./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/list_flag-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:01:56,030 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:01:56,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 08:01:56,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:01:56,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:01:56,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:01:56,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:01:56,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:01:56,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:01:56,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:01:56,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:01:56,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:01:56,243 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:01:56,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:01:56,246 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 08:01:56,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:01:56,247 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 08:01:56,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:01:56,248 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 08:01:56,248 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 08:01:56,249 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 08:01:56,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:01:56,250 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 08:01:56,250 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:01:56,251 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 08:01:56,251 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:01:56,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:01:56,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:01:56,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:01:56,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:01:56,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:01:56,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:01:56,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:01:56,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:01:56,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:01:56,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:01:56,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:01:56,257 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:01:56,257 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
[2023-11-19 08:01:56,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:01:56,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:01:56,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:01:56,674 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:01:56,675 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:01:56,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/list-properties/list_flag-2.i
[2023-11-19 08:02:00,037 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:02:00,327 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:02:00,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/sv-benchmarks/c/list-properties/list_flag-2.i
[2023-11-19 08:02:00,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/c88e92b49/9344d350a0074282a64dfdeff85b799d/FLAG716b481e3
[2023-11-19 08:02:00,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/c88e92b49/9344d350a0074282a64dfdeff85b799d
[2023-11-19 08:02:00,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:02:00,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:02:00,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:02:00,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:02:00,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:02:00,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:00" (1/1) ...
[2023-11-19 08:02:00,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f56848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:00, skipping insertion in model container
[2023-11-19 08:02:00,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:00" (1/1) ...
[2023-11-19 08:02:00,458 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:02:00,900 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:02:00,917 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:02:00,979 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:02:01,013 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:02:01,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01 WrapperNode
[2023-11-19 08:02:01,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:02:01,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:02:01,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:02:01,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:02:01,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,068 INFO L138 Inliner]: procedures = 124, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74
[2023-11-19 08:02:01,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:02:01,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:02:01,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:02:01,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:02:01,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:02:01,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:02:01,122 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:02:01,122 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:02:01,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (1/1) ...
[2023-11-19 08:02:01,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:02:01,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2023-11-19 08:02:01,207 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2023-11-19 08:02:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 08:02:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 08:02:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 08:02:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:02:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 08:02:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 08:02:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:02:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:02:01,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:02:01,333 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:02:01,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:02:01,421 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2023-11-19 08:02:01,692 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:02:01,714 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:02:01,714 INFO L302 CfgBuilder]: Removed 3 assume(true) statements.
[2023-11-19 08:02:01,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:01 BoogieIcfgContainer
[2023-11-19 08:02:01,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:02:01,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:02:01,722 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:02:01,726 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:02:01,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:00" (1/3) ...
[2023-11-19 08:02:01,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ecfa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:01, skipping insertion in model container
[2023-11-19 08:02:01,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:01" (2/3) ...
[2023-11-19 08:02:01,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ecfa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:01, skipping insertion in model container
[2023-11-19 08:02:01,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:01" (3/3) ...
[2023-11-19 08:02:01,731 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-2.i
[2023-11-19 08:02:01,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:02:01,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations.
[2023-11-19 08:02:01,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:02:01,836 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@69cd36b7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:02:01,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2023-11-19 08:02:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-19 08:02:01,852 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:01,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:01,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:01,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1037517512, now seen corresponding path program 1 times
[2023-11-19 08:02:01,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:01,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876129077]
[2023-11-19 08:02:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:01,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:02,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:02,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876129077]
[2023-11-19 08:02:02,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876129077] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:02,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:02,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:02:02,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75159521]
[2023-11-19 08:02:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:02,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:02:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:02,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:02:02,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:02:02,126 INFO L87 Difference]: Start difference. First operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:02,154 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions.
[2023-11-19 08:02:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 08:02:02,171 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2023-11-19 08:02:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:02,180 INFO L225 Difference]: With dead ends: 59
[2023-11-19 08:02:02,180 INFO L226 Difference]: Without dead ends: 53
[2023-11-19 08:02:02,182 INFO L412 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
[2023-11-19 08:02:02,191 INFO L413 NwaCegarLoop]: 65 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, 65 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
[2023-11-19 08:02:02,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:02:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2023-11-19 08:02:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2023-11-19 08:02:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 52 states have internal predecessors, (57), 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)
[2023-11-19 08:02:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions.
[2023-11-19 08:02:02,235 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 6
[2023-11-19 08:02:02,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:02,236 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions.
[2023-11-19 08:02:02,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions.
