./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:54:20,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:20,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:20,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:20,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:20,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:20,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:20,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:20,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:20,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:20,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:20,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:20,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:20,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:20,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:20,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:20,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:20,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:20,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:20,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:20,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:20,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:20,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:20,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:20,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:20,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:20,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:20,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:20,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:20,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:20,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:20,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:20,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:20,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:20,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:20,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:20,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:20,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:20,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:20,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:20,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:54:20,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:20,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:20,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:20,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:20,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:20,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:20,378 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:20,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:20,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:20,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:20,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:20,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:20,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:20,381 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:54:20,381 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:54:20,382 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:54:20,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:54:20,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:54:20,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:20,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:20,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:20,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:20,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:54:20,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:54:20,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:20,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:54:20,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:54:20,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:54:20,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:20,386 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 [2021-10-28 09:54:20,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:20,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:20,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:20,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:20,793 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:20,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2021-10-28 09:54:20,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/data/b28b2896b/4188fde067224575b722b1984a959ee9/FLAGdf8c75e19 [2021-10-28 09:54:21,587 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:21,588 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2021-10-28 09:54:21,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/data/b28b2896b/4188fde067224575b722b1984a959ee9/FLAGdf8c75e19 [2021-10-28 09:54:21,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/data/b28b2896b/4188fde067224575b722b1984a959ee9 [2021-10-28 09:54:21,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:21,930 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:54:21,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:21,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:21,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:21,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:21" (1/1) ... [2021-10-28 09:54:21,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3747f580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:21, skipping insertion in model container [2021-10-28 09:54:21,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:21" (1/1) ... [2021-10-28 09:54:21,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:21,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:22,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:22,204 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:54:22,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:22,245 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:54:22,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22 WrapperNode [2021-10-28 09:54:22,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:22,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:54:22,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:54:22,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:54:22,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:54:22,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:54:22,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:54:22,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:54:22,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (1/1) ... [2021-10-28 09:54:22,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:54:22,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:22,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:22,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:54:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:54:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:54:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2021-10-28 09:54:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:54:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:54:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2021-10-28 09:54:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:54:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:54:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:54:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:54:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:54:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:54:22,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:54:22,642 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:54:22,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:22 BoogieIcfgContainer [2021-10-28 09:54:22,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:54:22,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:54:22,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:54:22,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:54:22,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:54:21" (1/3) ... [2021-10-28 09:54:22,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be5274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:54:22, skipping insertion in model container [2021-10-28 09:54:22,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:22" (2/3) ... [2021-10-28 09:54:22,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be5274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:54:22, skipping insertion in model container [2021-10-28 09:54:22,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:22" (3/3) ... [2021-10-28 09:54:22,657 INFO L111 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2021-10-28 09:54:22,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:54:22,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 09:54:22,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:54:22,734 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:54:22,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:54:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:54:22,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:54:22,765 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:22,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:22,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting sumOfThirdBytesErr0REQUIRES_VIOLATION === [sumOfThirdBytesErr0REQUIRES_VIOLATION, sumOfThirdBytesErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:54:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:22,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1028467452, now seen corresponding path program 1 times [2021-10-28 09:54:22,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:22,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540846568] [2021-10-28 09:54:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:22,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:22,921 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:22,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:22,979 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:54:22,980 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location sumOfThirdBytesErr0REQUIRES_VIOLATION [2021-10-28 09:54:22,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumOfThirdBytesErr1REQUIRES_VIOLATION [2021-10-28 09:54:22,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:54:22,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:54:22,990 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 09:54:22,996 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:54:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:54:23 BoogieIcfgContainer [2021-10-28 09:54:23,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:54:23,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:54:23,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:54:23,030 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:54:23,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:22" (3/4) ... [2021-10-28 09:54:23,033 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:54:23,105 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:54:23,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:54:23,112 INFO L168 Benchmark]: Toolchain (without parser) took 1177.63 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 49.2 MB in the beginning and 70.8 MB in the end (delta: -21.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:23,116 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 54.6 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:23,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.15 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 48.9 MB in the beginning and 96.3 MB in the end (delta: -47.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:23,118 INFO L168 Benchmark]: Boogie Preprocessor took 40.69 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 95.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:23,119 INFO L168 Benchmark]: RCFGBuilder took 354.18 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 85.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:23,120 INFO L168 Benchmark]: TraceAbstraction took 379.49 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 72.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:23,121 INFO L168 Benchmark]: Witness Printer took 77.24 ms. Allocated memory is still 119.5 MB. Free memory was 72.5 MB in the beginning and 70.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:23,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 54.6 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.15 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 48.9 MB in the beginning and 96.3 MB in the end (delta: -47.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.69 ms. Allocated memory is still 119.5 MB. Free memory was 96.3 MB in the beginning and 95.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 354.18 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 85.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 379.49 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 72.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 77.24 ms. Allocated memory is still 119.5 MB. Free memory was 72.5 MB in the beginning and 70.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 11]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] int* numbers; [L18] int array_size = __VERIFIER_nondet_int(); [L19] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={3:-2}] [L5] int i, sum; [L6] char* p; [L7] sum = 0 [L8] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={3:-2}, numbers={3:-2}, sum=0] [L8] COND TRUE i < array_size [L9] p = &(numbers[i]) [L10] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={3:-2}, numbers={3:-2}, p={3:0}, sum=0] [L11] \read(*p) - UnprovableResult [Line: 11]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 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, 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, 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! [2021-10-28 09:54:23,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02a2468-951d-4310-aa70-ae428727c756/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...