./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a06ac35b6270d716926f4cab09091bb160bdd736 ....................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-27 04:46:54,367 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:46:54,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:46:54,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:46:54,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:46:54,378 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:46:54,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:46:54,381 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:46:54,383 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:46:54,383 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:46:54,384 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:46:54,384 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:46:54,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:46:54,386 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:46:54,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:46:54,387 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:46:54,388 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:46:54,389 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:46:54,391 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:46:54,392 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:46:54,393 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:46:54,394 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:46:54,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:46:54,396 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:46:54,396 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:46:54,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:46:54,397 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:46:54,399 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:46:54,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:46:54,400 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:46:54,400 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:46:54,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:46:54,401 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:46:54,401 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:46:54,402 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:46:54,403 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:46:54,403 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-10-27 04:46:54,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:46:54,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:46:54,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 04:46:54,415 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 04:46:54,415 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 04:46:54,416 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 04:46:54,416 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:46:54,416 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:46:54,416 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:46:54,417 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:46:54,419 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:46:54,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:46:54,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:46:54,421 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:46:54,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:46:54,421 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 04:46:54,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:46:54,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 04:46:54,421 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan 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 -> Taipan 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 -> a06ac35b6270d716926f4cab09091bb160bdd736 [2018-10-27 04:46:54,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:46:54,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:46:54,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:46:54,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:46:54,471 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:46:54,471 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/scopes2_false-valid-deref.c [2018-10-27 04:46:54,518 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/data/90d90b134/249df34dc782464da6a4557fd34830cc/FLAG2f8e04807 [2018-10-27 04:46:54,879 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:46:54,880 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/sv-benchmarks/c/memsafety-ext3/scopes2_false-valid-deref.c [2018-10-27 04:46:54,885 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/data/90d90b134/249df34dc782464da6a4557fd34830cc/FLAG2f8e04807 [2018-10-27 04:46:54,894 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/data/90d90b134/249df34dc782464da6a4557fd34830cc [2018-10-27 04:46:54,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:46:54,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 04:46:54,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:54,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:46:54,902 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:46:54,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:54" (1/1) ... [2018-10-27 04:46:54,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54241dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:54, skipping insertion in model container [2018-10-27 04:46:54,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:54" (1/1) ... [2018-10-27 04:46:54,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:46:54,926 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:46:55,042 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:55,049 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:46:55,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:55,073 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:46:55,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55 WrapperNode [2018-10-27 04:46:55,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:55,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:55,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 04:46:55,075 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 04:46:55,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:55,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:46:55,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:46:55,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:46:55,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... [2018-10-27 04:46:55,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:46:55,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:46:55,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:46:55,126 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:46:55,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/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 [2018-10-27 04:46:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:46:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:46:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:46:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:46:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:46:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:46:55,542 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:46:55,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:55 BoogieIcfgContainer [2018-10-27 04:46:55,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:46:55,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:46:55,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:46:55,546 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:46:55,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:46:54" (1/3) ... [2018-10-27 04:46:55,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698ffe8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:55, skipping insertion in model container [2018-10-27 04:46:55,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:55" (2/3) ... [2018-10-27 04:46:55,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698ffe8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:55, skipping insertion in model container [2018-10-27 04:46:55,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:55" (3/3) ... [2018-10-27 04:46:55,549 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes2_false-valid-deref.c [2018-10-27 04:46:55,557 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:46:55,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-27 04:46:55,604 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-27 04:46:55,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:46:55,651 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:46:55,651 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:46:55,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:46:55,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:46:55,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:46:55,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:46:55,652 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:46:55,664 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-10-27 04:46:55,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 04:46:55,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:55,672 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:55,674 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:55,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:55,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1515412132, now seen corresponding path program 1 times [2018-10-27 04:46:55,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:55,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:55,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:46:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:46:55,852 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 04:46:55,863 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,864 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,864 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,865 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,865 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,871 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,871 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,872 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,872 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,872 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,872 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,873 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,873 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,873 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,873 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,874 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:46:55 BoogieIcfgContainer [2018-10-27 04:46:55,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:46:55,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:46:55,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:46:55,884 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:46:55,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:55" (3/4) ... [2018-10-27 04:46:55,887 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 04:46:55,888 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,888 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,888 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,889 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,889 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,889 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,889 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,890 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,890 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,890 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,890 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,891 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,891 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,891 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 04:46:55,891 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,892 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 04:46:55,927 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dcafe90c-3565-4870-80c1-99c5a97b263e/bin-2019/utaipan/witness.graphml [2018-10-27 04:46:55,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:46:55,928 INFO L168 Benchmark]: Toolchain (without parser) took 1030.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,929 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:55,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,930 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:55,931 INFO L168 Benchmark]: RCFGBuilder took 416.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,931 INFO L168 Benchmark]: TraceAbstraction took 340.56 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,932 INFO L168 Benchmark]: Witness Printer took 43.03 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:55,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 416.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 340.56 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.03 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] CALL "%d" [L19] RET "%d" VAL ["%d"={107:0}, \old("%d")=103, \old("%d")=106] [L5] int *myPointerA = ((void*) 0); [L6] int *myPointerB = ((void*) 0); [L8] COND TRUE __VERIFIER_nondet_int() [L10] CALL int myNumberA = 7; [L10] RET int myNumberA = 7; [L10] RET int myNumberA = 7; [L11] myPointerA = &myNumberA [L10] CALL int myNumberA = 7; [L10] RET int myNumberA = 7; VAL ["%d"={107:0}] [L15] CALL int myNumberB = 3; [L15] RET int myNumberB = 3; [L15] RET int myNumberB = 3; [L16] myPointerB = &myNumberB [L18] CALL \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 5 error locations. UNSAFE Result, 0.2s 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=21occurred 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, 9 NumberOfCodeBlocks, 9 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...