32,103 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-02 03:17:32,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:32 BoogieIcfgContainer [2018-12-02 03:17:32,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:17:32,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:17:32,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:17:32,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:17:32,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:17:31" (1/3) ... [2018-12-02 03:17:32,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f19315d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:32, skipping insertion in model container [2018-12-02 03:17:32,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:31" (2/3) ... [2018-12-02 03:17:32,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f19315d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:32, skipping insertion in model container [2018-12-02 03:17:32,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:32" (3/3) ... [2018-12-02 03:17:32,108 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:32,114 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:17:32,118 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:17:32,128 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:17:32,146 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:17:32,146 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:17:32,146 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:17:32,147 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:17:32,147 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:17:32,147 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:17:32,147 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:17:32,147 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:17:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-02 03:17:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 03:17:32,162 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:17:32,163 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:17:32,164 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:17:32,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:17:32,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-02 03:17:32,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:17:32,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:17:32,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:17:32,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:17:32,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:17:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:17:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:17:32,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:17:32,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 03:17:32,262 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:17:32,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 03:17:32,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 03:17:32,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:17:32,273 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-02 03:17:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:17:32,286 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-02 03:17:32,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 03:17:32,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-02 03:17:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:17:32,293 INFO L225 Difference]: With dead ends: 82 [2018-12-02 03:17:32,293 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 03:17:32,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:17:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 03:17:32,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 03:17:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:17:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-02 03:17:32,318 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-02 03:17:32,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:17:32,319 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-02 03:17:32,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 03:17:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-02 03:17:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 03:17:32,319 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:17:32,320 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:17:32,320 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:17:32,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:17:32,320 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-02 03:17:32,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:17:32,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:17:32,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:17:32,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:17:32,321 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:17:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:17:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:17:32,386 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 03:17:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:17:32 BoogieIcfgContainer [2018-12-02 03:17:32,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 03:17:32,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:17:32,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:17:32,411 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:17:32,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:32" (3/4) ... [2018-12-02 03:17:32,414 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 03:17:32,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:17:32,415 INFO L168 Benchmark]: Toolchain (without parser) took 738.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -77.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:17:32,416 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:17:32,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-12-02 03:17:32,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:17:32,417 INFO L168 Benchmark]: Boogie Preprocessor took 21.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:17:32,417 INFO L168 Benchmark]: RCFGBuilder took 199.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:17:32,418 INFO L168 Benchmark]: TraceAbstraction took 307.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-02 03:17:32,418 INFO L168 Benchmark]: Witness Printer took 3.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 03:17:32,420 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 199.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 307.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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)=6442450966, \old(halF_exp)=6442450954, \old(huge_exp)=6442450950, \old(invln2_exp)=6442450951, \old(ln2HI_exp)=6442450945, \old(ln2HI_exp)=6442450958, \old(ln2LO_exp)=6442450960, \old(ln2LO_exp)=6442450965, \old(one_exp)=6442450967, \old(P1_exp)=6442450953, \old(P2_exp)=6442450956, \old(P3_exp)=6442450962, \old(P4_exp)=6442450964, \old(P5_exp)=6442450963, \old(twom100_exp)=6442450946, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, 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={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, 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={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, 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={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=0, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [\old(x)=0, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450949, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, 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={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450949, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L122] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450957:0}, ln2LO_exp={6442450961:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450949, 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 0.1.23-635dfa2 [2018-12-02 03:17:33,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:17:33,711 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:17:33,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:17:33,717 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:17:33,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:17:33,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:17:33,719 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:17:33,720 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:17:33,720 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:17:33,721 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:17:33,721 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:17:33,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:17:33,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:17:33,722 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:17:33,723 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:17:33,723 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:17:33,724 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:17:33,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:17:33,726 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:17:33,726 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:17:33,727 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:17:33,728 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:17:33,728 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:17:33,728 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:17:33,729 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:17:33,729 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:17:33,730 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:17:33,730 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:17:33,730 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:17:33,731 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:17:33,731 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:17:33,731 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:17:33,731 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:17:33,732 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:17:33,732 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:17:33,732 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 03:17:33,740 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:17:33,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:17:33,740 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:17:33,740 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:17:33,741 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:17:33,741 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:17:33,741 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:17:33,741 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:17:33,741 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:17:33,741 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:17:33,742 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:17:33,742 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:17:33,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:17:33,743 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:17:33,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 03:17:33,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:17:33,745 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 03:17:33,745 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 03:17:33,745 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_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:17:33,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:17:33,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:17:33,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:17:33,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:17:33,777 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:17:33,778 