./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (memcleanup)
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_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/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_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/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-memcleanup) )
--witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-12-03 04:06:27,734 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-03 04:06:27,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf
[2023-12-03 04:06:27,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-03 04:06:27,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver
[2023-12-03 04:06:27,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-03 04:06:27,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-03 04:06:27,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-03 04:06:27,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-03 04:06:27,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-03 04:06:27,836 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-03 04:06:27,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-12-03 04:06:27,837 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-03 04:06:27,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-03 04:06:27,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-03 04:06:27,839 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-12-03 04:06:27,839 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-12-03 04:06:27,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-03 04:06:27,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-03 04:06:27,841 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-12-03 04:06:27,842 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-03 04:06:27,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-03 04:06:27,843 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-03 04:06:27,844 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2023-12-03 04:06:27,844 INFO L153 SettingsManager]: * Timeout in seconds=1000000
[2023-12-03 04:06:27,844 INFO L153 SettingsManager]: * Theory for external solver=ALL
[2023-12-03 04:06:27,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-03 04:06:27,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-12-03 04:06:27,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-03 04:06:27,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-03 04:06:27,847 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN
[2023-12-03 04:06:27,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-03 04:06:27,847 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_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936
[2023-12-03 04:06:28,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-03 04:06:28,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-03 04:06:28,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-03 04:06:28,086 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-03 04:06:28,087 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-03 04:06:28,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i
[2023-12-03 04:06:30,901 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-03 04:06:31,109 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-03 04:06:31,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i
[2023-12-03 04:06:31,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/data/76cfefd13/704b6b7507094d3a9d783a082668eaab/FLAGde02d5e17
[2023-12-03 04:06:31,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/data/76cfefd13/704b6b7507094d3a9d783a082668eaab
[2023-12-03 04:06:31,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-03 04:06:31,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-12-03 04:06:31,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-03 04:06:31,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-03 04:06:31,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-03 04:06:31,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3e273e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31, skipping insertion in model container
[2023-12-03 04:06:31,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,197 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-03 04:06:31,473 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-03 04:06:31,483 INFO L202 MainTranslator]: Completed pre-run
[2023-12-03 04:06:31,520 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-03 04:06:31,551 INFO L206 MainTranslator]: Completed translation
[2023-12-03 04:06:31,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31 WrapperNode
[2023-12-03 04:06:31,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-03 04:06:31,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-03 04:06:31,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-03 04:06:31,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-03 04:06:31,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,595 INFO L138 Inliner]: procedures = 125, calls = 16, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 92
[2023-12-03 04:06:31,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-03 04:06:31,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-03 04:06:31,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-03 04:06:31,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-03 04:06:31,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-03 04:06:31,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-03 04:06:31,625 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-03 04:06:31,625 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-03 04:06:31,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-12-03 04:06:31,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/z3
[2023-12-03 04:06:31,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null)
[2023-12-03 04:06:31,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process
[2023-12-03 04:06:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-12-03 04:06:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-03 04:06:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-12-03 04:06:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-12-03 04:06:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-03 04:06:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-12-03 04:06:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-03 04:06:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-03 04:06:31,785 INFO L241 CfgBuilder]: Building ICFG
[2023-12-03 04:06:31,787 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-03 04:06:31,907 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-03 04:06:31,946 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-03 04:06:31,947 INFO L309 CfgBuilder]: Removed 4 assume(true) statements.
[2023-12-03 04:06:31,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:06:31 BoogieIcfgContainer
[2023-12-03 04:06:31,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-03 04:06:31,949 INFO L112 PluginConnector]: ------------------------CodeCheck----------------------------
[2023-12-03 04:06:31,949 INFO L270 PluginConnector]: Initializing CodeCheck...
[2023-12-03 04:06:31,959 INFO L274 PluginConnector]: CodeCheck initialized
[2023-12-03 04:06:31,960 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:06:31" (1/1) ...
[2023-12-03 04:06:31,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-03 04:06:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions.
[2023-12-03 04:06:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions.
[2023-12-03 04:06:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-12-03 04:06:32,037 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-03 04:06:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:32,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions.
[2023-12-03 04:06:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions.
[2023-12-03 04:06:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-12-03 04:06:32,185 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-03 04:06:32,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions.
[2023-12-03 04:06:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions.
[2023-12-03 04:06:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-12-03 04:06:32,390 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:32,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-03 04:06:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions.
[2023-12-03 04:06:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions.
[2023-12-03 04:06:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-12-03 04:06:32,683 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:32,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-03 04:06:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 39 transitions.
[2023-12-03 04:06:33,498 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 39 transitions.
[2023-12-03 04:06:33,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2023-12-03 04:06:33,500 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-03 04:06:33,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 23 states and 40 transitions.
[2023-12-03 04:06:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 40 transitions.
[2023-12-03 04:06:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-12-03 04:06:33,948 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:33,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-03 04:06:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 24 states and 42 transitions.
[2023-12-03 04:06:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 42 transitions.
[2023-12-03 04:06:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-03 04:06:34,776 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:34,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-03 04:06:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions.
[2023-12-03 04:06:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions.
[2023-12-03 04:06:35,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-03 04:06:35,066 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:35,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-12-03 04:06:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:35,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions.
[2023-12-03 04:06:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions.
[2023-12-03 04:06:35,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2023-12-03 04:06:35,664 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-03 04:06:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2023-12-03 04:06:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-12-03 04:06:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions.
[2023-12-03 04:06:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions.
[2023-12-03 04:06:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2023-12-03 04:06:38,908 INFO L423 CodeCheckObserver]: Error Path is FOUND.
