./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes1.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_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/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_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/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_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/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 5006077e10b123684af5816f85c68609f620d4e536300995b347b7a57b1efc6a .......................................................................................................................................................................................................................................................... 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 09:51:14,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:51:14,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:51:14,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:51:14,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:51:14,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:51:14,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:51:14,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:51:14,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:51:14,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:51:14,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:51:14,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:51:14,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:51:14,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:51:14,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:51:14,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:51:14,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:51:14,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:51:14,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:51:14,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:51:14,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:51:14,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:51:14,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:51:14,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:51:14,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:51:14,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:51:14,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:51:14,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:51:14,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:51:14,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:51:14,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:51:14,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:51:14,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:51:14,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:51:14,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:51:14,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:51:14,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:51:14,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:51:14,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:51:14,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:51:14,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:51:14,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:51:14,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:51:14,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:51:14,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:51:14,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:51:14,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:51:14,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:51:14,330 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:51:14,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:51:14,330 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:51:14,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:51:14,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:51:14,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:51:14,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:51:14,332 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:51:14,333 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:51:14,333 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:51:14,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:51:14,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:51:14,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:51:14,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:51:14,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:51:14,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:51:14,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:51:14,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:51:14,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:51:14,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:51:14,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:51:14,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:51:14,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:51:14,338 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_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5006077e10b123684af5816f85c68609f620d4e536300995b347b7a57b1efc6a [2021-10-28 09:51:14,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:51:14,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:51:14,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:51:14,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:51:14,689 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:51:14,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-28 09:51:14,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/data/9b6dd0736/d56042a488674436963af998e360f3c9/FLAG0da61831e [2021-10-28 09:51:15,301 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:51:15,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-28 09:51:15,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/data/9b6dd0736/d56042a488674436963af998e360f3c9/FLAG0da61831e [2021-10-28 09:51:15,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/data/9b6dd0736/d56042a488674436963af998e360f3c9 [2021-10-28 09:51:15,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:51:15,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:51:15,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:15,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:51:15,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:51:15,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f94be16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15, skipping insertion in model container [2021-10-28 09:51:15,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:51:15,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:51:15,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:15,917 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:51:15,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:15,940 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:51:15,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15 WrapperNode [2021-10-28 09:51:15,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:15,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:51:15,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:51:15,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:51:15,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:51:15,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:51:15,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:51:15,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:51:15,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (1/1) ... [2021-10-28 09:51:15,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:51:15,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:16,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:16,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:51:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:51:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:51:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:51:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-28 09:51:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:51:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:51:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:51:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:51:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:51:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:51:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:51:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:51:16,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:51:16,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 09:51:16,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:16 BoogieIcfgContainer [2021-10-28 09:51:16,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:51:16,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:51:16,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:51:16,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:51:16,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:51:15" (1/3) ... [2021-10-28 09:51:16,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca1ab7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:51:16, skipping insertion in model container [2021-10-28 09:51:16,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:15" (2/3) ... [2021-10-28 09:51:16,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca1ab7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:51:16, skipping insertion in model container [2021-10-28 09:51:16,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:16" (3/3) ... [2021-10-28 09:51:16,359 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes1.c [2021-10-28 09:51:16,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:51:16,365 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-28 09:51:16,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:51:16,466 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 09:51:16,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 09:51:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 8 states have (on average 1.625) internal successors, (13), 13 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:51:16,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:51:16,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:16,494 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-28 09:51:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:16,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2123086958, now seen corresponding path program 1 times [2021-10-28 09:51:16,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:16,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745573974] [2021-10-28 09:51:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:16,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:16,642 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:16,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:16,688 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:51:16,689 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0REQUIRES_VIOLATION [2021-10-28 09:51:16,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 09:51:16,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 09:51:16,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 09:51:16,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:51:16,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:51:16,696 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 09:51:16,700 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:51:16,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:51:16 BoogieIcfgContainer [2021-10-28 09:51:16,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:51:16,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:51:16,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:51:16,717 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:51:16,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:16" (3/4) ... [2021-10-28 09:51:16,719 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:51:16,752 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:51:16,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:51:16,754 INFO L168 Benchmark]: Toolchain (without parser) took 1066.22 ms. Allocated memory is still 90.2 MB. Free memory was 55.9 MB in the beginning and 40.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,754 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:16,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.66 ms. Allocated memory is still 90.2 MB. Free memory was 55.7 MB in the beginning and 66.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,756 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,757 INFO L168 Benchmark]: RCFGBuilder took 381.33 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 55.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,757 INFO L168 Benchmark]: TraceAbstraction took 363.35 ms. Allocated memory is still 90.2 MB. Free memory was 55.5 MB in the beginning and 41.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,758 INFO L168 Benchmark]: Witness Printer took 35.56 ms. Allocated memory is still 90.2 MB. Free memory was 41.9 MB in the beginning and 40.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:16,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.66 ms. Allocated memory is still 90.2 MB. Free memory was 55.7 MB in the beginning and 66.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.36 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 381.33 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 55.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 363.35 ms. Allocated memory is still 90.2 MB. Free memory was 55.5 MB in the beginning and 41.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 35.56 ms. Allocated memory is still 90.2 MB. Free memory was 41.9 MB in the beginning and 40.2 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: 16]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L4] int *myPointerA = ((void*) 0); [L5] int *myPointerB = ((void*) 0); [L8] int myNumberA = 7; [L9] myPointerA = &myNumberA [L8] int myNumberA = 7; [L13] int myNumberB = 3; [L14] myPointerB = &myNumberB VAL [myNumberB={5:0}, myPointerA={8:0}, myPointerB={5:0}] [L16] \read(*myPointerA) - UnprovableResult [Line: 16]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3]: 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 3 procedures, 18 locations, 5 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=18occurred 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, 7 NumberOfCodeBlocks, 7 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 09:51:16,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f3547a9-78e3-42e7-b7e7-31b34a7400dd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...