./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9 --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-12-02 23:23:02,245 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-02 23:23:02,315 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf
[2023-12-02 23:23:02,320 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-02 23:23:02,321 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver
[2023-12-02 23:23:02,344 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-02 23:23:02,345 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-02 23:23:02,346 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-02 23:23:02,346 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-02 23:23:02,347 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-02 23:23:02,347 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-02 23:23:02,348 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-02 23:23:02,348 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-02 23:23:02,349 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2023-12-02 23:23:02,349 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2023-12-02 23:23:02,350 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2023-12-02 23:23:02,350 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-02 23:23:02,351 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-12-02 23:23:02,351 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-02 23:23:02,352 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-02 23:23:02,352 INFO  L151        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2023-12-02 23:23:02,353 INFO  L153        SettingsManager]:  * Timeout in seconds=1000000
[2023-12-02 23:23:02,354 INFO  L153        SettingsManager]:  * Theory for external solver=ALL
[2023-12-02 23:23:02,354 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-02 23:23:02,355 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-12-02 23:23:02,355 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-02 23:23:02,356 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-02 23:23:02,356 INFO  L153        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2023-12-02 23:23:02,356 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-02 23:23:02,357 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9
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 -> Kojak
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 -> 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91
[2023-12-02 23:23:02,606 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-02 23:23:02,629 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-02 23:23:02,632 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-02 23:23:02,633 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-02 23:23:02,634 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-02 23:23:02,636 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i
[2023-12-02 23:23:07,587 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-02 23:23:07,751 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-02 23:23:07,751 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i
[2023-12-02 23:23:07,757 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/96731dbc4/a155db4388fc4fe3ba3a520aeeab01c9/FLAG6c20fc725
[2023-12-02 23:23:07,767 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/data/96731dbc4/a155db4388fc4fe3ba3a520aeeab01c9
[2023-12-02 23:23:07,770 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-02 23:23:07,771 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-12-02 23:23:07,772 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-02 23:23:07,772 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-02 23:23:07,776 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-02 23:23:07,776 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:07,777 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229eeffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07, skipping insertion in model container
[2023-12-02 23:23:07,777 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:07,794 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-02 23:23:07,927 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-02 23:23:07,937 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-02 23:23:07,954 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-02 23:23:07,966 INFO  L206         MainTranslator]: Completed translation
[2023-12-02 23:23:07,966 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07 WrapperNode
[2023-12-02 23:23:07,966 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-02 23:23:07,967 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-02 23:23:07,968 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-02 23:23:07,968 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-02 23:23:07,974 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:07,980 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:07,994 INFO  L138                Inliner]: procedures = 13, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28
[2023-12-02 23:23:07,995 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-02 23:23:07,995 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-02 23:23:07,995 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-02 23:23:07,995 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-02 23:23:08,002 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,002 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,004 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,004 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,009 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,011 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,012 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,013 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,015 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-02 23:23:08,016 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-02 23:23:08,016 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-02 23:23:08,016 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-02 23:23:08,017 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:23:07" (1/1) ...
[2023-12-02 23:23:08,023 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-12-02 23:23:08,034 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3
[2023-12-02 23:23:08,045 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null)
[2023-12-02 23:23:08,050 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-02 23:23:08,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-02 23:23:08,080 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-12-02 23:23:08,081 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-02 23:23:08,147 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-02 23:23:08,150 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-02 23:23:08,252 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-02 23:23:08,274 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-02 23:23:08,274 INFO  L309             CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-02 23:23:08,275 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08 BoogieIcfgContainer
[2023-12-02 23:23:08,275 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-02 23:23:08,276 INFO  L112        PluginConnector]: ------------------------CodeCheck----------------------------
[2023-12-02 23:23:08,276 INFO  L270        PluginConnector]: Initializing CodeCheck...
[2023-12-02 23:23:08,284 INFO  L274        PluginConnector]: CodeCheck initialized
[2023-12-02 23:23:08,284 INFO  L184        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08" (1/1) ...
[2023-12-02 23:23:08,292 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 23:23:08,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:08,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions.
[2023-12-02 23:23:08,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions.