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:33,822 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/a13716407/0bf6893529624cc188b3520e63ddf440/FLAGb2772cc98 [2018-12-02 03:17:34,228 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:17:34,228 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/sv-benchmarks/c/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:34,233 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/a13716407/0bf6893529624cc188b3520e63ddf440/FLAGb2772cc98 [2018-12-02 03:17:34,241 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/data/a13716407/0bf6893529624cc188b3520e63ddf440 [2018-12-02 03:17:34,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:17:34,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:17:34,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:17:34,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:17:34,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:17:34,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b97ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34, skipping insertion in model container [2018-12-02 03:17:34,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:17:34,264 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:17:34,371 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:17:34,376 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:17:34,400 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:17:34,416 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:17:34,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34 WrapperNode [2018-12-02 03:17:34,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:17:34,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:17:34,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:17:34,417 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:17:34,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:17:34,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:17:34,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:17:34,435 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:17:34,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... [2018-12-02 03:17:34,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:17:34,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:17:34,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:17:34,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:17:34,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:17:34,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-02 03:17:34,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:17:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:17:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 03:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:17:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:17:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 03:17:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 03:17:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:17:34,617 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 03:17:43,078 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 03:17:43,097 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 03:17:43,161 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 03:17:43,173 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:17:43,173 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-02 03:17:43,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:43 BoogieIcfgContainer [2018-12-02 03:17:43,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:17:43,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:17:43,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:17:43,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:17:43,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:17:34" (1/3) ... [2018-12-02 03:17:43,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116bfb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:43, skipping insertion in model container [2018-12-02 03:17:43,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:34" (2/3) ... [2018-12-02 03:17:43,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116bfb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:43, skipping insertion in model container [2018-12-02 03:17:43,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:43" (3/3) ... [2018-12-02 03:17:43,178 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-12-02 03:17:43,183 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:17:43,187 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:17:43,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:17:43,212 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:17:43,213 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:17:43,213 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:17:43,213 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:17:43,213 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:17:43,213 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:17:43,213 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:17:43,213 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:17:43,213 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:17:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-02 03:17:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 03:17:43,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:17:43,227 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:17:43,228 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:17:43,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:17:43,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-02 03:17:43,234 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:17:43,234 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 03:17:43,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:17:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:17:43,319 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:17:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:17:43,329 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:17:43,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:17:43,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 03:17:43,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 03:17:43,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 03:17:43,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:17:43,350 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-02 03:17:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:17:43,362 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-02 03:17:43,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 03:17:43,363 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-02 03:17:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:17:43,369 INFO L225 Difference]: With dead ends: 82 [2018-12-02 03:17:43,370 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 03:17:43,372 INFO L631 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 [2018-12-02 03:17:43,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 03:17:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 03:17:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:17:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-02 03:17:43,394 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-02 03:17:43,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:17:43,394 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-02 03:17:43,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 03:17:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-02 03:17:43,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 03:17:43,395 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:17:43,395 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:17:43,395 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:17:43,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:17:43,395 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-02 03:17:43,396 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:17:43,396 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 03:17:43,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:17:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:17:43,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:17:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:17:43,563 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:17:43,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:17:43,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 03:17:43,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:17:43,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:17:43,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:17:43,578 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-02 03:17:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:17:54,504 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-12-02 03:17:54,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:17:54,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-12-02 03:17:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:17:54,562 INFO L225 Difference]: With dead ends: 50 [2018-12-02 03:17:54,563 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 03:17:54,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-02 03:17:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 03:17:54,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-12-02 03:17:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:17:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-02 03:17:54,567 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2018-12-02 03:17:54,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:17:54,567 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-02 03:17:54,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:17:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-02 03:17:54,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 03:17:54,568 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:17:54,568 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:17:54,568 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:17:54,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:17:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -211300720, now seen corresponding path program 1 times [2018-12-02 03:17:54,569 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:17:54,569 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 03:17:54,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:17:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:17:54,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:17:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:17:54,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:17:54,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:17:54,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:17:54,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:17:54,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:17:54,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:17:54,720 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-12-02 03:18:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:04,244 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-12-02 03:18:04,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:18:04,303 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-02 03:18:04,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:04,304 INFO L225 Difference]: With dead ends: 52 [2018-12-02 03:18:04,304 INFO L226 Difference]: Without dead ends: 46 [2018-12-02 03:18:04,304 INFO L631 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 [2018-12-02 03:18:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-02 03:18:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-12-02 03:18:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:18:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-02 