./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/loop-acceleration/array_1-2.c --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_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/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_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/loop-acceleration/array_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/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_63010b4c-37ad-4085-a0b2-fd5830b7cde9/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 f1476526c0a7c864e0f43f0a8231ffd3d7c324e1f397c219fdbe228643d49425
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:09:58,568 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:09:58,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-24 01:09:58,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:09:58,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:09:58,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:09:58,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:09:58,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:09:58,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:09:58,712 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:09:58,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:09:58,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:09:58,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:09:58,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:09:58,714 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:09:58,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:09:58,715 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:09:58,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:09:58,715 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:09:58,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:09:58,715 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:09:58,716 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:09:58,717 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:09:58,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:09:58,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:09:58,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:09:58,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:09:58,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:09:58,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:09:58,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:09:58,719 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:09:58,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:09:58,719 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_63010b4c-37ad-4085-a0b2-fd5830b7cde9/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 -> f1476526c0a7c864e0f43f0a8231ffd3d7c324e1f397c219fdbe228643d49425
[2024-11-24 01:09:59,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:09:59,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:09:59,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:09:59,086 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:09:59,087 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:09:59,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-acceleration/array_1-2.c
[2024-11-24 01:10:02,179 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/data/2de6d4ce8/03157b4b24894e73802b6f41a35d1bf4/FLAG559c65a65
[2024-11-24 01:10:02,465 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:10:02,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/sv-benchmarks/c/loop-acceleration/array_1-2.c
[2024-11-24 01:10:02,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/data/2de6d4ce8/03157b4b24894e73802b6f41a35d1bf4/FLAG559c65a65
[2024-11-24 01:10:02,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/data/2de6d4ce8/03157b4b24894e73802b6f41a35d1bf4
[2024-11-24 01:10:02,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:10:02,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:10:02,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:10:02,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:10:02,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:10:02,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:10:02" (1/1) ...
[2024-11-24 01:10:02,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497d486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:02, skipping insertion in model container
[2024-11-24 01:10:02,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:10:02" (1/1) ...
[2024-11-24 01:10:02,803 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:10:02,984 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:10:02,995 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:10:03,009 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:10:03,025 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:10:03,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03 WrapperNode
[2024-11-24 01:10:03,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:10:03,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:10:03,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:10:03,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:10:03,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,062 INFO L138 Inliner]: procedures = 13, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31
[2024-11-24 01:10:03,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:10:03,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:10:03,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:10:03,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:10:03,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,089 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1].
[2024-11-24 01:10:03,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:10:03,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:10:03,109 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:10:03,109 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:10:03,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (1/1) ...
[2024-11-24 01:10:03,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:10:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:03,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:10:03,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:10:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 01:10:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:10:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:10:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 01:10:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 01:10:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 01:10:03,278 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:10:03,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:10:03,416 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-11-24 01:10:03,416 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:10:03,432 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:10:03,433 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 01:10:03,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:03 BoogieIcfgContainer
[2024-11-24 01:10:03,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:10:03,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:10:03,437 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:10:03,442 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:10:03,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:10:02" (1/3) ...
[2024-11-24 01:10:03,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166b45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:10:03, skipping insertion in model container
[2024-11-24 01:10:03,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:03" (2/3) ...
[2024-11-24 01:10:03,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166b45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:10:03, skipping insertion in model container
[2024-11-24 01:10:03,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:03" (3/3) ...
[2024-11-24 01:10:03,445 INFO L128 eAbstractionObserver]: Analyzing ICFG array_1-2.c
[2024-11-24 01:10:03,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:10:03,465 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array_1-2.c that has 1 procedures, 21 locations, 1 initial locations, 1 loop locations, and 6 error locations.
[2024-11-24 01:10:03,513 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:10:03,528 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;@6f11f09b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:10:03,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2024-11-24 01:10:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 20 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 01:10:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:10:03,539 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:03,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:10:03,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:03,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 925990, now seen corresponding path program 1 times
[2024-11-24 01:10:03,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:03,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124453137]
[2024-11-24 01:10:03,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:03,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:03,749 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 01:10:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:03,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124453137]
[2024-11-24 01:10:03,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124453137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:03,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:03,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:10:03,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019941873]
[2024-11-24 01:10:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:03,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 01:10:03,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:03,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 01:10:03,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:10:03,803 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 20 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 01:10:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:03,820 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions.