[2023-12-03 04:06:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-03 04:06:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-03 04:06:38,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-12-03 04:06:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-03 04:06:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-03 04:06:39,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-12-03 04:06:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-03 04:06:39,073 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations.
[2023-12-03 04:06:39,099 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated
[2023-12-03 04:06:39,099 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated
[2023-12-03 04:06:39,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:06:39 ImpRootNode
[2023-12-03 04:06:39,105 INFO L131 PluginConnector]: ------------------------ END CodeCheck----------------------------
[2023-12-03 04:06:39,105 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-12-03 04:06:39,106 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-12-03 04:06:39,106 INFO L274 PluginConnector]: Witness Printer initialized
[2023-12-03 04:06:39,106 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:06:31" (3/4) ...
[2023-12-03 04:06:39,107 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-12-03 04:06:39,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated
[2023-12-03 04:06:39,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated
[2023-12-03 04:06:39,154 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml
[2023-12-03 04:06:39,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-12-03 04:06:39,155 INFO L158 Benchmark]: Toolchain (without parser) took 8012.88ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 57.9MB in the end (delta: 64.6MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,156 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-12-03 04:06:39,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.59ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 105.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.15ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,157 INFO L158 Benchmark]: Boogie Preprocessor took 27.92ms. Allocated memory is still 169.9MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,158 INFO L158 Benchmark]: RCFGBuilder took 324.17ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 86.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,158 INFO L158 Benchmark]: CodeCheck took 7155.83ms. Allocated memory is still 169.9MB. Free memory was 86.8MB in the beginning and 60.9MB in the end (delta: 25.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,159 INFO L158 Benchmark]: Witness Printer took 49.02ms. Allocated memory is still 169.9MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-03 04:06:39,161 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 306 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 306 mSolverCounterUnsat, 98 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1122 GetRequests, 975 SyntacticMatches, 11 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5468 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 22/36 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
- CounterExampleResult [Line: 12]: not all allocated memory was freed
not all allocated memory was freed
We found a FailurePath:
[L603] int len = 2;
VAL [len=2]
[L604] len < 32 && __VERIFIER_nondet_int()
[L604] len < 32 && __VERIFIER_nondet_int()
VAL [len=2]
[L604] COND FALSE !(len < 32 && __VERIFIER_nondet_int())
[L607] CALL, EXPR sll_create(len + 1)
[L575] SLL head = ((void *)0);
VAL [\old(len)=3, head={0:0}, len=3]
[L576] COND TRUE len > 0
[L577] SLL new_head = (SLL) malloc(sizeof(struct node));
[L578] COND FALSE, EXPR !(((void *)0) == new_head)
[L581] EXPR new_head->next = head
[L582] EXPR head = new_head
[L583] EXPR len--
[L576-L584] {
SLL new_head = (SLL) malloc(sizeof(struct node));
if(((void *)0) == new_head) {
myexit(1);
}
new_head->next = head;
head = new_head;
len--;
}
VAL [\old(len)=3, head={-2:0}, len=2]
[L576] COND TRUE len > 0
[L577] SLL new_head = (SLL) malloc(sizeof(struct node));
[L578] COND FALSE, EXPR !(((void *)0) == new_head)
[L581] EXPR new_head->next = head
[L582] EXPR head = new_head
[L583] EXPR len--
[L576-L584] {
SLL new_head = (SLL) malloc(sizeof(struct node));
if(((void *)0) == new_head) {
myexit(1);
}
new_head->next = head;
head = new_head;
len--;
}
VAL [\old(len)=3, head={-3:0}, len=1]
[L576] COND TRUE len > 0
[L577] SLL new_head = (SLL) malloc(sizeof(struct node));
[L578] COND FALSE, EXPR !(((void *)0) == new_head)
[L581] EXPR new_head->next = head
[L582] EXPR head = new_head
[L583] EXPR len--
[L576-L584] {
SLL new_head = (SLL) malloc(sizeof(struct node));
if(((void *)0) == new_head) {
myexit(1);
}
new_head->next = head;
head = new_head;
len--;
}
VAL [\old(len)=3, head={-1:0}, len=0]
[L576] COND FALSE !(len > 0)
[L585] return head;
[L607] RET, EXPR sll_create(len + 1)
[L607] SLL s = sll_create(len + 1);
[L608] CALL, EXPR sll_length(s)
[L588] int len = 0;
VAL [head={-1:0}, head={-1:0}, len=0]
[L589] COND TRUE \read(head)
[L590] len++
[L591] EXPR head->next
[L591] head = head->next
[L589] COND TRUE \read(head)
[L590] len++
[L591] EXPR head->next
[L591] head = head->next
[L589] COND TRUE \read(head)
[L590] len++
[L591] EXPR head->next
[L591] head = head->next
[L589] COND FALSE !(\read(head))
[L593] return len;
[L608] RET, EXPR sll_length(s)
[L608] COND TRUE len != sll_length(s)
[L613] CALL reach_error()
[L12] COND FALSE !(0)
[L12] __assert_fail ("0", "sll_length_check-1.c", 3, __extension__ __PRETTY_FUNCTION__)
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 408.59ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 105.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.15ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 27.92ms. Allocated memory is still 169.9MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 324.17ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 86.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* CodeCheck took 7155.83ms. Allocated memory is still 169.9MB. Free memory was 86.8MB in the beginning and 60.9MB in the end (delta: 25.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB.
* Witness Printer took 49.02ms. Allocated memory is still 169.9MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
RESULT: Ultimate proved your program to be incorrect!
[2023-12-03 04:06:39,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5caed770-d9f7-49e1-b83a-ae0b2a1ac591/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(valid-memcleanup)