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/sum01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:57:33,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:57:33,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:57:33,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 12:57:33,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:57:33,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:57:33,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:57:33,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:57:33,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:57:33,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:57:33,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:57:33,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:57:33,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:57:33,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:57:33,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:57:33,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:57:33,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:57:33,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:57:33,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:57:33,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:57:33,584 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 12:57:33,610 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:57:33,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:57:33,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:57:33,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:57:33,614 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:57:33,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:57:33,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:57:33,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:57:33,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:57:33,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:57:33,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:57:33,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:57:33,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:57:33,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:57:33,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:57:33,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:57:33,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:57:33,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:57:33,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:57:33,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:57:33,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:57:33,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:33,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:57:33,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:57:33,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:57:33,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:57:33,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:57:33,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:57:33,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:57:33,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:57:33,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:57:33,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:57:33,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:57:33,702 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:57:33,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01-2.i [2019-09-20 12:57:33,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb5ccc5c/7fd34022268d47b0b2b4bca649ed6bfc/FLAG3f55f5ada [2019-09-20 12:57:34,264 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:57:34,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01-2.i [2019-09-20 12:57:34,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb5ccc5c/7fd34022268d47b0b2b4bca649ed6bfc/FLAG3f55f5ada [2019-09-20 12:57:34,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb5ccc5c/7fd34022268d47b0b2b4bca649ed6bfc [2019-09-20 12:57:34,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:57:34,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:57:34,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:34,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:57:34,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:57:34,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:34,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27911591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34, skipping insertion in model container [2019-09-20 12:57:34,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:34,683 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:57:34,696 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:57:34,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:34,859 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:57:34,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:34,891 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:57:34,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34 WrapperNode [2019-09-20 12:57:34,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:34,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:57:34,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:57:34,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:57:34,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:34,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:34,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:35,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:35,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:35,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:35,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (1/1) ... [2019-09-20 12:57:35,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:57:35,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:57:35,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:57:35,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:57:35,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (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 12:57:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:57:35,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:57:35,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:57:35,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:57:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:57:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 12:57:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:57:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:57:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:57:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:57:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:57:35,240 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:57:35,240 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:57:35,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:35 BoogieIcfgContainer [2019-09-20 12:57:35,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:57:35,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:57:35,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:57:35,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:57:35,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:57:34" (1/3) ... [2019-09-20 12:57:35,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f04c00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:35, skipping insertion in model container [2019-09-20 12:57:35,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:34" (2/3) ... [2019-09-20 12:57:35,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f04c00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:35, skipping insertion in model container [2019-09-20 12:57:35,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:35" (3/3) ... [2019-09-20 12:57:35,250 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2019-09-20 12:57:35,260 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:57:35,267 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:57:35,288 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:57:35,329 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:57:35,330 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:57:35,330 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:57:35,331 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:57:35,331 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:57:35,331 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:57:35,332 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:57:35,332 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:57:35,332 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:57:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-20 12:57:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 12:57:35,364 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:35,365 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:35,368 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:35,375 INFO L82 PathProgramCache]: Analyzing trace with hash 579653156, now seen corresponding path program 1 times [2019-09-20 12:57:35,377 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:35,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:35,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:35,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:35,500 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 12:57:35,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:35,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:57:35,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:57:35,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:57:35,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:35,518 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-20 12:57:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:35,538 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-09-20 12:57:35,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:57:35,539 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-20 12:57:35,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:35,546 INFO L225 Difference]: With dead ends: 30 [2019-09-20 12:57:35,546 INFO L226 Difference]: Without dead ends: 13 [2019-09-20 12:57:35,550 INFO L636 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 [2019-09-20 12:57:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-20 12:57:35,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-20 12:57:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-20 12:57:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-20 12:57:35,589 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-20 12:57:35,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:35,590 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-20 12:57:35,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:57:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-20 12:57:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 12:57:35,591 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:35,591 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:35,592 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:35,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:35,592 INFO L82 PathProgramCache]: Analyzing trace with hash 574112030, now seen corresponding path program 1 times [2019-09-20 12:57:35,592 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:35,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:35,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:35,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:35,714 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 12:57:35,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:35,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:57:35,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:57:35,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:57:35,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:57:35,718 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-09-20 12:57:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:35,766 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-09-20 12:57:35,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 12:57:35,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-20 12:57:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:35,768 INFO L225 Difference]: With dead ends: 19 [2019-09-20 12:57:35,769 INFO L226 Difference]: Without dead ends: 14 [2019-09-20 12:57:35,770 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:57:35,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-20 12:57:35,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-20 12:57:35,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-20 12:57:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-09-20 12:57:35,775 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-09-20 12:57:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:35,775 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-09-20 12:57:35,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:57:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-09-20 12:57:35,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 12:57:35,777 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:35,777 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:35,777 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:35,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:35,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1164206820, now seen corresponding path program 1 times [2019-09-20 12:57:35,778 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:35,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:35,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:35,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:36,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:57:36,059 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 12:57:36,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:36,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-20 12:57:36,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:36,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:36,302 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:57:36,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2019-09-20 12:57:36,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-20 12:57:36,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-20 12:57:36,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-09-20 12:57:36,304 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 15 states. [2019-09-20 12:57:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:36,499 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-09-20 12:57:36,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 12:57:36,501 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 13 [2019-09-20 12:57:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:36,502 INFO L225 Difference]: With dead ends: 24 [2019-09-20 12:57:36,503 INFO L226 Difference]: Without dead ends: 18 [2019-09-20 12:57:36,504 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2019-09-20 12:57:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-20 12:57:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-20 12:57:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 12:57:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-20 12:57:36,518 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 13 [2019-09-20 12:57:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:36,518 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-20 12:57:36,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-20 12:57:36,519 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-20 12:57:36,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 12:57:36,519 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:36,520 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:36,521 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:36,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2033115496, now seen corresponding path program 2 times [2019-09-20 12:57:36,521 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:36,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:36,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:36,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:36,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 12:57:36,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:57:36,746 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-20 12:57:36,763 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 12:57:36,775 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-20 12:57:36,776 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 12:57:36,777 WARN L254 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-20 12:57:36,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:36,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:37,035 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:57:37,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 20 [2019-09-20 12:57:37,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-20 12:57:37,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-20 12:57:37,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2019-09-20 12:57:37,037 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 20 states. [2019-09-20 12:57:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:37,414 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-09-20 12:57:37,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 12:57:37,415 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 17 [2019-09-20 12:57:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:37,416 INFO L225 Difference]: With dead ends: 21 [2019-09-20 12:57:37,416 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:57:37,417 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2019-09-20 12:57:37,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:57:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:57:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:57:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:57:37,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-20 12:57:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:37,419 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:57:37,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-20 12:57:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:57:37,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:57:37,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:57:37,554 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:57:37,554 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:37,555 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:37,555 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:57:37,556 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:57:37,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:57:37,556 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2019-09-20 12:57:37,556 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2019-09-20 12:57:37,557 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-09-20 12:57:37,557 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 18) no Hoare annotation was computed. [2019-09-20 12:57:37,557 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-09-20 12:57:37,557 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (and (= main_~i~0 1) (<= main_~sn~0 0) (<= 0 main_~sn~0)) (let ((.cse1 (* 2 main_~i~0)) (.cse0 (+ main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< main_~sn~0 (+ (* 2 main_~n~0) 1))))) [2019-09-20 12:57:37,558 INFO L439 ceAbstractionStarter]: At program point L14-4(lines 14 16) the Hoare annotation is: (or (= (* 2 main_~n~0) main_~sn~0) (= 0 main_~sn~0)) [2019-09-20 12:57:37,558 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-09-20 12:57:37,560 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-09-20 12:57:37,560 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-09-20 12:57:37,560 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-09-20 12:57:37,560 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-09-20 12:57:37,560 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-09-20 12:57:37,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:57:37 BoogieIcfgContainer [2019-09-20 12:57:37,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:57:37,585 INFO L168 Benchmark]: Toolchain (without parser) took 2916.86 ms. Allocated memory was 136.3 MB in the beginning and 223.3 MB in the end (delta: 87.0 MB). Free memory was 87.8 MB in the beginning and 78.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 96.7 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,586 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 136.3 MB. Free memory was 106.0 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.95 ms. Allocated memory is still 136.3 MB. Free memory was 87.6 MB in the beginning and 78.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,588 INFO L168 Benchmark]: Boogie Preprocessor took 117.47 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 78.3 MB in the beginning and 177.7 MB in the end (delta: -99.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,589 INFO L168 Benchmark]: RCFGBuilder took 231.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,590 INFO L168 Benchmark]: TraceAbstraction took 2339.44 ms. Allocated memory was 199.8 MB in the beginning and 223.3 MB in the end (delta: 23.6 MB). Free memory was 165.4 MB in the beginning and 78.2 MB in the end (delta: 87.2 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:37,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 136.3 MB. Free memory was 106.0 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 223.95 ms. Allocated memory is still 136.3 MB. Free memory was 87.6 MB in the beginning and 78.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.47 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 78.3 MB in the beginning and 177.7 MB in the end (delta: -99.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 231.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2339.44 ms. Allocated memory was 199.8 MB in the beginning and 223.3 MB in the end (delta: 23.6 MB). Free memory was 165.4 MB in the beginning and 78.2 MB in the end (delta: 87.2 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 14]: Loop Invariant Derived loop invariant: ((i == 1 && sn <= 0) && 0 <= sn) || ((sn + 2 <= 2 * i && 2 * i <= sn + 2) && sn < 2 * n + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 11 SDslu, 150 SDs, 0 SdLazy, 195 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.1s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 47 HoareAnnotationTreeSize, 12 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 6312 SizeOfPredicates, 6 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...