[2024-11-24 01:10:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 01:10:03,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4
[2024-11-24 01:10:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:03,831 INFO L225 Difference]: With dead ends: 20
[2024-11-24 01:10:03,831 INFO L226 Difference]: Without dead ends: 18
[2024-11-24 01:10:03,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:10:03,840 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:03,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2024-11-24 01:10:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2024-11-24 01:10:03,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 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 01:10:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions.
[2024-11-24 01:10:03,886 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 4
[2024-11-24 01:10:03,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:03,886 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions.
[2024-11-24 01:10:03,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 01:10:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions.
[2024-11-24 01:10:03,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:10:03,888 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:03,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:10:03,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:10:03,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:03,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash 925704, now seen corresponding path program 1 times
[2024-11-24 01:10:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:03,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811623664]
[2024-11-24 01:10:03,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:04,043 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 01:10:04,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811623664]
[2024-11-24 01:10:04,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811623664] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:04,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:04,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:10:04,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920916656]
[2024-11-24 01:10:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:04,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:10:04,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:04,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:10:04,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:10:04,046 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 01:10:04,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:04,081 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions.
[2024-11-24 01:10:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:10:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-11-24 01:10:04,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:04,083 INFO L225 Difference]: With dead ends: 16
[2024-11-24 01:10:04,083 INFO L226 Difference]: Without dead ends: 16
[2024-11-24 01:10:04,083 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 01:10:04,085 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:04,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:04,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-24 01:10:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-11-24 01:10:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 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 01:10:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2024-11-24 01:10:04,092 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4
[2024-11-24 01:10:04,093 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:04,093 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2024-11-24 01:10:04,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 01:10:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2024-11-24 01:10:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:10:04,094 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:04,094 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:10:04,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:10:04,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:04,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash 925705, now seen corresponding path program 1 times
[2024-11-24 01:10:04,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:04,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788603946]
[2024-11-24 01:10:04,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:04,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:04,272 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 01:10:04,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:04,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788603946]
[2024-11-24 01:10:04,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788603946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:04,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:04,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:10:04,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590802167]
[2024-11-24 01:10:04,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:04,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:10:04,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:04,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:10:04,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:10:04,274 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 01:10:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:04,323 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions.
[2024-11-24 01:10:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:10:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-11-24 01:10:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:04,324 INFO L225 Difference]: With dead ends: 19
[2024-11-24 01:10:04,324 INFO L226 Difference]: Without dead ends: 19
[2024-11-24 01:10:04,325 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 01:10:04,326 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:04,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 19 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-11-24 01:10:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18.
[2024-11-24 01:10:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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 01:10:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions.
[2024-11-24 01:10:04,330 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 4
[2024-11-24 01:10:04,330 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:04,330 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions.
[2024-11-24 01:10:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 01:10:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions.
[2024-11-24 01:10:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 01:10:04,330 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:04,331 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-11-24 01:10:04,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:10:04,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:04,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1807828974, now seen corresponding path program 1 times
[2024-11-24 01:10:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50749544]
[2024-11-24 01:10:04,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:04,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50749544]
[2024-11-24 01:10:04,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50749544] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881286190]
[2024-11-24 01:10:04,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:04,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:04,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:04,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:04,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:10:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:04,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:04,648 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:04,736 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 8 treesize of output 1
[2024-11-24 01:10:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:04,844 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:04,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881286190] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:10:04,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:10:04,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-11-24 01:10:04,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316982007]
[2024-11-24 01:10:04,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:10:04,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-24 01:10:04,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:04,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-24 01:10:04,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-24 01:10:04,981 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 01:10:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:05,070 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions.
[2024-11-24 01:10:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 01:10:05,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 01:10:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:05,071 INFO L225 Difference]: With dead ends: 27
[2024-11-24 01:10:05,072 INFO L226 Difference]: Without dead ends: 27
[2024-11-24 01:10:05,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:10:05,073 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:05,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:10:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-24 01:10:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-24 01:10:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 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 01:10:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions.
