./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/diff_usafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/diff_usafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/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 c4e0be718883e167d4be051b03c3a4364271b932 ................................................................................................................................................................................................................................................ 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 0.1.23-0cd3be1 [2018-11-28 12:40:36,893 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:40:36,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:40:36,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:40:36,903 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:40:36,903 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:40:36,904 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:40:36,905 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:40:36,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:40:36,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:40:36,907 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:40:36,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:40:36,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:40:36,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:40:36,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:40:36,910 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:40:36,911 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:40:36,912 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:40:36,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:40:36,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:40:36,915 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:40:36,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:40:36,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:40:36,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:40:36,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:40:36,919 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:40:36,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:40:36,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:40:36,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:40:36,921 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:40:36,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:40:36,922 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:40:36,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:40:36,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:40:36,923 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:40:36,923 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:40:36,924 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 12:40:36,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:40:36,934 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:40:36,934 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:40:36,934 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:40:36,935 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:40:36,935 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:40:36,935 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:40:36,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:40:36,935 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:40:36,935 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:40:36,936 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:40:36,937 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:40:36,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:40:36,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:40:36,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:40:36,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:40:36,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:40:36,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:40:36,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:40:36,938 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:40:36,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:40:36,938 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_703fdbf3-84f3-444e-8864-2d77c682e02f/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 -> c4e0be718883e167d4be051b03c3a4364271b932 [2018-11-28 12:40:36,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:40:36,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:40:36,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:40:36,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:40:36,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:40:36,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/diff_usafe_false-valid-deref.i [2018-11-28 12:40:37,008 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/data/6c161009b/bc7e754194bd49c2bac96697c0af9256/FLAG44227a47d [2018-11-28 12:40:37,391 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:40:37,391 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/sv-benchmarks/c/array-memsafety/diff_usafe_false-valid-deref.i [2018-11-28 12:40:37,396 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/data/6c161009b/bc7e754194bd49c2bac96697c0af9256/FLAG44227a47d [2018-11-28 12:40:37,407 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/data/6c161009b/bc7e754194bd49c2bac96697c0af9256 [2018-11-28 12:40:37,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:40:37,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:40:37,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:37,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:40:37,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:40:37,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26273247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37, skipping insertion in model container [2018-11-28 12:40:37,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:40:37,436 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:40:37,553 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:37,559 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:40:37,569 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:40:37,578 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:40:37,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37 WrapperNode [2018-11-28 12:40:37,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:40:37,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:40:37,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:40:37,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:40:37,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... [2018-11-28 12:40:37,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:40:37,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:40:37,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:40:37,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:40:37,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/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 [2018-11-28 12:40:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:40:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:40:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure diff [2018-11-28 12:40:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:40:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:40:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure diff [2018-11-28 12:40:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:40:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:40:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:40:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:40:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:40:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:40:37,811 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:40:37,812 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:40:37,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:37 BoogieIcfgContainer [2018-11-28 12:40:37,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:40:37,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:40:37,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:40:37,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:40:37,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:40:37" (1/3) ... [2018-11-28 12:40:37,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f8cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:40:37, skipping insertion in model container [2018-11-28 12:40:37,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:40:37" (2/3) ... [2018-11-28 12:40:37,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f8cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:40:37, skipping insertion in model container [2018-11-28 12:40:37,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:37" (3/3) ... [2018-11-28 12:40:37,818 INFO L112 eAbstractionObserver]: Analyzing ICFG diff_usafe_false-valid-deref.i [2018-11-28 12:40:37,824 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:40:37,828 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-11-28 12:40:37,838 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-11-28 12:40:37,854 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:40:37,855 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:40:37,855 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:40:37,855 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:40:37,855 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:40:37,855 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:40:37,855 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:40:37,855 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:40:37,855 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:40:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-28 12:40:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:40:37,869 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:37,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:37,870 INFO L423 AbstractCegarLoop]: === Iteration 1 === [diffErr2REQUIRES_VIOLATION, diffErr7REQUIRES_VIOLATION, diffErr4REQUIRES_VIOLATION, diffErr3REQUIRES_VIOLATION, diffErr0REQUIRES_VIOLATION, diffErr5REQUIRES_VIOLATION, diffErr1REQUIRES_VIOLATION, diffErr6REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-28 12:40:37,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,874 INFO L82 PathProgramCache]: Analyzing trace with hash -633667021, now seen corresponding path program 1 times [2018-11-28 12:40:37,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:40:37,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:40:37,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:37,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:40:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:40:37,974 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:40:37,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:40:37 BoogieIcfgContainer [2018-11-28 12:40:37,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:40:37,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:40:37,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:40:37,994 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:40:37,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:40:37" (3/4) ... [2018-11-28 12:40:37,996 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:40:38,023 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_703fdbf3-84f3-444e-8864-2d77c682e02f/bin-2019/uautomizer/witness.graphml [2018-11-28 12:40:38,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:40:38,024 INFO L168 Benchmark]: Toolchain (without parser) took 613.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -124.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:38,025 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:38,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.05 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:38,025 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:40:38,026 INFO L168 Benchmark]: RCFGBuilder took 212.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:38,026 INFO L168 Benchmark]: TraceAbstraction took 180.50 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:40:38,026 INFO L168 Benchmark]: Witness Printer took 29.92 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. [2018-11-28 12:40:38,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.05 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.74 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 212.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 180.50 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Witness Printer took 29.92 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: 13]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L27] int *A; [L28] int Alen = __VERIFIER_nondet_int(); [L29] int *B; [L30] int Blen = __VERIFIER_nondet_int(); [L31] int *D; VAL [Alen=2, Blen=3] [L32] CALL diff(A, Alen, B, Blen, D) VAL [\old(Alen)=2, \old(Blen)=3, A={11:7}, B={8:10}, D={5:9}] [L4] int k = 0; [L5] int i = 0; [L6] int l1 = Alen; [L7] int l2 = Blen; [L8] int found; VAL [\old(Alen)=2, \old(Blen)=3, A={11:7}, A={11:7}, Alen=2, B={8:10}, B={8:10}, Blen=3, D={5:9}, D={5:9}, i=0, k=0, l1=2, l2=3] [L9] COND TRUE i < l1 [L10] int j = 0; [L11] found = 0 VAL [\old(Alen)=2, \old(Blen)=3, A={11:7}, A={11:7}, Alen=2, B={8:10}, B={8:10}, Blen=3, D={5:9}, D={5:9}, found=0, i=0, j=0, k=0, l1=2, l2=3] [L12] COND TRUE j < l2 && !found VAL [\old(Alen)=2, \old(Blen)=3, A={11:7}, A={11:7}, Alen=2, B={8:10}, B={8:10}, Blen=3, D={5:9}, D={5:9}, found=0, i=0, j=0, k=0, l1=2, l2=3] [L13] A[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 9 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=34occurred 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, 11 NumberOfCodeBlocks, 11 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...