./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for memory safety (deref-memtrack)
Using default analysis
Version 1dbac8bc
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --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 28eb62e409662a14417b5a67d3fe5de851f13e52
...........................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN
--- Real Ultimate output ---
This is Ultimate 0.1.23-1dbac8b
[2018-11-09 23:06:37,568 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-11-09 23:06:37,569 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-09 23:06:37,577 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-09 23:06:37,577 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-09 23:06:37,578 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-11-09 23:06:37,579 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-11-09 23:06:37,580 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-11-09 23:06:37,581 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-11-09 23:06:37,582 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-11-09 23:06:37,582 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-11-09 23:06:37,582 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-11-09 23:06:37,583 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-11-09 23:06:37,584 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-09 23:06:37,584 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-09 23:06:37,585 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-09 23:06:37,586 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-09 23:06:37,587 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-09 23:06:37,588 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-11-09 23:06:37,589 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-11-09 23:06:37,590 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-09 23:06:37,591 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-11-09 23:06:37,592 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-11-09 23:06:37,592 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-11-09 23:06:37,593 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-09 23:06:37,593 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-09 23:06:37,594 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-11-09 23:06:37,595 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-11-09 23:06:37,595 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-11-09 23:06:37,596 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-11-09 23:06:37,596 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-11-09 23:06:37,596 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-11-09 23:06:37,597 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-11-09 23:06:37,597 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-11-09 23:06:37,597 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-11-09 23:06:37,598 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-11-09 23:06:37,598 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2018-11-09 23:06:37,608 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-11-09 23:06:37,608 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-09 23:06:37,609 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-11-09 23:06:37,609 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-11-09 23:06:37,610 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-11-09 23:06:37,610 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * Bitprecise bitfields=true
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-11-09 23:06:37,611 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-09 23:06:37,611 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-11-09 23:06:37,612 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-11-09 23:06:37,612 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-11-09 23:06:37,612 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-11-09 23:06:37,612 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-09 23:06:37,612 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-11-09 23:06:37,612 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-11-09 23:06:37,613 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-11-09 23:06:37,613 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
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-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> 28eb62e409662a14417b5a67d3fe5de851f13e52
[2018-11-09 23:06:37,634 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-09 23:06:37,642 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-09 23:06:37,644 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-09 23:06:37,645 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-11-09 23:06:37,645 INFO  L276        PluginConnector]: CDTParser initialized
[2018-11-09 23:06:37,646 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i
[2018-11-09 23:06:37,681 INFO  L218              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/data/c6114e150/241c9c40071f46a88eec7248d96bdf40/FLAGe598c138b
[2018-11-09 23:06:38,017 INFO  L298              CDTParser]: Found 1 translation units.
[2018-11-09 23:06:38,017 INFO  L158              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i
[2018-11-09 23:06:38,024 INFO  L346              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/data/c6114e150/241c9c40071f46a88eec7248d96bdf40/FLAGe598c138b
[2018-11-09 23:06:38,034 INFO  L354              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_678ea041-5b4c-4457-8654-857b32c3ab08/bin-2019/uautomizer/data/c6114e150/241c9c40071f46a88eec7248d96bdf40
[2018-11-09 23:06:38,036 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-09 23:06:38,037 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-11-09 23:06:38,038 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-09 23:06:38,038 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-09 23:06:38,041 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-09 23:06:38,042 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:06:38" (1/1) ...
[2018-11-09 23:06:38,044 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fce3983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:06:38, skipping insertion in model container
[2018-11-09 23:06:38,044 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:06:38" (1/1) ...
[2018-11-09 23:06:38,052 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-11-09 23:06:38,083 INFO  L174         MainTranslator]: Built tables and reachable declarations
[2018-11-09 23:06:38,185 WARN  L309         MainTranslator]: Unsupported Syntax: bitfield implementation not yet bitprecise (soundness first)
[2018-11-09 23:06:38,185 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7bdc3f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:06:38, skipping insertion in model container
[2018-11-09 23:06:38,185 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-09 23:06:38,185 INFO  L184        ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor
[2018-11-09 23:06:38,186 INFO  L168              Benchmark]: Toolchain (without parser) took 149.23 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 945.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB.
[2018-11-09 23:06:38,187 INFO  L168              Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-09 23:06:38,187 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 147.45 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 945.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB.
[2018-11-09 23:06:38,188 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 147.45 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 945.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - UnsupportedSyntaxResult [Line: 76]: Unsupported Syntax
    bitfield implementation not yet bitprecise (soundness first)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...