./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be --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-e943c26 [2021-10-21 19:58:19,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:58:19,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:58:19,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:58:19,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:58:19,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:58:19,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:58:19,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:58:19,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:58:19,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:58:19,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:58:19,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:58:19,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:58:19,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:58:19,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:58:19,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:58:19,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:58:19,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:58:19,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:58:19,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:58:19,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:58:19,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:58:19,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:58:19,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:58:19,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:58:19,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:58:19,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:58:19,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:58:19,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:58:19,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:58:19,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:58:19,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:58:19,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:58:19,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:58:19,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:58:19,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:58:19,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:58:19,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:58:19,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:58:19,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:58:19,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:58:19,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:58:19,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:58:19,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:58:19,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:58:19,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:58:19,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:58:19,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:58:19,457 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:58:19,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:58:19,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:58:19,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:58:19,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:58:19,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:58:19,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:58:19,459 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:58:19,459 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:58:19,460 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:58:19,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:58:19,460 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:58:19,460 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:58:19,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:58:19,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:58:19,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:58:19,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:58:19,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:58:19,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:58:19,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:58:19,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:58:19,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:58:19,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:58:19,463 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_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5006077e10b123684af5816f85c68609f620d4e536300995b347b7a57b1efc6a [2021-10-21 19:58:19,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:58:19,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:58:19,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:58:19,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:58:19,762 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:58:19,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-21 19:58:19,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/data/4af1d36c4/a02e875654ee4788b5f99aea0d305a30/FLAGa064524bd [2021-10-21 19:58:20,259 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:58:20,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/sv-benchmarks/c/memsafety-ext3/scopes1.c [2021-10-21 19:58:20,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/data/4af1d36c4/a02e875654ee4788b5f99aea0d305a30/FLAGa064524bd [2021-10-21 19:58:20,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/data/4af1d36c4/a02e875654ee4788b5f99aea0d305a30 [2021-10-21 19:58:20,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:58:20,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:58:20,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:58:20,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:58:20,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:58:20,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370a4b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20, skipping insertion in model container [2021-10-21 19:58:20,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:58:20,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:58:20,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:58:20,871 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:58:20,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:58:20,906 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:58:20,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20 WrapperNode [2021-10-21 19:58:20,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:58:20,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:58:20,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:58:20,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:58:20,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:58:20,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:58:20,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:58:20,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:58:20,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (1/1) ... [2021-10-21 19:58:20,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:58:20,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:58:20,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:58:21,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:58:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:58:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:58:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:58:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-21 19:58:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:58:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:58:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:58:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:58:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:58:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:58:21,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:58:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:58:21,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:58:21,220 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-21 19:58:21,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:58:21 BoogieIcfgContainer [2021-10-21 19:58:21,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:58:21,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:58:21,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:58:21,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:58:21,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:58:20" (1/3) ... [2021-10-21 19:58:21,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59411f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:58:21, skipping insertion in model container [2021-10-21 19:58:21,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:58:20" (2/3) ... [2021-10-21 19:58:21,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59411f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:58:21, skipping insertion in model container [2021-10-21 19:58:21,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:58:21" (3/3) ... [2021-10-21 19:58:21,229 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes1.c [2021-10-21 19:58:21,233 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:58:21,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-21 19:58:21,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:58:21,282 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 [2021-10-21 19:58:21,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-21 19:58:21,297 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) [2021-10-21 19:58:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:58:21,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:58:21,304 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:58:21,304 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK] === [2021-10-21 19:58:21,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:58:21,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2123086958, now seen corresponding path program 1 times [2021-10-21 19:58:21,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:58:21,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936329539] [2021-10-21 19:58:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:58:21,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:58:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:58:21,426 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:58:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:58:21,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:58:21,476 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:58:21,477 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0REQUIRES_VIOLATION [2021-10-21 19:58:21,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-21 19:58:21,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-21 19:58:21,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-21 19:58:21,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:58:21,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:58:21,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:58:21,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:58:21 BoogieIcfgContainer [2021-10-21 19:58:21,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:58:21,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:58:21,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:58:21,505 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:58:21,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:58:21" (3/4) ... [2021-10-21 19:58:21,508 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:58:21,539 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:58:21,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:58:21,541 INFO L168 Benchmark]: Toolchain (without parser) took 851.73 ms. Allocated memory is still 109.1 MB. Free memory was 77.8 MB in the beginning and 58.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:58:21,541 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 63.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:58:21,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.52 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 84.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:58:21,543 INFO L168 Benchmark]: Boogie Preprocessor took 40.75 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:58:21,543 INFO L168 Benchmark]: RCFGBuilder took 272.30 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 74.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:58:21,544 INFO L168 Benchmark]: TraceAbstraction took 280.83 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 60.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:58:21,545 INFO L168 Benchmark]: Witness Printer took 33.95 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 58.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:58:21,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 63.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 214.52 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 84.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.75 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 272.30 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 74.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 280.83 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 60.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 33.95 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 58.6 MB in the end (delta: 1.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 213.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.4ms SsaConstructionTime, 44.5ms SatisfiabilityAnalysisTime, 0.0ms 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! [2021-10-21 19:58:21,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d1974f-bc3c-4323-b74c-d59905be78ff/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...