./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/sum_array_false-unreach-call.i --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/loops/sum_array_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d03898b2adab3b021eca92ab7fbddac81b7b0464 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:38:31,324 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:38:31,326 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:38:31,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:38:31,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:38:31,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:38:31,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:38:31,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:38:31,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:38:31,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:38:31,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:38:31,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:38:31,355 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:38:31,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:38:31,358 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:38:31,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:38:31,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:38:31,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:38:31,365 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:38:31,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:38:31,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:38:31,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:38:31,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:38:31,374 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:38:31,374 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:38:31,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:38:31,377 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:38:31,378 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:38:31,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:38:31,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:38:31,381 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:38:31,382 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:38:31,382 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:38:31,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:38:31,384 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:38:31,385 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:38:31,386 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:38:31,402 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:38:31,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:38:31,404 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:38:31,405 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:38:31,405 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:38:31,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:38:31,405 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:38:31,406 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:38:31,406 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:38:31,406 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:38:31,406 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:38:31,407 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:38:31,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:38:31,408 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:38:31,408 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:38:31,408 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:38:31,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:38:31,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:38:31,410 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:38:31,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:38:31,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:38:31,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:38:31,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:38:31,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:38:31,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:38:31,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:38:31,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:38:31,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:38:31,412 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 -> d03898b2adab3b021eca92ab7fbddac81b7b0464 [2018-12-31 05:38:31,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:38:31,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:38:31,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:38:31,475 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:38:31,475 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:38:31,476 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/sum_array_false-unreach-call.i [2018-12-31 05:38:31,544 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4f571e0/f197a6704e2b4f11866cd862a7d234c3/FLAG206bc4724 [2018-12-31 05:38:31,986 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:38:31,987 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/sum_array_false-unreach-call.i [2018-12-31 05:38:31,996 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4f571e0/f197a6704e2b4f11866cd862a7d234c3/FLAG206bc4724 [2018-12-31 05:38:32,341 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4f571e0/f197a6704e2b4f11866cd862a7d234c3 [2018-12-31 05:38:32,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:38:32,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:38:32,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:38:32,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:38:32,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:38:32,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b813b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32, skipping insertion in model container [2018-12-31 05:38:32,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:38:32,383 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:38:32,629 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:38:32,646 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:38:32,685 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:38:32,717 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:38:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32 WrapperNode [2018-12-31 05:38:32,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:38:32,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:38:32,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:38:32,719 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:38:32,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:38:32,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:38:32,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:38:32,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:38:32,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (1/1) ... [2018-12-31 05:38:32,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:38:32,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:38:32,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:38:32,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:38:32,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (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 05:38:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 05:38:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:38:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:38:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 05:38:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 05:38:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 05:38:33,393 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:38:33,393 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-31 05:38:33,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:33 BoogieIcfgContainer [2018-12-31 05:38:33,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:38:33,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:38:33,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:38:33,399 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:38:33,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:38:32" (1/3) ... [2018-12-31 05:38:33,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:38:33, skipping insertion in model container [2018-12-31 05:38:33,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:32" (2/3) ... [2018-12-31 05:38:33,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:38:33, skipping insertion in model container [2018-12-31 05:38:33,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:33" (3/3) ... [2018-12-31 05:38:33,404 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_false-unreach-call.i [2018-12-31 05:38:33,415 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:38:33,425 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 05:38:33,442 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 05:38:33,475 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:38:33,476 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:38:33,476 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:38:33,476 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:38:33,476 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:38:33,476 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:38:33,477 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:38:33,477 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:38:33,477 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:38:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-31 05:38:33,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 05:38:33,500 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:38:33,501 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 05:38:33,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:38:33,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:38:33,510 INFO L82 PathProgramCache]: Analyzing trace with hash -779788197, now seen corresponding path program 1 times [2018-12-31 05:38:33,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:38:33,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:38:33,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:33,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:38:33,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:38:33,777 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 05:38:33,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:38:33,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 05:38:33,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 05:38:33,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 05:38:33,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:38:33,798 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-12-31 05:38:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:38:34,176 INFO L93 Difference]: Finished difference Result 60 states and 88 transitions. [2018-12-31 05:38:34,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 05:38:34,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-31 05:38:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:38:34,188 INFO L225 Difference]: With dead ends: 60 [2018-12-31 05:38:34,188 INFO L226 Difference]: Without dead ends: 29 [2018-12-31 05:38:34,191 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 05:38:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-31 05:38:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2018-12-31 05:38:34,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-31 05:38:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-12-31 05:38:34,223 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2018-12-31 05:38:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:38:34,223 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-12-31 05:38:34,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 05:38:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-31 05:38:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-31 05:38:34,224 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:38:34,224 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 05:38:34,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:38:34,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:38:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1602849365, now seen corresponding path program 1 times [2018-12-31 05:38:34,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:38:34,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:38:34,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:34,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:38:34,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 05:38:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 05:38:34,509 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 05:38:34,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:38:34 BoogieIcfgContainer [2018-12-31 05:38:34,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:38:34,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:38:34,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:38:34,564 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:38:34,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:33" (3/4) ... [2018-12-31 05:38:34,568 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 05:38:34,651 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:38:34,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:38:34,653 INFO L168 Benchmark]: Toolchain (without parser) took 2307.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:34,655 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:38:34,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.78 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:34,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.77 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:38:34,657 INFO L168 Benchmark]: Boogie Preprocessor took 50.24 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:34,658 INFO L168 Benchmark]: RCFGBuilder took 547.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:34,660 INFO L168 Benchmark]: TraceAbstraction took 1166.90 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:34,664 INFO L168 Benchmark]: Witness Printer took 89.19 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 05:38:34,675 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.78 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 76.77 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.24 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 547.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1166.90 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * Witness Printer took 89.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int M = __VERIFIER_nondet_uint(); [L15] int A[M], B[M], C[M]; [L16] unsigned int i; [L18] i=0 [L18] COND TRUE i