./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB --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 5006077e10b123684af5816f85c68609f620d4e536300995b347b7a57b1efc6a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:49:42,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:49:42,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:49:42,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:49:42,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:49:42,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:49:42,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:49:42,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:49:42,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:49:42,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:49:42,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:49:42,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:49:42,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:49:42,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:49:42,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:49:42,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:49:42,180 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:49:42,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:49:42,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:49:42,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:49:42,182 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:49:42,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:49:42,182 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:49:42,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:42,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:42,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:42,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:42,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:49:42,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:42,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:42,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:49:42,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:49:42,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:49:42,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:49:42,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:49:42,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 5006077e10b123684af5816f85c68609f620d4e536300995b347b7a57b1efc6a [2024-11-28 04:49:42,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:49:42,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:49:42,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:49:42,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:49:42,520 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:49:42,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2024-11-28 04:49:45,493 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/data/5a61431e3/c79f212839c24147adefce8f7a3658a7/FLAGb1a765de2 [2024-11-28 04:49:45,729 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:49:45,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/sv-benchmarks/c/memsafety-ext3/scopes1.c [2024-11-28 04:49:45,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/data/5a61431e3/c79f212839c24147adefce8f7a3658a7/FLAGb1a765de2 [2024-11-28 04:49:45,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/data/5a61431e3/c79f212839c24147adefce8f7a3658a7 [2024-11-28 04:49:45,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:49:45,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:49:45,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:45,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:49:45,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:49:45,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:45,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7da525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45, skipping insertion in model container [2024-11-28 04:49:45,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:45,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:49:45,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:45,964 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:49:45,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:45,994 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:49:45,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45 WrapperNode [2024-11-28 04:49:45,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:45,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:45,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:49:45,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:49:46,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,033 INFO L138 Inliner]: procedures = 9, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-11-28 04:49:46,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:46,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:49:46,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:49:46,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:49:46,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,066 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2024-11-28 04:49:46,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,072 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:49:46,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:49:46,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:49:46,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:49:46,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (1/1) ... [2024-11-28 04:49:46,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:46,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:46,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:49:46,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:49:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:49:46,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:49:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:49:46,227 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:49:46,228 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:49:46,384 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 04:49:46,385 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:49:46,397 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:49:46,397 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:49:46,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:46 BoogieIcfgContainer [2024-11-28 04:49:46,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:49:46,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:49:46,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:49:46,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:49:46,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:45" (1/3) ... [2024-11-28 04:49:46,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6ab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:46, skipping insertion in model container [2024-11-28 04:49:46,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:45" (2/3) ... [2024-11-28 04:49:46,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6ab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:46, skipping insertion in model container [2024-11-28 04:49:46,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:46" (3/3) ... [2024-11-28 04:49:46,408 INFO L128 eAbstractionObserver]: Analyzing ICFG scopes1.c [2024-11-28 04:49:46,424 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:49:46,425 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG scopes1.c that has 1 procedures, 13 locations, 1 initial locations, 0 loop locations, and 5 error locations. [2024-11-28 04:49:46,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:49:46,489 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=PETRI_NET, 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;@2fdd83c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:49:46,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 04:49:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 12 states have internal predecessors, (12), 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) [2024-11-28 04:49:46,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:49:46,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:46,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:49:46,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-11-28 04:49:46,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:46,508 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-28 04:49:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745283773] [2024-11-28 04:49:46,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:46,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:49:46,642 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:49:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:49:46,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:49:46,680 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:49:46,681 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2024-11-28 04:49:46,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2024-11-28 04:49:46,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2024-11-28 04:49:46,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 5 remaining) [2024-11-28 04:49:46,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-11-28 04:49:46,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:49:46,692 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 04:49:46,708 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:49:46,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:46 BoogieIcfgContainer [2024-11-28 04:49:46,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:49:46,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:49:46,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:49:46,716 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:49:46,718 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:46" (3/4) ... [2024-11-28 04:49:46,719 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 04:49:46,762 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 1. [2024-11-28 04:49:46,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:49:46,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:49:46,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:49:46,806 INFO L158 Benchmark]: Toolchain (without parser) took 1051.44ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 54.1MB in the end (delta: 39.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 04:49:46,806 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 73.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:46,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.77ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:46,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.65ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:46,809 INFO L158 Benchmark]: Boogie Preprocessor took 49.30ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:46,809 INFO L158 Benchmark]: RCFGBuilder took 313.80ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 70.7MB in the end (delta: 9.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:49:46,809 INFO L158 Benchmark]: TraceAbstraction took 312.35ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 57.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:46,810 INFO L158 Benchmark]: Witness Printer took 88.78ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 54.1MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:46,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 73.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.77ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.65ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.30ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.80ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 70.7MB in the end (delta: 9.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 312.35ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 57.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 88.78ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 54.1MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. 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: [L4] int *myPointerA = ((void*) 0); [L5] int *myPointerB = ((void*) 0); [L8] int myNumberA = 7; [L8] int myNumberA = 7; [L9] myPointerA = &myNumberA [L8] int myNumberA = 7; [L13] int myNumberB = 3; [L13] int myNumberB = 3; [L14] myPointerB = &myNumberB VAL [myPointerA={2:0}, myPointerB={5:0}] [L16] \read(*myPointerA) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:49:46,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18374b43-65b2-471c-be93-5596f0fcb3c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)