[2023-11-19 08:02:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 08:02:02,237 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:02,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:02,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:02:02,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:02,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2098238129, now seen corresponding path program 1 times
[2023-11-19 08:02:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:02,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121367428]
[2023-11-19 08:02:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:02,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:02,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121367428]
[2023-11-19 08:02:02,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121367428] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:02,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:02,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:02:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361090763]
[2023-11-19 08:02:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:02,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 08:02:02,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:02,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 08:02:02,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 08:02:02,491 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:02,667 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions.
[2023-11-19 08:02:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 08:02:02,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7
[2023-11-19 08:02:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:02,670 INFO L225 Difference]: With dead ends: 61
[2023-11-19 08:02:02,671 INFO L226 Difference]: Without dead ends: 61
[2023-11-19 08:02:02,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 08:02:02,673 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:02,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 27 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 08:02:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2023-11-19 08:02:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56.
[2023-11-19 08:02:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 55 states have internal predecessors, (67), 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)
[2023-11-19 08:02:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2023-11-19 08:02:02,684 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 7
[2023-11-19 08:02:02,684 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions.
[2023-11-19 08:02:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions.
[2023-11-19 08:02:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 08:02:02,685 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:02,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:02,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 08:02:02,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:02,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2098238130, now seen corresponding path program 1 times
[2023-11-19 08:02:02,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:02,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295249999]
[2023-11-19 08:02:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:02,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:02,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295249999]
[2023-11-19 08:02:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295249999] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:02,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:02:02,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237109795]
[2023-11-19 08:02:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:02,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 08:02:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:02,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 08:02:02,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 08:02:02,838 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:02,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:02,965 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions.
[2023-11-19 08:02:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 08:02:02,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7
[2023-11-19 08:02:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:02,968 INFO L225 Difference]: With dead ends: 76
[2023-11-19 08:02:02,968 INFO L226 Difference]: Without dead ends: 76
[2023-11-19 08:02:02,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 08:02:02,970 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:02,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 44 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 08:02:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2023-11-19 08:02:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65.
[2023-11-19 08:02:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 64 states have internal predecessors, (73), 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)
[2023-11-19 08:02:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2023-11-19 08:02:02,980 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 7
[2023-11-19 08:02:02,981 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:02,981 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2023-11-19 08:02:02,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2023-11-19 08:02:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:02:02,982 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:02,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:02,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 08:02:02,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:02,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1259067260, now seen corresponding path program 1 times
[2023-11-19 08:02:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:02,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426983670]
[2023-11-19 08:02:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:03,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:02:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:03,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:02:03,044 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:02:03,045 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (21 of 22 remaining)
[2023-11-19 08:02:03,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 22 remaining)
[2023-11-19 08:02:03,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 22 remaining)
[2023-11-19 08:02:03,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 22 remaining)
[2023-11-19 08:02:03,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 22 remaining)
[2023-11-19 08:02:03,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 22 remaining)
[2023-11-19 08:02:03,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 22 remaining)
[2023-11-19 08:02:03,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 22 remaining)
[2023-11-19 08:02:03,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 22 remaining)
[2023-11-19 08:02:03,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 22 remaining)
[2023-11-19 08:02:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 22 remaining)
[2023-11-19 08:02:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 22 remaining)
[2023-11-19 08:02:03,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 22 remaining)
[2023-11-19 08:02:03,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 22 remaining)
[2023-11-19 08:02:03,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 22 remaining)
[2023-11-19 08:02:03,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 22 remaining)
[2023-11-19 08:02:03,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 22 remaining)
[2023-11-19 08:02:03,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 22 remaining)
[2023-11-19 08:02:03,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 22 remaining)
[2023-11-19 08:02:03,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 22 remaining)
[2023-11-19 08:02:03,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 22 remaining)
[2023-11-19 08:02:03,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (0 of 22 remaining)
[2023-11-19 08:02:03,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 08:02:03,059 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-11-19 08:02:03,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:02:03,077 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated
[2023-11-19 08:02:03,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated
[2023-11-19 08:02:03,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:03 BoogieIcfgContainer
[2023-11-19 08:02:03,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:02:03,086 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:02:03,087 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:02:03,087 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:02:03,088 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:01" (3/4) ...
[2023-11-19 08:02:03,090 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:02:03,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:02:03,092 INFO L158 Benchmark]: Toolchain (without parser) took 2726.41ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 67.4MB in the beginning and 92.0MB in the end (delta: -24.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,093 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:03,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 647.37ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 67.0MB in the beginning and 128.3MB in the end (delta: -61.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.81ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,094 INFO L158 Benchmark]: Boogie Preprocessor took 38.67ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 124.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,095 INFO L158 Benchmark]: RCFGBuilder took 597.66ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 108.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,095 INFO L158 Benchmark]: TraceAbstraction took 1363.79ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 92.0MB in the end (delta: 15.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB.