[2024-11-24 01:10:05,078 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 7
[2024-11-24 01:10:05,078 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:05,078 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions.
[2024-11-24 01:10:05,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 01:10:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions.
[2024-11-24 01:10:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-24 01:10:05,079 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:05,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1]
[2024-11-24 01:10:05,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 01:10:05,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:05,283 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:05,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1856972242, now seen corresponding path program 1 times
[2024-11-24 01:10:05,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:05,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266031507]
[2024-11-24 01:10:05,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:05,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-24 01:10:05,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:05,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266031507]
[2024-11-24 01:10:05,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266031507] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:05,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:10:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209022027]
[2024-11-24 01:10:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:05,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:10:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:05,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:10:05,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:10:05,431 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. 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 01:10:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:05,456 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions.
[2024-11-24 01:10:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:10:05,457 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 10
[2024-11-24 01:10:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:05,457 INFO L225 Difference]: With dead ends: 26
[2024-11-24 01:10:05,457 INFO L226 Difference]: Without dead ends: 26
[2024-11-24 01:10:05,457 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 01:10:05,458 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:05,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-24 01:10:05,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-11-24 01:10:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 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 01:10:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions.
[2024-11-24 01:10:05,466 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10
[2024-11-24 01:10:05,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:05,466 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions.
[2024-11-24 01:10:05,466 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 01:10:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions.
[2024-11-24 01:10:05,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 01:10:05,467 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:05,467 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:05,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:10:05,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:05,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1808426169, now seen corresponding path program 1 times
[2024-11-24 01:10:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019981446]
[2024-11-24 01:10:05,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:05,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019981446]
[2024-11-24 01:10:05,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019981446] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:05,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092430490]
[2024-11-24 01:10:05,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:05,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:05,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:05,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:05,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 01:10:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:05,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:05,672 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:05,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:05,705 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:05,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092430490] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:10:05,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:10:05,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-24 01:10:05,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204936249]
[2024-11-24 01:10:05,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:10:05,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 01:10:05,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:05,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 01:10:05,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2024-11-24 01:10:05,763 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 01:10:05,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:05,819 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions.
[2024-11-24 01:10:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:10:05,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 01:10:05,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:05,821 INFO L225 Difference]: With dead ends: 31
[2024-11-24 01:10:05,821 INFO L226 Difference]: Without dead ends: 31
[2024-11-24 01:10:05,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2024-11-24 01:10:05,822 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:05,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 47 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:05,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-11-24 01:10:05,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2024-11-24 01:10:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 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 01:10:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions.
[2024-11-24 01:10:05,829 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 14
[2024-11-24 01:10:05,829 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:05,829 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions.
[2024-11-24 01:10:05,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 01:10:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions.
[2024-11-24 01:10:05,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-24 01:10:05,830 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:05,830 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1]
[2024-11-24 01:10:05,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-24 01:10:06,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:06,031 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:06,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1398320073, now seen corresponding path program 2 times
[2024-11-24 01:10:06,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:06,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174099508]
[2024-11-24 01:10:06,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:10:06,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:06,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 01:10:06,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:06,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174099508]
[2024-11-24 01:10:06,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174099508] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:06,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771119631]
[2024-11-24 01:10:06,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:10:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:06,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:06,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:06,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 01:10:06,462 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 01:10:06,462 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:06,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:06,465 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:06,484 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 8 treesize of output 1
[2024-11-24 01:10:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:06,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:10:06,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771119631] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:06,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:10:06,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13
[2024-11-24 01:10:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716885517]
[2024-11-24 01:10:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:06,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:10:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:06,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:10:06,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2024-11-24 01:10:06,740 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 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 01:10:06,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:06,805 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions.
[2024-11-24 01:10:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:10:06,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 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 16
[2024-11-24 01:10:06,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:06,806 INFO L225 Difference]: With dead ends: 30
[2024-11-24 01:10:06,807 INFO L226 Difference]: Without dead ends: 30
[2024-11-24 01:10:06,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2024-11-24 01:10:06,808 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:06,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:10:06,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-24 01:10:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-11-24 01:10:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 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 01:10:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions.
