./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/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 c090728bcdd499bfd732daec58c15cc1b5f2f2aa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-aa41828 [2018-11-23 15:49:40,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:49:40,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:49:40,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:49:40,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:49:40,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:49:40,344 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:49:40,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:49:40,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:49:40,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:49:40,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:49:40,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:49:40,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:49:40,350 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:49:40,351 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:49:40,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:49:40,352 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:49:40,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:49:40,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:49:40,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:49:40,357 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:49:40,358 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:49:40,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:49:40,360 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:49:40,360 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:49:40,361 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:49:40,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:49:40,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:49:40,362 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:49:40,363 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:49:40,363 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:49:40,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:49:40,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:49:40,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:49:40,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:49:40,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:49:40,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-23 15:49:40,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:49:40,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:49:40,372 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:49:40,372 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:49:40,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:49:40,372 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:49:40,372 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:49:40,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:49:40,373 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:49:40,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:49:40,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:49:40,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:49:40,375 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:49:40,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/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 -> c090728bcdd499bfd732daec58c15cc1b5f2f2aa [2018-11-23 15:49:40,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:49:40,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:49:40,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:49:40,412 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:49:40,412 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:49:40,413 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-11-23 15:49:40,449 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/data/57b58633b/3da83b1dbfb34c89969e06c301b884b8/FLAGc5af250a6 [2018-11-23 15:49:40,745 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:49:40,745 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-11-23 15:49:40,750 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/data/57b58633b/3da83b1dbfb34c89969e06c301b884b8/FLAGc5af250a6 [2018-11-23 15:49:40,760 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/data/57b58633b/3da83b1dbfb34c89969e06c301b884b8 [2018-11-23 15:49:40,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:49:40,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 15:49:40,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:49:40,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:49:40,766 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:49:40,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc0002c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40, skipping insertion in model container [2018-11-23 15:49:40,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:49:40,786 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:49:40,882 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:49:40,889 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:49:40,898 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:49:40,906 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:49:40,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40 WrapperNode [2018-11-23 15:49:40,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:49:40,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:49:40,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:49:40,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:49:40,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... [2018-11-23 15:49:40,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:49:40,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:49:40,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:49:40,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:49:40,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/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 [2018-11-23 15:49:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:49:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:49:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-11-23 15:49:41,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:49:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-23 15:49:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-11-23 15:49:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 15:49:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:49:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:49:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:49:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 15:49:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:49:41,136 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:49:41,137 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 15:49:41,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:41 