[2023-11-19 08:02:03,096 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:03,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 647.37ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 67.0MB in the beginning and 128.3MB in the end (delta: -61.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.81ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.67ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 124.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 597.66ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 108.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1363.79ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 92.0MB in the end (delta: 15.8MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB.
* Witness Printer took 5.09ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* 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
- UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: overapproximation of memtrack at line 531.
Possible FailurePath:
[L532] int flag = __VERIFIER_nondet_int();
[L533] List p, a, t;
[L534] a = (List) malloc(sizeof(struct node))
[L535] COND FALSE !(a == 0)
VAL [a={-1:0}, flag=0]
[L536] p = a
VAL [a={-1:0}, flag=0, p={-1:0}]
[L537] COND FALSE !(__VERIFIER_nondet_int())
[L548] p->h = 3
VAL [a={-1:0}, flag=0, p={-1:0}]
[L549] p = a
VAL [a={-1:0}, flag=0, p={-1:0}]
[L550] COND FALSE !(\read(flag))
VAL [a={-1:0}, flag=0, p={-1:0}]
[L554] EXPR p->h
VAL [a={-1:0}, flag=0, p={-1:0}]
[L554] COND FALSE !(p->h == 2)
[L556] EXPR p->h
VAL [a={-1:0}, flag=0, p={-1:0}]
[L556] COND FALSE !(p->h != 3)
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 61 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 115 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 08:02:03,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:02:06,268 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:02:06,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-19 08:02:06,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:02:06,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:02:06,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:02:06,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:02:06,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:02:06,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:02:06,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:02:06,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:02:06,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:02:06,473 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:02:06,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:02:06,475 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 08:02:06,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:02:06,476 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 08:02:06,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:02:06,477 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 08:02:06,478 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 08:02:06,479 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 08:02:06,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:02:06,480 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 08:02:06,480 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 08:02:06,480 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 08:02:06,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:02:06,481 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 08:02:06,482 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:02:06,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:02:06,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:02:06,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:02:06,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:02:06,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:02:06,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:02:06,486 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 08:02:06,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 08:02:06,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:02:06,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:02:06,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:02:06,488 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 08:02:06,488 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:02:06,488 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
[2023-11-19 08:02:06,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:02:06,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:02:06,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:02:06,969 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:02:06,970 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:02:06,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/list-properties/list_flag-2.i
[2023-11-19 08:02:10,505 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:02:10,865 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:02:10,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/sv-benchmarks/c/list-properties/list_flag-2.i
[2023-11-19 08:02:10,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/7e4ce0125/9246f9090f0e45acb438576b314f6f12/FLAGfa636e194
[2023-11-19 08:02:10,899 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/data/7e4ce0125/9246f9090f0e45acb438576b314f6f12
[2023-11-19 08:02:10,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:02:10,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:02:10,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:02:10,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:02:10,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:02:10,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:10" (1/1) ...
[2023-11-19 08:02:10,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2008a17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:10, skipping insertion in model container
[2023-11-19 08:02:10,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:10" (1/1) ...
[2023-11-19 08:02:10,956 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:02:11,377 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:02:11,395 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:02:11,438 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:02:11,475 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:02:11,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11 WrapperNode
[2023-11-19 08:02:11,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:02:11,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:02:11,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:02:11,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:02:11,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,553 INFO L138 Inliner]: procedures = 127, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73
[2023-11-19 08:02:11,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:02:11,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:02:11,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:02:11,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:02:11,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:02:11,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:02:11,615 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:02:11,616 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:02:11,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (1/1) ...
[2023-11-19 08:02:11,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:02:11,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:11,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:11,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:02:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2023-11-19 08:02:11,702 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2023-11-19 08:02:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-19 08:02:11,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 08:02:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:02:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-19 08:02:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 08:02:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-19 08:02:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 08:02:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:02:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:02:11,836 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:02:11,838 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:02:11,859 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2023-11-19 08:02:12,143 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:02:12,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:02:12,161 INFO L302 CfgBuilder]: Removed 3 assume(true) statements.
[2023-11-19 08:02:12,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:12 BoogieIcfgContainer
[2023-11-19 08:02:12,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:02:12,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:02:12,170 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:02:12,174 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:02:12,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:10" (1/3) ...
[2023-11-19 08:02:12,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571bac33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:12, skipping insertion in model container
[2023-11-19 08:02:12,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:11" (2/3) ...
[2023-11-19 08:02:12,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571bac33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:12, skipping insertion in model container
[2023-11-19 08:02:12,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:12" (3/3) ...
[2023-11-19 08:02:12,178 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-2.i
[2023-11-19 08:02:12,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:02:12,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations.
[2023-11-19 08:02:12,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:02:12,270 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6febeec1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:02:12,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2023-11-19 08:02:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-19 08:02:12,283 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:12,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:12,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:12,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1037517512, now seen corresponding path program 1 times
[2023-11-19 08:02:12,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:02:12,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401999433]
[2023-11-19 08:02:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:12,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:12,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:02:12,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:12,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-19 08:02:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:12,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 08:02:12,424 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:12,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:02:12,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 08:02:12,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401999433]
[2023-11-19 08:02:12,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401999433] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:12,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:12,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:02:12,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775379050]
[2023-11-19 08:02:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:12,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:02:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 08:02:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:02:12,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:02:12,511 INFO L87 Difference]: Start difference. First operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:12,530 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions.
[2023-11-19 08:02:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 08:02:12,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2023-11-19 08:02:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:12,541 INFO L225 Difference]: With dead ends: 59
[2023-11-19 08:02:12,541 INFO L226 Difference]: Without dead ends: 53
[2023-11-19 08:02:12,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:02:12,548 INFO L413 NwaCegarLoop]: 65 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, 65 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
[2023-11-19 08:02:12,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:02:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2023-11-19 08:02:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2023-11-19 08:02:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 52 states have internal predecessors, (57), 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)
[2023-11-19 08:02:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions.
[2023-11-19 08:02:12,594 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 6
[2023-11-19 08:02:12,594 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:12,594 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions.
[2023-11-19 08:02:12,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:02:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions.
[2023-11-19 08:02:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 08:02:12,597 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:12,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:12,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:12,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:12,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2098238129, now seen corresponding path program 1 times
[2023-11-19 08:02:12,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:02:12,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871339628]
[2023-11-19 08:02:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:12,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:12,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:02:12,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:12,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-19 08:02:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:12,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:02:12,883 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:12,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2023-11-19 08:02:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:12,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:02:12,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 08:02:12,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871339628]
[2023-11-19 08:02:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871339628] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:12,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:12,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:02:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236914191]
[2023-11-19 08:02:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:12,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 08:02:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 08:02:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 08:02:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 08:02:12,978 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:13,204 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions.
[2023-11-19 08:02:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 08:02:13,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7
[2023-11-19 08:02:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:13,217 INFO L225 Difference]: With dead ends: 61
[2023-11-19 08:02:13,217 INFO L226 Difference]: Without dead ends: 61
[2023-11-19 08:02:13,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 08:02:13,219 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:13,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 27 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 08:02:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2023-11-19 08:02:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56.
[2023-11-19 08:02:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 55 states have internal predecessors, (67), 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)
[2023-11-19 08:02:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2023-11-19 08:02:13,233 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 7
[2023-11-19 08:02:13,233 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:13,234 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions.
[2023-11-19 08:02:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions.
[2023-11-19 08:02:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 08:02:13,236 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:13,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:13,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:13,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:13,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:13,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2098238130, now seen corresponding path program 1 times
[2023-11-19 08:02:13,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:02:13,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065731206]
[2023-11-19 08:02:13,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:13,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:13,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:02:13,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:13,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-11-19 08:02:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:13,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 08:02:13,497 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:13,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2023-11-19 08:02:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:13,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:02:13,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 08:02:13,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065731206]
[2023-11-19 08:02:13,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065731206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:13,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:13,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:02:13,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509198936]
[2023-11-19 08:02:13,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 08:02:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 08:02:13,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 08:02:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 08:02:13,580 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:13,858 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions.
[2023-11-19 08:02:13,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 08:02:13,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7
[2023-11-19 08:02:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:13,861 INFO L225 Difference]: With dead ends: 76
[2023-11-19 08:02:13,861 INFO L226 Difference]: Without dead ends: 76
[2023-11-19 08:02:13,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 08:02:13,863 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:13,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 44 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 08:02:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2023-11-19 08:02:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65.
