./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/addsub_float_exact_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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ...................................................................................................................................................................................................................... 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/addsub_float_exact_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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:59:33,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:59:33,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:59:33,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:59:33,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:59:33,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:59:33,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:59:33,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:59:33,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:59:33,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:59:33,651 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:59:33,651 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:59:33,652 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:59:33,653 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:59:33,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:59:33,655 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:59:33,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:59:33,658 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:59:33,660 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:59:33,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:59:33,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:59:33,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:59:33,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:59:33,667 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:59:33,667 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:59:33,668 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:59:33,669 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:59:33,670 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:59:33,671 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:59:33,672 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:59:33,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:59:33,673 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:59:33,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:59:33,674 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:59:33,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:59:33,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:59:33,676 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:59:33,695 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:59:33,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:59:33,697 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:59:33,697 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:59:33,697 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:59:33,699 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:59:33,699 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:59:33,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:59:33,700 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:59:33,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:59:33,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:59:33,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:59:33,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:59:33,701 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:59:33,702 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:59:33,702 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:59:33,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:59:33,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:59:33,703 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:59:33,705 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:59:33,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:59:33,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:59:33,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:59:33,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:59:33,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:59:33,707 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:59:33,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:59:33,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:59:33,707 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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-01-12 07:59:33,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:59:33,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:59:33,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:59:33,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:59:33,782 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:59:33,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:33,844 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048b3d6c6/1d5dc0a77ae64e2cb04f54a356efe4f3/FLAG3bc87460d [2019-01-12 07:59:34,262 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:59:34,262 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:34,268 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048b3d6c6/1d5dc0a77ae64e2cb04f54a356efe4f3/FLAG3bc87460d [2019-01-12 07:59:34,676 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/048b3d6c6/1d5dc0a77ae64e2cb04f54a356efe4f3 [2019-01-12 07:59:34,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:59:34,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:59:34,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:59:34,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:59:34,686 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:59:34,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:34,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b98fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34, skipping insertion in model container [2019-01-12 07:59:34,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:34,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:59:34,720 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:59:34,943 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:59:34,949 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:59:34,970 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:59:34,989 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:59:34,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34 WrapperNode [2019-01-12 07:59:34,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:59:34,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:59:34,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:59:34,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:59:35,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:59:35,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:59:35,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:59:35,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:59:35,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... [2019-01-12 07:59:35,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:59:35,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:59:35,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:59:35,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:59:35,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:59:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:59:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:59:35,341 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:59:35,342 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 07:59:35,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:35 BoogieIcfgContainer [2019-01-12 07:59:35,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:59:35,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:59:35,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:59:35,348 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:59:35,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:59:34" (1/3) ... [2019-01-12 07:59:35,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc7239b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:59:35, skipping insertion in model container [2019-01-12 07:59:35,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:34" (2/3) ... [2019-01-12 07:59:35,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc7239b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:59:35, skipping insertion in model container [2019-01-12 07:59:35,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:35" (3/3) ... [2019-01-12 07:59:35,352 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:35,360 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:59:35,367 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:59:35,383 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:59:35,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:59:35,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:59:35,416 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:59:35,416 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:59:35,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:59:35,417 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:59:35,417 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:59:35,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:59:35,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:59:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-01-12 07:59:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-12 07:59:35,438 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:59:35,439 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-12 07:59:35,441 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:59:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:59:35,447 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-01-12 07:59:35,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:59:35,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:59:35,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:59:35,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:59:35,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:59:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:59:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:59:35,560 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:59:35,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:59:35 BoogieIcfgContainer [2019-01-12 07:59:35,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:59:35,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:59:35,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:59:35,577 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:59:35,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:35" (3/4) ... [2019-01-12 07:59:35,582 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:59:35,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:59:35,583 INFO L168 Benchmark]: Toolchain (without parser) took 903.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:59:35,586 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:59:35,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.18 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. [2019-01-12 07:59:35,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.77 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. [2019-01-12 07:59:35,588 INFO L168 Benchmark]: Boogie Preprocessor took 24.75 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. [2019-01-12 07:59:35,589 INFO L168 Benchmark]: RCFGBuilder took 282.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:35,590 INFO L168 Benchmark]: TraceAbstraction took 231.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:35,591 INFO L168 Benchmark]: Witness Printer took 5.52 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. [2019-01-12 07:59:35,596 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.18 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 44.77 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 24.75 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 282.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 231.