./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/addsub_double_exact_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/addsub_double_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 e20164d66b413fd1e6480d779b873570f1c551b2 ...................................................................................................................................................................................................................... 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_double_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 e20164d66b413fd1e6480d779b873570f1c551b2 ............................................................................................................................................................................................................................................................ 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 02:47:31,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:47:31,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:47:31,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:47:31,181 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:47:31,182 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:47:31,183 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:47:31,185 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:47:31,187 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:47:31,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:47:31,189 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:47:31,189 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:47:31,190 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:47:31,191 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:47:31,192 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:47:31,193 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:47:31,194 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:47:31,196 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:47:31,198 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:47:31,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:47:31,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:47:31,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:47:31,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:47:31,205 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:47:31,205 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:47:31,206 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:47:31,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:47:31,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:47:31,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:47:31,211 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:47:31,211 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:47:31,212 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:47:31,212 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:47:31,212 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:47:31,213 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:47:31,214 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:47:31,214 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:47:31,244 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:47:31,245 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:47:31,247 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:47:31,247 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:47:31,247 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:47:31,247 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:47:31,247 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:47:31,249 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:47:31,249 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:47:31,250 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:47:31,250 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:47:31,250 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:47:31,250 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:47:31,250 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:47:31,251 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:47:31,251 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:47:31,252 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:47:31,252 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:47:31,252 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:47:31,252 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:47:31,252 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:47:31,253 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:47:31,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:47:31,255 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:47:31,255 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:47:31,255 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:47:31,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:47:31,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:47:31,256 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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-12-31 02:47:31,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:47:31,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:47:31,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:47:31,338 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:47:31,338 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:47:31,339 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:31,411 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e0e69b8/7ce101eee5c04a358a044fc22bbd9129/FLAG5cf501fa7 [2018-12-31 02:47:31,919 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:47:31,920 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:31,928 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e0e69b8/7ce101eee5c04a358a044fc22bbd9129/FLAG5cf501fa7 [2018-12-31 02:47:32,262 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e0e69b8/7ce101eee5c04a358a044fc22bbd9129 [2018-12-31 02:47:32,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:47:32,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:47:32,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:47:32,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:47:32,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:47:32,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179a4755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32, skipping insertion in model container [2018-12-31 02:47:32,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:47:32,304 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:47:32,490 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:47:32,497 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:47:32,515 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:47:32,532 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:47:32,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32 WrapperNode [2018-12-31 02:47:32,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:47:32,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:47:32,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:47:32,535 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:47:32,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:47:32,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:47:32,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:47:32,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:47:32,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... [2018-12-31 02:47:32,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:47:32,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:47:32,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:47:32,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:47:32,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:47:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:47:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:47:32,908 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:47:32,908 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:47:32,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:32 BoogieIcfgContainer [2018-12-31 02:47:32,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:47:32,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:47:32,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:47:32,913 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:47:32,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:47:32" (1/3) ... [2018-12-31 02:47:32,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5c0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:47:32, skipping insertion in model container [2018-12-31 02:47:32,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:32" (2/3) ... [2018-12-31 02:47:32,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5c0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:47:32, skipping insertion in model container [2018-12-31 02:47:32,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:32" (3/3) ... [2018-12-31 02:47:32,918 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:32,926 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:47:32,935 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:47:32,950 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:47:32,988 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:47:32,989 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:47:32,989 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:47:32,989 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:47:32,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:47:32,990 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:47:32,990 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:47:32,990 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:47:32,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:47:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:47:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:47:33,012 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:47:33,013 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:47:33,016 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:47:33,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:47:33,022 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 02:47:33,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:47:33,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:47:33,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:47:33,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:47:33,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:47:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:47:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:47:33,135 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:47:33,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:47:33 BoogieIcfgContainer [2018-12-31 02:47:33,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:47:33,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:47:33,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:47:33,154 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:47:33,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:32" (3/4) ... [2018-12-31 02:47:33,160 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:47:33,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:47:33,161 INFO L168 Benchmark]: Toolchain (without parser) took 894.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:47:33,163 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. [2018-12-31 02:47:33,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.59 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 02:47:33,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.62 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 02:47:33,169 INFO L168 Benchmark]: Boogie Preprocessor took 24.91 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 02:47:33,169 INFO L168 Benchmark]: RCFGBuilder took 305.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:33,171 INFO L168 Benchmark]: TraceAbstraction took 243.50 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:33,171 INFO L168 Benchmark]: Witness Printer took 6.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:47:33,181 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 265.59 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 43.62 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 24.91 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 305.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 243.50 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.33 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 14, overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [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 0.1.24-2e94e6a [2018-12-31 02:47:35,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:47:35,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:47:35,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:47:35,644 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:47:35,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:47:35,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:47:35,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:47:35,650 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:47:35,651 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:47:35,652 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:47:35,652 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:47:35,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:47:35,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:47:35,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:47:35,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:47:35,662 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:47:35,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:47:35,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:47:35,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:47:35,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:47:35,669 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:47:35,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:47:35,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:47:35,673 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:47:35,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:47:35,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:47:35,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:47:35,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:47:35,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:47:35,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:47:35,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:47:35,679 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:47:35,679 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:47:35,680 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:47:35,681 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:47:35,681 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:47:35,699 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:47:35,699 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:47:35,701 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:47:35,701 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:47:35,701 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:47:35,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:47:35,702 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:47:35,703 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:47:35,703 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:47:35,703 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:47:35,703 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:47:35,703 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:47:35,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:47:35,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:47:35,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:47:35,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:47:35,704 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:47:35,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:47:35,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:47:35,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:47:35,705 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:47:35,705 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:47:35,705 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:47:35,706 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:47:35,706 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:47:35,706 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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-12-31 02:47:35,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:47:35,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:47:35,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:47:35,767 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:47:35,768 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:47:35,769 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:35,841 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203835044/ebb8a197fba94a88a6629ada2d4ac969/FLAG759192c00 [2018-12-31 02:47:36,364 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:47:36,366 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:36,375 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203835044/ebb8a197fba94a88a6629ada2d4ac969/FLAG759192c00 [2018-12-31 02:47:36,732 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203835044/ebb8a197fba94a88a6629ada2d4ac969 [2018-12-31 02:47:36,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:47:36,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:47:36,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:47:36,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:47:36,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:47:36,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:47:36" (1/1) ... [2018-12-31 02:47:36,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c017a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:36, skipping insertion in model container [2018-12-31 02:47:36,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:47:36" (1/1) ... [2018-12-31 02:47:36,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:47:36,784 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:47:36,994 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:47:37,007 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:47:37,029 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:47:37,047 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:47:37,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37 WrapperNode [2018-12-31 02:47:37,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:47:37,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:47:37,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:47:37,049 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:47:37,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:47:37,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:47:37,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:47:37,099 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:47:37,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... [2018-12-31 02:47:37,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:47:37,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:47:37,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:47:37,133 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:47:37,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:47:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:47:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:47:37,625 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:47:37,625 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:47:37,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:37 BoogieIcfgContainer [2018-12-31 02:47:37,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:47:37,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:47:37,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:47:37,632 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:47:37,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:47:36" (1/3) ... [2018-12-31 02:47:37,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739c0850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:47:37, skipping insertion in model container [2018-12-31 02:47:37,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:47:37" (2/3) ... [2018-12-31 02:47:37,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739c0850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:47:37, skipping insertion in model container [2018-12-31 02:47:37,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:37" (3/3) ... [2018-12-31 02:47:37,639 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-12-31 02:47:37,650 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:47:37,659 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:47:37,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:47:37,723 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:47:37,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:47:37,724 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:47:37,724 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:47:37,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:47:37,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:47:37,725 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:47:37,725 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:47:37,725 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:47:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:47:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:47:37,749 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:47:37,752 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:47:37,755 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:47:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:47:37,762 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2018-12-31 02:47:37,766 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:47:37,766 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:47:37,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:47:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:47:38,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:47:38,255 WARN L181 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 3 [2018-12-31 02:47:38,257 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 02:47:38,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:47:38,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:47:38,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:47:38,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:47:38,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:47:38,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:47:38,297 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-12-31 02:47:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:47:38,319 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-31 02:47:38,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:47:38,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:47:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:47:38,329 INFO L225 Difference]: With dead ends: 12 [2018-12-31 02:47:38,329 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:47:38,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:47:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:47:38,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:47:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:47:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:47:38,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:47:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:47:38,360 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:47:38,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:47:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:47:38,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:47:38,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:47:38,427 INFO L444 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2018-12-31 02:47:38,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:47:38,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:47:38,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:47:38,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-12-31 02:47:38,429 INFO L444 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start___VERIFIER_assert_~cond) [2018-12-31 02:47:38,429 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-12-31 02:47:38,429 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-12-31 02:47:38,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:47:38 BoogieIcfgContainer [2018-12-31 02:47:38,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:47:38,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:47:38,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:47:38,449 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:47:38,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:47:37" (3/4) ... [2018-12-31 02:47:38,454 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:47:38,464 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 02:47:38,465 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:47:38,515 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:47:38,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:47:38,516 INFO L168 Benchmark]: Toolchain (without parser) took 1775.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:38,518 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 02:47:38,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.42 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 02:47:38,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.49 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 02:47:38,520 INFO L168 Benchmark]: Boogie Preprocessor took 33.88 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:38,521 INFO L168 Benchmark]: RCFGBuilder took 494.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:38,522 INFO L168 Benchmark]: TraceAbstraction took 819.98 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: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:38,524 INFO L168 Benchmark]: Witness Printer took 67.14 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:47:38,529 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 304.42 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 49.49 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 33.88 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 494.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 819.98 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: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.14 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: 6.9 MB). Peak memory consumption was 6.9 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, 0.7s 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, 0.1s 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10 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...