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/floats-esbmc-regression/digits_bad_for.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:18:17,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:18:17,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:18:17,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:18:17,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:18:17,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:18:17,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:18:17,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:18:17,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:18:17,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:18:17,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:18:17,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:18:17,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:18:17,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:18:17,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:18:17,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:18:17,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:18:17,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:18:17,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:18:17,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:18:17,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:18:17,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:18:17,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:18:17,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:18:17,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:18:17,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:18:17,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:18:17,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:18:17,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:18:17,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:18:17,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:18:17,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:18:17,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:18:17,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:18:17,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:18:17,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:18:17,617 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 [2019-09-08 01:18:17,641 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:18:17,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:18:17,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:18:17,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:18:17,644 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:18:17,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:18:17,644 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:18:17,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:18:17,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:18:17,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:18:17,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:18:17,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:18:17,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:18:17,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:18:17,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:18:17,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:18:17,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:18:17,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:18:17,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:18:17,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:18:17,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:18:17,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:18:17,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:18:17,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:18:17,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:18:17,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:18:17,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:18:17,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:18:17,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:18:17,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:18:17,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:18:17,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:18:17,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:18:17,717 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:18:17,718 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/digits_bad_for.c [2019-09-08 01:18:17,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab20983a8/471aff36072a48f7b3050dfb61866b7c/FLAGfab7e3c81 [2019-09-08 01:18:18,221 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:18:18,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/digits_bad_for.c [2019-09-08 01:18:18,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab20983a8/471aff36072a48f7b3050dfb61866b7c/FLAGfab7e3c81 [2019-09-08 01:18:18,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab20983a8/471aff36072a48f7b3050dfb61866b7c [2019-09-08 01:18:18,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:18:18,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:18:18,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:18:18,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:18:18,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:18:18,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d2eccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18, skipping insertion in model container [2019-09-08 01:18:18,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:18:18,654 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:18:18,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:18:18,832 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:18:18,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:18:18,860 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:18:18,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18 WrapperNode [2019-09-08 01:18:18,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:18:18,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:18:18,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:18:18,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:18:18,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (1/1) ... [2019-09-08 01:18:18,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:18:18,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:18:18,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:18:18,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:18:18,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (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 [2019-09-08 01:18:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:18:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:18:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 01:18:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:18:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:18:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:18:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:18:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:18:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:18:19,214 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:18:19,215 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 01:18:19,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:18:19 BoogieIcfgContainer [2019-09-08 01:18:19,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:18:19,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:18:19,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:18:19,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:18:19,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:18:18" (1/3) ... [2019-09-08 01:18:19,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6d5875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:18:19, skipping insertion in model container [2019-09-08 01:18:19,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:18:18" (2/3) ... [2019-09-08 01:18:19,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6d5875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:18:19, skipping insertion in model container [2019-09-08 01:18:19,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:18:19" (3/3) ... [2019-09-08 01:18:19,224 INFO L109 eAbstractionObserver]: Analyzing ICFG digits_bad_for.c [2019-09-08 01:18:19,233 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:18:19,239 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:18:19,256 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:18:19,286 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:18:19,287 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:18:19,287 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:18:19,287 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:18:19,287 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:18:19,287 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:18:19,288 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:18:19,288 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:18:19,288 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:18:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-08 01:18:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 01:18:19,311 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:18:19,312 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:18:19,315 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:18:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:18:19,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2019-09-08 01:18:19,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:18:19,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:18:19,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:18:19,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:18:19,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:18:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:18:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:18:19,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:18:19,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:18:19,426 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:18:19,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:18:19,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:18:19,439 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-08 01:18:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:18:19,460 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-09-08 01:18:19,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:18:19,461 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-08 01:18:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:18:19,470 INFO L225 Difference]: With dead ends: 31 [2019-09-08 01:18:19,470 INFO L226 Difference]: Without dead ends: 12 [2019-09-08 01:18:19,474 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:18:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-08 01:18:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-08 01:18:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-08 01:18:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-08 01:18:19,513 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-08 01:18:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:18:19,514 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-08 01:18:19,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:18:19,516 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-08 01:18:19,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 01:18:19,517 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:18:19,518 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:18:19,519 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:18:19,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:18:19,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1877050693, now seen corresponding path program 1 times [2019-09-08 01:18:19,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:18:19,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:18:19,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:18:19,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:18:19,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:18:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:18:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:18:19,585 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:18:19,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:18:19 BoogieIcfgContainer [2019-09-08 01:18:19,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:18:19,626 INFO L168 Benchmark]: Toolchain (without parser) took 1003.59 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.7 MB in the beginning and 146.0 MB in the end (delta: -57.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:18:19,627 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 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. [2019-09-08 01:18:19,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.37 ms. Allocated memory is still 134.2 MB. Free memory was 88.5 MB in the beginning and 79.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:18:19,632 INFO L168 Benchmark]: Boogie Preprocessor took 132.42 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 79.3 MB in the beginning and 177.9 MB in the end (delta: -98.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:18:19,633 INFO L168 Benchmark]: RCFGBuilder took 222.19 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 166.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:18:19,634 INFO L168 Benchmark]: TraceAbstraction took 404.21 ms. Allocated memory is still 201.9 MB. Free memory was 166.6 MB in the beginning and 146.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:18:19,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 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 240.37 ms. Allocated memory is still 134.2 MB. Free memory was 88.5 MB in the beginning and 79.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.42 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 79.3 MB in the beginning and 177.9 MB in the end (delta: -98.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 222.19 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 166.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 404.21 ms. Allocated memory is still 201.9 MB. Free memory was 166.6 MB in the beginning and 146.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryLONGDOUBLEComparisonOperation at line 9, overapproximation of someBinaryArithmeticDOUBLEoperation at line 6. Possible FailurePath: [L6] long double x = 1.0/7.0; [L7] long long res = 0; [L9] int i = 1; VAL [i=1, res=0] [L9] COND FALSE !(x != 0) VAL [i=1, res=0] [L15] CALL __VERIFIER_assert(res > 67050) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...