java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 21:56:19,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 21:56:19,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 21:56:19,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 21:56:19,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 21:56:19,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 21:56:19,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 21:56:19,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 21:56:19,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 21:56:19,512 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 21:56:19,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 21:56:19,514 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 21:56:19,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 21:56:19,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 21:56:19,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 21:56:19,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 21:56:19,522 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 21:56:19,524 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 21:56:19,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 21:56:19,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 21:56:19,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-20 21:56:19,530 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-20 21:56:19,530 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-20 21:56:19,531 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-20 21:56:19,532 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-20 21:56:19,533 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-20 21:56:19,534 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-20 21:56:19,534 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-20 21:56:19,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-20 21:56:19,535 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 21:56:19,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 21:56:19,536 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 21:56:19,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 21:56:19,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 21:56:19,545 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 21:56:19,545 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 21:56:19,545 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 21:56:19,546 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 21:56:19,546 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 21:56:19,546 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 21:56:19,546 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 21:56:19,546 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 21:56:19,546 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 21:56:19,547 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 21:56:19,548 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 21:56:19,548 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 21:56:19,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 21:56:19,548 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 21:56:19,548 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 21:56:19,548 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 21:56:19,549 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 21:56:19,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 21:56:19,549 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 21:56:19,549 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 21:56:19,549 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 21:56:19,549 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 21:56:19,550 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 21:56:19,550 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 21:56:19,550 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 21:56:19,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 21:56:19,550 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 21:56:19,551 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 21:56:19,551 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 21:56:19,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 21:56:19,599 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 21:56:19,603 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 21:56:19,605 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 21:56:19,606 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 21:56:19,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i [2018-01-20 21:56:19,779 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 21:56:19,784 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 21:56:19,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 21:56:19,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 21:56:19,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 21:56:19,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:19,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adf5c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19, skipping insertion in model container [2018-01-20 21:56:19,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:19,812 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:56:19,852 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:56:19,961 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:56:19,975 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:56:19,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19 WrapperNode [2018-01-20 21:56:19,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 21:56:19,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 21:56:19,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 21:56:19,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 21:56:19,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:19,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... [2018-01-20 21:56:20,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 21:56:20,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 21:56:20,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 21:56:20,010 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 21:56:20,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (1/1) ... No working directory specified, using /storage/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 [2018-01-20 21:56:20,065 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 21:56:20,065 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 21:56:20,066 INFO L136 BoogieDeclarations]: Found implementation of procedure strlen_rec [2018-01-20 21:56:20,066 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure strlen_rec [2018-01-20 21:56:20,066 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 21:56:20,067 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 21:56:20,067 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 21:56:20,221 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 21:56:20,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:56:20 BoogieIcfgContainer [2018-01-20 21:56:20,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 21:56:20,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 21:56:20,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 21:56:20,225 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 21:56:20,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:56:19" (1/3) ... [2018-01-20 21:56:20,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51801dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:56:20, skipping insertion in model container [2018-01-20 21:56:20,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:56:19" (2/3) ... [2018-01-20 21:56:20,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51801dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:56:20, skipping insertion in model container [2018-01-20 21:56:20,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:56:20" (3/3) ... [2018-01-20 21:56:20,228 INFO L105 eAbstractionObserver]: Analyzing ICFG rec_strlen-alloca_true-valid-memsafety_true-termination.i [2018-01-20 21:56:20,236 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 21:56:20,242 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-20 21:56:20,294 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:56:20,294 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:56:20,294 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:56:20,294 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:56:20,294 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:56:20,294 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:56:20,295 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:56:20,295 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 21:56:20,296 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:56:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-20 21:56:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 21:56:20,321 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:56:20,322 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 21:56:20,322 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 21:56:20,328 INFO L82 PathProgramCache]: Analyzing trace with hash 61506, now seen corresponding path program 1 times [2018-01-20 21:56:20,330 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:56:20,331 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:56:20,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,387 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:56:20,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:56:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:56:20,438 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:56:20,444 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:56:20,449 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:56:20,449 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:56:20,450 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:56:20,450 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:56:20,450 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:56:20,450 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:56:20,450 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:56:20,450 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 21:56:20,450 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:56:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-20 21:56:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-20 21:56:20,454 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:56:20,454 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:56:20,454 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:56:20,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1639648714, now seen corresponding path program 1 times [2018-01-20 21:56:20,454 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:56:20,454 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:56:20,456 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,456 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:56:20,456 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:56:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:56:20,516 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:56:20,520 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:56:20,522 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:56:20,523 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:56:20,523 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:56:20,534 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:56:20,534 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:56:20,534 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:56:20,534 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:56:20,535 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:56:20,535 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:56:20,535 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:56:20,535 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 21:56:20,535 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:56:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-20 21:56:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-20 21:56:20,538 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:56:20,538 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:56:20,538 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 21:56:20,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2017346409, now seen corresponding path program 1 times [2018-01-20 21:56:20,539 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:56:20,539 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:56:20,540 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,540 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:56:20,540 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:56:20,569 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:56:20,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:56:20,776 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:56:20,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-20 21:56:20,777 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 21:56:20,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 21:56:20,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 21:56:20,789 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2018-01-20 21:56:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:56:20,904 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-01-20 21:56:20,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:56:20,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-20 21:56:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:56:20,912 INFO L225 Difference]: With dead ends: 29 [2018-01-20 21:56:20,912 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:56:20,914 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:56:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:56:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:56:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:56:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:56:20,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-01-20 21:56:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:56:20,935 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:56:20,935 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 21:56:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:56:20,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:56:20,938 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:56:20,938 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:56:20,938 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:56:20,938 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:56:20,938 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:56:20,938 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:56:20,939 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:56:20,939 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == strlen_recErr0EnsuresViolation======== [2018-01-20 21:56:20,939 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:56:20,940 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-20 21:56:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-20 21:56:20,941 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:56:20,941 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:56:20,942 INFO L371 AbstractCegarLoop]: === Iteration 1 === [strlen_recErr0EnsuresViolation]=== [2018-01-20 21:56:20,942 INFO L82 PathProgramCache]: Analyzing trace with hash 605559361, now seen corresponding path program 1 times [2018-01-20 21:56:20,942 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:56:20,942 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:56:20,943 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,944 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:56:20,944 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:56:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:56:20,955 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:56:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:56:20,971 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:56:20,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-01-20 21:56:20,971 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-20 21:56:20,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-20 21:56:20,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:56:20,972 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-01-20 21:56:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:56:20,975 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-01-20 21:56:20,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-20 21:56:20,975 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-20 21:56:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:56:20,976 INFO L225 Difference]: With dead ends: 29 [2018-01-20 21:56:20,976 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:56:20,977 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-20 21:56:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:56:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:56:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:56:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:56:20,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-20 21:56:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:56:20,978 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:56:20,978 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-20 21:56:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:56:20,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:56:20,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:56:20 BoogieIcfgContainer [2018-01-20 21:56:20,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 21:56:20,982 INFO L168 Benchmark]: Toolchain (without parser) took 1202.55 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 261.9 MB in the beginning and 410.4 MB in the end (delta: -148.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 5.3 GB. [2018-01-20 21:56:20,983 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:56:20,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.81 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 251.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-01-20 21:56:20,984 INFO L168 Benchmark]: Boogie Preprocessor took 28.71 ms. Allocated memory is still 303.6 MB. Free memory was 251.8 MB in the beginning and 249.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 21:56:20,984 INFO L168 Benchmark]: RCFGBuilder took 211.94 ms. Allocated memory is still 303.6 MB. Free memory was 249.8 MB in the beginning and 236.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-01-20 21:56:20,984 INFO L168 Benchmark]: TraceAbstraction took 758.61 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 236.2 MB in the beginning and 410.4 MB in the end (delta: -174.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:56:20,986 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 195.81 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 251.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.71 ms. Allocated memory is still 303.6 MB. Free memory was 251.8 MB in the beginning and 249.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 211.94 ms. Allocated memory is still 303.6 MB. Free memory was 249.8 MB in the beginning and 236.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 758.61 ms. Allocated memory was 303.6 MB in the beginning and 457.7 MB in the end (delta: 154.1 MB). Free memory was 236.2 MB in the beginning and 410.4 MB in the end (delta: -174.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 29 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L547] int length1 = __VERIFIER_nondet_int(); [L548] COND TRUE length1 < 1 [L549] length1 = 1 VAL [length1=1] [L551] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) VAL [__builtin_alloca (length1 * sizeof(char))={2:0}, length1=1] [L551] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); VAL [__builtin_alloca (length1 * sizeof(char))={2:0}, length1=1, nondetString1={2:0}] [L552] FCALL nondetString1[length1-1] = '\0' VAL [__builtin_alloca (length1 * sizeof(char))={2:0}, length1=1, nondetString1={2:0}] [L553] CALL strlen_rec(nondetString1) VAL [p={2:0}] [L541] EXPR, FCALL \read(*p) VAL [\read(*p)=0, p={2:0}, p={2:0}] [L541] COND TRUE *p == '\0' [L542] RET return 0; VAL [\result=0, p={2:0}, p={2:0}] [L553] strlen_rec(nondetString1) - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 29 locations, 4 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 546]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 29 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 35 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: strlen_recErr0EnsuresViolation CFG has 4 procedures, 29 locations, 4 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_21-56-20-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_21-56-20-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_21-56-20-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_21-56-20-995.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_21-56-20-995.csv Received shutdown request...