./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/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_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 07:58:31,925 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 07:58:31,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 07:58:31,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 07:58:31,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 07:58:32,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 07:58:32,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 07:58:32,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 07:58:32,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 07:58:32,011 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 07:58:32,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 07:58:32,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 07:58:32,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 07:58:32,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 07:58:32,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 07:58:32,013 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 07:58:32,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:58:32,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:58:32,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 07:58:32,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 07:58:32,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 07:58:32,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 07:58:32,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 07:58:32,015 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_acf5e632-a7da-45d1-94c6-ce7a20179887/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 ! call(reach_error())) )
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 -> 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0
[2024-12-02 07:58:32,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 07:58:32,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 07:58:32,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 07:58:32,265 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 07:58:32,266 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 07:58:32,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/forester-heap/sll-optional-2.i
[2024-12-02 07:58:34,932 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/data/71054277a/21000385f11440399a9808ee1e10a32e/FLAG82be60f5c
[2024-12-02 07:58:35,180 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 07:58:35,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/sv-benchmarks/c/forester-heap/sll-optional-2.i
[2024-12-02 07:58:35,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/data/71054277a/21000385f11440399a9808ee1e10a32e/FLAG82be60f5c
[2024-12-02 07:58:35,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/data/71054277a/21000385f11440399a9808ee1e10a32e
[2024-12-02 07:58:35,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 07:58:35,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 07:58:35,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 07:58:35,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 07:58:35,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 07:58:35,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e456574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35, skipping insertion in model container
[2024-12-02 07:58:35,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,238 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 07:58:35,447 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654]
[2024-12-02 07:58:35,453 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:58:35,462 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 07:58:35,499 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654]
[2024-12-02 07:58:35,502 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:58:35,522 INFO L204 MainTranslator]: Completed translation
[2024-12-02 07:58:35,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35 WrapperNode
[2024-12-02 07:58:35,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 07:58:35,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 07:58:35,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 07:58:35,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 07:58:35,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,554 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110
[2024-12-02 07:58:35,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 07:58:35,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 07:58:35,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 07:58:35,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 07:58:35,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,580 INFO L175 MemorySlicer]: Split 28 memory accesses to 2 slices as follows [2, 26]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 17 writes are split as follows [0, 17].
[2024-12-02 07:58:35,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,588 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 07:58:35,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 07:58:35,598 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 07:58:35,598 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 07:58:35,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (1/1) ...
[2024-12-02 07:58:35,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:58:35,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:58:35,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 07:58:35,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 07:58:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 07:58:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 07:58:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 07:58:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 07:58:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 07:58:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 07:58:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 07:58:35,745 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 07:58:35,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 07:58:35,928 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live.
[2024-12-02 07:58:35,928 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 07:58:35,938 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 07:58:35,938 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 07:58:35,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35 BoogieIcfgContainer
[2024-12-02 07:58:35,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 07:58:35,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 07:58:35,941 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 07:58:35,945 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 07:58:35,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:58:35" (1/3) ...
[2024-12-02 07:58:35,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d3941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:58:35, skipping insertion in model container
[2024-12-02 07:58:35,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:35" (2/3) ...
[2024-12-02 07:58:35,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d3941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:58:35, skipping insertion in model container
[2024-12-02 07:58:35,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35" (3/3) ...
[2024-12-02 07:58:35,947 INFO L128 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i
[2024-12-02 07:58:35,962 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 07:58:35,963 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sll-optional-2.i that has 1 procedures, 28 locations, 1 initial locations, 4 loop locations, and 1 error locations.
[2024-12-02 07:58:36,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 07:58:36,021 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=LoopHeads, 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;@2603e8e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 07:58:36,021 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 07:58:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 27 states have internal predecessors, (42), 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)
[2024-12-02 07:58:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 07:58:36,030 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:58:36,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:58:36,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:58:36,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:58:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1527087644, now seen corresponding path program 1 times
[2024-12-02 07:58:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:58:36,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63341985]
[2024-12-02 07:58:36,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:58:36,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:58:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:58:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:58:36,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:58:36,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63341985]
[2024-12-02 07:58:36,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63341985] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:58:36,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:58:36,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 07:58:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576216534]
[2024-12-02 07:58:36,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:58:36,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 07:58:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:58:36,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 07:58:36,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 07:58:36,225 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 27 states have internal predecessors, (42), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2024-12-02 07:58:36,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:58:36,234 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions.
[2024-12-02 07:58:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 07:58:36,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11
[2024-12-02 07:58:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:58:36,241 INFO L225 Difference]: With dead ends: 46
[2024-12-02 07:58:36,241 INFO L226 Difference]: Without dead ends: 19
[2024-12-02 07:58:36,243 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
[2024-12-02 07:58:36,245 INFO L435 NwaCegarLoop]: 36 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, 36 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
[2024-12-02 07:58:36,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:58:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-12-02 07:58:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-12-02 07:58:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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)
[2024-12-02 07:58:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions.
[2024-12-02 07:58:36,270 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11
[2024-12-02 07:58:36,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:58:36,270 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions.
[2024-12-02 07:58:36,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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)
[2024-12-02 07:58:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions.
[2024-12-02 07:58:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 07:58:36,271 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:58:36,271 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:58:36,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 07:58:36,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:58:36,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:58:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1323350427, now seen corresponding path program 1 times
[2024-12-02 07:58:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:58:36,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193792780]
[2024-12-02 07:58:36,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:58:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:58:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 07:58:36,327 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 07:58:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 07:58:36,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 07:58:36,381 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 07:58:36,383 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 07:58:36,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 07:58:36,386 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-02 07:58:36,400 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 07:58:36,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:58:36 BoogieIcfgContainer
[2024-12-02 07:58:36,402 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 07:58:36,403 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 07:58:36,403 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 07:58:36,403 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 07:58:36,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35" (3/4) ...
[2024-12-02 07:58:36,405 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-02 07:58:36,431 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5.
[2024-12-02 07:58:36,464 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 07:58:36,464 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 07:58:36,464 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 07:58:36,465 INFO L158 Benchmark]: Toolchain (without parser) took 1256.78ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 104.8MB in the end (delta: 10.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,465 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 07:58:36,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.85ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 98.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.28ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 07:58:36,466 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,466 INFO L158 Benchmark]: RCFGBuilder took 340.45ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 78.5MB in the end (delta: 15.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,466 INFO L158 Benchmark]: TraceAbstraction took 461.71ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 109.5MB in the end (delta: -31.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,467 INFO L158 Benchmark]: Witness Printer took 61.25ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 104.8MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:58:36,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 313.85ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 98.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 31.28ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.44ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 340.45ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 78.5MB in the end (delta: 15.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 461.71ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 109.5MB in the end (delta: -31.4MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB.
* Witness Printer took 61.25ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 104.8MB in the end (delta: 4.7MB). 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: 1007]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L996] SLL* head = malloc(sizeof(SLL));
[L997] head->next = ((void*)0)
[L998] COND TRUE __VERIFIER_nondet_int()
[L998] head->data = 2
[L998] head->opt = malloc(sizeof(SLL))
[L998] EXPR head->opt
[L998] head->opt->next = ((void*)0)
[L999] SLL* x = head;
VAL [head={-1:0}, x={-1:0}]
[L1001] COND FALSE !(__VERIFIER_nondet_int())
[L1004] x = head
VAL [head={-1:0}, x={-1:0}]
[L1005] COND TRUE x != ((void*)0)
VAL [head={-1:0}, x={-1:0}]
[L1007] EXPR x->data
[L1007] EXPR x->data == 2 && x->opt == x
VAL [head={-1:0}, x={-1:0}]
[L1007] EXPR x->data == 2 && x->opt == x
[L1007] EXPR x->opt
[L1007] EXPR x->data == 2 && x->opt == x
VAL [head={-1:0}, x={-1:0}]
[L1007] COND TRUE !(x->data == 2 && x->opt == x)
[L1007] reach_error()
VAL [head={-1:0}, x={-1:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 36 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, 36 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=28occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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!
[2024-12-02 07:58:36,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf5e632-a7da-45d1-94c6-ce7a20179887/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