./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/float-benchs/nan_float_false-unreach-call_true-termination.c -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 2b1f703b8c1a340e028de77080ca419d81a34cd6 .................................................................................................................................................................................................................... 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/float-benchs/nan_float_false-unreach-call_true-termination.c -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 2b1f703b8c1a340e028de77080ca419d81a34cd6 ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:43:10,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:43:10,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:43:10,668 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:43:10,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:43:10,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:43:10,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:43:10,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:43:10,681 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:43:10,684 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:43:10,687 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:43:10,687 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:43:10,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:43:10,691 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:43:10,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:43:10,699 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:43:10,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:43:10,704 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:43:10,710 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:43:10,711 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:43:10,712 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:43:10,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:43:10,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:43:10,720 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:43:10,722 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:43:10,723 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:43:10,724 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:43:10,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:43:10,725 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:43:10,729 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:43:10,730 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:43:10,730 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:43:10,732 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:43:10,733 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:43:10,734 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:43:10,734 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:43:10,737 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:43:10,764 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:43:10,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:43:10,768 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:43:10,769 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:43:10,769 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:43:10,769 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:43:10,769 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:43:10,769 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:43:10,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:43:10,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:43:10,772 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:43:10,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:43:10,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:43:10,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:43:10,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:43:10,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:43:10,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:43:10,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:43:10,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:43:10,778 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:43:10,778 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:43:10,779 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:43:10,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:43:10,779 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-12-31 02:43:10,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:43:10,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:43:10,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:43:10,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:43:10,862 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:43:10,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:10,932 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a5417a4/b02b760071c640b089009e4828ce620a/FLAG0097b0ffa [2018-12-31 02:43:11,343 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:43:11,343 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:11,350 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a5417a4/b02b760071c640b089009e4828ce620a/FLAG0097b0ffa [2018-12-31 02:43:11,712 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a5417a4/b02b760071c640b089009e4828ce620a [2018-12-31 02:43:11,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:43:11,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:43:11,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:43:11,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:43:11,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:43:11,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:43:11" (1/1) ... [2018-12-31 02:43:11,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1500d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:11, skipping insertion in model container [2018-12-31 02:43:11,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:43:11" (1/1) ... [2018-12-31 02:43:11,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:43:11,758 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:43:12,011 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:43:12,017 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:43:12,037 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:43:12,057 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:43:12,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12 WrapperNode [2018-12-31 02:43:12,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:43:12,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:43:12,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:43:12,058 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:43:12,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:43:12,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:43:12,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:43:12,094 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:43:12,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (1/1) ... [2018-12-31 02:43:12,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:43:12,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:43:12,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:43:12,114 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:43:12,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (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 [2018-12-31 02:43:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:43:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:43:12,402 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:43:12,403 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:43:12,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:12 BoogieIcfgContainer [2018-12-31 02:43:12,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:43:12,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:43:12,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:43:12,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:43:12,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:43:11" (1/3) ... [2018-12-31 02:43:12,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29515cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:43:12, skipping insertion in model container [2018-12-31 02:43:12,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:12" (2/3) ... [2018-12-31 02:43:12,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29515cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:43:12, skipping insertion in model container [2018-12-31 02:43:12,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:12" (3/3) ... [2018-12-31 02:43:12,411 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:12,421 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:43:12,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:43:12,445 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:43:12,479 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:43:12,480 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:43:12,480 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:43:12,480 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:43:12,481 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:43:12,481 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:43:12,481 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:43:12,481 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:43:12,481 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:43:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:43:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:43:12,504 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:43:12,505 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:43:12,508 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:43:12,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:43:12,514 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 02:43:12,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:43:12,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:43:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:43:12,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:43:12,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:43:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:43:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:43:12,632 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:43:12,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:43:12 BoogieIcfgContainer [2018-12-31 02:43:12,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:43:12,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:43:12,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:43:12,654 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:43:12,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:12" (3/4) ... [2018-12-31 02:43:12,659 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:43:12,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:43:12,660 INFO L168 Benchmark]: Toolchain (without parser) took 942.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:12,662 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-12-31 02:43:12,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.15 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. [2018-12-31 02:43:12,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.80 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:12,666 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:12,666 INFO L168 Benchmark]: RCFGBuilder took 289.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:43:12,668 INFO L168 Benchmark]: TraceAbstraction took 248.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:43:12,669 INFO L168 Benchmark]: Witness Printer took 5.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:12,673 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.15 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 34.80 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 289.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 248.