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/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrlen_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 08:22:11,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 08:22:11,323 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 08:22:11,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 08:22:11,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 08:22:11,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 08:22:11,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 08:22:11,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 08:22:11,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 08:22:11,354 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 08:22:11,355 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 08:22:11,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 08:22:11,357 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 08:22:11,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 08:22:11,359 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 08:22:11,370 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 08:22:11,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 08:22:11,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 08:22:11,375 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 08:22:11,378 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 08:22:11,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-31 08:22:11,387 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 08:22:11,388 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 08:22:11,388 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-31 08:22:11,399 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 08:22:11,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 08:22:11,401 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 08:22:11,406 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 08:22:11,406 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 08:22:11,407 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 08:22:11,407 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 08:22:11,407 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 08:22:11,408 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 08:22:11,409 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 08:22:11,409 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 08:22:11,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 08:22:11,409 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 08:22:11,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 08:22:11,410 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 08:22:11,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 08:22:11,410 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 08:22:11,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 08:22:11,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:22:11,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 08:22:11,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 08:22:11,412 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 08:22:11,414 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 08:22:11,414 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 08:22:11,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 08:22:11,489 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 08:22:11,493 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 08:22:11,495 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 08:22:11,495 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 08:22:11,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrlen_unsafe_false-valid-deref.i [2018-01-31 08:22:11,704 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 08:22:11,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 08:22:11,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 08:22:11,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 08:22:11,721 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 08:22:11,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:22:11" (1/1) ... [2018-01-31 08:22:11,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5ea42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:11, skipping insertion in model container [2018-01-31 08:22:11,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:22:11" (1/1) ... [2018-01-31 08:22:11,747 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:22:11,811 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:22:11,971 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:22:11,994 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:22:12,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12 WrapperNode [2018-01-31 08:22:12,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 08:22:12,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 08:22:12,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 08:22:12,005 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 08:22:12,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (1/1) ... [2018-01-31 08:22:12,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 08:22:12,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 08:22:12,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 08:22:12,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 08:22:12,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (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 [2018-01-31 08:22:12,124 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 08:22:12,125 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 08:22:12,125 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-31 08:22:12,125 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-01-31 08:22:12,125 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 08:22:12,125 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-31 08:22:12,126 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 08:22:12,127 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-31 08:22:12,127 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-01-31 08:22:12,127 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 08:22:12,127 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 08:22:12,127 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 08:22:12,578 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 08:22:12,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:22:12 BoogieIcfgContainer [2018-01-31 08:22:12,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 08:22:12,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 08:22:12,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 08:22:12,583 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 08:22:12,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:22:11" (1/3) ... [2018-01-31 08:22:12,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddc7b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:22:12, skipping insertion in model container [2018-01-31 08:22:12,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:22:12" (2/3) ... [2018-01-31 08:22:12,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddc7b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:22:12, skipping insertion in model container [2018-01-31 08:22:12,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:22:12" (3/3) ... [2018-01-31 08:22:12,587 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrlen_unsafe_false-valid-deref.i [2018-01-31 08:22:12,597 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 08:22:12,605 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-31 08:22:12,652 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 08:22:12,652 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 08:22:12,652 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 08:22:12,652 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 08:22:12,653 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 08:22:12,653 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 08:22:12,653 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 08:22:12,653 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 08:22:12,654 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 08:22:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-01-31 08:22:12,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-31 08:22:12,684 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:22:12,685 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:22:12,686 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 08:22:12,693 INFO L82 PathProgramCache]: Analyzing trace with hash 408603148, now seen corresponding path program 1 times [2018-01-31 08:22:12,695 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:22:12,695 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:22:12,750 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:12,750 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:22:12,751 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:22:12,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:22:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:22:13,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:22:13,035 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 08:22:13,038 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 08:22:13,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 08:22:13,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 08:22:13,055 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 4 states. [2018-01-31 08:22:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:22:13,247 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2018-01-31 08:22:13,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 08:22:13,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-01-31 08:22:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:22:13,355 INFO L225 Difference]: With dead ends: 63 [2018-01-31 08:22:13,355 INFO L226 Difference]: Without dead ends: 44 [2018-01-31 08:22:13,360 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 08:22:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-01-31 08:22:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-01-31 08:22:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-01-31 08:22:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-01-31 08:22:13,392 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 14 [2018-01-31 08:22:13,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:22:13,393 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-01-31 08:22:13,393 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 08:22:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-01-31 08:22:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-31 08:22:13,394 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:22:13,394 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:22:13,394 INFO L371 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 08:22:13,394 INFO L82 PathProgramCache]: Analyzing trace with hash 408603149, now seen corresponding path program 1 times [2018-01-31 08:22:13,394 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:22:13,395 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:22:13,396 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:13,396 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:22:13,396 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:22:13,412 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:22:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:22:13,771 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:22:13,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 08:22:13,773 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 08:22:13,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 08:22:13,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 08:22:13,776 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 5 states. [2018-01-31 08:22:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:22:13,918 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-01-31 08:22:13,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-31 08:22:13,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-31 08:22:13,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:22:13,920 INFO L225 Difference]: With dead ends: 44 [2018-01-31 08:22:13,920 INFO L226 Difference]: Without dead ends: 43 [2018-01-31 08:22:13,921 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-31 08:22:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-01-31 08:22:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-01-31 08:22:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-01-31 08:22:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-01-31 08:22:13,927 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 14 [2018-01-31 08:22:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:22:13,929 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-01-31 08:22:13,929 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 08:22:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-01-31 08:22:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-31 08:22:13,930 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:22:13,930 INFO L351 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, 1, 1] [2018-01-31 08:22:13,930 INFO L371 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 08:22:13,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1810077136, now seen corresponding path program 1 times [2018-01-31 08:22:13,931 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:22:13,931 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:22:13,932 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:13,934 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:22:13,934 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:22:13,967 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:22:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:22:14,189 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:22:14,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-31 08:22:14,189 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-31 08:22:14,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-31 08:22:14,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-31 08:22:14,190 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 9 states. [2018-01-31 08:22:14,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:22:14,488 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2018-01-31 08:22:14,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-31 08:22:14,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-01-31 08:22:14,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:22:14,490 INFO L225 Difference]: With dead ends: 43 [2018-01-31 08:22:14,490 INFO L226 Difference]: Without dead ends: 41 [2018-01-31 08:22:14,491 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-01-31 08:22:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-31 08:22:14,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-31 08:22:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-31 08:22:14,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-01-31 08:22:14,498 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 24 [2018-01-31 08:22:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:22:14,498 