./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c -s /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/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 0.1.24-cad4683 [2019-10-22 09:00:40,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:40,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:40,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:40,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:40,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:40,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:40,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:40,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:40,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:40,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:40,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:40,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:40,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:40,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:40,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:40,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:40,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:40,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:40,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:40,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:40,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:40,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:40,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:40,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:40,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:40,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:40,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:40,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:40,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:40,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:40,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:40,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:40,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:40,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:40,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:40,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:40,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:40,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:40,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:40,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:40,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:00:40,389 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:40,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:40,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:40,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:40,402 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:40,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:40,403 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:40,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:40,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:40,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:40,404 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:40,405 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:40,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:40,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:40,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:40,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:40,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:40,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:40,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:40,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:40,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:40,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/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 [2019-10-22 09:00:40,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:40,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:40,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:40,467 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:40,467 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:40,468 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2019-10-22 09:00:40,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/data/11c5efd1d/4dc50aae7ee84b70b9005200d53f4082/FLAG8a22c13f2 [2019-10-22 09:00:40,960 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:40,960 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2019-10-22 09:00:40,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/data/11c5efd1d/4dc50aae7ee84b70b9005200d53f4082/FLAG8a22c13f2 [2019-10-22 09:00:41,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/data/11c5efd1d/4dc50aae7ee84b70b9005200d53f4082 [2019-10-22 09:00:41,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:41,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:41,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:41,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:41,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:41,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bde67ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41, skipping insertion in model container [2019-10-22 09:00:41,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,319 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:41,336 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:41,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:41,520 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:41,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:41,635 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:41,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41 WrapperNode [2019-10-22 09:00:41,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:41,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:41,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:41,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:41,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... [2019-10-22 09:00:41,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:41,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:41,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:41,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:41,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/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 [2019-10-22 09:00:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2019-10-22 09:00:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2019-10-22 09:00:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:42,061 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:42,062 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-22 09:00:42,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:42 BoogieIcfgContainer [2019-10-22 09:00:42,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:42,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:42,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:42,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:42,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:41" (1/3) ... [2019-10-22 09:00:42,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2739f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:42, skipping insertion in model container [2019-10-22 09:00:42,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:41" (2/3) ... [2019-10-22 09:00:42,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2739f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:42, skipping insertion in model container [2019-10-22 09:00:42,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:42" (3/3) ... [2019-10-22 09:00:42,073 INFO L109 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2019-10-22 09:00:42,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:42,095 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:00:42,111 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:00:42,147 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:42,148 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:42,148 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:42,148 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:42,148 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:42,148 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:42,148 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:42,149 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 09:00:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:42,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:42,196 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:42,198 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1REQUIRES_VIOLATION, sumOfThirdBytesErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:42,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:42,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1028467452, now seen corresponding path program 1 times [2019-10-22 09:00:42,214 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:42,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785119338] [2019-10-22 09:00:42,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:42,218 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:42,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:42,390 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:42,391 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:42,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:42 BoogieIcfgContainer [2019-10-22 09:00:42,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:42,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:42,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:42,422 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:42,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:42" (3/4) ... [2019-10-22 09:00:42,426 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:42,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_be4a67a1-e0e7-4562-b0a0-8fb40c21e2ab/bin/uautomizer/witness.graphml [2019-10-22 09:00:42,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:42,483 INFO L168 Benchmark]: Toolchain (without parser) took 1183.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -134.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:42,484 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:42,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:42,485 INFO L168 Benchmark]: Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:42,485 INFO L168 Benchmark]: RCFGBuilder took 391.75 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:42,487 INFO L168 Benchmark]: TraceAbstraction took 356.55 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:42,488 INFO L168 Benchmark]: Witness Printer took 59.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:42,491 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.75 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 356.55 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 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. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...