./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c -s /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer --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 f0256cff7505d5abe903a80b10a1172a40306545 ............................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-28 03:09:30,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:30,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:30,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:30,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:30,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:30,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:30,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:30,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:30,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:30,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:30,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:30,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:30,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:30,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:30,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:30,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:30,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:30,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:30,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:30,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:30,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:30,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:30,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:30,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:30,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:30,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:30,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:30,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:30,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:30,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:30,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:30,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:30,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:30,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:30,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:30,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:30,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:30,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:30,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:30,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:30,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:09:30,746 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:30,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:30,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:30,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:30,750 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:30,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:30,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:30,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:09:30,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:30,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:30,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:30,753 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:09:30,753 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:09:30,753 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:09:30,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:30,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:09:30,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:30,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:30,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:30,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:30,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:30,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:30,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:30,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:30,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:30,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:30,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:09:30,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:30,758 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-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0256cff7505d5abe903a80b10a1172a40306545 [2020-11-28 03:09:31,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:31,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:31,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:31,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:31,162 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:31,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2020-11-28 03:09:31,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/data/4c3412a14/2637670306994d73b445da1b13979d57/FLAG6a45e29c6 [2020-11-28 03:09:31,936 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:31,936 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2020-11-28 03:09:31,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/data/4c3412a14/2637670306994d73b445da1b13979d57/FLAG6a45e29c6 [2020-11-28 03:09:32,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/data/4c3412a14/2637670306994d73b445da1b13979d57 [2020-11-28 03:09:32,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:32,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:09:32,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:32,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:32,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:32,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115e9c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32, skipping insertion in model container [2020-11-28 03:09:32,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:32,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:32,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:32,597 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:32,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:32,640 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32 WrapperNode [2020-11-28 03:09:32,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:32,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:32,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:32,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:32,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... [2020-11-28 03:09:32,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:32,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:32,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:32,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:32,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:09:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2020-11-28 03:09:32,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:09:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:09:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2020-11-28 03:09:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:09:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:09:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:09:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:09:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:09:33,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:33,325 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-28 03:09:33,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:33 BoogieIcfgContainer [2020-11-28 03:09:33,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:33,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:33,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:33,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:33,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:32" (1/3) ... [2020-11-28 03:09:33,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fbf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:33, skipping insertion in model container [2020-11-28 03:09:33,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:32" (2/3) ... [2020-11-28 03:09:33,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fbf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:33, skipping insertion in model container [2020-11-28 03:09:33,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:33" (3/3) ... [2020-11-28 03:09:33,340 INFO L111 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2020-11-28 03:09:33,354 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:33,359 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:09:33,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:09:33,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:33,400 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:09:33,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:33,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:33,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:33,401 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:33,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:33,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 03:09:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:09:33,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:33,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:33,440 INFO L429 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:09:33,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:33,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1028467452, now seen corresponding path program 1 times [2020-11-28 03:09:33,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:33,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477854526] [2020-11-28 03:09:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:33,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:33,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:33,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:33,731 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:33,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:09:33,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:33 BoogieIcfgContainer [2020-11-28 03:09:33,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:33,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:33,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:33,764 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:33,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:33" (3/4) ... [2020-11-28 03:09:33,767 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:09:33,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_986ec6ef-ee02-431f-bebc-d89939c0e923/bin/uautomizer/witness.graphml [2020-11-28 03:09:33,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:33,868 INFO L168 Benchmark]: Toolchain (without parser) took 1571.45 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 50.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:33,869 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 73.4 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:33,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.46 ms. Allocated memory is still 98.6 MB. Free memory was 68.2 MB in the beginning and 76.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:33,874 INFO L168 Benchmark]: Boogie Preprocessor took 61.99 ms. Allocated memory is still 98.6 MB. Free memory was 76.9 MB in the beginning and 75.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:33,875 INFO L168 Benchmark]: RCFGBuilder took 618.73 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 64.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:33,876 INFO L168 Benchmark]: TraceAbstraction took 431.47 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 52.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:33,877 INFO L168 Benchmark]: Witness Printer took 97.77 ms. Allocated memory is still 98.6 MB. Free memory was 52.2 MB in the beginning and 50.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:33,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 73.4 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.46 ms. Allocated memory is still 98.6 MB. Free memory was 68.2 MB in the beginning and 76.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.99 ms. Allocated memory is still 98.6 MB. Free memory was 76.9 MB in the beginning and 75.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 618.73 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 64.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 431.47 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 52.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 97.77 ms. Allocated memory is still 98.6 MB. Free memory was 52.2 MB in the beginning and 50.6 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: - 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={4:-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={4:-2}, numbers={4:-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={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L11] \read(*p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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! Received shutdown request...