./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC --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 ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:03:17,742 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:03:17,841 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-24 00:03:17,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:03:17,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:03:17,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:03:17,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:03:17,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:03:17,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:03:17,887 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:03:17,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:03:17,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:03:17,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:03:17,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:03:17,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 00:03:17,890 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:03:17,891 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:03:17,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:03:17,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:03:17,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:03:17,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:03:17,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:03:17,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:03:17,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:03:17,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:03:17,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:03:17,894 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:03:17,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:03:17,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:03:17,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:03:17,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:03:17,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:03:17,895 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC
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 -> ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93
[2024-11-24 00:03:18,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:03:18,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:03:18,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:03:18,259 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:03:18,259 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:03:18,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i
[2024-11-24 00:03:21,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/data/8fd5ff7e6/a23b76801c98467f9f6ce5c0b117bc82/FLAG0f1d8a72e
[2024-11-24 00:03:21,522 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:03:21,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i
[2024-11-24 00:03:21,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/data/8fd5ff7e6/a23b76801c98467f9f6ce5c0b117bc82/FLAG0f1d8a72e
[2024-11-24 00:03:21,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/data/8fd5ff7e6/a23b76801c98467f9f6ce5c0b117bc82
[2024-11-24 00:03:21,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:03:21,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:03:21,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:03:21,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:03:21,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:03:21,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:21" (1/1) ...
[2024-11-24 00:03:21,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379715eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:21, skipping insertion in model container
[2024-11-24 00:03:21,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:21" (1/1) ...
[2024-11-24 00:03:21,611 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:03:21,888 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-24 00:03:21,892 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:03:21,908 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:03:21,979 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:03:22,014 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:03:22,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22 WrapperNode
[2024-11-24 00:03:22,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:03:22,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:03:22,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:03:22,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:03:22,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,058 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64
[2024-11-24 00:03:22,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:03:22,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:03:22,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:03:22,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:03:22,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,083 INFO L175 MemorySlicer]: Split 7 memory accesses to 1 slices as follows [7]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3].
[2024-11-24 00:03:22,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,089 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:03:22,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:03:22,098 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:03:22,098 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:03:22,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (1/1) ...
[2024-11-24 00:03:22,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:03:22,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:22,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:03:22,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:03:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 00:03:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 00:03:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-24 00:03:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 00:03:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:03:22,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:03:22,266 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:03:22,268 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:03:22,487 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live.
[2024-11-24 00:03:22,487 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:03:22,500 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:03:22,501 INFO L312 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-24 00:03:22,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:22 BoogieIcfgContainer
[2024-11-24 00:03:22,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:03:22,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:03:22,505 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:03:22,510 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:03:22,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:03:21" (1/3) ...
[2024-11-24 00:03:22,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f00a65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:22, skipping insertion in model container
[2024-11-24 00:03:22,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:22" (2/3) ...
[2024-11-24 00:03:22,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f00a65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:22, skipping insertion in model container
[2024-11-24 00:03:22,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:22" (3/3) ...
[2024-11-24 00:03:22,514 INFO L128 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i
[2024-11-24 00:03:22,536 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:03:22,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG java_BubbleSort-alloca-1.i that has 1 procedures, 43 locations, 1 initial locations, 3 loop locations, and 15 error locations.
[2024-11-24 00:03:22,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:03:22,594 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@4872ff07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:03:22,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2024-11-24 00:03:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 00:03:22,605 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:22,605 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:22,606 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:22,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1804969386, now seen corresponding path program 1 times
[2024-11-24 00:03:22,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:22,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197636824]
[2024-11-24 00:03:22,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:22,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:22,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:22,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197636824]
[2024-11-24 00:03:22,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197636824] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:22,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:22,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:03:22,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249996994]
[2024-11-24 00:03:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:22,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:03:22,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:23,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:03:23,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:03:23,034 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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)
[2024-11-24 00:03:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:23,129 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions.
[2024-11-24 00:03:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:03:23,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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
[2024-11-24 00:03:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:23,139 INFO L225 Difference]: With dead ends: 42
[2024-11-24 00:03:23,140 INFO L226 Difference]: Without dead ends: 40
[2024-11-24 00:03:23,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:03:23,145 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:23,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:03:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-24 00:03:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-24 00:03:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions.
[2024-11-24 00:03:23,182 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 7
[2024-11-24 00:03:23,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:23,182 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions.
[2024-11-24 00:03:23,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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)
[2024-11-24 00:03:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions.