03:18:04,308 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 19 [2018-12-02 03:18:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:04,308 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-02 03:18:04,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:18:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-02 03:18:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 03:18:04,309 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:04,309 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:04,309 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:04,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash -95067259, now seen corresponding path program 1 times [2018-12-02 03:18:04,310 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:04,310 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-02 03:18:04,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:04,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:04,458 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:04,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:04,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 03:18:04,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:18:04,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:18:04,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:18:04,467 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-12-02 03:18:13,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:13,678 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2018-12-02 03:18:13,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:18:13,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-02 03:18:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:13,735 INFO L225 Difference]: With dead ends: 52 [2018-12-02 03:18:13,735 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 03:18:13,736 INFO L631 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 [2018-12-02 03:18:13,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 03:18:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-12-02 03:18:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 03:18:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-12-02 03:18:13,738 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 20 [2018-12-02 03:18:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:13,739 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-12-02 03:18:13,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:18:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-12-02 03:18:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 03:18:13,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:13,739 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:13,739 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:13,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:13,740 INFO L82 PathProgramCache]: Analyzing trace with hash 589145278, now seen corresponding path program 1 times [2018-12-02 03:18:13,740 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:13,740 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-02 03:18:13,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:13,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:13,871 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:13,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:13,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:18:13,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:18:13,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:18:13,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:18:13,880 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 6 states. [2018-12-02 03:18:23,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:23,201 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-12-02 03:18:23,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:18:23,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-12-02 03:18:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:23,203 INFO L225 Difference]: With dead ends: 50 [2018-12-02 03:18:23,203 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 03:18:23,203 INFO L631 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 [2018-12-02 03:18:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 03:18:23,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-12-02 03:18:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 03:18:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-12-02 03:18:23,206 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2018-12-02 03:18:23,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:23,206 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-12-02 03:18:23,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:18:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-12-02 03:18:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 03:18:23,207 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:23,207 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:23,207 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:23,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:23,207 INFO L82 PathProgramCache]: Analyzing trace with hash 901419296, now seen corresponding path program 1 times [2018-12-02 03:18:23,208 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:23,208 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:18:23,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:23,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:23,869 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 03:18:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:24,005 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:24,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:24,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 03:18:24,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 03:18:24,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 03:18:24,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-02 03:18:24,015 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-12-02 03:18:27,145 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 03:18:33,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:33,528 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-12-02 03:18:33,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:18:33,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-02 03:18:33,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:33,529 INFO L225 Difference]: With dead ends: 46 [2018-12-02 03:18:33,530 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 03:18:33,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-12-02 03:18:33,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 03:18:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-12-02 03:18:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 03:18:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-12-02 03:18:33,534 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2018-12-02 03:18:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:33,534 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-12-02 03:18:33,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 03:18:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-12-02 03:18:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 03:18:33,535 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:33,535 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:33,535 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:33,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:33,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1676277967, now seen corresponding path program 1 times [2018-12-02 03:18:33,536 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:33,536 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:18:33,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:34,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:34,327 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:34,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:34,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 03:18:34,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:18:34,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:18:34,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:18:34,341 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 7 states. [2018-12-02 03:18:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:43,269 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-12-02 03:18:43,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 03:18:43,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-02 03:18:43,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:43,329 INFO L225 Difference]: With dead ends: 61 [2018-12-02 03:18:43,329 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 03:18:43,329 INFO L631 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 [2018-12-02 03:18:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 03:18:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-12-02 03:18:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 03:18:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-12-02 03:18:43,332 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2018-12-02 03:18:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:43,332 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-12-02 03:18:43,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:18:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-02 03:18:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 03:18:43,333 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:43,333 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:43,333 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:43,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash -779018628, now seen corresponding path program 1 times [2018-12-02 03:18:43,334 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:43,334 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:18:43,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:44,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:44,718 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-02 03:18:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:44,722 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:44,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:44,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:18:44,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:18:44,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:18:44,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:18:44,737 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2018-12-02 03:18:48,182 WARN L180 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-02 03:18:55,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:18:55,739 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-12-02 03:18:55,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:18:55,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-02 03:18:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:18:55,741 INFO L225 Difference]: With dead ends: 47 [2018-12-02 03:18:55,741 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 03:18:55,741 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:18:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 03:18:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-02 03:18:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:18:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-02 03:18:55,744 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 25 [2018-12-02 03:18:55,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:18:55,744 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-02 03:18:55,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:18:55,744 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-02 03:18:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 03:18:55,744 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:18:55,745 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:18:55,745 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:18:55,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:18:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2043508857, now seen corresponding path program 1 times [2018-12-02 03:18:55,745 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:18:55,745 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:18:55,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:18:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:18:56,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:18:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:18:56,781 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:18:56,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:18:56,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 03:18:56,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:18:56,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:18:56,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:18:56,799 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2018-12-02 03:19:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:19:08,826 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-02 03:19:08,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:19:08,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-02 03:19:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:19:08,897 INFO L225 Difference]: With dead ends: 58 [2018-12-02 03:19:08,897 INFO L226 Difference]: Without dead ends: 37 [2018-12-02 03:19:08,897 INFO L631 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 [2018-12-02 03:19:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-02 03:19:08,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-02 03:19:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 03:19:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-02 03:19:08,901 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2018-12-02 03:19:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:19:08,901 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-02 03:19:08,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:19:08,902 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-02 03:19:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 03:19:08,902 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:19:08,902 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:19:08,902 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:19:08,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:19:08,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1556919915, now seen corresponding path program 1 times [2018-12-02 03:19:08,903 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 03:19:08,903 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/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 [2018-12-02 03:19:08,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:19:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:19:09,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:19:10,331 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-02 03:19:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:19:10,336 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:19:10,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:19:10,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:19:10,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:19:10,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:19:10,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:19:10,351 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 6 states. [2018-12-02 03:19:11,268 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-02 03:19:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:19:15,564 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-02 03:19:15,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:19:15,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-02 03:19:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:19:15,634 INFO L225 Difference]: With dead ends: 37 [2018-12-02 03:19:15,634 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 03:19:15,635 INFO L631 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 [2018-12-02 03:19:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 03:19:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 03:19:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 03:19:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 03:19:15,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-02 03:19:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:19:15,635 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 03:19:15,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:19:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 03:19:15,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 03:19:15,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 03:19:16,009 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-02 03:19:16,359 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-02 03:19:16,360 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-02 03:19:16,360 INFO L448 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-12-02 03:19:16,360 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-02 03:19:16,360 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2018-12-02 03:19:16,360 INFO L448 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-12-02 03:19:16,361 INFO L444 ceAbstractionStarter]: At program point L97-2(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|)))) [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L444 ceAbstractionStarter]: At program point L41-2(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)) [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-12-02 03:19:16,362 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L444 ceAbstractionStarter]: At program point L84-2(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|)))) [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L444 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)) [2018-12-02 03:19:16,363 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-12-02 03:19:16,363 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-12-02 03:19:16,364 INFO L444 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))) [2018-12-02 03:19:16,364 INFO L448 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-12-02 03:19:16,370 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,370 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,370 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,370 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,371 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,374 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,375 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,375 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,375 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,376 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,377 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,378 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:19:16 BoogieIcfgContainer [2018-12-02 03:19:16,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 03:19:16,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:19:16,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:19:16,381 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:19:16,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:43" (3/4) ... [2018-12-02 03:19:16,384 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 03:19:16,387 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-12-02 03:19:16,388 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 03:19:16,388 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 03:19:16,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-12-02 03:19:16,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-02 03:19:16,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 03:19:16,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 03:19:16,391 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 03:19:16,407 WARN L221 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 [2018-12-02 03:19:16,407 WARN L221 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)) [2018-12-02 03:19:16,408 WARN L221 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)) [2018-12-02 03:19:16,421 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3d7ba7c4-25e5-4c0b-96df-47131261f852/bin-2019/utaipan/witness.graphml [2018-12-02 03:19:16,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:19:16,421 INFO L168 Benchmark]: Toolchain (without parser) took 102178.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -103.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,422 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:19:16,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.85 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.02 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:19:16,423 INFO L168 Benchmark]: Boogie Preprocessor took 53.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,423 INFO L168 Benchmark]: RCFGBuilder took 8685.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,423 INFO L168 Benchmark]: TraceAbstraction took 93206.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,424 INFO L168 Benchmark]: Witness Printer took 40.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2018-12-02 03:19:16,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.85 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.02 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8685.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 93206.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Witness Printer took 40.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 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 [2018-12-02 03:19:16,428 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,428 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,428 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,429 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,430 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,430 WARN L416 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 [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,431 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,432 WARN L416 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 [2018-12-02 03:19:16,432 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,432 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,432 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,432 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,433 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,434 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,434 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 03:19:16,434 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,434 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,434 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-02 03:19:16,434 WARN L416 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, 93.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 86.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 358 SDtfs, 380 SDslu, 1023 SDs, 0 SdLazy, 378 SolverSat, 2 SolverUnsat, 29 SolverUnknown, 0 SolverNotchecked, 80.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 165 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.0s 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, 10 MinimizatonAttempts, 20 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, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 34 QuantifiedInterpolants, 45300 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1194 ConjunctsInSsa, 67 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...