./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/float_double_true-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/float_double_true-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 773baadb55b498633b84884838d360efb3aec808 ................................................................................................................................................................................................................... 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/float_double_true-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 773baadb55b498633b84884838d360efb3aec808 ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:05:30,265 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:05:30,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:05:30,288 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:05:30,289 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:05:30,290 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:05:30,292 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:05:30,293 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:05:30,296 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:05:30,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:05:30,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:05:30,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:05:30,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:05:30,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:05:30,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:05:30,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:05:30,314 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:05:30,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:05:30,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:05:30,320 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:05:30,322 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:05:30,323 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:05:30,326 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:05:30,326 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:05:30,326 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:05:30,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:05:30,328 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:05:30,328 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:05:30,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:05:30,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:05:30,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:05:30,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:05:30,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:05:30,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:05:30,333 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:05:30,335 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:05:30,335 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:05:30,351 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:05:30,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:05:30,353 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:05:30,353 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:05:30,354 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:05:30,354 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:05:30,354 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:05:30,354 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:05:30,354 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:05:30,355 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:05:30,355 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:05:30,355 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:05:30,355 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:05:30,355 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:05:30,357 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:05:30,357 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:05:30,357 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:05:30,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:05:30,358 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:05:30,358 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:05:30,358 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:05:30,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:05:30,359 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:05:30,359 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:05:30,359 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:05:30,359 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:05:30,360 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:05:30,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:05:30,360 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 -> 773baadb55b498633b84884838d360efb3aec808 [2018-12-31 03:05:30,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:05:30,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:05:30,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:05:30,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:05:30,417 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:05:30,418 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:30,478 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d849471a/9c7614ba04204a778d836da43037839f/FLAG3c53b3cca [2018-12-31 03:05:30,963 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:05:30,964 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:30,969 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d849471a/9c7614ba04204a778d836da43037839f/FLAG3c53b3cca [2018-12-31 03:05:31,289 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d849471a/9c7614ba04204a778d836da43037839f [2018-12-31 03:05:31,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:05:31,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:05:31,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:05:31,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:05:31,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:05:31,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3361ed09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31, skipping insertion in model container [2018-12-31 03:05:31,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:05:31,336 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:05:31,528 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:05:31,534 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:05:31,551 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:05:31,568 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:05:31,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31 WrapperNode [2018-12-31 03:05:31,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:05:31,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:05:31,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:05:31,571 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:05:31,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:05:31,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:05:31,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:05:31,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:05:31,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (1/1) ... [2018-12-31 03:05:31,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:05:31,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:05:31,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:05:31,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:05:31,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (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 03:05:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:05:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:05:31,938 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:05:31,939 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:05:31,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:31 BoogieIcfgContainer [2018-12-31 03:05:31,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:05:31,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:05:31,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:05:31,944 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:05:31,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:05:31" (1/3) ... [2018-12-31 03:05:31,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5e2413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:05:31, skipping insertion in model container [2018-12-31 03:05:31,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:31" (2/3) ... [2018-12-31 03:05:31,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5e2413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:05:31, skipping insertion in model container [2018-12-31 03:05:31,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:31" (3/3) ... [2018-12-31 03:05:31,948 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:31,959 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:05:31,967 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:05:31,985 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:05:32,019 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:05:32,020 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:05:32,020 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:05:32,021 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:05:32,021 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:05:32,021 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:05:32,021 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:05:32,021 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:05:32,021 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:05:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 03:05:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 03:05:32,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:05:32,045 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 03:05:32,048 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:05:32,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:05:32,054 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 03:05:32,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:05:32,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:05:32,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:05:32,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:05:32,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:05:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:05:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:05:32,179 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:05:32,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:05:32 BoogieIcfgContainer [2018-12-31 03:05:32,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:05:32,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:05:32,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:05:32,196 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:05:32,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:31" (3/4) ... [2018-12-31 03:05:32,200 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:05:32,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:05:32,201 INFO L168 Benchmark]: Toolchain (without parser) took 907.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:05:32,203 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-31 03:05:32,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.78 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:32,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.48 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:05:32,206 INFO L168 Benchmark]: Boogie Preprocessor took 25.16 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:05:32,206 INFO L168 Benchmark]: RCFGBuilder took 300.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:32,207 INFO L168 Benchmark]: TraceAbstraction took 254.50 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:32,208 INFO L168 Benchmark]: Witness Printer took 4.72 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 03:05:32,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.78 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 42.48 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.16 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 300.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 254.50 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.72 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: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] double x = 1e20 + 1.; [L9] float y = x; [L4] COND TRUE !