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/ldv-regression/alias_of_return.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 10:17:48,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 10:17:48,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 10:17:48,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 10:17:48,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 10:17:48,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 10:17:48,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 10:17:48,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 10:17:48,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 10:17:48,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 10:17:48,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 10:17:48,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 10:17:48,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 10:17:48,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 10:17:48,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 10:17:48,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 10:17:48,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 10:17:48,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 10:17:48,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 10:17:48,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 10:17:48,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 10:17:48,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 10:17:48,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 10:17:48,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 10:17:48,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 10:17:48,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 10:17:48,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 10:17:48,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 10:17:48,709 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 [2019-10-02 10:17:48,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 10:17:48,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 10:17:48,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 10:17:48,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 10:17:48,741 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 10:17:48,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 10:17:48,742 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 10:17:48,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 10:17:48,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 10:17:48,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 10:17:48,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 10:17:48,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 10:17:48,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 10:17:48,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 10:17:48,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 10:17:48,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 10:17:48,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 10:17:48,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 10:17:48,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 10:17:48,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 10:17:48,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 10:17:48,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:17:48,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 10:17:48,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 10:17:48,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 10:17:48,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 10:17:48,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 10:17:48,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 10:17:48,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 10:17:48,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 10:17:48,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 10:17:48,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 10:17:48,837 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 10:17:48,837 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 10:17:48,838 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-10-02 10:17:48,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea2f672a/cdb07e6207f8466dbd4907929235df58/FLAGecc194264 [2019-10-02 10:17:49,346 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 10:17:49,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-10-02 10:17:49,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea2f672a/cdb07e6207f8466dbd4907929235df58/FLAGecc194264 [2019-10-02 10:17:49,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea2f672a/cdb07e6207f8466dbd4907929235df58 [2019-10-02 10:17:49,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 10:17:49,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 10:17:49,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 10:17:49,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 10:17:49,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 10:17:49,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:49" (1/1) ... [2019-10-02 10:17:49,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b70ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:49, skipping insertion in model container [2019-10-02 10:17:49,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:49" (1/1) ... [2019-10-02 10:17:49,782 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 10:17:49,800 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 10:17:49,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:17:49,975 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 10:17:49,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:17:50,001 INFO L192 MainTranslator]: Completed translation [2019-10-02 10:17:50,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50 WrapperNode [2019-10-02 10:17:50,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 10:17:50,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 10:17:50,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 10:17:50,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 10:17:50,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 10:17:50,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 10:17:50,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 10:17:50,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 10:17:50,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 10:17:50,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (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 [2019-10-02 10:17:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 10:17:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 10:17:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-10-02 10:17:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-10-02 10:17:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 10:17:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 10:17:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-10-02 10:17:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-10-02 10:17:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 10:17:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 10:17:50,391 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 10:17:50,392 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 10:17:50,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:50 BoogieIcfgContainer [2019-10-02 10:17:50,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 10:17:50,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 10:17:50,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 10:17:50,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 10:17:50,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:17:49" (1/3) ... [2019-10-02 10:17:50,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3257a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:50, skipping insertion in model container [2019-10-02 10:17:50,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (2/3) ... [2019-10-02 10:17:50,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3257a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:50, skipping insertion in model container [2019-10-02 10:17:50,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:50" (3/3) ... [2019-10-02 10:17:50,422 INFO L109 eAbstractionObserver]: Analyzing ICFG alias_of_return.i [2019-10-02 10:17:50,443 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 10:17:50,457 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 10:17:50,476 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 10:17:50,503 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 10:17:50,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 10:17:50,503 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 10:17:50,504 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 10:17:50,504 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 10:17:50,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 10:17:50,504 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 10:17:50,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 10:17:50,504 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 10:17:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-02 10:17:50,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 10:17:50,527 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:17:50,528 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:17:50,530 INFO L418 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:17:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:17:50,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1496730974, now seen corresponding path program 1 times [2019-10-02 10:17:50,537 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:17:50,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:17:50,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:17:50,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:17:50,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:17:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:17:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:17:50,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:17:50,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 10:17:50,771 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 10:17:50,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 10:17:50,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:17:50,790 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-02 10:17:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:17:50,852 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2019-10-02 10:17:50,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 10:17:50,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-02 10:17:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:17:50,863 INFO L225 Difference]: With dead ends: 27 [2019-10-02 10:17:50,863 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 10:17:50,868 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:17:50,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 10:17:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 10:17:50,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 10:17:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 10:17:50,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-02 10:17:50,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:17:50,902 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 10:17:50,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 10:17:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 10:17:50,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 10:17:50,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 10:17:50,936 INFO L446 ceAbstractionStarter]: At program point return_selfENTRY(lines 11 14) the Hoare annotation is: true [2019-10-02 10:17:50,937 INFO L443 ceAbstractionStarter]: For program point return_selfFINAL(lines 11 14) no Hoare annotation was computed. [2019-10-02 10:17:50,937 INFO L443 ceAbstractionStarter]: For program point return_selfEXIT(lines 11 14) no Hoare annotation was computed. [2019-10-02 10:17:50,937 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:17:50,937 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:17:50,937 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:17:50,938 INFO L443 ceAbstractionStarter]: For program point errEXIT(lines 7 8) no Hoare annotation was computed. [2019-10-02 10:17:50,938 INFO L446 ceAbstractionStarter]: At program point errENTRY(lines 7 8) the Hoare annotation is: true [2019-10-02 10:17:50,938 INFO L443 ceAbstractionStarter]: For program point errFINAL(lines 7 8) no Hoare annotation was computed. [2019-10-02 10:17:50,938 INFO L443 ceAbstractionStarter]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-10-02 10:17:50,939 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:17:50,939 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 10:17:50,939 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:17:50,939 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:17:50,940 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 30) the Hoare annotation is: true [2019-10-02 10:17:50,940 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-10-02 10:17:50,940 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 30) no Hoare annotation was computed. [2019-10-02 10:17:50,940 INFO L439 ceAbstractionStarter]: At program point L29-1(line 29) the Hoare annotation is: false [2019-10-02 10:17:50,940 INFO L443 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2019-10-02 10:17:50,941 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 30) no Hoare annotation was computed. [2019-10-02 10:17:50,941 INFO L446 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: true [2019-10-02 10:17:50,941 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-10-02 10:17:50,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:17:50 BoogieIcfgContainer [2019-10-02 10:17:50,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 10:17:50,949 INFO L168 Benchmark]: Toolchain (without parser) took 1182.46 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.5 MB in the beginning and 135.3 MB in the end (delta: -47.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,950 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 132.6 MB. Free memory was 105.6 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.38 ms. Allocated memory is still 132.6 MB. Free memory was 87.2 MB in the beginning and 77.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,953 INFO L168 Benchmark]: Boogie Preprocessor took 107.44 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 77.7 MB in the beginning and 176.6 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,953 INFO L168 Benchmark]: RCFGBuilder took 283.29 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 163.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,954 INFO L168 Benchmark]: TraceAbstraction took 541.49 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 135.3 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-10-02 10:17:50,958 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 132.6 MB. Free memory was 105.6 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.38 ms. Allocated memory is still 132.6 MB. Free memory was 87.2 MB in the beginning and 77.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.44 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 77.7 MB in the beginning and 176.6 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 283.29 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 163.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 541.49 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 135.3 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 34 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 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, 429 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...