BoogieIcfgContainer [2018-11-23 15:49:41,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:49:41,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:49:41,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:49:41,140 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:49:41,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:40" (1/3) ... [2018-11-23 15:49:41,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1b98e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:41, skipping insertion in model container [2018-11-23 15:49:41,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:40" (2/3) ... [2018-11-23 15:49:41,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1b98e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:41, skipping insertion in model container [2018-11-23 15:49:41,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:41" (3/3) ... [2018-11-23 15:49:41,143 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe_false-valid-deref.i [2018-11-23 15:49:41,150 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:49:41,160 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 15:49:41,170 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 15:49:41,192 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:49:41,192 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:49:41,192 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 15:49:41,192 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:49:41,193 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:49:41,193 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:49:41,193 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:49:41,193 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:49:41,193 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:49:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 15:49:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 15:49:41,214 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:49:41,214 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:49:41,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-23 15:49:41,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:49:41,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1028467452, now seen corresponding path program 1 times [2018-11-23 15:49:41,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:49:41,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:49:41,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:41,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:49:41,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:49:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:49:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:49:41,330 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=5, |#NULL.offset|=2, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] RET #31#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret4 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~numbers~0.base, ~numbers~0.offset;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~array_size~0 := #t~nondet2;havoc #t~nondet2; VAL [main_~array_size~0=1, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2)] [?] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset;~array_size := #in~array_size;havoc ~i~0;havoc ~sum~0;havoc ~p~0.base, ~p~0.offset;~sum~0 := 0;~i~0 := 0; VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] assume !!(~i~0 < ~array_size);~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0;~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~p~0.base=4, sumOfThirdBytes_~p~0.offset=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] assume !(1 == #valid[~p~0.base]); VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~p~0.base=4, sumOfThirdBytes_~p~0.offset=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=5, #NULL.offset=2, old(#NULL.base)=5, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L15] havoc ~numbers~0.base, ~numbers~0.offset; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0] [L2-L13] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0.base, ~p~0.offset; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] assume !!(~i~0 < ~array_size); [L8] ~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0; [L9] ~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [L10] call #t~mem1 := read~int(~p~0.base, ~p~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=5, #NULL.offset=2, old(#NULL.base)=5, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L15] havoc ~numbers~0.base, ~numbers~0.offset; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0] [L2-L13] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0.base, ~p~0.offset; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] assume !!(~i~0 < ~array_size); [L8] ~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0; [L9] ~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [L10] call #t~mem1 := read~int(~p~0.base, ~p~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=5, #NULL!offset=2, old(#NULL!base)=5, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=5, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L15] havoc ~numbers~0; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0, ~array_size~0); VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0] [L2-L13] ~#numbers := #in~numbers; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] COND FALSE !(!(~i~0 < ~array_size)) [L8] ~p~0 := { base: ~#numbers!base, offset: ~#numbers!offset + 4 * ~i~0 }; [L9] ~p~0 := { base: ~p~0!base, offset: 2 + ~p~0!offset }; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L10] FCALL call #t~mem1 := read~int(~p~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=5, #NULL!offset=2, old(#NULL!base)=5, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=5, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L15] havoc ~numbers~0; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0, ~array_size~0); VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0] [L2-L13] ~#numbers := #in~numbers; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] COND FALSE !(!(~i~0 < ~array_size)) [L8] ~p~0 := { base: ~#numbers!base, offset: ~#numbers!offset + 4 * ~i~0 }; [L9] ~p~0 := { base: ~p~0!base, offset: 2 + ~p~0!offset }; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L10] FCALL call #t~mem1 := read~int(~p~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={4:-2}] [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, sum=0] [L7] COND TRUE i < array_size [L8] p = &(numbers[i]) [L9] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L10] \read(*p) ----- [2018-11-23 15:49:41,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:49:41 BoogieIcfgContainer [2018-11-23 15:49:41,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:49:41,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:49:41,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:49:41,353 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:49:41,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:41" (3/4) ... [2018-11-23 15:49:41,355 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=5, |#NULL.offset|=2, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=5, |old(#NULL.offset)|=2] [?] RET #31#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret4 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~numbers~0.base, ~numbers~0.offset;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~array_size~0 := #t~nondet2;havoc #t~nondet2; VAL [main_~array_size~0=1, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2)] [?] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset;~array_size := #in~array_size;havoc ~i~0;havoc ~sum~0;havoc ~p~0.base, ~p~0.offset;~sum~0 := 0;~i~0 := 0; VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] assume !!(~i~0 < ~array_size);~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0;~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~p~0.base=4, sumOfThirdBytes_~p~0.offset=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] assume !(1 == #valid[~p~0.base]); VAL [sumOfThirdBytes_~array_size=1, sumOfThirdBytes_~i~0=0, sumOfThirdBytes_~p~0.base=4, sumOfThirdBytes_~p~0.offset=0, sumOfThirdBytes_~sum~0=0, |#NULL.base|=0, |#NULL.offset|=0, |sumOfThirdBytes_#in~array_size|=1, |sumOfThirdBytes_#in~numbers.base|=4, |sumOfThirdBytes_#in~numbers.offset|=(- 2), |sumOfThirdBytes_~#numbers.base|=4, |sumOfThirdBytes_~#numbers.offset|=(- 2)] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=5, #NULL.offset=2, old(#NULL.base)=5, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L15] havoc ~numbers~0.base, ~numbers~0.offset; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0] [L2-L13] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0.base, ~p~0.offset; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] assume !!(~i~0 < ~array_size); [L8] ~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0; [L9] ~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [L10] call #t~mem1 := read~int(~p~0.base, ~p~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=5, #NULL.offset=2, old(#NULL.base)=5, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=5, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L15] havoc ~numbers~0.base, ~numbers~0.offset; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL.base=0, #NULL.offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0.base, ~numbers~0.offset, ~array_size~0); VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0] [L2-L13] ~#numbers.base, ~#numbers.offset := #in~numbers.base, #in~numbers.offset; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0.base, ~p~0.offset; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] assume !!(~i~0 < ~array_size); [L8] ~p~0.base, ~p~0.offset := ~#numbers.base, ~#numbers.offset + 4 * ~i~0; [L9] ~p~0.base, ~p~0.offset := ~p~0.base, 2 + ~p~0.offset; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [L10] call #t~mem1 := read~int(~p~0.base, ~p~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers.base=4, #in~numbers.offset=-2, #NULL.base=0, #NULL.offset=0, ~#numbers.base=4, ~#numbers.offset=-2, ~array_size=1, ~i~0=0, ~p~0.base=4, ~p~0.offset=0, ~sum~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=5, #NULL!offset=2, old(#NULL!base)=5, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=5, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L15] havoc ~numbers~0; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0, ~array_size~0); VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0] [L2-L13] ~#numbers := #in~numbers; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] COND FALSE !(!(~i~0 < ~array_size)) [L8] ~p~0 := { base: ~#numbers!base, offset: ~#numbers!offset + 4 * ~i~0 }; [L9] ~p~0 := { base: ~p~0!base, offset: 2 + ~p~0!offset }; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L10] FCALL call #t~mem1 := read~int(~p~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=5, #NULL!offset=2, old(#NULL!base)=5, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=5, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret4 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L15] havoc ~numbers~0; [L16] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L16] ~array_size~0 := #t~nondet2; [L16] havoc #t~nondet2; VAL [#NULL!base=0, #NULL!offset=0, ~array_size~0=1] [L17] CALL call #t~ret3 := sumOfThirdBytes(~numbers~0, ~array_size~0); VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0] [L2-L13] ~#numbers := #in~numbers; [L2-L13] ~array_size := #in~array_size; [L4] havoc ~i~0; [L4] havoc ~sum~0; [L5] havoc ~p~0; [L6] ~sum~0 := 0; [L7] ~i~0 := 0; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~sum~0=0] [L7-L11] COND FALSE !(!(~i~0 < ~array_size)) [L8] ~p~0 := { base: ~#numbers!base, offset: ~#numbers!offset + 4 * ~i~0 }; [L9] ~p~0 := { base: ~p~0!base, offset: 2 + ~p~0!offset }; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L10] FCALL call #t~mem1 := read~int(~p~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~array_size=1, #in~numbers!base=4, #in~numbers!offset=-2, #NULL!base=0, #NULL!offset=0, ~#numbers!base=4, ~#numbers!offset=-2, ~array_size=1, ~i~0=0, ~p~0!base=4, ~p~0!offset=0, ~sum~0=0] [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={4:-2}] [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, sum=0] [L7] COND TRUE i < array_size [L8] p = &(numbers[i]) [L9] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L10] \read(*p) ----- [2018-11-23 15:49:41,390 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9221dba9-5271-4d1d-acfa-469280d44226/bin-2019/uautomizer/witness.graphml [2018-11-23 15:49:41,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:49:41,391 INFO L168 Benchmark]: Toolchain (without parser) took 628.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -142.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,392 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:49:41,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.63 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,393 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,394 INFO L168 Benchmark]: RCFGBuilder took 206.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,394 INFO L168 Benchmark]: TraceAbstraction took 215.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,395 INFO L168 Benchmark]: Witness Printer took 37.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:49:41,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.63 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Witness Printer took 37.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={4:-2}] [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, sum=0] [L7] COND TRUE i < array_size [L8] p = &(numbers[i]) [L9] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L10] \read(*p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...