./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.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_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1 --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 ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:20:05,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:20:05,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-01 13:20:05,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:20:05,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:20:05,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:20:05,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:20:05,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:20:05,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:20:05,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:20:05,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:20:05,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:20:05,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:20:05,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:20:05,125 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:20:05,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:20:05,126 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:20:05,127 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:05,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:20:05,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:05,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:20:05,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:20:05,129 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_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1 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 -> ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 [2024-12-01 13:20:05,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:20:05,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:20:05,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:20:05,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:20:05,387 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:20:05,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2024-12-01 13:20:08,030 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/data/fd43a1731/c39b75d046cf4475af7e03906ff7395b/FLAG119c95c0b [2024-12-01 13:20:08,242 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:20:08,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2024-12-01 13:20:08,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/data/fd43a1731/c39b75d046cf4475af7e03906ff7395b/FLAG119c95c0b [2024-12-01 13:20:08,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/data/fd43a1731/c39b75d046cf4475af7e03906ff7395b [2024-12-01 13:20:08,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:20:08,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:20:08,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:08,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:20:08,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:20:08,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5dcfa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08, skipping insertion in model container [2024-12-01 13:20:08,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:20:08,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:08,763 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:20:08,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:08,785 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:20:08,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08 WrapperNode [2024-12-01 13:20:08,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:08,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:08,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:20:08,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:20:08,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,807 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-12-01 13:20:08,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:08,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:20:08,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:20:08,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:20:08,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,824 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-12-01 13:20:08,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,828 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:20:08,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:20:08,834 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:20:08,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:20:08,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (1/1) ... [2024-12-01 13:20:08,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:08,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:08,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:20:08,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:20:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 13:20:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:20:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:20:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 13:20:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-01 13:20:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-01 13:20:08,931 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:20:08,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:20:09,077 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-01 13:20:09,078 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:20:09,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:20:09,087 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-01 13:20:09,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:09 BoogieIcfgContainer [2024-12-01 13:20:09,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:20:09,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:20:09,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:20:09,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:20:09,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:20:08" (1/3) ... [2024-12-01 13:20:09,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4828429a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:09, skipping insertion in model container [2024-12-01 13:20:09,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:08" (2/3) ... [2024-12-01 13:20:09,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4828429a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:09, skipping insertion in model container [2024-12-01 13:20:09,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:09" (3/3) ... [2024-12-01 13:20:09,097 INFO L128 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2024-12-01 13:20:09,113 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:20:09,114 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ArraysOfVariableLength_-read.c that has 1 procedures, 29 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2024-12-01 13:20:09,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:20:09,166 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;@74f21b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:20:09,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-01 13:20:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.75) internal successors, (35), 28 states have internal predecessors, (35), 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) [2024-12-01 13:20:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-01 13:20:09,175 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:09,176 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-01 13:20:09,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-12-01 13:20:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash 890553482, now seen corresponding path program 1 times [2024-12-01 13:20:09,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:09,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002544523] [2024-12-01 13:20:09,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:09,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:20:09,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:09,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002544523] [2024-12-01 13:20:09,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002544523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:09,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:09,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:20:09,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616652816] [2024-12-01 13:20:09,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:09,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:20:09,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:09,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:20:09,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:09,338 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.75) internal successors, (35), 28 states have internal predecessors, (35), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-12-01 13:20:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:09,346 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-12-01 13:20:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:20:09,348 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-12-01 13:20:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:09,354 INFO L225 Difference]: With dead ends: 29 [2024-12-01 13:20:09,354 INFO L226 Difference]: Without dead ends: 27 [2024-12-01 13:20:09,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:20:09,358 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:09,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:20:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-01 13:20:09,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-01 13:20:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 26 states have internal predecessors, (30), 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) [2024-12-01 13:20:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-12-01 13:20:09,384 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2024-12-01 13:20:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:09,384 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-12-01 13:20:09,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-12-01 13:20:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-12-01 13:20:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-01 13:20:09,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:09,385 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-01 13:20:09,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:20:09,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-12-01 13:20:09,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 889601163, now seen corresponding path program 1 times [2024-12-01 13:20:09,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:09,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795257779] [2024-12-01 13:20:09,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:09,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:20:09,406 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:20:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:20:09,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 13:20:09,430 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 13:20:09,432 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (7 of 8 remaining) [2024-12-01 13:20:09,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-12-01 13:20:09,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2024-12-01 13:20:09,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2024-12-01 13:20:09,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-12-01 13:20:09,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-12-01 13:20:09,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2024-12-01 13:20:09,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-12-01 13:20:09,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:20:09,436 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-01 13:20:09,448 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:20:09,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:20:09 BoogieIcfgContainer [2024-12-01 13:20:09,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:20:09,451 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:20:09,451 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:20:09,451 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:20:09,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:09" (3/4) ... [2024-12-01 13:20:09,452 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-01 13:20:09,480 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-12-01 13:20:09,520 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 13:20:09,520 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 13:20:09,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:20:09,521 INFO L158 Benchmark]: Toolchain (without parser) took 895.82ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 67.8MB in the end (delta: 48.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,521 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:20:09,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.19ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 106.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.19ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:20:09,522 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 103.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,522 INFO L158 Benchmark]: RCFGBuilder took 253.56ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 91.6MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,522 INFO L158 Benchmark]: TraceAbstraction took 360.69ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 71.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,523 INFO L158 Benchmark]: Witness Printer took 69.23ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 67.8MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 13:20:09,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.19ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 106.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.19ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 103.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 253.56ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 91.6MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 360.69ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 71.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 69.23ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 67.8MB 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: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 VAL [b={2:0}, i=0] [L22] COND TRUE i < 100 VAL [b={2:0}, i=0] [L23] CALL foo(i, b, i) [L13] int a[n], i; [L14] i = 0 VAL [b={2:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [b={2:0}, i=0, n=0, size=0] [L15] a[i] VAL [b={2:0}, size=0] - 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: -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: 20]: 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, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2024-12-01 13:20:09,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6623ef62-1bf9-4dc9-93df-83b8cc830042/bin/uautomizer-verify-84ZbGMXZE1/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)