[2023-11-19 08:02:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 64 states have internal predecessors, (73), 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)
[2023-11-19 08:02:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2023-11-19 08:02:13,883 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 7
[2023-11-19 08:02:13,883 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:13,883 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2023-11-19 08:02:13,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2023-11-19 08:02:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2023-11-19 08:02:13,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 08:02:13,885 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:02:13,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:13,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-11-19 08:02:14,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:14,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2023-11-19 08:02:14,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1259067260, now seen corresponding path program 1 times
[2023-11-19 08:02:14,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 08:02:14,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796919391]
[2023-11-19 08:02:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:14,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 08:02:14,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:14,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-11-19 08:02:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:14,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:02:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:14,241 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2023-11-19 08:02:14,241 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:02:14,242 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (21 of 22 remaining)
[2023-11-19 08:02:14,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 22 remaining)
[2023-11-19 08:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 22 remaining)
[2023-11-19 08:02:14,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 22 remaining)
[2023-11-19 08:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 22 remaining)
[2023-11-19 08:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 22 remaining)
[2023-11-19 08:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 22 remaining)
[2023-11-19 08:02:14,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 22 remaining)
[2023-11-19 08:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 22 remaining)
[2023-11-19 08:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 22 remaining)
[2023-11-19 08:02:14,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 22 remaining)
[2023-11-19 08:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 22 remaining)
[2023-11-19 08:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 22 remaining)
[2023-11-19 08:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 22 remaining)
[2023-11-19 08:02:14,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 22 remaining)
[2023-11-19 08:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 22 remaining)
[2023-11-19 08:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 22 remaining)
[2023-11-19 08:02:14,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 22 remaining)
[2023-11-19 08:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 22 remaining)
[2023-11-19 08:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 22 remaining)
[2023-11-19 08:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 22 remaining)
[2023-11-19 08:02:14,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (0 of 22 remaining)
[2023-11-19 08:02:14,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:14,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 08:02:14,467 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-11-19 08:02:14,470 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:02:14,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated
[2023-11-19 08:02:14,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated
[2023-11-19 08:02:14,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:14 BoogieIcfgContainer
[2023-11-19 08:02:14,492 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:02:14,493 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:02:14,493 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:02:14,493 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:02:14,494 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:12" (3/4) ...
[2023-11-19 08:02:14,496 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:02:14,498 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:02:14,499 INFO L158 Benchmark]: Toolchain (without parser) took 3595.93ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 41.9MB in the beginning and 54.9MB in the end (delta: -13.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,500 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 31.1MB in the end (delta: 54.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.67ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 39.3MB in the end (delta: 2.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.84ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 37.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,502 INFO L158 Benchmark]: Boogie Preprocessor took 59.87ms. Allocated memory is still 67.1MB. Free memory was 37.3MB in the beginning and 35.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,506 INFO L158 Benchmark]: RCFGBuilder took 551.17ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.5MB in the beginning and 48.1MB in the end (delta: -12.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,510 INFO L158 Benchmark]: TraceAbstraction took 2322.46ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 55.4MB in the end (delta: -8.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB.
[2023-11-19 08:02:14,511 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 81.8MB. Free memory was 55.4MB in the beginning and 54.9MB in the end (delta: 496.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:14,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 31.1MB in the end (delta: 54.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 572.67ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 39.3MB in the end (delta: 2.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 75.84ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 37.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 59.87ms. Allocated memory is still 67.1MB. Free memory was 37.3MB in the beginning and 35.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 551.17ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.5MB in the beginning and 48.1MB in the end (delta: -12.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 2322.46ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 55.4MB in the end (delta: -8.0MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB.
* Witness Printer took 4.99ms. Allocated memory is still 81.8MB. Free memory was 55.4MB in the beginning and 54.9MB in the end (delta: 496.2kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* 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
- UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: overapproximation of memtrack at line 531.
Possible FailurePath:
[L532] int flag = __VERIFIER_nondet_int();
[L533] List p, a, t;
[L534] a = (List) malloc(sizeof(struct node))
[L535] COND FALSE !(a == 0)
VAL [a={6:0}]
[L536] p = a
VAL [a={6:0}, p={6:0}]
[L537] COND FALSE !(__VERIFIER_nondet_int())
[L548] p->h = 3
VAL [a={6:0}, p={6:0}]
[L549] p = a
VAL [a={6:0}, p={6:0}]
[L550] COND FALSE !(\read(flag))
VAL [a={6:0}, flag=0, p={6:0}]
[L554] EXPR p->h
VAL [a={6:0}, flag=0, p={6:0}]
[L554] COND FALSE !(p->h == 2)
[L556] EXPR p->h
VAL [a={6:0}, flag=0, p={6:0}]
[L556] COND FALSE !(p->h != 3)
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 61 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 115 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 3 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 08:02:14,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fd3108f-fc6e-48e6-9a86-7b015eccd2cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:
UNKNOWN: Overapproximated counterexample