java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:11:36,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:11:36,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:11:36,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:11:36,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:11:36,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:11:36,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:11:36,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:11:36,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:11:36,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:11:36,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:11:36,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:11:36,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:11:36,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:11:36,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:11:36,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:11:36,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:11:36,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:11:36,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:11:36,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:11:36,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:11:36,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:11:36,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:11:36,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:11:36,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 16:11:36,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:11:36,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:11:36,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:11:36,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:11:36,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:11:36,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:11:36,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:11:36,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:11:36,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:11:36,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:11:36,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:11:36,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 16:11:36,356 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:11:36,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:11:36,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:11:36,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:11:36,358 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:11:36,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:11:36,359 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:11:36,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:11:36,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:11:36,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:11:36,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:11:36,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:11:36,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:11:36,360 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:11:36,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:11:36,361 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:11:36,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:11:36,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:11:36,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:11:36,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:11:36,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:11:36,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:11:36,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:11:36,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:11:36,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:11:36,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:11:36,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:11:36,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:11:36,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:11:36,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:11:36,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:11:36,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:11:36,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:11:36,411 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:11:36,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-1.c [2019-09-16 16:11:36,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a5209a7/92fa42d945774fa89ea2279c7054436b/FLAG597cf5a91 [2019-09-16 16:11:36,917 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:11:36,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-1.c [2019-09-16 16:11:36,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a5209a7/92fa42d945774fa89ea2279c7054436b/FLAG597cf5a91 [2019-09-16 16:11:37,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a5209a7/92fa42d945774fa89ea2279c7054436b [2019-09-16 16:11:37,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:11:37,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:11:37,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:11:37,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:11:37,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:11:37,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702bca65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37, skipping insertion in model container [2019-09-16 16:11:37,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,297 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:11:37,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:11:37,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:11:37,528 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:11:37,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:11:37,552 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:11:37,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37 WrapperNode [2019-09-16 16:11:37,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:11:37,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:11:37,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:11:37,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:11:37,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (1/1) ... [2019-09-16 16:11:37,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:11:37,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:11:37,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:11:37,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:11:37,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (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 [2019-09-16 16:11:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:11:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:11:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-16 16:11:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:11:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:11:37,924 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:11:37,924 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 16:11:37,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:11:37 BoogieIcfgContainer [2019-09-16 16:11:37,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:11:37,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:11:37,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:11:37,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:11:37,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:11:37" (1/3) ... [2019-09-16 16:11:37,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785a9a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:11:37, skipping insertion in model container [2019-09-16 16:11:37,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:37" (2/3) ... [2019-09-16 16:11:37,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785a9a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:11:37, skipping insertion in model container [2019-09-16 16:11:37,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:11:37" (3/3) ... [2019-09-16 16:11:37,933 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2019-09-16 16:11:37,942 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:11:37,949 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:11:37,965 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:11:37,996 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:11:37,997 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:11:37,997 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:11:37,997 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:11:37,997 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:11:37,998 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:11:37,998 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:11:37,998 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:11:37,998 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:11:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-16 16:11:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-16 16:11:38,019 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:38,020 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:38,023 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:38,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1712329921, now seen corresponding path program 1 times [2019-09-16 16:11:38,029 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:38,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:38,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:38,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:38,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:38,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:11:38,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 16:11:38,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 16:11:38,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 16:11:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:11:38,294 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2019-09-16 16:11:38,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:11:38,457 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2019-09-16 16:11:38,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 16:11:38,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-16 16:11:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:11:38,470 INFO L225 Difference]: With dead ends: 39 [2019-09-16 16:11:38,471 INFO L226 Difference]: Without dead ends: 12 [2019-09-16 16:11:38,475 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-16 16:11:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-16 16:11:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-16 16:11:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-16 16:11:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-16 16:11:38,523 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-16 16:11:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:11:38,523 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-16 16:11:38,523 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 16:11:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-16 16:11:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 16:11:38,524 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:38,525 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:38,526 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:38,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1117320769, now seen corresponding path program 1 times [2019-09-16 16:11:38,526 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:38,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:38,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:38,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:38,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 16:11:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 16:11:38,567 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-16 16:11:38,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:11:38 BoogieIcfgContainer [2019-09-16 16:11:38,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:11:38,596 INFO L168 Benchmark]: Toolchain (without parser) took 1315.95 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 89.1 MB in the beginning and 139.0 MB in the end (delta: -49.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,597 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.73 ms. Allocated memory is still 133.2 MB. Free memory was 88.9 MB in the beginning and 79.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,599 INFO L168 Benchmark]: Boogie Preprocessor took 141.08 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 79.3 MB in the beginning and 178.8 MB in the end (delta: -99.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,600 INFO L168 Benchmark]: RCFGBuilder took 230.38 ms. Allocated memory is still 201.9 MB. Free memory was 178.8 MB in the beginning and 167.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,601 INFO L168 Benchmark]: TraceAbstraction took 665.66 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 139.0 MB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:38,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.73 ms. Allocated memory is still 133.2 MB. Free memory was 88.9 MB in the beginning and 79.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.08 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 79.3 MB in the beginning and 178.8 MB in the end (delta: -99.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.38 ms. Allocated memory is still 201.9 MB. Free memory was 178.8 MB in the beginning and 167.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 665.66 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 139.0 MB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L14] int y=__VERIFIER_nondet_int(); [L16] COND TRUE y>0 VAL [x=100, y=1] [L18] COND FALSE !(x<100) VAL [x=100, y=1] [L23] CALL __VERIFIER_assert(y<=0 || (y<0 && x>=100)) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 8 SDslu, 48 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 incorrect! Received shutdown request...