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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:57:45,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:57:45,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:57:45,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:57:45,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:57:45,590 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:57:45,591 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:57:45,593 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:57:45,594 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:57:45,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:57:45,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:57:45,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:57:45,596 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:57:45,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:57:45,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:57:45,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:57:45,601 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:57:45,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:57:45,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:57:45,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:57:45,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:57:45,606 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:57:45,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:57:45,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:57:45,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:57:45,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:57:45,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:57:45,609 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:57:45,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:57:45,610 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:57:45,611 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:57:45,611 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-10 16:57:45,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:57:45,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:57:45,629 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:57:45,629 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:57:45,629 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:57:45,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:57:45,629 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:57:45,630 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:57:45,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:57:45,631 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:57:45,631 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-10 16:57:45,632 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-10 16:57:45,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 16:57:45,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:57:45,663 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:57:45,666 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:57:45,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:57:45,667 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:57:45,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-04-10 16:57:45,890 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG031cc3ab0 [2018-04-10 16:57:45,961 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:57:45,962 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:57:45,962 INFO L168 CDTParser]: Scanning cstrcat_unsafe_false-valid-deref.i [2018-04-10 16:57:45,963 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:57:45,963 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:57:45,963 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:57:45,963 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrcat_unsafe_false-valid-deref.i [2018-04-10 16:57:45,963 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcat_unsafe_false_valid_deref_i__ ('') in cstrcat_unsafe_false-valid-deref.i [2018-04-10 16:57:45,963 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:57:45,963 INFO L233 ultiparseSymbolTable]: [2018-04-10 16:57:45,974 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG031cc3ab0 [2018-04-10 16:57:45,977 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:57:45,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:57:45,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:57:45,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:57:45,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:57:45,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:57:45" (1/1) ... [2018-04-10 16:57:45,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1a5dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:45, skipping insertion in model container [2018-04-10 16:57:45,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:57:45" (1/1) ... [2018-04-10 16:57:45,997 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:57:46,007 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:57:46,120 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:57:46,138 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:57:46,141 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 8 non ball SCCs. Number of states in SCCs 8. [2018-04-10 16:57:46,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46 WrapperNode [2018-04-10 16:57:46,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:57:46,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:57:46,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:57:46,148 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:57:46,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... [2018-04-10 16:57:46,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:57:46,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:57:46,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:57:46,170 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:57:46,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-10 16:57:46,205 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:57:46,205 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:57:46,205 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-04-10 16:57:46,205 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:57:46,205 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcat [2018-04-10 16:57:46,205 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 16:57:46,206 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:57:46,390 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:57:46,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:57:46 BoogieIcfgContainer [2018-04-10 16:57:46,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:57:46,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:57:46,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:57:46,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:57:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:57:45" (1/3) ... [2018-04-10 16:57:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1838391b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:57:46, skipping insertion in model container [2018-04-10 16:57:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:57:46" (2/3) ... [2018-04-10 16:57:46,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1838391b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:57:46, skipping insertion in model container [2018-04-10 16:57:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:57:46" (3/3) ... [2018-04-10 16:57:46,397 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe_false-valid-deref.i [2018-04-10 16:57:46,403 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:57:46,408 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-10 16:57:46,432 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:57:46,433 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:57:46,433 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:57:46,433 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-10 16:57:46,433 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 16:57:46,433 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:57:46,433 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:57:46,433 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:57:46,433 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:57:46,434 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:57:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-04-10 16:57:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-10 16:57:46,455 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:57:46,456 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:57:46,456 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-10 16:57:46,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1113872939, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 16:57:46,470 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 16:57:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:57:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:57:46,531 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 16:57:46,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:57:46 BoogieIcfgContainer [2018-04-10 16:57:46,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:57:46,544 INFO L168 Benchmark]: Toolchain (without parser) took 566.92 ms. Allocated memory was 399.0 MB in the beginning and 597.7 MB in the end (delta: 198.7 MB). Free memory was 332.5 MB in the beginning and 551.1 MB in the end (delta: -218.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:57:46,545 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 399.0 MB. Free memory is still 347.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:57:46,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.68 ms. Allocated memory is still 399.0 MB. Free memory was 332.5 MB in the beginning and 322.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:46,546 INFO L168 Benchmark]: Boogie Preprocessor took 22.26 ms. Allocated memory is still 399.0 MB. Free memory was 322.5 MB in the beginning and 319.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:46,547 INFO L168 Benchmark]: RCFGBuilder took 221.03 ms. Allocated memory was 399.0 MB in the beginning and 597.7 MB in the end (delta: 198.7 MB). Free memory was 319.9 MB in the beginning and 564.7 MB in the end (delta: -244.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:46,547 INFO L168 Benchmark]: TraceAbstraction took 152.32 ms. Allocated memory is still 597.7 MB. Free memory was 564.7 MB in the beginning and 551.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 5.3 GB. [2018-04-10 16:57:46,550 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 399.0 MB. Free memory is still 347.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.68 ms. Allocated memory is still 399.0 MB. Free memory was 332.5 MB in the beginning and 322.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.26 ms. Allocated memory is still 399.0 MB. Free memory was 322.5 MB in the beginning and 319.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 221.03 ms. Allocated memory was 399.0 MB in the beginning and 597.7 MB in the end (delta: 198.7 MB). Free memory was 319.9 MB in the beginning and 564.7 MB in the end (delta: -244.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 152.32 ms. Allocated memory is still 597.7 MB. Free memory was 564.7 MB in the beginning and 551.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={0:8}, s2={7:6}] [L3] char *s = s1; VAL [s={0:8}, s1={0:8}, s1={0:8}, s2={7:6}, s2={7:6}] [L4] FCALL \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 7 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=31occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-57-46-557.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-57-46-557.csv Received shutdown request...