[2024-11-24 00:03:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 00:03:23,183 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:23,183 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:23,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:03:23,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:23,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:23,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1804969387, now seen corresponding path program 1 times
[2024-11-24 00:03:23,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:23,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288222382]
[2024-11-24 00:03:23,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:23,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:23,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:23,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288222382]
[2024-11-24 00:03:23,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288222382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:23,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:23,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:03:23,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216280987]
[2024-11-24 00:03:23,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:23,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:03:23,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:23,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:03:23,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:03:23,568 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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)
[2024-11-24 00:03:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:23,671 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions.
[2024-11-24 00:03:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:03:23,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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
[2024-11-24 00:03:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:23,672 INFO L225 Difference]: With dead ends: 51
[2024-11-24 00:03:23,673 INFO L226 Difference]: Without dead ends: 51
[2024-11-24 00:03:23,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:03:23,675 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:23,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 103 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:03:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-24 00:03:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44.
[2024-11-24 00:03:23,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.6) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions.
[2024-11-24 00:03:23,685 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 7
[2024-11-24 00:03:23,685 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:23,685 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions.
[2024-11-24 00:03:23,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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)
[2024-11-24 00:03:23,685 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions.
[2024-11-24 00:03:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 00:03:23,686 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:23,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:23,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:03:23,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:23,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1806816429, now seen corresponding path program 1 times
[2024-11-24 00:03:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761499968]
[2024-11-24 00:03:23,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:24,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:24,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761499968]
[2024-11-24 00:03:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761499968] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:24,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:03:24,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132064305]
[2024-11-24 00:03:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:03:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:24,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:03:24,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:03:24,089 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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)
[2024-11-24 00:03:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:24,216 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions.
[2024-11-24 00:03:24,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:03:24,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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
[2024-11-24 00:03:24,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:24,218 INFO L225 Difference]: With dead ends: 48
[2024-11-24 00:03:24,218 INFO L226 Difference]: Without dead ends: 48
[2024-11-24 00:03:24,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:03:24,219 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:24,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 113 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:03:24,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-24 00:03:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43.
[2024-11-24 00:03:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions.
[2024-11-24 00:03:24,230 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 7
[2024-11-24 00:03:24,230 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:24,230 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions.
[2024-11-24 00:03:24,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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)
[2024-11-24 00:03:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions.
[2024-11-24 00:03:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-24 00:03:24,233 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:24,233 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:24,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:03:24,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:24,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:24,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1215080348, now seen corresponding path program 1 times
[2024-11-24 00:03:24,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:24,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781218305]
[2024-11-24 00:03:24,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:24,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:24,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:24,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781218305]
[2024-11-24 00:03:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781218305] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:03:24,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475416459]
[2024-11-24 00:03:24,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:24,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:24,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:24,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:03:24,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:03:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:24,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:03:24,464 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:03:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:24,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:03:24,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475416459] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:24,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:03:24,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7
[2024-11-24 00:03:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731769787]
[2024-11-24 00:03:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:24,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:03:24,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:24,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:03:24,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-24 00:03:24,555 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:24,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:24,594 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions.
[2024-11-24 00:03:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:03:24,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-24 00:03:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:24,597 INFO L225 Difference]: With dead ends: 50
[2024-11-24 00:03:24,597 INFO L226 Difference]: Without dead ends: 50
[2024-11-24 00:03:24,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-24 00:03:24,598 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:24,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 110 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-24 00:03:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49.
[2024-11-24 00:03:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:24,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions.
[2024-11-24 00:03:24,607 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 11
[2024-11-24 00:03:24,607 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:24,607 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions.
[2024-11-24 00:03:24,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions.
[2024-11-24 00:03:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-24 00:03:24,608 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:24,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:24,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 00:03:24,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:24,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:24,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash -535021978, now seen corresponding path program 1 times
[2024-11-24 00:03:24,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:24,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085831849]
[2024-11-24 00:03:24,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:24,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:25,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085831849]
[2024-11-24 00:03:25,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085831849] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:03:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129419694]
[2024-11-24 00:03:25,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:25,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:25,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:25,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:03:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:03:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:25,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-24 00:03:25,335 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:03:25,429 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 10 treesize of output 9
[2024-11-24 00:03:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:25,932 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:03:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:26,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129419694] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:03:26,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:03:26,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19
[2024-11-24 00:03:26,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567712491]
[2024-11-24 00:03:26,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:03:26,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 00:03:26,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:26,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 00:03:26,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380
[2024-11-24 00:03:26,257 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 20 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:26,689 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions.
[2024-11-24 00:03:26,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-24 00:03:26,690 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-24 00:03:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:26,690 INFO L225 Difference]: With dead ends: 53
[2024-11-24 00:03:26,691 INFO L226 Difference]: Without dead ends: 53
[2024-11-24 00:03:26,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506
[2024-11-24 00:03:26,692 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:26,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 00:03:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-24 00:03:26,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46.
[2024-11-24 00:03:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions.
[2024-11-24 00:03:26,698 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 11
[2024-11-24 00:03:26,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:26,698 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions.
[2024-11-24 00:03:26,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions.
[2024-11-24 00:03:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-24 00:03:26,699 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:26,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:26,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 00:03:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:26,900 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 540990573, now seen corresponding path program 1 times
[2024-11-24 00:03:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148625056]
[2024-11-24 00:03:26,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:03:27,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:27,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148625056]
[2024-11-24 00:03:27,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148625056] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:27,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:27,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:03:27,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589909231]
[2024-11-24 00:03:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:27,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:03:27,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:27,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:03:27,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,043 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:27,094 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions.
[2024-11-24 00:03:27,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:03:27,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13
[2024-11-24 00:03:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:27,095 INFO L225 Difference]: With dead ends: 45
[2024-11-24 00:03:27,095 INFO L226 Difference]: Without dead ends: 43
[2024-11-24 00:03:27,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,096 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:27,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 52 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:27,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-24 00:03:27,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-11-24 00:03:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions.
[2024-11-24 00:03:27,105 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 13
[2024-11-24 00:03:27,106 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:27,106 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions.
[2024-11-24 00:03:27,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions.
[2024-11-24 00:03:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 00:03:27,107 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:27,107 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:03:27,107 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash -409265471, now seen corresponding path program 1 times
[2024-11-24 00:03:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:27,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594323514]
[2024-11-24 00:03:27,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:27,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594323514]
[2024-11-24 00:03:27,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594323514] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:27,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:27,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:03:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879514745]
[2024-11-24 00:03:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:27,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:03:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:27,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:03:27,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,178 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:27,232 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions.
[2024-11-24 00:03:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:03:27,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14
[2024-11-24 00:03:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:27,234 INFO L225 Difference]: With dead ends: 37
[2024-11-24 00:03:27,234 INFO L226 Difference]: Without dead ends: 37
[2024-11-24 00:03:27,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,235 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:27,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-24 00:03:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-24 00:03:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions.
[2024-11-24 00:03:27,245 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 14
[2024-11-24 00:03:27,245 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:27,245 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions.
[2024-11-24 00:03:27,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions.
[2024-11-24 00:03:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 00:03:27,246 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:27,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:27,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 00:03:27,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:27,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash -409265470, now seen corresponding path program 1 times
[2024-11-24 00:03:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349178461]
[2024-11-24 00:03:27,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:27,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:03:27,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:27,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349178461]
[2024-11-24 00:03:27,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349178461] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:27,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:27,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:03:27,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969662747]
[2024-11-24 00:03:27,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:27,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:03:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:27,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:03:27,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,318 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:27,343 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2024-11-24 00:03:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:03:27,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14
[2024-11-24 00:03:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:27,344 INFO L225 Difference]: With dead ends: 39
[2024-11-24 00:03:27,344 INFO L226 Difference]: Without dead ends: 31
[2024-11-24 00:03:27,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:03:27,345 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:27,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-11-24 00:03:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2024-11-24 00:03:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.36) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions.
[2024-11-24 00:03:27,348 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 14
[2024-11-24 00:03:27,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:27,348 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions.
[2024-11-24 00:03:27,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions.
[2024-11-24 00:03:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 00:03:27,349 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:27,349 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:27,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 00:03:27,349 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:27,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:27,350 INFO L85 PathProgramCache]: Analyzing trace with hash -151100032, now seen corresponding path program 1 times
[2024-11-24 00:03:27,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:27,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674343202]
[2024-11-24 00:03:27,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674343202]
[2024-11-24 00:03:27,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674343202] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:03:27,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408574070]
[2024-11-24 00:03:27,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:27,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:03:27,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:03:27,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:03:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:27,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:03:27,516 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:03:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:27,559 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:03:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:27,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408574070] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:03:27,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:03:27,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9
[2024-11-24 00:03:27,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835707927]
[2024-11-24 00:03:27,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:03:27,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 00:03:27,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:27,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 00:03:27,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:03:27,615 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:27,672 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions.
[2024-11-24 00:03:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 00:03:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 14
[2024-11-24 00:03:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:27,673 INFO L225 Difference]: With dead ends: 40
[2024-11-24 00:03:27,673 INFO L226 Difference]: Without dead ends: 38
[2024-11-24 00:03:27,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:03:27,674 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:27,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 177 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:27,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-11-24 00:03:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35.
[2024-11-24 00:03:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions.
[2024-11-24 00:03:27,677 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 14
[2024-11-24 00:03:27,677 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:27,678 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions.
[2024-11-24 00:03:27,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions.
[2024-11-24 00:03:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-24 00:03:27,678 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:03:27,678 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:27,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-24 00:03:27,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:03:27,880 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2024-11-24 00:03:27,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash -82947673, now seen corresponding path program 2 times
[2024-11-24 00:03:27,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:27,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709590452]
[2024-11-24 00:03:27,881 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:03:27,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:27,895 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:03:27,895 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:03:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:03:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709590452]
[2024-11-24 00:03:28,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709590452] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:28,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:28,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-24 00:03:28,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654860381]
[2024-11-24 00:03:28,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:28,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 00:03:28,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:28,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 00:03:28,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 00:03:28,145 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:28,248 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions.
[2024-11-24 00:03:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 00:03:28,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 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 18
[2024-11-24 00:03:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:28,249 INFO L225 Difference]: With dead ends: 29
[2024-11-24 00:03:28,249 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 00:03:28,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:03:28,250 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:28,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 36 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:03:28,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 00:03:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 00:03:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 00:03:28,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2024-11-24 00:03:28,251 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:28,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 00:03:28,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 00:03:28,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 00:03:28,255 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining)
[2024-11-24 00:03:28,255 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining)
[2024-11-24 00:03:28,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining)
[2024-11-24 00:03:28,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining)
[2024-11-24 00:03:28,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining)
[2024-11-24 00:03:28,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining)
[2024-11-24 00:03:28,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining)
[2024-11-24 00:03:28,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining)
[2024-11-24 00:03:28,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining)
[2024-11-24 00:03:28,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining)
[2024-11-24 00:03:28,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining)
[2024-11-24 00:03:28,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining)
[2024-11-24 00:03:28,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 15 remaining)
[2024-11-24 00:03:28,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 15 remaining)
[2024-11-24 00:03:28,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining)
[2024-11-24 00:03:28,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-24 00:03:28,266 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:03:28,268 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:03:28,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:03:28 BoogieIcfgContainer
[2024-11-24 00:03:28,272 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:03:28,273 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:03:28,273 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:03:28,273 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 00:03:28,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:22" (3/4) ...
[2024-11-24 00:03:28,278 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 00:03:28,291 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-24 00:03:28,291 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-24 00:03:28,291 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-24 00:03:28,291 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 00:03:28,394 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 00:03:28,394 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 00:03:28,395 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:03:28,396 INFO L158 Benchmark]: Toolchain (without parser) took 6838.09ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 87.5MB in the end (delta: 4.1MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB.
[2024-11-24 00:03:28,396 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:03:28,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.24ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 74.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:03:28,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:03:28,397 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:03:28,398 INFO L158 Benchmark]: RCFGBuilder took 403.38ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 57.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:03:28,398 INFO L158 Benchmark]: TraceAbstraction took 5768.40ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 33.0MB in the end (delta: 24.2MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB.
[2024-11-24 00:03:28,398 INFO L158 Benchmark]: Witness Printer took 121.98ms. Allocated memory is still 117.4MB. Free memory was 33.0MB in the beginning and 87.5MB in the end (delta: -54.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB.
[2024-11-24 00:03:28,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.64ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 458.24ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 74.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.62ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.34ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 403.38ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 57.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 5768.40ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 33.0MB in the end (delta: 24.2MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB.
* Witness Printer took 121.98ms. Allocated memory is still 117.4MB. Free memory was 33.0MB in the beginning and 87.5MB in the end (delta: -54.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 521]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 43 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 979 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 670 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 493 IncrementalHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 309 mSDtfsCounter, 493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=4, InterpolantAutomatonStates: 53, 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, 10 MinimizatonAttempts, 23 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 152 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 162 ConstructedInterpolants, 2 QuantifiedInterpolants, 1533 SizeOfPredicates, 7 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 14/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
15 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 00:03:28,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eba6bce-fa54-4103-921e-659b75567614/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE