./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/loops/insertion_sort-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/loops/insertion_sort-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --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 e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:22:47,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:22:47,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 12:22:47,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:22:47,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:22:47,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:22:47,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:22:47,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:22:47,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:22:47,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:22:47,236 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:22:47,236 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:22:47,237 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:22:47,237 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:22:47,238 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:22:47,238 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:22:47,239 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:22:47,239 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:22:47,242 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:22:47,246 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:22:47,247 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:22:47,247 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:22:47,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:22:47,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:22:47,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:22:47,249 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:22:47,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:22:47,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:22:47,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:22:47,250 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:22:47,252 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:22:47,253 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:22:47,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:22:47,254 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:22:47,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:22:47,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:22:47,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:22:47,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:22:47,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:22:47,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:22:47,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:22:47,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:22:47,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:22:47,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:22:47,257 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:22:47,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:22:47,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:22:47,259 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:22:47,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:22:47,260 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d [2024-11-02 12:22:47,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:22:47,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:22:47,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:22:47,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:22:47,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:22:47,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/loops/insertion_sort-2.c Unable to find full path for "g++" [2024-11-02 12:22:49,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:22:49,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:22:49,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/sv-benchmarks/c/loops/insertion_sort-2.c [2024-11-02 12:22:49,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/data/d24bf7546/35e549d9d6fd4183b42b97a60699c983/FLAGc365965a3 [2024-11-02 12:22:50,303 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/data/d24bf7546/35e549d9d6fd4183b42b97a60699c983 [2024-11-02 12:22:50,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:22:50,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:22:50,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:22:50,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:22:50,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:22:50,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181867aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50, skipping insertion in model container [2024-11-02 12:22:50,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:22:50,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:22:50,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:22:50,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:22:50,629 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:22:50,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50 WrapperNode [2024-11-02 12:22:50,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:22:50,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:22:50,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:22:50,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:22:50,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,667 INFO L138 Inliner]: procedures = 15, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-11-02 12:22:50,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:22:50,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:22:50,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:22:50,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:22:50,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:22:50,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:22:50,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:22:50,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:22:50,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:22:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:22:50,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:22:50,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:22:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:22:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:22:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:22:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:22:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:22:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:22:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:22:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:22:50,860 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:22:50,862 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:22:51,264 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-02 12:22:51,265 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:22:51,361 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:22:51,362 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-02 12:22:51,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:22:51 BoogieIcfgContainer [2024-11-02 12:22:51,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:22:51,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:22:51,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:22:51,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:22:51,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:22:50" (1/3) ... [2024-11-02 12:22:51,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:22:51, skipping insertion in model container [2024-11-02 12:22:51,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50" (2/3) ... [2024-11-02 12:22:51,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:22:51, skipping insertion in model container [2024-11-02 12:22:51,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:22:51" (3/3) ... [2024-11-02 12:22:51,374 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2024-11-02 12:22:51,394 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:22:51,394 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-02 12:22:51,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:22:51,464 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15b7b515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:22:51,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-02 12:22:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 37 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:22:51,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:22:51,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:51,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:22:51,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-02 12:22:51,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:51,483 INFO L85 PathProgramCache]: Analyzing trace with hash 143511, now seen corresponding path program 1 times [2024-11-02 12:22:51,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:51,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550717833] [2024-11-02 12:22:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:51,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:22:51,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:22:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550717833] [2024-11-02 12:22:51,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550717833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:22:51,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:22:51,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:22:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964017758] [2024-11-02 12:22:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:22:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:22:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:22:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:22:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:22:51,834 INFO L87 Difference]: Start difference. First operand has 38 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 37 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:22:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:22:51,942 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-02 12:22:51,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:22:51,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-02 12:22:51,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:22:51,954 INFO L225 Difference]: With dead ends: 30 [2024-11-02 12:22:51,954 INFO L226 Difference]: Without dead ends: 29 [2024-11-02 12:22:51,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:22:51,964 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:22:51,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 11 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:22:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-02 12:22:52,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-02 12:22:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.736842105263158) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:22:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-02 12:22:52,008 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 3 [2024-11-02 12:22:52,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:22:52,009 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-02 12:22:52,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:22:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-02 12:22:52,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:22:52,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:52,012 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:22:52,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:22:52,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-02 12:22:52,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash 143512, now seen corresponding path program 1 times [2024-11-02 12:22:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:52,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529953826] [2024-11-02 12:22:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:52,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:22:52,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:22:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:22:52,111 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:22:52,112 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:22:52,115 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-11-02 12:22:52,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-11-02 12:22:52,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-11-02 12:22:52,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-11-02 12:22:52,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-11-02 12:22:52,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-11-02 12:22:52,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-11-02 12:22:52,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-11-02 12:22:52,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2024-11-02 12:22:52,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2024-11-02 12:22:52,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-11-02 12:22:52,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-11-02 12:22:52,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-11-02 12:22:52,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-11-02 12:22:52,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-11-02 12:22:52,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-11-02 12:22:52,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2024-11-02 12:22:52,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2024-11-02 12:22:52,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:22:52,130 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 12:22:52,149 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:22:52,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:22:52 BoogieIcfgContainer [2024-11-02 12:22:52,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:22:52,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:22:52,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:22:52,159 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:22:52,160 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:22:51" (3/4) ... [2024-11-02 12:22:52,161 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-02 12:22:52,197 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47ebae7d-286d-431e-aa49-c805d1900666/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:22:52,198 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:22:52,198 INFO L158 Benchmark]: Toolchain (without parser) took 1891.80ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 110.5MB in the beginning and 137.5MB in the end (delta: -27.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,199 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:22:52,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.74ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 97.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.68ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,200 INFO L158 Benchmark]: Boogie Preprocessor took 25.91ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,201 INFO L158 Benchmark]: RCFGBuilder took 668.09ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 75.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,201 INFO L158 Benchmark]: TraceAbstraction took 787.70ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 75.1MB in the beginning and 138.7MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:22:52,202 INFO L158 Benchmark]: Witness Printer took 38.68ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 137.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:22:52,204 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.74ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 97.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.68ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.91ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.09ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 75.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 787.70ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 75.1MB in the beginning and 138.7MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.68ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 137.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L14] unsigned int SIZE=__VERIFIER_nondet_uint(); [L15] int i, j, k, key; [L16] int v[SIZE]; [L17] j=0 VAL [SIZE=-1073741824, j=0, v={4:0}] [L17] COND TRUE j