./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ccc35369aa7fc4059706b8166915b481ecdc09d ..................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ccc35369aa7fc4059706b8166915b481ecdc09d ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:55:12,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:55:12,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:55:12,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:55:12,028 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:55:12,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:55:12,031 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:55:12,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:55:12,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:55:12,038 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:55:12,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:55:12,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:55:12,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:55:12,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:55:12,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:55:12,047 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:55:12,048 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:55:12,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:55:12,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:55:12,063 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:55:12,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:55:12,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:55:12,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:55:12,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:55:12,071 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:55:12,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:55:12,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:55:12,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:55:12,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:55:12,080 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:55:12,081 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:55:12,081 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:55:12,082 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:55:12,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:55:12,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:55:12,084 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:55:12,085 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:55:12,104 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:55:12,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:55:12,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:55:12,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:55:12,109 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:55:12,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:55:12,109 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:55:12,109 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:55:12,109 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:55:12,110 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:55:12,111 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:55:12,112 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:55:12,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:55:12,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:55:12,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:55:12,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:55:12,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:55:12,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:55:12,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:55:12,113 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:55:12,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:55:12,113 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:55:12,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:55:12,114 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2019-01-12 07:55:12,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:55:12,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:55:12,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:55:12,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:55:12,182 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:55:12,182 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:12,245 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8802f35d7/31fd79222d9c4ab7a35d04e136243755/FLAGb3cda42c0 [2019-01-12 07:55:12,752 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:55:12,753 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:12,759 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8802f35d7/31fd79222d9c4ab7a35d04e136243755/FLAGb3cda42c0 [2019-01-12 07:55:13,087 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8802f35d7/31fd79222d9c4ab7a35d04e136243755 [2019-01-12 07:55:13,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:55:13,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:55:13,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:13,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:55:13,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:55:13,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aff20c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13, skipping insertion in model container [2019-01-12 07:55:13,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:55:13,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:55:13,401 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:13,415 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:55:13,449 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:13,469 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:55:13,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13 WrapperNode [2019-01-12 07:55:13,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:13,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:13,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:55:13,473 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:55:13,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:13,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:55:13,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:55:13,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:55:13,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... [2019-01-12 07:55:13,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:55:13,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:55:13,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:55:13,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:55:13,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 07:55:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:55:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:55:13,909 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:55:13,909 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-12 07:55:13,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:13 BoogieIcfgContainer [2019-01-12 07:55:13,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:55:13,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:55:13,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:55:13,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:55:13,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:55:13" (1/3) ... [2019-01-12 07:55:13,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df11436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:13, skipping insertion in model container [2019-01-12 07:55:13,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:13" (2/3) ... [2019-01-12 07:55:13,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df11436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:13, skipping insertion in model container [2019-01-12 07:55:13,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:13" (3/3) ... [2019-01-12 07:55:13,920 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:13,931 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:55:13,938 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 07:55:13,951 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 07:55:13,983 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:55:13,984 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:55:13,984 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:55:13,984 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:55:13,984 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:55:13,985 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:55:13,985 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:55:13,985 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:55:13,985 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:55:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-12 07:55:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-12 07:55:14,005 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:14,006 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-12 07:55:14,009 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:14,015 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-01-12 07:55:14,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:55:14,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:55:14,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:55:14,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:14,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:55:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:55:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:55:14,128 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:55:14,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:55:14 BoogieIcfgContainer [2019-01-12 07:55:14,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:55:14,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:55:14,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:55:14,147 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:55:14,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:13" (3/4) ... [2019-01-12 07:55:14,152 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:55:14,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:55:14,153 INFO L168 Benchmark]: Toolchain (without parser) took 1061.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:14,156 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:14,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:14,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.33 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:14,162 INFO L168 Benchmark]: Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:14,163 INFO L168 Benchmark]: RCFGBuilder took 365.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:14,164 INFO L168 Benchmark]: TraceAbstraction took 234.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:14,166 INFO L168 Benchmark]: Witness Printer took 5.72 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. [2019-01-12 07:55:14,175 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.33 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 365.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 234.25 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.72 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; [L10] COND TRUE !(res == 0x1.0p-126f) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.24-0ed9222-m [2019-01-12 07:55:16,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:55:16,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:55:16,546 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:55:16,547 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:55:16,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:55:16,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:55:16,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:55:16,555 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:55:16,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:55:16,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:55:16,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:55:16,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:55:16,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:55:16,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:55:16,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:55:16,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:55:16,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:55:16,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:55:16,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:55:16,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:55:16,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:55:16,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:55:16,580 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:55:16,580 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:55:16,581 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:55:16,582 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:55:16,583 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:55:16,584 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:55:16,585 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:55:16,585 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:55:16,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:55:16,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:55:16,586 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:55:16,587 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:55:16,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:55:16,588 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:55:16,616 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:55:16,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:55:16,618 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:55:16,619 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:55:16,619 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:55:16,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:55:16,620 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:55:16,620 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:55:16,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:55:16,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:55:16,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:55:16,622 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:55:16,624 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:55:16,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:55:16,625 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:55:16,625 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:55:16,625 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:55:16,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:55:16,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:55:16,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:55:16,626 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:55:16,626 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:55:16,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:55:16,626 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:55:16,626 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:55:16,626 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2019-01-12 07:55:16,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:55:16,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:55:16,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:55:16,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:55:16,711 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:55:16,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:16,771 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa5a3bc0/400b03cf5b994d7cbecb6557eabbd2df/FLAGb051d52dd [2019-01-12 07:55:17,184 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:55:17,185 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:17,191 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa5a3bc0/400b03cf5b994d7cbecb6557eabbd2df/FLAGb051d52dd [2019-01-12 07:55:17,581 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa5a3bc0/400b03cf5b994d7cbecb6557eabbd2df [2019-01-12 07:55:17,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:55:17,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:55:17,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:17,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:55:17,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:55:17,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dc78ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17, skipping insertion in model container [2019-01-12 07:55:17,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:55:17,622 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:55:17,836 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:17,849 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:55:17,888 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:17,915 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:55:17,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17 WrapperNode [2019-01-12 07:55:17,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:17,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:17,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:55:17,918 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:55:17,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:17,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:55:17,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:55:17,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:55:17,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:55:18,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:55:18,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:55:18,014 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:55:18,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 07:55:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:55:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:55:18,412 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:55:18,412 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-12 07:55:18,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18 BoogieIcfgContainer [2019-01-12 07:55:18,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:55:18,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:55:18,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:55:18,432 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:55:18,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:55:17" (1/3) ... [2019-01-12 07:55:18,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78094f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:18, skipping insertion in model container [2019-01-12 07:55:18,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (2/3) ... [2019-01-12 07:55:18,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78094f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:18, skipping insertion in model container [2019-01-12 07:55:18,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18" (3/3) ... [2019-01-12 07:55:18,437 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2019-01-12 07:55:18,453 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:55:18,463 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 07:55:18,486 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 07:55:18,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:55:18,532 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:55:18,532 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:55:18,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:55:18,533 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:55:18,533 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:55:18,533 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:55:18,533 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:55:18,533 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:55:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 07:55:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-12 07:55:18,561 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:18,563 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-12 07:55:18,566 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:18,572 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-01-12 07:55:18,577 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:18,578 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 07:55:18,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:18,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:18,746 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:18,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:18,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:18,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:18,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:18,779 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-01-12 07:55:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:18,795 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-01-12 07:55:18,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:18,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-12 07:55:18,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:18,813 INFO L225 Difference]: With dead ends: 27 [2019-01-12 07:55:18,814 INFO L226 Difference]: Without dead ends: 11 [2019-01-12 07:55:18,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-12 07:55:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-12 07:55:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-12 07:55:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-01-12 07:55:18,855 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2019-01-12 07:55:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:18,855 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-01-12 07:55:18,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-01-12 07:55:18,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 07:55:18,856 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:18,856 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 07:55:18,857 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:18,857 INFO L82 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2019-01-12 07:55:18,858 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:18,858 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 07:55:18,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,184 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2019-01-12 07:55:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,198 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-01-12 07:55:19,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-12 07:55:19,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,200 INFO L225 Difference]: With dead ends: 11 [2019-01-12 07:55:19,200 INFO L226 Difference]: Without dead ends: 9 [2019-01-12 07:55:19,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-12 07:55:19,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-12 07:55:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-12 07:55:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-01-12 07:55:19,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2019-01-12 07:55:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,205 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-01-12 07:55:19,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-01-12 07:55:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 07:55:19,206 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:19,206 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:55:19,207 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:19,208 INFO L82 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2019-01-12 07:55:19,209 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:19,209 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 07:55:19,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,539 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,554 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 3 states. [2019-01-12 07:55:19,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,556 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-01-12 07:55:19,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-12 07:55:19,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,557 INFO L225 Difference]: With dead ends: 9 [2019-01-12 07:55:19,557 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 07:55:19,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 07:55:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 07:55:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 07:55:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 07:55:19,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-12 07:55:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,559 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 07:55:19,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 07:55:19,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 07:55:19,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 07:55:19,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,567 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-01-12 07:55:19,567 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-01-12 07:55:19,567 INFO L448 ceAbstractionStarter]: For program point L23(lines 1 37) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 21) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 11) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2019-01-12 07:55:19,568 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-01-12 07:55:19,569 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-01-12 07:55:19,569 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-01-12 07:55:19,569 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-01-12 07:55:19,569 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-01-12 07:55:19,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:55:19 BoogieIcfgContainer [2019-01-12 07:55:19,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:55:19,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:55:19,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:55:19,573 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:55:19,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18" (3/4) ... [2019-01-12 07:55:19,577 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 07:55:19,589 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 07:55:19,589 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 07:55:19,634 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:55:19,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:55:19,635 INFO L168 Benchmark]: Toolchain (without parser) took 2050.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -105.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,638 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:19,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.09 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,640 INFO L168 Benchmark]: Boogie Preprocessor took 41.51 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:19,640 INFO L168 Benchmark]: RCFGBuilder took 400.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,641 INFO L168 Benchmark]: TraceAbstraction took 1150.82 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,642 INFO L168 Benchmark]: Witness Printer took 61.69 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.09 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 1.0 GB. Free memory was 935.3 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.51 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 400.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1150.82 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Witness Printer took 61.69 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 29]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 15 SDslu, 9 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 8 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...