[2024-11-24 01:10:06,812 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 16
[2024-11-24 01:10:06,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:06,813 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions.
[2024-11-24 01:10:06,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 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 01:10:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions.
[2024-11-24 01:10:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-24 01:10:06,814 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:06,814 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:06,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-24 01:10:07,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:07,018 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:07,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:07,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2094448519, now seen corresponding path program 2 times
[2024-11-24 01:10:07,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:07,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227796504]
[2024-11-24 01:10:07,019 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:10:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:07,035 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 01:10:07,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked.
[2024-11-24 01:10:07,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227796504]
[2024-11-24 01:10:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227796504] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:07,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:07,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:10:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192838543]
[2024-11-24 01:10:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:07,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:10:07,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:07,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:10:07,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:10:07,110 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 01:10:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:07,125 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions.
[2024-11-24 01:10:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:10:07,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 26
[2024-11-24 01:10:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:07,127 INFO L225 Difference]: With dead ends: 29
[2024-11-24 01:10:07,127 INFO L226 Difference]: Without dead ends: 27
[2024-11-24 01:10:07,127 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 01:10:07,128 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:07,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 18 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-24 01:10:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-24 01:10:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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 01:10:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2024-11-24 01:10:07,131 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26
[2024-11-24 01:10:07,131 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:07,131 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2024-11-24 01:10:07,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 01:10:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2024-11-24 01:10:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-24 01:10:07,132 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:07,132 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:07,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 01:10:07,133 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:07,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2094456496, now seen corresponding path program 1 times
[2024-11-24 01:10:07,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:07,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854058553]
[2024-11-24 01:10:07,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:07,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:07,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854058553]
[2024-11-24 01:10:07,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854058553] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:07,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404153445]
[2024-11-24 01:10:07,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:07,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:07,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:07,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:07,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 01:10:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:07,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:07,436 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:07,489 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404153445] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:10:07,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:10:07,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17
[2024-11-24 01:10:07,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140641964]
[2024-11-24 01:10:07,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:10:07,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 01:10:07,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:07,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 01:10:07,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:10:07,683 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 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 01:10:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:07,787 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions.
[2024-11-24 01:10:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-24 01:10:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 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) Word has length 26
[2024-11-24 01:10:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:07,788 INFO L225 Difference]: With dead ends: 51
[2024-11-24 01:10:07,788 INFO L226 Difference]: Without dead ends: 51
[2024-11-24 01:10:07,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:10:07,789 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:07,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 38 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:10:07,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-24 01:10:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2024-11-24 01:10:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 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 01:10:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions.
[2024-11-24 01:10:07,793 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26
[2024-11-24 01:10:07,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:07,793 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions.
[2024-11-24 01:10:07,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 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 01:10:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions.
[2024-11-24 01:10:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-24 01:10:07,795 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:07,795 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:07,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-24 01:10:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:07,995 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:07,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1238628560, now seen corresponding path program 2 times
[2024-11-24 01:10:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291302984]
[2024-11-24 01:10:07,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:10:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:08,036 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 01:10:08,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291302984]
[2024-11-24 01:10:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291302984] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399792181]
[2024-11-24 01:10:08,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:10:08,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:08,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:08,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:08,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 01:10:08,603 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 01:10:08,603 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:08,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:08,611 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:08,715 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:09,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399792181] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:10:09,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:10:09,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33
[2024-11-24 01:10:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488421008]
[2024-11-24 01:10:09,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:10:09,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-11-24 01:10:09,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:09,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-11-24 01:10:09,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056
[2024-11-24 01:10:09,308 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 33 states have internal predecessors, (98), 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 01:10:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:09,500 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions.
[2024-11-24 01:10:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-11-24 01:10:09,500 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 33 states have internal predecessors, (98), 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 50
[2024-11-24 01:10:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:09,502 INFO L225 Difference]: With dead ends: 99
[2024-11-24 01:10:09,502 INFO L226 Difference]: Without dead ends: 99
[2024-11-24 01:10:09,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056
[2024-11-24 01:10:09,503 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:09,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 44 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:10:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2024-11-24 01:10:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99.
