/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-memsafety/cstrncat_unsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:00:17,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:00:17,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:00:17,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:00:17,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:00:17,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:00:17,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:00:17,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:00:17,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:00:17,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:00:17,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:00:17,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:00:17,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:00:17,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:00:17,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:00:17,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:00:17,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:00:17,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:00:17,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:00:17,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:00:17,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:00:17,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:00:17,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:00:17,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:00:17,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:00:17,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:00:17,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:00:17,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:00:17,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:00:17,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:00:17,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:00:17,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:00:17,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:00:17,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:00:17,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:00:17,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:00:17,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:00:17,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:00:17,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:00:17,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:00:17,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:00:17,312 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:00:17,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:00:17,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:00:17,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:00:17,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:00:17,313 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:00:17,314 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:00:17,315 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:00:17,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:00:17,316 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:00:17,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:00:17,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:00:17,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:00:17,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:00:17,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:00:17,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:00:17,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:00:17,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:00:17,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:00:17,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:00:17,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:00:17,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:00:17,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:00:17,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:00:17,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:00:17,770 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:00:17,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrncat_unsafe.c [2021-01-07 05:00:17,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/09c60698c/24858c5e46114a719d92f20c508da3bd/FLAG70dc27cc2 [2021-01-07 05:00:18,483 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:00:18,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrncat_unsafe.c [2021-01-07 05:00:18,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/09c60698c/24858c5e46114a719d92f20c508da3bd/FLAG70dc27cc2 [2021-01-07 05:00:18,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/09c60698c/24858c5e46114a719d92f20c508da3bd [2021-01-07 05:00:18,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:00:18,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:00:18,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:00:18,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:00:18,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:00:18,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:00:18" (1/1) ... [2021-01-07 05:00:18,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc9c5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:18, skipping insertion in model container [2021-01-07 05:00:18,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:00:18" (1/1) ... [2021-01-07 05:00:18,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:00:18,908 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: IdentifierExpression[~s~0,] left hand side expression in assignment: address: IdentifierExpression[~s~0,] [2021-01-07 05:00:19,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:00:19,113 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: IdentifierExpression[~s~0,] left hand side expression in assignment: address: IdentifierExpression[~s~0,] [2021-01-07 05:00:19,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:00:19,145 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:00:19,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19 WrapperNode [2021-01-07 05:00:19,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:00:19,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:00:19,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:00:19,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:00:19,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:00:19,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:00:19,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:00:19,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:00:19,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... [2021-01-07 05:00:19,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:00:19,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:00:19,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:00:19,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:00:19,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:00:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:00:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:00:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:00:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 05:00:19,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:00:19,677 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-07 05:00:19,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:00:19 BoogieIcfgContainer [2021-01-07 05:00:19,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:00:19,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:00:19,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:00:19,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:00:19,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:00:18" (1/3) ... [2021-01-07 05:00:19,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c983744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:00:19, skipping insertion in model container [2021-01-07 05:00:19,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:00:19" (2/3) ... [2021-01-07 05:00:19,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c983744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:00:19, skipping insertion in model container [2021-01-07 05:00:19,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:00:19" (3/3) ... [2021-01-07 05:00:19,691 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrncat_unsafe.c [2021-01-07 05:00:19,700 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:00:19,706 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-01-07 05:00:19,734 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-01-07 05:00:19,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:00:19,792 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:00:19,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:00:19,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:00:19,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:00:19,793 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:00:19,793 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:00:19,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:00:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-01-07 05:00:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-07 05:00:19,850 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:00:19,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-07 05:00:19,852 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:00:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:00:19,869 INFO L82 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2021-01-07 05:00:19,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:00:19,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469760762] [2021-01-07 05:00:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:00:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:00:20,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:00:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:00:20,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:00:20,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:00:20,094 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:00:20,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:00:20,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:00:20 BoogieIcfgContainer [2021-01-07 05:00:20,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:00:20,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:00:20,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:00:20,125 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:00:20,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:00:19" (3/4) ... [2021-01-07 05:00:20,128 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 05:00:20,183 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/array-memsafety/cstrncat_unsafe.c-witness.graphml [2021-01-07 05:00:20,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:00:20,186 INFO L168 Benchmark]: Toolchain (without parser) took 1317.64 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 120.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,188 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:00:20,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.52 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 118.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 153.1 MB. Free memory was 118.8 MB in the beginning and 117.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,198 INFO L168 Benchmark]: Boogie Preprocessor took 24.92 ms. Allocated memory is still 153.1 MB. Free memory was 117.3 MB in the beginning and 116.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,199 INFO L168 Benchmark]: RCFGBuilder took 468.41 ms. Allocated memory is still 153.1 MB. Free memory was 116.2 MB in the beginning and 134.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,200 INFO L168 Benchmark]: TraceAbstraction took 438.81 ms. Allocated memory is still 153.1 MB. Free memory was 133.5 MB in the beginning and 122.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,201 INFO L168 Benchmark]: Witness Printer took 59.40 ms. Allocated memory is still 153.1 MB. Free memory was 122.5 MB in the beginning and 120.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:00:20,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory was 125.8 MB in the beginning and 125.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 274.52 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 118.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 153.1 MB. Free memory was 118.8 MB in the beginning and 117.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.92 ms. Allocated memory is still 153.1 MB. Free memory was 117.3 MB in the beginning and 116.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 468.41 ms. Allocated memory is still 153.1 MB. Free memory was 116.2 MB in the beginning and 134.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 438.81 ms. Allocated memory is still 153.1 MB. Free memory was 133.5 MB in the beginning and 122.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Witness Printer took 59.40 ms. Allocated memory is still 153.1 MB. Free memory was 122.5 MB in the beginning and 120.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L24] char *s1; [L25] char *s2; [L26] int n = __VERIFIER_nondet_int(); [L5] char *s = s1; [L7] \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...