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/cstrcat_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 08:20:23,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 08:20:23,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 08:20:23,131 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 08:20:23,131 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 08:20:23,132 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 08:20:23,133 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 08:20:23,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 08:20:23,138 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 08:20:23,139 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 08:20:23,140 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 08:20:23,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 08:20:23,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 08:20:23,143 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 08:20:23,144 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 08:20:23,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 08:20:23,148 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 08:20:23,150 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 08:20:23,155 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 08:20:23,156 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 08:20:23,158 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 08:20:23,159 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 08:20:23,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 08:20:23,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 08:20:23,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 08:20:23,164 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 08:20:23,164 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 08:20:23,164 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 08:20:23,165 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 08:20:23,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 08:20:23,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 08:20:23,166 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 08:20:23,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 08:20:23,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 08:20:23,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 08:20:23,176 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 08:20:23,177 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 08:20:23,177 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 08:20:23,177 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 08:20:23,178 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 08:20:23,178 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 08:20:23,178 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 08:20:23,178 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 08:20:23,178 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 08:20:23,178 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 08:20:23,179 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 08:20:23,179 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 08:20:23,179 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 08:20:23,179 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 08:20:23,179 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 08:20:23,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 08:20:23,180 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 08:20:23,180 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 08:20:23,180 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 08:20:23,180 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 08:20:23,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 08:20:23,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 08:20:23,181 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 08:20:23,181 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 08:20:23,181 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 08:20:23,181 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 08:20:23,182 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 08:20:23,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 08:20:23,182 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 08:20:23,183 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 08:20:23,183 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 08:20:23,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 08:20:23,237 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 08:20:23,240 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 08:20:23,242 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 08:20:23,242 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 08:20:23,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-01-31 08:20:23,355 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 08:20:23,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 08:20:23,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 08:20:23,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 08:20:23,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 08:20:23,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cca8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23, skipping insertion in model container [2018-01-31 08:20:23,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,398 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:20:23,416 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 08:20:23,584 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:20:23,604 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 08:20:23,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23 WrapperNode [2018-01-31 08:20:23,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 08:20:23,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 08:20:23,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 08:20:23,615 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 08:20:23,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (1/1) ... [2018-01-31 08:20:23,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 08:20:23,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 08:20:23,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 08:20:23,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 08:20:23,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (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 08:20:23,733 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 08:20:23,733 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 08:20:23,733 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-01-31 08:20:23,733 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcat [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 08:20:23,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 08:20:24,117 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 08:20:24,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:20:24 BoogieIcfgContainer [2018-01-31 08:20:24,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 08:20:24,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 08:20:24,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 08:20:24,123 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 08:20:24,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:20:23" (1/3) ... [2018-01-31 08:20:24,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685ff3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:20:24, skipping insertion in model container [2018-01-31 08:20:24,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:20:23" (2/3) ... [2018-01-31 08:20:24,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685ff3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:20:24, skipping insertion in model container [2018-01-31 08:20:24,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:20:24" (3/3) ... [2018-01-31 08:20:24,127 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe_false-valid-deref.i [2018-01-31 08:20:24,136 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 08:20:24,141 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-31 08:20:24,190 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 08:20:24,190 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 08:20:24,190 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 08:20:24,190 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 08:20:24,190 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 08:20:24,191 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 08:20:24,191 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 08:20:24,191 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 08:20:24,192 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 08:20:24,211 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-01-31 08:20:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-31 08:20:24,217 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 08:20:24,218 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 08:20:24,218 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 08:20:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash -280161279, now seen corresponding path program 1 times [2018-01-31 08:20:24,226 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 08:20:24,226 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 08:20:24,281 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:20:24,281 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 08:20:24,281 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 08:20:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:20:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 08:20:24,377 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 08:20:24,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:20:24 BoogieIcfgContainer [2018-01-31 08:20:24,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 08:20:24,418 INFO L168 Benchmark]: Toolchain (without parser) took 1061.90 ms. Allocated memory is still 306.2 MB. Free memory was 267.0 MB in the beginning and 226.1 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:20:24,419 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 306.2 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:20:24,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.47 ms. Allocated memory is still 306.2 MB. Free memory was 267.0 MB in the beginning and 257.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:20:24,421 INFO L168 Benchmark]: Boogie Preprocessor took 41.91 ms. Allocated memory is still 306.2 MB. Free memory is still 257.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 08:20:24,422 INFO L168 Benchmark]: RCFGBuilder took 461.97 ms. Allocated memory is still 306.2 MB. Free memory was 257.1 MB in the beginning and 240.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:20:24,422 INFO L168 Benchmark]: TraceAbstraction took 297.87 ms. Allocated memory is still 306.2 MB. Free memory was 240.1 MB in the beginning and 226.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-31 08:20:24,427 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 306.2 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 247.47 ms. Allocated memory is still 306.2 MB. Free memory was 267.0 MB in the beginning and 257.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.91 ms. Allocated memory is still 306.2 MB. Free memory is still 257.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 461.97 ms. Allocated memory is still 306.2 MB. Free memory was 257.1 MB in the beginning and 240.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 297.87 ms. Allocated memory is still 306.2 MB. Free memory was 240.1 MB in the beginning and 226.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 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: [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={5:8}, s2={6:4}] [L3] char *s = s1; VAL [s={5:8}, s1={5:8}, s1={5:8}, s2={6:4}, s2={6:4}] [L4] FCALL \read(*s) VAL [s={5:8}, s1={5:8}, s1={5:8}, s2={6:4}, s2={6:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 50 locations, 7 error locations. UNSAFE Result, 0.2s 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=50occurred 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, 14 NumberOfCodeBlocks, 14 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 /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_08-20-24-440.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcat_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_08-20-24-440.csv Received shutdown request...