[2024-11-24 01:10:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.010204081632653) internal successors, (99), 98 states have internal predecessors, (99), 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 01:10:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions.
[2024-11-24 01:10:09,518 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 50
[2024-11-24 01:10:09,518 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:09,518 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions.
[2024-11-24 01:10:09,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 33 states have internal predecessors, (98), 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 01:10:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions.
[2024-11-24 01:10:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-24 01:10:09,524 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:09,524 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:09,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-24 01:10:09,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:09,725 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] ===
[2024-11-24 01:10:09,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:09,726 INFO L85 PathProgramCache]: Analyzing trace with hash 991832016, now seen corresponding path program 3 times
[2024-11-24 01:10:09,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:10:09,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330984069]
[2024-11-24 01:10:09,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 01:10:09,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:10:09,768 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-24 01:10:09,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:10:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked.
[2024-11-24 01:10:09,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:10:09,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330984069]
[2024-11-24 01:10:09,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330984069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:10:09,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:10:09,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-24 01:10:09,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144543376]
[2024-11-24 01:10:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:10:09,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:10:09,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:10:09,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:10:09,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:10:09,985 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 8 states, 8 states have (on average 1.75) 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 01:10:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:10,020 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions.
[2024-11-24 01:10:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:10:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) 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 98
[2024-11-24 01:10:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:10,021 INFO L225 Difference]: With dead ends: 96
[2024-11-24 01:10:10,021 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 01:10:10,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:10:10,022 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:10,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:10:10,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 01:10:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 01:10:10,023 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 01:10:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 01:10:10,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98
[2024-11-24 01:10:10,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:10,023 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 01:10:10,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) 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 01:10:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 01:10:10,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 01:10:10,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining)
[2024-11-24 01:10:10,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining)
[2024-11-24 01:10:10,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining)
[2024-11-24 01:10:10,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining)
[2024-11-24 01:10:10,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining)
[2024-11-24 01:10:10,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining)
[2024-11-24 01:10:10,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-24 01:10:10,033 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1]
[2024-11-24 01:10:10,036 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:10:10,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:10:10 BoogieIcfgContainer
[2024-11-24 01:10:10,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:10:10,042 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:10:10,042 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:10:10,042 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:10:10,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:03" (3/4) ...
[2024-11-24 01:10:10,046 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 01:10:10,055 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2024-11-24 01:10:10,055 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-24 01:10:10,055 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-24 01:10:10,055 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-24 01:10:10,155 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:10:10,155 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:10:10,155 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:10:10,157 INFO L158 Benchmark]: Toolchain (without parser) took 7378.51ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 88.6MB in the end (delta: 4.3MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB.
[2024-11-24 01:10:10,158 INFO L158 Benchmark]: CDTParser took 1.56ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:10:10,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.42ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.2MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:10:10,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.96ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:10:10,159 INFO L158 Benchmark]: Boogie Preprocessor took 44.03ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:10:10,160 INFO L158 Benchmark]: RCFGBuilder took 326.01ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 69.6MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:10:10,160 INFO L158 Benchmark]: TraceAbstraction took 6604.94ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 33.6MB in the end (delta: 35.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB.
[2024-11-24 01:10:10,161 INFO L158 Benchmark]: Witness Printer took 113.35ms. Allocated memory is still 117.4MB. Free memory was 33.6MB in the beginning and 88.6MB in the end (delta: -55.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:10:10,163 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.56ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 247.42ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.2MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.96ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 44.03ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 326.01ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 69.6MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 6604.94ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 33.6MB in the end (delta: 35.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB.
* Witness Printer took 113.35ms. Allocated memory is still 117.4MB. Free memory was 33.6MB in the beginning and 88.6MB in the end (delta: -55.0MB). Peak memory consumption was 8.4MB. 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: 3]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- PositiveResult [Line: 12]: 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, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 30, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 323 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 117 mSDtfsCounter, 323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=10, InterpolantAutomatonStates: 93, 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, 11 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 372 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 1646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1426/2478 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
6 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 01:10:10,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63010b4c-37ad-4085-a0b2-fd5830b7cde9/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE