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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 20:16:29,901 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:16:29,902 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:16:29,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:16:29,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:16:29,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:16:29,913 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:16:29,914 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:16:29,916 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:16:29,916 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:16:29,917 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:16:29,917 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:16:29,918 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:16:29,919 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:16:29,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:16:29,921 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:16:29,922 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:16:29,923 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:16:29,924 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:16:29,925 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:16:29,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 20:16:29,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 20:16:29,927 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 20:16:29,928 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 20:16:29,928 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 20:16:29,929 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 20:16:29,929 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 20:16:29,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 20:16:29,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 20:16:29,931 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 20:16:29,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 20:16:29,932 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 20:16:29,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:16:29,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:16:29,955 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:16:29,955 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:16:29,955 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:16:29,956 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:16:29,956 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:16:29,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:16:29,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:16:29,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:16:29,958 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:16:29,958 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:16:29,958 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 20:16:29,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:16:29,997 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:16:29,999 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:16:30,000 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:16:30,001 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:16:30,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-04-11 20:16:30,291 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe59391685 [2018-04-11 20:16:30,382 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:16:30,382 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:16:30,382 INFO L168 CDTParser]: Scanning cstrcat_unsafe_false-valid-deref.i [2018-04-11 20:16:30,383 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:16:30,383 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:16:30,383 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:16:30,383 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrcat_unsafe_false-valid-deref.i [2018-04-11 20:16:30,383 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrcat_unsafe_false_valid_deref_i__ ('') in cstrcat_unsafe_false-valid-deref.i [2018-04-11 20:16:30,383 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:16:30,383 INFO L233 ultiparseSymbolTable]: [2018-04-11 20:16:30,394 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe59391685 [2018-04-11 20:16:30,398 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:16:30,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:16:30,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:16:30,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:16:30,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:16:30,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49dccd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30, skipping insertion in model container [2018-04-11 20:16:30,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,423 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:16:30,433 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:16:30,531 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:16:30,552 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:16:30,557 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 8 non ball SCCs. Number of states in SCCs 8. [2018-04-11 20:16:30,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30 WrapperNode [2018-04-11 20:16:30,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:16:30,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:16:30,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:16:30,565 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:16:30,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (1/1) ... [2018-04-11 20:16:30,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:16:30,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:16:30,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:16:30,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:16:30,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (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 [2018-04-11 20:16:30,637 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:16:30,637 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:16:30,638 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-04-11 20:16:30,638 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:16:30,638 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcat [2018-04-11 20:16:30,638 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:16:30,638 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:16:30,638 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:16:30,638 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:16:30,639 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:16:30,639 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:16:30,639 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:16:30,836 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:16:30,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:16:30 BoogieIcfgContainer [2018-04-11 20:16:30,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:16:30,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:16:30,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:16:30,839 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:16:30,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:16:30" (1/3) ... [2018-04-11 20:16:30,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd1f6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:16:30, skipping insertion in model container [2018-04-11 20:16:30,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:16:30" (2/3) ... [2018-04-11 20:16:30,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd1f6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:16:30, skipping insertion in model container [2018-04-11 20:16:30,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:16:30" (3/3) ... [2018-04-11 20:16:30,841 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe_false-valid-deref.i [2018-04-11 20:16:30,847 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:16:30,853 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-11 20:16:30,877 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:16:30,878 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:16:30,878 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:16:30,878 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:16:30,878 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:16:30,879 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:16:30,879 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:16:30,879 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:16:30,879 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:16:30,880 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:16:30,892 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-04-11 20:16:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 20:16:30,901 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:16:30,901 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:16:30,902 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-11 20:16:30,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1113872939, now seen corresponding path program 1 times [2018-04-11 20:16:30,907 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:16:30,907 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:16:30,941 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:16:30,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:16:30,942 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:16:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 20:16:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 20:16:30,989 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 20:16:31,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:16:31 BoogieIcfgContainer [2018-04-11 20:16:31,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:16:31,004 INFO L168 Benchmark]: Toolchain (without parser) took 605.58 ms. Allocated memory was 372.8 MB in the beginning and 553.6 MB in the end (delta: 180.9 MB). Free memory was 309.7 MB in the beginning and 504.6 MB in the end (delta: -194.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:16:31,005 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 372.8 MB. Free memory is still 332.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:16:31,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.61 ms. Allocated memory is still 372.8 MB. Free memory was 309.7 MB in the beginning and 300.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. [2018-04-11 20:16:31,007 INFO L168 Benchmark]: Boogie Preprocessor took 23.20 ms. Allocated memory is still 372.8 MB. Free memory was 300.4 MB in the beginning and 299.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 20:16:31,007 INFO L168 Benchmark]: RCFGBuilder took 247.99 ms. Allocated memory was 372.8 MB in the beginning and 553.6 MB in the end (delta: 180.9 MB). Free memory was 299.0 MB in the beginning and 517.9 MB in the end (delta: -218.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 5.3 GB. [2018-04-11 20:16:31,008 INFO L168 Benchmark]: TraceAbstraction took 166.53 ms. Allocated memory is still 553.6 MB. Free memory was 516.0 MB in the beginning and 504.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 5.3 GB. [2018-04-11 20:16:31,011 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 372.8 MB. Free memory is still 332.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 164.61 ms. Allocated memory is still 372.8 MB. Free memory was 309.7 MB in the beginning and 300.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.20 ms. Allocated memory is still 372.8 MB. Free memory was 300.4 MB in the beginning and 299.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 247.99 ms. Allocated memory was 372.8 MB in the beginning and 553.6 MB in the end (delta: 180.9 MB). Free memory was 299.0 MB in the beginning and 517.9 MB in the end (delta: -218.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 166.53 ms. Allocated memory is still 553.6 MB. Free memory was 516.0 MB in the beginning and 504.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 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={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-16-31-019.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-16-31-019.csv Received shutdown request...