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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:32:21,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:32:21,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:32:21,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:32:21,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:32:21,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:32:21,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:32:21,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:32:21,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:32:21,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:32:21,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:32:21,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:32:21,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:32:21,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:32:21,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:32:21,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:32:21,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:32:21,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:32:21,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:32:21,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:32:21,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:32:21,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:32:21,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:32:21,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:32:21,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:32:21,970 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:32:21,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:32:21,970 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:32:21,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:32:21,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:32:21,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:32:21,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:32:21,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:32:21,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:32:21,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:32:21,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:32:21,972 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:32:21,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:32:21,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:32:21,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:32:21,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:32:21,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:32:21,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:32:21,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:32:21,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:32:21,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:32:21,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:32:21,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:32:21,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:32:21,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:32:22,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:32:22,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:32:22,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:32:22,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:32:22,023 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:32:22,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return.c_1.i [2019-09-08 01:32:22,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a909d0a22/a43237814dda4c76b47769ee074b0d4b/FLAG375e2d8a8 [2019-09-08 01:32:22,545 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:32:22,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return.c_1.i [2019-09-08 01:32:22,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a909d0a22/a43237814dda4c76b47769ee074b0d4b/FLAG375e2d8a8 [2019-09-08 01:32:22,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a909d0a22/a43237814dda4c76b47769ee074b0d4b [2019-09-08 01:32:22,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:32:22,930 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:32:22,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:32:22,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:32:22,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:32:22,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:32:22" (1/1) ... [2019-09-08 01:32:22,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f504c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:22, skipping insertion in model container [2019-09-08 01:32:22,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:32:22" (1/1) ... [2019-09-08 01:32:22,947 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:32:22,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:32:23,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:32:23,217 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:32:23,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:32:23,255 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:32:23,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23 WrapperNode [2019-09-08 01:32:23,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:32:23,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:32:23,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:32:23,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:32:23,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... [2019-09-08 01:32:23,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:32:23,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:32:23,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:32:23,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:32:23,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:32:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:32:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:32:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-09-08 01:32:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-09-08 01:32:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:32:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:32:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:32:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:32:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:32:23,640 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:32:23,641 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:32:23,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:32:23 BoogieIcfgContainer [2019-09-08 01:32:23,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:32:23,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:32:23,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:32:23,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:32:23,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:32:22" (1/3) ... [2019-09-08 01:32:23,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876ff9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:32:23, skipping insertion in model container [2019-09-08 01:32:23,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:32:23" (2/3) ... [2019-09-08 01:32:23,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876ff9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:32:23, skipping insertion in model container [2019-09-08 01:32:23,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:32:23" (3/3) ... [2019-09-08 01:32:23,650 INFO L109 eAbstractionObserver]: Analyzing ICFG alias_of_return.c_1.i [2019-09-08 01:32:23,659 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:32:23,666 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:32:23,683 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:32:23,713 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:32:23,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:32:23,714 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:32:23,714 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:32:23,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:32:23,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:32:23,715 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:32:23,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:32:23,715 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:32:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-08 01:32:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-08 01:32:23,737 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:32:23,738 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:32:23,740 INFO L418 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:32:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:32:23,746 INFO L82 PathProgramCache]: Analyzing trace with hash 489140804, now seen corresponding path program 1 times [2019-09-08 01:32:23,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:32:23,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:32:23,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:23,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:32:23,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:32:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:32:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:32:23,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:32:23,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 01:32:23,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 01:32:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 01:32:23,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:32:23,956 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-09-08 01:32:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:32:23,987 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-09-08 01:32:23,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 01:32:23,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-09-08 01:32:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:32:23,997 INFO L225 Difference]: With dead ends: 22 [2019-09-08 01:32:24,006 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 01:32:24,011 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:32:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 01:32:24,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 01:32:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 01:32:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 01:32:24,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-09-08 01:32:24,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:32:24,051 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 01:32:24,052 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 01:32:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 01:32:24,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 01:32:24,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 01:32:24,080 INFO L443 ceAbstractionStarter]: For program point return_selfENTRY(lines 19 22) no Hoare annotation was computed. [2019-09-08 01:32:24,080 INFO L443 ceAbstractionStarter]: For program point return_selfFINAL(lines 19 22) no Hoare annotation was computed. [2019-09-08 01:32:24,080 INFO L443 ceAbstractionStarter]: For program point return_selfEXIT(lines 19 22) no Hoare annotation was computed. [2019-09-08 01:32:24,080 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:32:24,081 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:32:24,081 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:32:24,081 INFO L443 ceAbstractionStarter]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-09-08 01:32:24,081 INFO L443 ceAbstractionStarter]: For program point errEXIT(lines 15 16) no Hoare annotation was computed. [2019-09-08 01:32:24,081 INFO L446 ceAbstractionStarter]: At program point errENTRY(lines 15 16) the Hoare annotation is: true [2019-09-08 01:32:24,081 INFO L443 ceAbstractionStarter]: For program point errFINAL(lines 15 16) no Hoare annotation was computed. [2019-09-08 01:32:24,082 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:32:24,082 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 01:32:24,082 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:32:24,082 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:32:24,082 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 24 38) the Hoare annotation is: true [2019-09-08 01:32:24,082 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 24 38) no Hoare annotation was computed. [2019-09-08 01:32:24,083 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 24 38) no Hoare annotation was computed. [2019-09-08 01:32:24,083 INFO L443 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-09-08 01:32:24,083 INFO L439 ceAbstractionStarter]: At program point L37-1(line 37) the Hoare annotation is: false [2019-09-08 01:32:24,083 INFO L443 ceAbstractionStarter]: For program point L37-3(line 37) no Hoare annotation was computed. [2019-09-08 01:32:24,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:32:24 BoogieIcfgContainer [2019-09-08 01:32:24,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:32:24,089 INFO L168 Benchmark]: Toolchain (without parser) took 1157.86 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 89.6 MB in the beginning and 142.7 MB in the end (delta: -53.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,090 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.01 ms. Allocated memory is still 133.2 MB. Free memory was 89.2 MB in the beginning and 80.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,092 INFO L168 Benchmark]: Boogie Preprocessor took 126.62 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 80.0 MB in the beginning and 176.9 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,093 INFO L168 Benchmark]: RCFGBuilder took 257.37 ms. Allocated memory is still 200.8 MB. Free memory was 176.9 MB in the beginning and 165.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,094 INFO L168 Benchmark]: TraceAbstraction took 443.32 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 142.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:32:24,098 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 133.2 MB. Free memory was 107.7 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.01 ms. Allocated memory is still 133.2 MB. Free memory was 89.2 MB in the beginning and 80.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.62 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 80.0 MB in the beginning and 176.9 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.37 ms. Allocated memory is still 200.8 MB. Free memory was 176.9 MB in the beginning and 165.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 443.32 ms. Allocated memory is still 200.8 MB. Free memory was 165.0 MB in the beginning and 142.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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, 20 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 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...