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 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=8occurred 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 0.1.24-2e94e6a [2018-12-31 02:43:15,124 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:43:15,126 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:43:15,142 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:43:15,142 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:43:15,144 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:43:15,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:43:15,148 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:43:15,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:43:15,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:43:15,156 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:43:15,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:43:15,157 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:43:15,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:43:15,159 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:43:15,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:43:15,163 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:43:15,171 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:43:15,174 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:43:15,175 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:43:15,176 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:43:15,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:43:15,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:43:15,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:43:15,181 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:43:15,182 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:43:15,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:43:15,183 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:43:15,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:43:15,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:43:15,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:43:15,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:43:15,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:43:15,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:43:15,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:43:15,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:43:15,188 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:43:15,220 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:43:15,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:43:15,225 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:43:15,225 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:43:15,225 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:43:15,225 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:43:15,226 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:43:15,226 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:43:15,226 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:43:15,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:43:15,226 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:43:15,227 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:43:15,228 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:43:15,228 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:43:15,228 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:43:15,228 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:43:15,229 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:43:15,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:43:15,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:43:15,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:43:15,229 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:43:15,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:43:15,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:43:15,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:43:15,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:43:15,232 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:43:15,232 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:43:15,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:43:15,232 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:43:15,232 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:43:15,233 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-12-31 02:43:15,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:43:15,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:43:15,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:43:15,334 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:43:15,334 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:43:15,335 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:15,413 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30794b27b/a28b1fc2af854108a8748cadf2a30590/FLAGa0dde5224 [2018-12-31 02:43:15,941 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:43:15,942 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:15,948 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30794b27b/a28b1fc2af854108a8748cadf2a30590/FLAGa0dde5224 [2018-12-31 02:43:16,291 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30794b27b/a28b1fc2af854108a8748cadf2a30590 [2018-12-31 02:43:16,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:43:16,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:43:16,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:43:16,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:43:16,305 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:43:16,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5f39ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16, skipping insertion in model container [2018-12-31 02:43:16,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:43:16,339 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:43:16,567 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:43:16,578 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:43:16,601 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:43:16,622 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:43:16,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16 WrapperNode [2018-12-31 02:43:16,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:43:16,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:43:16,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:43:16,624 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:43:16,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:43:16,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:43:16,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:43:16,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:43:16,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (1/1) ... [2018-12-31 02:43:16,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:43:16,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:43:16,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:43:16,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:43:16,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (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 [2018-12-31 02:43:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:43:16,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:43:17,034 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:43:17,034 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:43:17,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:17 BoogieIcfgContainer [2018-12-31 02:43:17,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:43:17,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:43:17,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:43:17,040 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:43:17,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:43:16" (1/3) ... [2018-12-31 02:43:17,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea77380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:43:17, skipping insertion in model container [2018-12-31 02:43:17,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:43:16" (2/3) ... [2018-12-31 02:43:17,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea77380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:43:17, skipping insertion in model container [2018-12-31 02:43:17,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:17" (3/3) ... [2018-12-31 02:43:17,044 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-12-31 02:43:17,055 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:43:17,064 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:43:17,080 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:43:17,115 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:43:17,116 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:43:17,116 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:43:17,116 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:43:17,116 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:43:17,116 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:43:17,117 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:43:17,117 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:43:17,117 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:43:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:43:17,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:43:17,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:43:17,142 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:43:17,145 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:43:17,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:43:17,152 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 02:43:17,158 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:43:17,159 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 [2018-12-31 02:43:17,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:43:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:43:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:43:17,260 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:43:17,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:43:17 BoogieIcfgContainer [2018-12-31 02:43:17,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:43:17,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:43:17,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:43:17,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:43:17,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:43:17" (3/4) ... [2018-12-31 02:43:17,285 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 02:43:17,332 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:43:17,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:43:17,334 INFO L168 Benchmark]: Toolchain (without parser) took 1036.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:17,336 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-12-31 02:43:17,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.47 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. [2018-12-31 02:43:17,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:17,339 INFO L168 Benchmark]: Boogie Preprocessor took 41.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:17,340 INFO L168 Benchmark]: RCFGBuilder took 322.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:43:17,341 INFO L168 Benchmark]: TraceAbstraction took 243.13 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:43:17,343 INFO L168 Benchmark]: Witness Printer took 52.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:43:17,348 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.47 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 47.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 243.13 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 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=8occurred 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 proved your program to be incorrect! Received shutdown request...