(cond) [L4] __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 03:05:34,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:05:34,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:05:34,608 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:05:34,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:05:34,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:05:34,611 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:05:34,613 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:05:34,615 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:05:34,616 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:05:34,617 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:05:34,617 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:05:34,618 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:05:34,619 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:05:34,620 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:05:34,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:05:34,622 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:05:34,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:05:34,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:05:34,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:05:34,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:05:34,632 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:05:34,634 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:05:34,634 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:05:34,635 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:05:34,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:05:34,637 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:05:34,638 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:05:34,639 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:05:34,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:05:34,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:05:34,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:05:34,642 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:05:34,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:05:34,644 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:05:34,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:05:34,645 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:05:34,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:05:34,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:05:34,664 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:05:34,664 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:05:34,664 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:05:34,664 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:05:34,664 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:05:34,665 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:05:34,666 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:05:34,667 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:05:34,667 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:05:34,668 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:05:34,668 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:05:34,668 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:05:34,668 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:05:34,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:05:34,669 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:05:34,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:05:34,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:05:34,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:05:34,670 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:05:34,670 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:05:34,670 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:05:34,671 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:05:34,671 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:05:34,671 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 -> 773baadb55b498633b84884838d360efb3aec808 [2018-12-31 03:05:34,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:05:34,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:05:34,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:05:34,759 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:05:34,759 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:05:34,761 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:34,835 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84088556/e3bf6fbac2e84db89816b9f6e4e4d544/FLAGf864d5c16 [2018-12-31 03:05:35,355 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:05:35,356 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:35,362 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84088556/e3bf6fbac2e84db89816b9f6e4e4d544/FLAGf864d5c16 [2018-12-31 03:05:35,716 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84088556/e3bf6fbac2e84db89816b9f6e4e4d544 [2018-12-31 03:05:35,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:05:35,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:05:35,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:05:35,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:05:35,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:05:35,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:05:35" (1/1) ... [2018-12-31 03:05:35,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ab2667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:35, skipping insertion in model container [2018-12-31 03:05:35,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:05:35" (1/1) ... [2018-12-31 03:05:35,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:05:35,769 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:05:36,017 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:05:36,025 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:05:36,044 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:05:36,062 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:05:36,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36 WrapperNode [2018-12-31 03:05:36,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:05:36,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:05:36,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:05:36,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:05:36,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:05:36,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:05:36,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:05:36,110 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:05:36,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (1/1) ... [2018-12-31 03:05:36,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:05:36,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:05:36,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:05:36,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:05:36,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (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 03:05:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:05:36,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:05:36,590 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:05:36,591 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 03:05:36,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:36 BoogieIcfgContainer [2018-12-31 03:05:36,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:05:36,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:05:36,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:05:36,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:05:36,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:05:35" (1/3) ... [2018-12-31 03:05:36,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af99042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:05:36, skipping insertion in model container [2018-12-31 03:05:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:05:36" (2/3) ... [2018-12-31 03:05:36,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af99042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:05:36, skipping insertion in model container [2018-12-31 03:05:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:36" (3/3) ... [2018-12-31 03:05:36,599 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-12-31 03:05:36,609 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:05:36,616 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:05:36,632 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:05:36,667 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:05:36,668 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:05:36,668 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:05:36,668 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:05:36,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:05:36,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:05:36,669 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:05:36,669 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:05:36,669 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:05:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 03:05:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 03:05:36,701 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:05:36,702 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 03:05:36,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:05:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:05:36,715 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 03:05:36,720 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:05:36,720 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 03:05:36,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:05:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:05:36,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:05:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:05:37,026 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:05:37,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:05:37,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:05:37,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 03:05:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 03:05:37,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:05:37,107 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-12-31 03:05:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:05:37,148 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-31 03:05:37,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 03:05:37,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 03:05:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:05:37,159 INFO L225 Difference]: With dead ends: 12 [2018-12-31 03:05:37,159 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:05:37,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:05:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:05:37,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:05:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:05:37,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:05:37,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 03:05:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:05:37,217 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:05:37,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 03:05:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:05:37,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:05:37,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:05:37,270 INFO L444 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2018-12-31 03:05:37,270 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:05:37,270 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:05:37,270 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:05:37,270 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-12-31 03:05:37,271 INFO L444 ceAbstractionStarter]: At program point L11(lines 6 12) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2018-12-31 03:05:37,271 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-12-31 03:05:37,271 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-12-31 03:05:37,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:05:37 BoogieIcfgContainer [2018-12-31 03:05:37,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:05:37,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:05:37,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:05:37,285 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:05:37,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:05:36" (3/4) ... [2018-12-31 03:05:37,290 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:05:37,300 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 03:05:37,301 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 03:05:37,345 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:05:37,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:05:37,347 INFO L168 Benchmark]: Toolchain (without parser) took 1624.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -104.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:37,350 INFO L168 Benchmark]: CDTParser took 0.45 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. [2018-12-31 03:05:37,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.14 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:37,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:05:37,354 INFO L168 Benchmark]: Boogie Preprocessor took 30.28 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:05:37,355 INFO L168 Benchmark]: RCFGBuilder took 450.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:37,357 INFO L168 Benchmark]: TraceAbstraction took 692.26 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:05:37,359 INFO L168 Benchmark]: Witness Printer took 60.53 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. [2018-12-31 03:05:37,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 338.14 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.28 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 450.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 692.26 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 60.53 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1bv32 == cond - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1bv32 == cond - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 4 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...