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.52 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z [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 0.1.24-0ed9222-m [2019-01-12 07:59:38,044 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:59:38,046 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:59:38,061 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:59:38,061 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:59:38,063 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:59:38,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:59:38,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:59:38,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:59:38,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:59:38,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:59:38,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:59:38,077 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:59:38,078 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:59:38,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:59:38,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:59:38,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:59:38,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:59:38,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:59:38,099 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:59:38,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:59:38,108 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:59:38,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:59:38,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:59:38,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:59:38,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:59:38,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:59:38,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:59:38,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:59:38,123 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:59:38,123 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:59:38,124 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:59:38,124 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:59:38,124 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:59:38,127 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:59:38,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:59:38,129 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:59:38,146 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:59:38,146 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:59:38,147 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:59:38,148 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:59:38,148 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:59:38,148 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:59:38,148 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:59:38,148 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:59:38,149 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:59:38,150 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:59:38,150 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:59:38,150 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:59:38,150 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:59:38,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:59:38,151 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:59:38,151 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:59:38,152 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:59:38,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:59:38,152 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:59:38,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:59:38,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:59:38,152 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:59:38,153 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:59:38,153 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:59:38,153 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:59:38,153 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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-01-12 07:59:38,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:59:38,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:59:38,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:59:38,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:59:38,250 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:59:38,251 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:38,323 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bda5cfb/758a11c1e90540759fb418d104c765d5/FLAG3ea759e6a [2019-01-12 07:59:38,794 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:59:38,795 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:38,801 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bda5cfb/758a11c1e90540759fb418d104c765d5/FLAG3ea759e6a [2019-01-12 07:59:39,129 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27bda5cfb/758a11c1e90540759fb418d104c765d5 [2019-01-12 07:59:39,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:59:39,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:59:39,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:59:39,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:59:39,140 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:59:39,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39, skipping insertion in model container [2019-01-12 07:59:39,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:59:39,173 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:59:39,332 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:59:39,344 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:59:39,362 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:59:39,384 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:59:39,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39 WrapperNode [2019-01-12 07:59:39,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:59:39,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:59:39,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:59:39,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:59:39,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:59:39,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:59:39,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:59:39,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:59:39,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... [2019-01-12 07:59:39,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:59:39,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:59:39,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:59:39,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:59:39,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:59:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:59:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:59:39,863 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:59:39,863 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 07:59:39,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:39 BoogieIcfgContainer [2019-01-12 07:59:39,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:59:39,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:59:39,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:59:39,869 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:59:39,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:59:39" (1/3) ... [2019-01-12 07:59:39,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207d44e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:59:39, skipping insertion in model container [2019-01-12 07:59:39,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:59:39" (2/3) ... [2019-01-12 07:59:39,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207d44e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:59:39, skipping insertion in model container [2019-01-12 07:59:39,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:39" (3/3) ... [2019-01-12 07:59:39,873 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2019-01-12 07:59:39,883 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:59:39,891 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:59:39,904 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:59:39,936 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:59:39,937 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:59:39,937 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:59:39,937 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:59:39,938 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:59:39,938 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:59:39,938 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:59:39,938 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:59:39,938 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:59:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-01-12 07:59:39,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-12 07:59:39,961 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:59:39,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-12 07:59:39,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:59:39,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:59:39,972 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-01-12 07:59:39,976 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:59:39,977 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-01-12 07:59:39,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:59:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:59:40,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:59:40,308 WARN L181 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 3 [2019-01-12 07:59:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:59:40,311 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:59:40,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:59:40,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:59:40,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:59:40,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:59:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:59:40,341 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-01-12 07:59:40,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:59:40,359 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-01-12 07:59:40,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:59:40,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-12 07:59:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:59:40,369 INFO L225 Difference]: With dead ends: 13 [2019-01-12 07:59:40,369 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 07:59:40,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:59:40,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 07:59:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 07:59:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 07:59:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 07:59:40,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-12 07:59:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:59:40,399 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 07:59:40,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:59:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 07:59:40,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 07:59:40,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 07:59:40,465 INFO L444 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2019-01-12 07:59:40,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 07:59:40,465 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 07:59:40,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 07:59:40,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 07:59:40,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-01-12 07:59:40,466 INFO L444 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2019-01-12 07:59:40,466 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-01-12 07:59:40,466 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-01-12 07:59:40,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:59:40 BoogieIcfgContainer [2019-01-12 07:59:40,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:59:40,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:59:40,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:59:40,491 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:59:40,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:59:39" (3/4) ... [2019-01-12 07:59:40,498 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 07:59:40,514 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 07:59:40,514 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 07:59:40,515 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 07:59:40,559 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:59:40,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:59:40,561 INFO L168 Benchmark]: Toolchain (without parser) took 1427.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:40,562 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:59:40,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.02 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:40,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.84 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. [2019-01-12 07:59:40,564 INFO L168 Benchmark]: Boogie Preprocessor took 55.14 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. [2019-01-12 07:59:40,566 INFO L168 Benchmark]: RCFGBuilder took 369.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:40,567 INFO L168 Benchmark]: TraceAbstraction took 624.82 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:59:40,568 INFO L168 Benchmark]: Witness Printer took 69.05 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. [2019-01-12 07:59:40,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 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 250.02 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.84 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 55.14 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 369.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 624.82 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Witness Printer took 69.05 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: - 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, 9 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 6 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 7 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...