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-01-31 08:22:14,498 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-31 08:22:14,498 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-01-31 08:22:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-31 08:22:14,499 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:22:14,500 INFO L351 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, 1, 1] [2018-01-31 08:22:14,500 INFO L371 AbstractCegarLoop]: === Iteration 4 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 08:22:14,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1810077135, now seen corresponding path program 1 times [2018-01-31 08:22:14,501 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:22:14,501 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:22:14,502 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:14,502 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:22:14,502 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 08:22:14,517 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 08:22:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 08:22:15,120 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 08:22:15,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-31 08:22:15,121 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-31 08:22:15,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-31 08:22:15,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-01-31 08:22:15,122 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 12 states. [2018-01-31 08:22:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 08:22:15,348 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2018-01-31 08:22:15,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-31 08:22:15,348 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2018-01-31 08:22:15,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 08:22:15,352 INFO L225 Difference]: With dead ends: 51 [2018-01-31 08:22:15,352 INFO L226 Difference]: Without dead ends: 49 [2018-01-31 08:22:15,353 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-01-31 08:22:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-01-31 08:22:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2018-01-31 08:22:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-01-31 08:22:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-01-31 08:22:15,359 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 24 [2018-01-31 08:22:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 08:22:15,360 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-01-31 08:22:15,360 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-31 08:22:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-01-31 08:22:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-31 08:22:15,361 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:22:15,362 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:22:15,362 INFO L371 AbstractCegarLoop]: === Iteration 5 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 08:22:15,362 INFO L82 PathProgramCache]: Analyzing trace with hash -771421690, now seen corresponding path program 1 times [2018-01-31 08:22:15,362 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:22:15,362 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:22:15,363 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:15,363 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:22:15,363 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:22:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:22:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:22:15,421 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 08:22:15,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:22:15 BoogieIcfgContainer [2018-01-31 08:22:15,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 08:22:15,451 INFO L168 Benchmark]: Toolchain (without parser) took 3745.67 ms. Allocated memory was 307.2 MB in the beginning and 467.7 MB in the end (delta: 160.4 MB). Free memory was 266.0 MB in the beginning and 334.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 91.8 MB. Max. memory is 5.3 GB. [2018-01-31 08:22:15,452 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 307.2 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:22:15,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.42 ms. Allocated memory is still 307.2 MB. Free memory was 266.0 MB in the beginning and 256.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:22:15,452 INFO L168 Benchmark]: Boogie Preprocessor took 41.74 ms. Allocated memory is still 307.2 MB. Free memory was 256.0 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:22:15,453 INFO L168 Benchmark]: RCFGBuilder took 531.54 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 237.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:22:15,453 INFO L168 Benchmark]: TraceAbstraction took 2870.19 ms. Allocated memory was 307.2 MB in the beginning and 467.7 MB in the end (delta: 160.4 MB). Free memory was 237.0 MB in the beginning and 334.6 MB in the end (delta: -97.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 5.3 GB. [2018-01-31 08:22:15,455 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 307.2 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 290.42 ms. Allocated memory is still 307.2 MB. Free memory was 266.0 MB in the beginning and 256.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.74 ms. Allocated memory is still 307.2 MB. Free memory was 256.0 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 531.54 ms. Allocated memory is still 307.2 MB. Free memory was 254.0 MB in the beginning and 237.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2870.19 ms. Allocated memory was 307.2 MB in the beginning and 467.7 MB in the end (delta: 160.4 MB). Free memory was 237.0 MB in the beginning and 334.6 MB in the end (delta: -97.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L557] CALL, EXPR build_nondet_String() [L541] int length = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2, length=2] [L542] COND FALSE !(length < 1) VAL [length=2] [L545] EXPR, FCALL malloc(length * sizeof(char)) VAL [length=2, malloc(length * sizeof(char))={4:0}] [L545] char* nondetString = (char*) malloc(length * sizeof(char)); VAL [length=2, malloc(length * sizeof(char))={4:0}, nondetString={4:0}] [L546] FCALL nondetString[length-1] = '\0' VAL [length=2, malloc(length * sizeof(char))={4:0}, nondetString={4:0}] [L547] RET return nondetString; VAL [\result={4:0}, length=2, malloc(length * sizeof(char))={4:0}, nondetString={4:0}] [L557] EXPR build_nondet_String() VAL [build_nondet_String()={4:0}] [L557] char* p = build_nondet_String(); VAL [build_nondet_String()={4:0}, p={4:0}] [L558] CALL cstrlen(p) VAL [s={4:0}] [L551] const char *p = s; VAL [p={4:0}, s={4:0}, s={4:0}] [L552] EXPR, FCALL \read(*p) VAL [\read(*p)=5, p={4:0}, s={4:0}, s={4:0}] [L552] COND TRUE *p != '\0' VAL [\read(*p)=5, p={4:0}, s={4:0}, s={4:0}] [L553] p = p+2 VAL [p={4:2}, s={4:0}, s={4:0}] [L552] FCALL \read(*p) VAL [p={4:2}, s={4:0}, s={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 7 error locations. UNSAFE Result, 2.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 145 SDtfs, 122 SDslu, 446 SDs, 0 SdLazy, 238 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 5124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: 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/cstrlen_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_08-22-15-463.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_08-22-15-463.csv Received shutdown request...