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/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:58:19,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:19,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:19,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:58:19,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:58:19,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:58:19,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:58:19,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:58:19,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:58:19,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:58:19,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:58:19,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:58:19,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:19,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:19,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:19,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:19,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:19,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:19,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:19,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:19,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:19,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:19,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:19,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:19,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:19,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:19,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:19,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:19,556 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 [2019-09-20 12:58:19,575 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:19,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:19,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:19,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:19,577 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:19,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:19,578 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:19,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:19,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:19,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:19,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:19,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:19,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:19,579 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:19,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:19,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:19,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:19,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:19,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:19,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:19,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:19,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:19,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:19,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:19,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:19,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:19,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:19,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:19,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:19,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:19,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:19,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:19,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:19,650 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:19,651 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-09-20 12:58:19,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b55015a/7cf068e3724f46c5928e056875dd1d73/FLAG50ba17eb0 [2019-09-20 12:58:20,181 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:20,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2019-09-20 12:58:20,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b55015a/7cf068e3724f46c5928e056875dd1d73/FLAG50ba17eb0 [2019-09-20 12:58:20,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b55015a/7cf068e3724f46c5928e056875dd1d73 [2019-09-20 12:58:20,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:20,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:20,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:20,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:20,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:20,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2ae96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20, skipping insertion in model container [2019-09-20 12:58:20,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,590 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:20,607 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:20,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:20,798 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:20,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:20,824 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:20,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20 WrapperNode [2019-09-20 12:58:20,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:20,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:20,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:20,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:20,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (1/1) ... [2019-09-20 12:58:20,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:20,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:20,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:20,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:20,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (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 [2019-09-20 12:58:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:21,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:21,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:58:21,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 12:58:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:58:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:21,211 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:21,211 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 12:58:21,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:21 BoogieIcfgContainer [2019-09-20 12:58:21,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:21,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:21,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:21,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:21,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:20" (1/3) ... [2019-09-20 12:58:21,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d73a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:21, skipping insertion in model container [2019-09-20 12:58:21,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:20" (2/3) ... [2019-09-20 12:58:21,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d73a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:21, skipping insertion in model container [2019-09-20 12:58:21,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:21" (3/3) ... [2019-09-20 12:58:21,222 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2019-09-20 12:58:21,234 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:21,243 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:21,265 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:21,319 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:21,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:21,321 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:21,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:21,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:21,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:21,321 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:21,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:21,322 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-20 12:58:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 12:58:21,352 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:21,354 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:21,356 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:21,361 INFO L82 PathProgramCache]: Analyzing trace with hash -158879193, now seen corresponding path program 1 times [2019-09-20 12:58:21,362 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:21,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:21,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:21,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:21,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:21,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:21,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 12:58:21,579 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 12:58:21,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 12:58:21,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:21,592 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2019-09-20 12:58:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:21,723 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2019-09-20 12:58:21,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 12:58:21,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-09-20 12:58:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:21,732 INFO L225 Difference]: With dead ends: 45 [2019-09-20 12:58:21,732 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:58:21,736 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-20 12:58:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:58:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:58:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:58:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:58:21,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-09-20 12:58:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:21,765 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:58:21,765 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 12:58:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:58:21,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:58:21,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:58:21,808 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:58:21,809 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:21,809 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:21,809 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:58:21,809 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:21,810 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:21,810 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2019-09-20 12:58:21,810 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2019-09-20 12:58:21,810 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2019-09-20 12:58:21,811 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2019-09-20 12:58:21,811 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-09-20 12:58:21,811 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2019-09-20 12:58:21,811 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (<= 1 main_~l~0) [2019-09-20 12:58:21,811 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 10 24) no Hoare annotation was computed. [2019-09-20 12:58:21,812 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2019-09-20 12:58:21,812 INFO L443 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-09-20 12:58:21,812 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2019-09-20 12:58:21,813 INFO L443 ceAbstractionStarter]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2019-09-20 12:58:21,813 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-09-20 12:58:21,813 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-20 12:58:21,813 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:21,813 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-20 12:58:21,814 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-20 12:58:21,814 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-20 12:58:21,814 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:21,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:21 BoogieIcfgContainer [2019-09-20 12:58:21,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:21,836 INFO L168 Benchmark]: Toolchain (without parser) took 1261.39 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 87.5 MB in the beginning and 125.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,838 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.44 ms. Allocated memory is still 131.6 MB. Free memory was 87.3 MB in the beginning and 78.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,840 INFO L168 Benchmark]: Boogie Preprocessor took 117.70 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 78.1 MB in the beginning and 173.1 MB in the end (delta: -95.0 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,841 INFO L168 Benchmark]: RCFGBuilder took 270.01 ms. Allocated memory is still 196.6 MB. Free memory was 173.1 MB in the beginning and 159.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,842 INFO L168 Benchmark]: TraceAbstraction took 618.52 ms. Allocated memory is still 196.6 MB. Free memory was 159.3 MB in the beginning and 125.7 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:21,846 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.44 ms. Allocated memory is still 131.6 MB. Free memory was 87.3 MB in the beginning and 78.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.70 ms. Allocated memory was 131.6 MB in the beginning and 196.6 MB in the end (delta: 65.0 MB). Free memory was 78.1 MB in the beginning and 173.1 MB in the end (delta: -95.0 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 270.01 ms. Allocated memory is still 196.6 MB. Free memory was 173.1 MB in the beginning and 159.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 618.52 ms. Allocated memory is still 196.6 MB. Free memory was 159.3 MB in the beginning and 125.7 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 <= l - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 21 SDslu, 71 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 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 correct! Received shutdown request...