./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/loops/sum_array-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/loops/sum_array-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:41,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:41,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 11:53:41,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:41,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:41,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:41,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:41,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:41,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:53:41,392 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:53:41,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:41,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:41,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:41,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:41,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:41,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:41,397 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:41,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:41,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:41,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:41,400 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:53:41,401 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:53:41,401 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:53:41,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:41,402 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:53:41,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:41,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:41,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:41,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:41,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:41,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:53:41,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:41,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:41,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:41,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:41,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:41,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:41,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:41,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:41,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:41,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:41,410 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d [2023-11-26 11:53:41,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:41,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:41,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:41,750 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:41,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:41,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loops/sum_array-1.c [2023-11-26 11:53:45,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:45,218 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:45,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/sv-benchmarks/c/loops/sum_array-1.c [2023-11-26 11:53:45,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/data/cc3914321/fc441c9c55184b27856da4cb86bde1bf/FLAG850e2e8bf [2023-11-26 11:53:45,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/data/cc3914321/fc441c9c55184b27856da4cb86bde1bf [2023-11-26 11:53:45,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:45,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:45,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:45,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:45,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:45,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62098283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45, skipping insertion in model container [2023-11-26 11:53:45,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:45,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:45,502 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:45,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:45,544 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:45,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45 WrapperNode [2023-11-26 11:53:45,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:45,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:45,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:45,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:45,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,592 INFO L138 Inliner]: procedures = 15, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-11-26 11:53:45,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:45,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:53:45,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:53:45,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:53:45,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,642 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-26 11:53:45,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:53:45,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:53:45,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:53:45,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:53:45,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (1/1) ... [2023-11-26 11:53:45,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:45,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:45,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:53:45,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:53:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:53:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:53:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:53:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:53:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:53:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:53:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:53:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:53:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:53:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:53:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:53:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:53:45,847 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:53:45,850 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:53:46,170 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:53:46,258 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:53:46,258 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 11:53:46,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:46 BoogieIcfgContainer [2023-11-26 11:53:46,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:53:46,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:53:46,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:53:46,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:53:46,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:45" (1/3) ... [2023-11-26 11:53:46,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f943623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:46, skipping insertion in model container [2023-11-26 11:53:46,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:45" (2/3) ... [2023-11-26 11:53:46,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f943623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:46, skipping insertion in model container [2023-11-26 11:53:46,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:46" (3/3) ... [2023-11-26 11:53:46,272 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2023-11-26 11:53:46,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:53:46,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-26 11:53:46,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:53:46,357 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@4c5a3dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:53:46,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-26 11:53:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 39 states have internal predecessors, (48), 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) [2023-11-26 11:53:46,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:53:46,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:46,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:53:46,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-11-26 11:53:46,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash 138706, now seen corresponding path program 1 times [2023-11-26 11:53:46,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245920005] [2023-11-26 11:53:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:46,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:46,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:46,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245920005] [2023-11-26 11:53:46,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245920005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:46,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:46,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:53:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326656245] [2023-11-26 11:53:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:46,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:46,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:46,832 INFO L87 Difference]: Start difference. First operand has 40 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 39 states have internal predecessors, (48), 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) [2023-11-26 11:53:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:46,903 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2023-11-26 11:53:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:46,905 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 [2023-11-26 11:53:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:46,914 INFO L225 Difference]: With dead ends: 37 [2023-11-26 11:53:46,914 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 11:53:46,916 INFO L412 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 [2023-11-26 11:53:46,920 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:46,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:53:46,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 11:53:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-26 11:53:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 35 states have internal predecessors, (39), 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) [2023-11-26 11:53:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-11-26 11:53:46,955 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 3 [2023-11-26 11:53:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:46,956 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-11-26 11:53:46,956 INFO L496 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) [2023-11-26 11:53:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-11-26 11:53:46,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:53:46,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:46,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:53:46,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:53:46,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-11-26 11:53:46,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash 138707, now seen corresponding path program 1 times [2023-11-26 11:53:46,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:46,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028856621] [2023-11-26 11:53:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:46,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:53:47,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:53:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:53:47,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:53:47,095 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:53:47,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2023-11-26 11:53:47,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2023-11-26 11:53:47,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2023-11-26 11:53:47,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2023-11-26 11:53:47,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2023-11-26 11:53:47,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2023-11-26 11:53:47,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2023-11-26 11:53:47,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2023-11-26 11:53:47,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2023-11-26 11:53:47,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2023-11-26 11:53:47,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2023-11-26 11:53:47,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2023-11-26 11:53:47,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2023-11-26 11:53:47,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2023-11-26 11:53:47,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2023-11-26 11:53:47,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2023-11-26 11:53:47,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2023-11-26 11:53:47,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2023-11-26 11:53:47,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:53:47,108 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:53:47,114 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:53:47,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:53:47 BoogieIcfgContainer [2023-11-26 11:53:47,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:53:47,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:53:47,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:53:47,134 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:53:47,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:46" (3/4) ... [2023-11-26 11:53:47,135 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 11:53:47,185 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c32d45e-34ad-4699-8d64-191126eab3d2/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:53:47,185 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:53:47,188 INFO L158 Benchmark]: Toolchain (without parser) took 1931.83ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 68.0MB in the beginning and 92.1MB in the end (delta: -24.1MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,188 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 81.0MB in the beginning and 81.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:53:47,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.98ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 57.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.63ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 55.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,195 INFO L158 Benchmark]: Boogie Preprocessor took 76.85ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 55.2MB in the beginning and 146.1MB in the end (delta: -90.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,195 INFO L158 Benchmark]: RCFGBuilder took 588.78ms. Allocated memory is still 176.2MB. Free memory was 146.0MB in the beginning and 130.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,196 INFO L158 Benchmark]: TraceAbstraction took 869.76ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 93.2MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,196 INFO L158 Benchmark]: Witness Printer took 52.39ms. Allocated memory is still 176.2MB. Free memory was 93.2MB in the beginning and 92.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:47,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 81.0MB in the beginning and 81.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.98ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 57.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.63ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 55.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.85ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 55.2MB in the beginning and 146.1MB in the end (delta: -90.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 588.78ms. Allocated memory is still 176.2MB. Free memory was 146.0MB in the beginning and 130.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 869.76ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 93.2MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 52.39ms. Allocated memory is still 176.2MB. Free memory was 93.2MB in the beginning and 92.1MB in the end (delta: 1.1MB). 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: [L16] unsigned int M = __VERIFIER_nondet_uint(); [L17] int A[M], B[M], C[M]; [L18] unsigned int i; [L20] i=0 VAL [A={4:0}, B={5:0}, C={6:0}, M=1073741824, i=0] [L20] COND TRUE i