[2023-12-02 23:23:08,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2023-12-02 23:23:08,339 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:08,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:08,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:08,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:08,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:08,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2023-12-02 23:23:08,546 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2023-12-02 23:23:08,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2023-12-02 23:23:08,547 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:08,547 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:08,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:08,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:08,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:08,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2023-12-02 23:23:08,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2023-12-02 23:23:08,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-12-02 23:23:08,755 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:08,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:08,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:08,801 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:08,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:08,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2023-12-02 23:23:08,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2023-12-02 23:23:08,816 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-12-02 23:23:08,816 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:08,816 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:08,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:08,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:09,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:09,010 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2023-12-02 23:23:09,010 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2023-12-02 23:23:09,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2023-12-02 23:23:09,011 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:09,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:09,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:09,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:09,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:09,271 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions.
[2023-12-02 23:23:09,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions.
[2023-12-02 23:23:09,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-12-02 23:23:09,271 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-12-02 23:23:09,272 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 23:23:09,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-02 23:23:09,388 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-02 23:23:09,800 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-02 23:23:09,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions.
[2023-12-02 23:23:09,800 INFO  L276                IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions.
[2023-12-02 23:23:09,801 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2023-12-02 23:23:09,801 WARN  L420      CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations.
[2023-12-02 23:23:09,810 INFO  L751      CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold
[2023-12-02 23:23:09,835 INFO  L560      CodeCheckObserver]: Invariant with dag size 3
[2023-12-02 23:23:09,839 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:23:09 ImpRootNode
[2023-12-02 23:23:09,840 INFO  L131        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2023-12-02 23:23:09,840 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-12-02 23:23:09,840 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-12-02 23:23:09,841 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-12-02 23:23:09,841 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:23:08" (3/4) ...
[2023-12-02 23:23:09,843 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2023-12-02 23:23:09,849 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2023-12-02 23:23:09,849 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2023-12-02 23:23:09,849 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-12-02 23:23:09,850 INFO  L943   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-12-02 23:23:09,918 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml
[2023-12-02 23:23:09,918 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/witness.yml
[2023-12-02 23:23:09,918 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-12-02 23:23:09,919 INFO  L158              Benchmark]: Toolchain (without parser) took 2147.56ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 103.2MB in the beginning and 111.8MB in the end (delta: -8.6MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,919 INFO  L158              Benchmark]: CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 23:23:09,920 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 194.49ms. Allocated memory is still 157.3MB. Free memory was 103.2MB in the beginning and 92.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,920 INFO  L158              Benchmark]: Boogie Procedure Inliner took 27.32ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,921 INFO  L158              Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 23:23:09,921 INFO  L158              Benchmark]: RCFGBuilder took 259.76ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 79.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,922 INFO  L158              Benchmark]: CodeCheck took 1563.43ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 79.6MB in the beginning and 115.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,922 INFO  L158              Benchmark]: Witness Printer took 77.69ms. Allocated memory is still 211.8MB. Free memory was 115.9MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-12-02 23:23:09,925 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck:
  - StatisticsResult: Ultimate CodeCheck benchmark data
    CFG has 1 procedures, 14 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 2 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: 3]: all allocated memory was freed
    For all program executions holds that all allocated memory was freed at this location
  - PositiveResult [Line: 27]: all allocated memory was freed
    For all program executions holds that all allocated memory was freed at this location
  - AllSpecificationsHoldResult: All specifications hold
    6 specifications checked. All of them hold
  - InvariantResult [Line: 27]: Loop Invariant
    Derived loop invariant: null
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 194.49ms. Allocated memory is still 157.3MB. Free memory was 103.2MB in the beginning and 92.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 27.32ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 91.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 19.73ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 90.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 259.76ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 79.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * CodeCheck took 1563.43ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 79.6MB in the beginning and 115.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB.
 * Witness Printer took 77.69ms. Allocated memory is still 211.8MB. Free memory was 115.9MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
RESULT: Ultimate proved your program to be correct!
[2023-12-02 23:23:09,944 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd63443-2e5e-4dd7-a0c3-1bbb7f3a158c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE