./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/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_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:10:17,893 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:10:17,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:10:17,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:10:17,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:10:18,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:10:18,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:10:18,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:10:18,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:10:18,033 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:10:18,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:10:18,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:10:18,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:10:18,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:10:18,034 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:10:18,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:10:18,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:10:18,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:10:18,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:10:18,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:10:18,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:10:18,037 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_c31dd116-8a2d-4f4c-89e5-b02ced638192/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 ! call(reach_error())) )
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 -> c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85
[2024-11-24 00:10:18,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:10:18,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:10:18,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:10:18,320 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:10:18,321 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:10:18,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c
[2024-11-24 00:10:21,367 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/data/365f384ef/29cece5833494fb18cb2af5cbbfc29ff/FLAG902a7b712
[2024-11-24 00:10:21,710 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:10:21,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c
[2024-11-24 00:10:21,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/data/365f384ef/29cece5833494fb18cb2af5cbbfc29ff/FLAG902a7b712
[2024-11-24 00:10:21,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/data/365f384ef/29cece5833494fb18cb2af5cbbfc29ff
[2024-11-24 00:10:21,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:10:21,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:10:21,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:10:21,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:10:21,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:10:21,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:21" (1/1) ...
[2024-11-24 00:10:21,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb75538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:21, skipping insertion in model container
[2024-11-24 00:10:21,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:21" (1/1) ...
[2024-11-24 00:10:21,994 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:10:22,176 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467]
[2024-11-24 00:10:22,180 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:10:22,190 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:10:22,204 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467]
[2024-11-24 00:10:22,204 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:10:22,220 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:10:22,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22 WrapperNode
[2024-11-24 00:10:22,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:10:22,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:10:22,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:10:22,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:10:22,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,256 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18
[2024-11-24 00:10:22,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:10:22,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:10:22,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:10:22,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:10:22,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,273 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-24 00:10:22,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,276 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:10:22,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:10:22,281 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:10:22,281 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:10:22,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (1/1) ...
[2024-11-24 00:10:22,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:10:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:22,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:10:22,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:10:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:10:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:10:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:10:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:10:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure id
[2024-11-24 00:10:22,341 INFO L138 BoogieDeclarations]: Found implementation of procedure id
[2024-11-24 00:10:22,397 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:10:22,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:10:22,521 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-24 00:10:22,521 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:10:22,530 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:10:22,530 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 00:10:22,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:22 BoogieIcfgContainer
[2024-11-24 00:10:22,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:10:22,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:10:22,533 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:10:22,540 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:10:22,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:10:21" (1/3) ...
[2024-11-24 00:10:22,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602361de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:22, skipping insertion in model container
[2024-11-24 00:10:22,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:22" (2/3) ...
[2024-11-24 00:10:22,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602361de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:22, skipping insertion in model container
[2024-11-24 00:10:22,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:22" (3/3) ...
[2024-11-24 00:10:22,543 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i20_o20-1.c
[2024-11-24 00:10:22,560 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:10:22,561 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i20_o20-1.c that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-24 00:10:22,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:10:22,637 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=LoopHeads, 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;@eaba176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:10:22,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:10:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 00:10:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-24 00:10:22,652 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:22,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:22,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:22,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times
[2024-11-24 00:10:22,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:22,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666451190]
[2024-11-24 00:10:22,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:10:22,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:10:22,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:22,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666451190]
[2024-11-24 00:10:22,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666451190] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:10:22,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:10:22,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:10:22,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346358423]
[2024-11-24 00:10:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:10:22,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:10:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:22,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:10:22,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:10:22,968 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:10:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:23,039 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-11-24 00:10:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:10:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10
[2024-11-24 00:10:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:23,049 INFO L225 Difference]: With dead ends: 25
[2024-11-24 00:10:23,049 INFO L226 Difference]: Without dead ends: 15
[2024-11-24 00:10:23,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:10:23,059 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:23,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:10:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-24 00:10:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-24 00:10:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 00:10:23,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-11-24 00:10:23,105 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10
[2024-11-24 00:10:23,105 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:23,105 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-11-24 00:10:23,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 00:10:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-11-24 00:10:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-24 00:10:23,107 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:23,108 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:23,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:10:23,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:23,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash 679465686, now seen corresponding path program 1 times
[2024-11-24 00:10:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:23,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963963497]
[2024-11-24 00:10:23,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:10:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:10:23,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:23,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963963497]
[2024-11-24 00:10:23,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963963497] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:23,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230948101]
[2024-11-24 00:10:23,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:10:23,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:23,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:23,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:23,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:10:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:23,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:23,351 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:10:23,444 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:10:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230948101] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:23,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 9
[2024-11-24 00:10:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882271669]
[2024-11-24 00:10:23,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:23,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 00:10:23,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:23,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 00:10:23,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:10:23,785 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 00:10:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:23,867 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions.
[2024-11-24 00:10:23,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 00:10:23,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 16
[2024-11-24 00:10:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:23,872 INFO L225 Difference]: With dead ends: 22
[2024-11-24 00:10:23,872 INFO L226 Difference]: Without dead ends: 18
[2024-11-24 00:10:23,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:10:23,873 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:23,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 32 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2024-11-24 00:10:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2024-11-24 00:10:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 00:10:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2024-11-24 00:10:23,882 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16
[2024-11-24 00:10:23,883 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:23,883 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2024-11-24 00:10:23,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 00:10:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2024-11-24 00:10:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-24 00:10:23,885 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:23,885 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:23,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:24,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:24,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:24,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash -41010676, now seen corresponding path program 2 times
[2024-11-24 00:10:24,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:24,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873859631]
[2024-11-24 00:10:24,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:10:24,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:24,108 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:10:24,108 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-24 00:10:24,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:24,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873859631]
[2024-11-24 00:10:24,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873859631] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:24,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500576999]
[2024-11-24 00:10:24,372 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:10:24,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:24,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:24,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:24,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:10:24,422 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:10:24,422 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:24,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:24,425 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-24 00:10:24,486 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-24 00:10:24,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500576999] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:24,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:24,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 13
[2024-11-24 00:10:24,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047082389]
[2024-11-24 00:10:24,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:24,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 00:10:24,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:24,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 00:10:24,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2024-11-24 00:10:24,930 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 13 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-24 00:10:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:25,031 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions.
[2024-11-24 00:10:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 00:10:25,032 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 13 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 22
[2024-11-24 00:10:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:25,033 INFO L225 Difference]: With dead ends: 25
[2024-11-24 00:10:25,033 INFO L226 Difference]: Without dead ends: 21
[2024-11-24 00:10:25,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2024-11-24 00:10:25,034 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:25,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 47 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:10:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-11-24 00:10:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-11-24 00:10:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-24 00:10:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-11-24 00:10:25,039 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 22
[2024-11-24 00:10:25,040 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:25,040 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-11-24 00:10:25,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 13 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-24 00:10:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-11-24 00:10:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-24 00:10:25,041 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:25,041 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:25,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:25,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:25,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:25,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:25,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1769866774, now seen corresponding path program 3 times
[2024-11-24 00:10:25,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:25,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063316004]
[2024-11-24 00:10:25,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:10:25,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:25,264 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-24 00:10:25,264 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-24 00:10:25,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:25,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063316004]
[2024-11-24 00:10:25,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063316004] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:25,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411466901]
[2024-11-24 00:10:25,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:10:25,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:25,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:25,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:25,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:10:25,585 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-24 00:10:25,585 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:25,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:25,588 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-24 00:10:25,671 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-24 00:10:26,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411466901] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:26,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:26,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 11] total 17
[2024-11-24 00:10:26,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62120598]
[2024-11-24 00:10:26,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:26,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 00:10:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:26,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 00:10:26,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2024-11-24 00:10:26,341 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 17 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10)
[2024-11-24 00:10:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:26,487 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions.
[2024-11-24 00:10:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 00:10:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 17 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 28
[2024-11-24 00:10:26,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:26,490 INFO L225 Difference]: With dead ends: 28
[2024-11-24 00:10:26,490 INFO L226 Difference]: Without dead ends: 24
[2024-11-24 00:10:26,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420
[2024-11-24 00:10:26,491 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:26,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 68 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-11-24 00:10:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-11-24 00:10:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6)
[2024-11-24 00:10:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions.
[2024-11-24 00:10:26,501 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 28
[2024-11-24 00:10:26,501 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:26,502 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions.
[2024-11-24 00:10:26,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.066666666666667) internal successors, (31), 17 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10)
[2024-11-24 00:10:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions.
[2024-11-24 00:10:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-24 00:10:26,503 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:26,503 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:26,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:26,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:26,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:26,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash 371264716, now seen corresponding path program 4 times
[2024-11-24 00:10:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:26,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877837918]
[2024-11-24 00:10:26,709 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:10:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:26,721 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:10:26,721 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-24 00:10:26,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877837918]
[2024-11-24 00:10:26,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877837918] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667663691]
[2024-11-24 00:10:26,908 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:10:26,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:26,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:26,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 00:10:26,975 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:10:26,976 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:26,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:26,979 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-24 00:10:27,085 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-24 00:10:28,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667663691] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:28,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:28,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 13] total 20
[2024-11-24 00:10:28,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722776978]
[2024-11-24 00:10:28,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:28,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 00:10:28,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:28,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 00:10:28,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380
[2024-11-24 00:10:28,026 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 20 states, 17 states have (on average 2.176470588235294) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (10), 1 states have call predecessors, (10), 7 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13)
[2024-11-24 00:10:28,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:28,184 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions.
[2024-11-24 00:10:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 00:10:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.176470588235294) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (10), 1 states have call predecessors, (10), 7 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) Word has length 34
[2024-11-24 00:10:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:28,186 INFO L225 Difference]: With dead ends: 43
[2024-11-24 00:10:28,187 INFO L226 Difference]: Without dead ends: 39
[2024-11-24 00:10:28,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702
[2024-11-24 00:10:28,188 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:28,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2024-11-24 00:10:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36.
[2024-11-24 00:10:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 8 states have return successors, (9), 8 states have call predecessors, (9), 3 states have call successors, (9)
[2024-11-24 00:10:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions.
[2024-11-24 00:10:28,205 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 34
[2024-11-24 00:10:28,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:28,205 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions.
[2024-11-24 00:10:28,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.176470588235294) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (10), 1 states have call predecessors, (10), 7 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13)
[2024-11-24 00:10:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions.
[2024-11-24 00:10:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-24 00:10:28,206 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:28,206 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:28,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:28,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:28,407 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:28,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:28,407 INFO L85 PathProgramCache]: Analyzing trace with hash -626238314, now seen corresponding path program 5 times
[2024-11-24 00:10:28,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:28,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63983525]
[2024-11-24 00:10:28,408 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:10:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:28,445 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s)
[2024-11-24 00:10:28,445 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 86 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2024-11-24 00:10:28,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:28,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63983525]
[2024-11-24 00:10:28,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63983525] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:28,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929314234]
[2024-11-24 00:10:28,779 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:10:28,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:28,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:28,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:28,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 00:10:28,864 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s)
[2024-11-24 00:10:28,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:28,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:28,868 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2024-11-24 00:10:28,966 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-24 00:10:31,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929314234] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:31,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:31,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 19] total 22
[2024-11-24 00:10:31,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574316308]
[2024-11-24 00:10:31,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:31,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-24 00:10:31,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:31,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-24 00:10:31,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462
[2024-11-24 00:10:31,920 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 22 states, 20 states have (on average 2.1) internal successors, (42), 22 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 8 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17)
[2024-11-24 00:10:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:32,071 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions.
[2024-11-24 00:10:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 00:10:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 22 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 8 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) Word has length 52
[2024-11-24 00:10:32,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:32,073 INFO L225 Difference]: With dead ends: 49
[2024-11-24 00:10:32,073 INFO L226 Difference]: Without dead ends: 42
[2024-11-24 00:10:32,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 93 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812
[2024-11-24 00:10:32,075 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 89 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:32,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 85 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-11-24 00:10:32,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39.
[2024-11-24 00:10:32,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 27 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 9 states have return successors, (10), 9 states have call predecessors, (10), 3 states have call successors, (10)
[2024-11-24 00:10:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions.
[2024-11-24 00:10:32,083 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 52
[2024-11-24 00:10:32,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:32,083 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions.
[2024-11-24 00:10:32,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.1) internal successors, (42), 22 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 8 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17)
[2024-11-24 00:10:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions.
[2024-11-24 00:10:32,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-24 00:10:32,085 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:32,085 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:32,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-24 00:10:32,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-24 00:10:32,287 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:32,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -960511412, now seen corresponding path program 6 times
[2024-11-24 00:10:32,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:32,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898158768]
[2024-11-24 00:10:32,288 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:10:32,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:32,314 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s)
[2024-11-24 00:10:32,314 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 10 proven. 132 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked.
[2024-11-24 00:10:32,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:32,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898158768]
[2024-11-24 00:10:32,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898158768] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:32,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352883838]
[2024-11-24 00:10:32,725 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:10:32,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:32,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:32,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:32,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 00:10:32,827 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s)
[2024-11-24 00:10:32,827 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:32,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:32,831 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-24 00:10:32,930 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2024-11-24 00:10:36,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352883838] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:36,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:36,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 21] total 28
[2024-11-24 00:10:36,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862261147]
[2024-11-24 00:10:36,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:36,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-24 00:10:36,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:36,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-24 00:10:36,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756
[2024-11-24 00:10:36,579 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 28 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 28 states have internal predecessors, (53), 13 states have call successors, (13), 1 states have call predecessors, (13), 11 states have return successors, (22), 10 states have call predecessors, (22), 13 states have call successors, (22)
[2024-11-24 00:10:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:36,770 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions.
[2024-11-24 00:10:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 00:10:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 28 states have internal predecessors, (53), 13 states have call successors, (13), 1 states have call predecessors, (13), 11 states have return successors, (22), 10 states have call predecessors, (22), 13 states have call successors, (22) Word has length 58
[2024-11-24 00:10:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:36,772 INFO L225 Difference]: With dead ends: 52
[2024-11-24 00:10:36,772 INFO L226 Difference]: Without dead ends: 45
[2024-11-24 00:10:36,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 100 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=394, Invalid=866, Unknown=0, NotChecked=0, Total=1260
[2024-11-24 00:10:36,773 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 106 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:36,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 93 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-24 00:10:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42.
[2024-11-24 00:10:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 10 states have call predecessors, (11), 3 states have call successors, (11)
[2024-11-24 00:10:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions.
[2024-11-24 00:10:36,788 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 58
[2024-11-24 00:10:36,789 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:36,789 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions.
[2024-11-24 00:10:36,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 28 states have internal predecessors, (53), 13 states have call successors, (13), 1 states have call predecessors, (13), 11 states have return successors, (22), 10 states have call predecessors, (22), 13 states have call successors, (22)
[2024-11-24 00:10:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions.
[2024-11-24 00:10:36,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-24 00:10:36,793 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:36,793 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:36,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:36,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-11-24 00:10:36,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:36,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash -366706730, now seen corresponding path program 7 times
[2024-11-24 00:10:36,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:36,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202003515]
[2024-11-24 00:10:36,994 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:10:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-11-24 00:10:37,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202003515]
[2024-11-24 00:10:37,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202003515] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:37,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424529055]
[2024-11-24 00:10:37,334 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:10:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:37,336 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:37,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 00:10:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:10:37,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:37,477 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-11-24 00:10:37,564 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-11-24 00:10:42,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424529055] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:42,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:42,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 23] total 25
[2024-11-24 00:10:42,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981635749]
[2024-11-24 00:10:42,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:42,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-24 00:10:42,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:42,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-24 00:10:42,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600
[2024-11-24 00:10:42,087 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 25 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 25 states have internal predecessors, (48), 12 states have call successors, (12), 1 states have call predecessors, (12), 10 states have return successors, (20), 10 states have call predecessors, (20), 12 states have call successors, (20)
[2024-11-24 00:10:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:42,284 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions.
[2024-11-24 00:10:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-24 00:10:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 25 states have internal predecessors, (48), 12 states have call successors, (12), 1 states have call predecessors, (12), 10 states have return successors, (20), 10 states have call predecessors, (20), 12 states have call successors, (20) Word has length 64
[2024-11-24 00:10:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:42,286 INFO L225 Difference]: With dead ends: 55
[2024-11-24 00:10:42,286 INFO L226 Difference]: Without dead ends: 48
[2024-11-24 00:10:42,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 116 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=356, Invalid=766, Unknown=0, NotChecked=0, Total=1122
[2024-11-24 00:10:42,288 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 99 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:42,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 104 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:42,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-24 00:10:42,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45.
[2024-11-24 00:10:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 31 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 11 states have call predecessors, (12), 3 states have call successors, (12)
[2024-11-24 00:10:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions.
[2024-11-24 00:10:42,295 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 64
[2024-11-24 00:10:42,295 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:42,295 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions.
[2024-11-24 00:10:42,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 25 states have internal predecessors, (48), 12 states have call successors, (12), 1 states have call predecessors, (12), 10 states have return successors, (20), 10 states have call predecessors, (20), 12 states have call successors, (20)
[2024-11-24 00:10:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions.
[2024-11-24 00:10:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-24 00:10:42,297 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:42,297 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:42,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-24 00:10:42,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-24 00:10:42,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:42,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:42,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1719425780, now seen corresponding path program 8 times
[2024-11-24 00:10:42,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:42,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182370019]
[2024-11-24 00:10:42,502 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:10:42,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:42,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:10:42,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2024-11-24 00:10:42,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182370019]
[2024-11-24 00:10:42,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182370019] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:42,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86798438]
[2024-11-24 00:10:42,852 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:10:42,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:42,854 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:42,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-24 00:10:43,045 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:10:43,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:43,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:43,052 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2024-11-24 00:10:43,174 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2024-11-24 00:10:49,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86798438] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:49,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:49,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 25] total 29
[2024-11-24 00:10:49,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806015141]
[2024-11-24 00:10:49,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:49,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2024-11-24 00:10:49,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:49,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2024-11-24 00:10:49,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=590, Unknown=0, NotChecked=0, Total=812
[2024-11-24 00:10:49,151 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 29 states, 27 states have (on average 2.037037037037037) internal successors, (55), 29 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 12 states have return successors, (23), 11 states have call predecessors, (23), 13 states have call successors, (23)
[2024-11-24 00:10:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:49,390 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions.
[2024-11-24 00:10:49,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-24 00:10:49,390 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.037037037037037) internal successors, (55), 29 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 12 states have return successors, (23), 11 states have call predecessors, (23), 13 states have call successors, (23) Word has length 70
[2024-11-24 00:10:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:49,391 INFO L225 Difference]: With dead ends: 58
[2024-11-24 00:10:49,391 INFO L226 Difference]: Without dead ends: 51
[2024-11-24 00:10:49,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 125 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=497, Invalid=1063, Unknown=0, NotChecked=0, Total=1560
[2024-11-24 00:10:49,393 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 99 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:49,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 100 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-24 00:10:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48.
[2024-11-24 00:10:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 12 states have return successors, (13), 12 states have call predecessors, (13), 3 states have call successors, (13)
[2024-11-24 00:10:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions.
[2024-11-24 00:10:49,400 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 70
[2024-11-24 00:10:49,400 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:49,401 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions.
[2024-11-24 00:10:49,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.037037037037037) internal successors, (55), 29 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 12 states have return successors, (23), 11 states have call predecessors, (23), 13 states have call successors, (23)
[2024-11-24 00:10:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions.
[2024-11-24 00:10:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-24 00:10:49,402 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:49,402 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:49,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-24 00:10:49,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:49,606 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:49,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:49,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1354232598, now seen corresponding path program 9 times
[2024-11-24 00:10:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:49,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701708999]
[2024-11-24 00:10:49,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:10:49,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:49,633 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s)
[2024-11-24 00:10:49,633 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 30 proven. 230 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked.
[2024-11-24 00:10:50,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701708999]
[2024-11-24 00:10:50,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701708999] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780141279]
[2024-11-24 00:10:50,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:10:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:50,070 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:50,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-24 00:10:50,356 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s)
[2024-11-24 00:10:50,356 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:50,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:50,360 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2024-11-24 00:10:50,467 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:10:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-11-24 00:10:58,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780141279] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:10:58,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:10:58,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 27] total 34
[2024-11-24 00:10:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659816040]
[2024-11-24 00:10:58,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:10:58,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-24 00:10:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:10:58,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-24 00:10:58,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=814, Unknown=0, NotChecked=0, Total=1122
[2024-11-24 00:10:58,125 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 34 states, 32 states have (on average 2.03125) internal successors, (65), 34 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 14 states have return successors, (29), 13 states have call predecessors, (29), 16 states have call successors, (29)
[2024-11-24 00:10:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:10:58,382 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions.
[2024-11-24 00:10:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-24 00:10:58,382 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 2.03125) internal successors, (65), 34 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 14 states have return successors, (29), 13 states have call predecessors, (29), 16 states have call successors, (29) Word has length 76
[2024-11-24 00:10:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:10:58,383 INFO L225 Difference]: With dead ends: 61
[2024-11-24 00:10:58,383 INFO L226 Difference]: Without dead ends: 54
[2024-11-24 00:10:58,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 133 SyntacticMatches, 12 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=1352, Unknown=0, NotChecked=0, Total=1980
[2024-11-24 00:10:58,385 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 169 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:10:58,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 124 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:10:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-24 00:10:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51.
[2024-11-24 00:10:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 13 states have return successors, (14), 13 states have call predecessors, (14), 3 states have call successors, (14)
[2024-11-24 00:10:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions.
[2024-11-24 00:10:58,393 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 76
[2024-11-24 00:10:58,393 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:10:58,393 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions.
[2024-11-24 00:10:58,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 2.03125) internal successors, (65), 34 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 14 states have return successors, (29), 13 states have call predecessors, (29), 16 states have call successors, (29)
[2024-11-24 00:10:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions.
[2024-11-24 00:10:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-11-24 00:10:58,394 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:10:58,394 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:10:58,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-24 00:10:58,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:58,598 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:10:58,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:10:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1734686668, now seen corresponding path program 10 times
[2024-11-24 00:10:58,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:10:58,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675600999]
[2024-11-24 00:10:58,599 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:10:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:10:58,616 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:10:58,617 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 21 proven. 245 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked.
[2024-11-24 00:10:58,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:10:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675600999]
[2024-11-24 00:10:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675600999] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:10:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046444493]
[2024-11-24 00:10:58,998 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:10:58,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:10:58,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:10:59,000 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:10:59,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-24 00:10:59,370 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:10:59,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:10:59,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-24 00:10:59,373 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:10:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2024-11-24 00:10:59,521 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:11:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked.
[2024-11-24 00:11:09,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046444493] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:11:09,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:11:09,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 29] total 36
[2024-11-24 00:11:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47799413]
[2024-11-24 00:11:09,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:11:09,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2024-11-24 00:11:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:11:09,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2024-11-24 00:11:09,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260
[2024-11-24 00:11:09,307 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 36 states, 33 states have (on average 2.090909090909091) internal successors, (69), 36 states have internal predecessors, (69), 18 states have call successors, (18), 1 states have call predecessors, (18), 15 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29)
[2024-11-24 00:11:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:11:09,616 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions.
[2024-11-24 00:11:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-24 00:11:09,617 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 2.090909090909091) internal successors, (69), 36 states have internal predecessors, (69), 18 states have call successors, (18), 1 states have call predecessors, (18), 15 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) Word has length 82
[2024-11-24 00:11:09,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:11:09,618 INFO L225 Difference]: With dead ends: 73
[2024-11-24 00:11:09,618 INFO L226 Difference]: Without dead ends: 63
[2024-11-24 00:11:09,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 144 SyntacticMatches, 13 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=790, Invalid=1760, Unknown=0, NotChecked=0, Total=2550
[2024-11-24 00:11:09,620 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 171 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:11:09,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 131 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:11:09,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-24 00:11:09,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60.
[2024-11-24 00:11:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.05) internal successors, (42), 41 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 16 states have return successors, (17), 16 states have call predecessors, (17), 3 states have call successors, (17)
[2024-11-24 00:11:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions.
[2024-11-24 00:11:09,629 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 82
[2024-11-24 00:11:09,629 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:11:09,629 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions.
[2024-11-24 00:11:09,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 2.090909090909091) internal successors, (69), 36 states have internal predecessors, (69), 18 states have call successors, (18), 1 states have call predecessors, (18), 15 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29)
[2024-11-24 00:11:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions.
[2024-11-24 00:11:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2024-11-24 00:11:09,631 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:11:09,631 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:11:09,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-11-24 00:11:09,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:09,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:11:09,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:11:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash 415287702, now seen corresponding path program 11 times
[2024-11-24 00:11:09,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:11:09,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055212405]
[2024-11-24 00:11:09,836 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:11:09,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:11:09,865 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s)
[2024-11-24 00:11:09,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:11:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-11-24 00:11:10,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:11:10,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055212405]
[2024-11-24 00:11:10,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055212405] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:11:10,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929957026]
[2024-11-24 00:11:10,344 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:11:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:11:10,346 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:11:10,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-24 00:11:10,860 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s)
[2024-11-24 00:11:10,860 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:11:10,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-11-24 00:11:10,864 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:11:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-11-24 00:11:10,992 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:11:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-11-24 00:11:31,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929957026] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:11:31,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:11:31,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 35] total 37
[2024-11-24 00:11:31,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628178699]
[2024-11-24 00:11:31,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:11:31,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-11-24 00:11:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:11:31,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-11-24 00:11:31,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332
[2024-11-24 00:11:31,514 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 37 states, 35 states have (on average 2.057142857142857) internal successors, (72), 37 states have internal predecessors, (72), 18 states have call successors, (18), 1 states have call predecessors, (18), 16 states have return successors, (32), 16 states have call predecessors, (32), 18 states have call successors, (32)
[2024-11-24 00:11:31,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:11:31,969 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions.
[2024-11-24 00:11:31,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-24 00:11:31,971 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 2.057142857142857) internal successors, (72), 37 states have internal predecessors, (72), 18 states have call successors, (18), 1 states have call predecessors, (18), 16 states have return successors, (32), 16 states have call predecessors, (32), 18 states have call successors, (32) Word has length 100
[2024-11-24 00:11:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:11:31,972 INFO L225 Difference]: With dead ends: 73
[2024-11-24 00:11:31,972 INFO L226 Difference]: Without dead ends: 66
[2024-11-24 00:11:31,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 182 SyntacticMatches, 16 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=854, Invalid=1798, Unknown=0, NotChecked=0, Total=2652
[2024-11-24 00:11:31,974 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 142 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:11:31,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 145 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:11:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-24 00:11:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63.
[2024-11-24 00:11:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 43 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 17 states have return successors, (18), 17 states have call predecessors, (18), 3 states have call successors, (18)
[2024-11-24 00:11:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions.
[2024-11-24 00:11:31,992 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 100
[2024-11-24 00:11:31,993 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:11:31,993 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions.
[2024-11-24 00:11:31,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 2.057142857142857) internal successors, (72), 37 states have internal predecessors, (72), 18 states have call successors, (18), 1 states have call predecessors, (18), 16 states have return successors, (32), 16 states have call predecessors, (32), 18 states have call successors, (32)
[2024-11-24 00:11:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions.
[2024-11-24 00:11:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-24 00:11:31,994 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:11:31,994 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:11:32,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-24 00:11:32,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:32,195 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:11:32,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:11:32,196 INFO L85 PathProgramCache]: Analyzing trace with hash 317812044, now seen corresponding path program 12 times
[2024-11-24 00:11:32,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:11:32,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766026768]
[2024-11-24 00:11:32,196 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:11:32,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:11:32,255 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s)
[2024-11-24 00:11:32,256 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:11:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 52 proven. 458 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2024-11-24 00:11:32,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:11:32,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766026768]
[2024-11-24 00:11:32,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766026768] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:11:32,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897153283]
[2024-11-24 00:11:32,894 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:11:32,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:32,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:11:32,897 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:11:32,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-24 00:11:33,641 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s)
[2024-11-24 00:11:33,641 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:11:33,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 36 conjuncts are in the unsatisfiable core
[2024-11-24 00:11:33,645 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:11:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-24 00:11:33,803 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:11:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2024-11-24 00:11:58,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897153283] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:11:58,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:11:58,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 37] total 44
[2024-11-24 00:11:58,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884500310]
[2024-11-24 00:11:58,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:11:58,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2024-11-24 00:11:58,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:11:58,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2024-11-24 00:11:58,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=1379, Unknown=0, NotChecked=0, Total=1892
[2024-11-24 00:11:58,424 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 44 states, 42 states have (on average 2.0238095238095237) internal successors, (85), 44 states have internal predecessors, (85), 21 states have call successors, (21), 1 states have call predecessors, (21), 19 states have return successors, (39), 18 states have call predecessors, (39), 21 states have call successors, (39)
[2024-11-24 00:11:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:11:58,805 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions.
[2024-11-24 00:11:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-24 00:11:58,806 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 42 states have (on average 2.0238095238095237) internal successors, (85), 44 states have internal predecessors, (85), 21 states have call successors, (21), 1 states have call predecessors, (21), 19 states have return successors, (39), 18 states have call predecessors, (39), 21 states have call successors, (39) Word has length 106
[2024-11-24 00:11:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:11:58,807 INFO L225 Difference]: With dead ends: 76
[2024-11-24 00:11:58,807 INFO L226 Difference]: Without dead ends: 69
[2024-11-24 00:11:58,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 188 SyntacticMatches, 17 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1358 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1138, Invalid=2402, Unknown=0, NotChecked=0, Total=3540
[2024-11-24 00:11:58,809 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 125 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:11:58,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 164 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:11:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-11-24 00:11:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66.
[2024-11-24 00:11:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 45 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 18 states have return successors, (19), 18 states have call predecessors, (19), 3 states have call successors, (19)
[2024-11-24 00:11:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions.
[2024-11-24 00:11:58,825 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 106
[2024-11-24 00:11:58,825 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:11:58,825 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions.
[2024-11-24 00:11:58,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 42 states have (on average 2.0238095238095237) internal successors, (85), 44 states have internal predecessors, (85), 21 states have call successors, (21), 1 states have call predecessors, (21), 19 states have return successors, (39), 18 states have call predecessors, (39), 21 states have call successors, (39)
[2024-11-24 00:11:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions.
[2024-11-24 00:11:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-24 00:11:58,827 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:11:58,827 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:11:58,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-24 00:11:59,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:59,028 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:11:59,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:11:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2122437418, now seen corresponding path program 13 times
[2024-11-24 00:11:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:11:59,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743797059]
[2024-11-24 00:11:59,029 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:11:59,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:11:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:11:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2024-11-24 00:11:59,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:11:59,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743797059]
[2024-11-24 00:11:59,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743797059] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:11:59,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40581975]
[2024-11-24 00:11:59,664 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:11:59,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:11:59,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:11:59,667 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:11:59,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-24 00:12:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:12:00,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-24 00:12:00,615 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:12:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2024-11-24 00:12:00,762 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:12:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked.
[2024-11-24 00:12:30,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40581975] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:12:30,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:12:30,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 39] total 41
[2024-11-24 00:12:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982659639]
[2024-11-24 00:12:30,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:12:30,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2024-11-24 00:12:30,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:12:30,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2024-11-24 00:12:30,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=1218, Unknown=0, NotChecked=0, Total=1640
[2024-11-24 00:12:30,761 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 41 states, 39 states have (on average 2.051282051282051) internal successors, (80), 41 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (36), 18 states have call predecessors, (36), 20 states have call successors, (36)
[2024-11-24 00:12:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:12:31,086 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions.
[2024-11-24 00:12:31,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-24 00:12:31,087 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 2.051282051282051) internal successors, (80), 41 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (36), 18 states have call predecessors, (36), 20 states have call successors, (36) Word has length 112
[2024-11-24 00:12:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:12:31,089 INFO L225 Difference]: With dead ends: 79
[2024-11-24 00:12:31,089 INFO L226 Difference]: Without dead ends: 72
[2024-11-24 00:12:31,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 204 SyntacticMatches, 18 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1068, Invalid=2238, Unknown=0, NotChecked=0, Total=3306
[2024-11-24 00:12:31,091 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 39 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:12:31,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 160 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:12:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-24 00:12:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69.
[2024-11-24 00:12:31,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 19 states have return successors, (20), 19 states have call predecessors, (20), 3 states have call successors, (20)
[2024-11-24 00:12:31,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions.
[2024-11-24 00:12:31,103 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 112
[2024-11-24 00:12:31,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:12:31,103 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions.
[2024-11-24 00:12:31,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 2.051282051282051) internal successors, (80), 41 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (36), 18 states have call predecessors, (36), 20 states have call successors, (36)
[2024-11-24 00:12:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions.
[2024-11-24 00:12:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-24 00:12:31,106 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:12:31,106 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:12:31,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-24 00:12:31,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:12:31,310 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:12:31,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:12:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 55840780, now seen corresponding path program 14 times
[2024-11-24 00:12:31,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:12:31,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876469766]
[2024-11-24 00:12:31,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:12:31,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:12:31,339 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:12:31,340 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:12:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked.
[2024-11-24 00:12:32,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:12:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876469766]
[2024-11-24 00:12:32,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876469766] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:12:32,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360751254]
[2024-11-24 00:12:32,041 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:12:32,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:12:32,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:12:32,042 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:12:32,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-24 00:12:33,244 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:12:33,244 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:12:33,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-24 00:12:33,248 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:12:33,386 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2024-11-24 00:12:33,386 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:13:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked.
[2024-11-24 00:13:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360751254] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:13:08,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:13:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 41] total 45
[2024-11-24 00:13:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068820897]
[2024-11-24 00:13:08,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:13:08,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2024-11-24 00:13:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:13:08,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2024-11-24 00:13:08,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=1454, Unknown=0, NotChecked=0, Total=1980
[2024-11-24 00:13:08,061 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand has 45 states, 43 states have (on average 2.0232558139534884) internal successors, (87), 45 states have internal predecessors, (87), 21 states have call successors, (21), 1 states have call predecessors, (21), 20 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39)
[2024-11-24 00:13:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:13:08,597 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions.
[2024-11-24 00:13:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-24 00:13:08,598 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 2.0232558139534884) internal successors, (87), 45 states have internal predecessors, (87), 21 states have call successors, (21), 1 states have call predecessors, (21), 20 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) Word has length 118
[2024-11-24 00:13:08,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:13:08,599 INFO L225 Difference]: With dead ends: 82
[2024-11-24 00:13:08,600 INFO L226 Difference]: Without dead ends: 75
[2024-11-24 00:13:08,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 213 SyntacticMatches, 19 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1305, Invalid=2727, Unknown=0, NotChecked=0, Total=4032
[2024-11-24 00:13:08,601 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 145 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:13:08,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 158 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:13:08,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-24 00:13:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72.
[2024-11-24 00:13:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 20 states have call predecessors, (21), 3 states have call successors, (21)
[2024-11-24 00:13:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions.
[2024-11-24 00:13:08,614 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 118
[2024-11-24 00:13:08,614 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:13:08,614 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions.
[2024-11-24 00:13:08,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 2.0232558139534884) internal successors, (87), 45 states have internal predecessors, (87), 21 states have call successors, (21), 1 states have call predecessors, (21), 20 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39)
[2024-11-24 00:13:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions.
[2024-11-24 00:13:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-24 00:13:08,616 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:13:08,616 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:13:08,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-24 00:13:08,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-24 00:13:08,817 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:13:08,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:13:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash -806952938, now seen corresponding path program 15 times
[2024-11-24 00:13:08,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:13:08,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728555541]
[2024-11-24 00:13:08,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:13:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:13:08,860 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s)
[2024-11-24 00:13:08,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:13:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 100 proven. 636 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked.
[2024-11-24 00:13:09,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:13:09,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728555541]
[2024-11-24 00:13:09,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728555541] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:13:09,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490633789]
[2024-11-24 00:13:09,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:13:09,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:13:09,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:13:09,652 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:13:09,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-24 00:13:11,205 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s)
[2024-11-24 00:13:11,205 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:13:11,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-24 00:13:11,211 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:13:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked.
[2024-11-24 00:13:11,347 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:13:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-11-24 00:13:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490633789] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:13:52,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:13:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 24, 43] total 49
[2024-11-24 00:13:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164861696]
[2024-11-24 00:13:52,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:13:52,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states
[2024-11-24 00:13:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:13:52,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants.
[2024-11-24 00:13:52,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=657, Invalid=1695, Unknown=0, NotChecked=0, Total=2352
[2024-11-24 00:13:52,789 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 49 states, 48 states have (on average 2.0) internal successors, (96), 49 states have internal predecessors, (96), 23 states have call successors, (23), 1 states have call predecessors, (23), 22 states have return successors, (46), 21 states have call predecessors, (46), 23 states have call successors, (46)
[2024-11-24 00:13:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:13:53,255 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions.
[2024-11-24 00:13:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-24 00:13:53,256 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 49 states have internal predecessors, (96), 23 states have call successors, (23), 1 states have call predecessors, (23), 22 states have return successors, (46), 21 states have call predecessors, (46), 23 states have call successors, (46) Word has length 124
[2024-11-24 00:13:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:13:53,256 INFO L225 Difference]: With dead ends: 85
[2024-11-24 00:13:53,256 INFO L226 Difference]: Without dead ends: 78
[2024-11-24 00:13:53,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 221 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1714 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1513, Invalid=3043, Unknown=0, NotChecked=0, Total=4556
[2024-11-24 00:13:53,258 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 227 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:13:53,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 171 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:13:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-24 00:13:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75.
[2024-11-24 00:13:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.04) internal successors, (52), 51 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 21 states have call predecessors, (22), 3 states have call successors, (22)
[2024-11-24 00:13:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions.
[2024-11-24 00:13:53,268 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 124
[2024-11-24 00:13:53,269 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:13:53,269 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions.
[2024-11-24 00:13:53,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.0) internal successors, (96), 49 states have internal predecessors, (96), 23 states have call successors, (23), 1 states have call predecessors, (23), 22 states have return successors, (46), 21 states have call predecessors, (46), 23 states have call successors, (46)
[2024-11-24 00:13:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions.
[2024-11-24 00:13:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-24 00:13:53,271 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:13:53,271 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:13:53,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-24 00:13:53,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:13:53,472 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:13:53,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:13:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1807457588, now seen corresponding path program 16 times
[2024-11-24 00:13:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:13:53,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193356964]
[2024-11-24 00:13:53,472 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:13:53,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:13:53,518 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:13:53,518 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:13:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2024-11-24 00:13:55,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:13:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193356964]
[2024-11-24 00:13:55,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193356964] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:13:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669612762]
[2024-11-24 00:13:55,325 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:13:55,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:13:55,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:13:55,327 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:13:55,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-24 00:13:57,354 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:13:57,354 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:13:57,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 87 conjuncts are in the unsatisfiable core
[2024-11-24 00:13:57,364 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:13:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2024-11-24 00:13:57,502 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:13:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked.
[2024-11-24 00:13:59,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669612762] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:13:59,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:13:59,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 45
[2024-11-24 00:13:59,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496526875]
[2024-11-24 00:13:59,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:13:59,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2024-11-24 00:13:59,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:13:59,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2024-11-24 00:13:59,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980
[2024-11-24 00:13:59,671 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 45 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 24 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-24 00:14:00,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:14:00,374 INFO L93 Difference]: Finished difference Result 88 states and 91 transitions.
[2024-11-24 00:14:00,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states.
[2024-11-24 00:14:00,375 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 24 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130
[2024-11-24 00:14:00,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:14:00,376 INFO L225 Difference]: With dead ends: 88
[2024-11-24 00:14:00,377 INFO L226 Difference]: Without dead ends: 81
[2024-11-24 00:14:00,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980
[2024-11-24 00:14:00,378 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-24 00:14:00,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1823 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-24 00:14:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-24 00:14:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78.
[2024-11-24 00:14:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 3 states have call successors, (3), 2 states have call predecessors, (3), 22 states have return successors, (23), 22 states have call predecessors, (23), 3 states have call successors, (23)
[2024-11-24 00:14:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions.
[2024-11-24 00:14:00,390 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 130
[2024-11-24 00:14:00,390 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:14:00,390 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions.
[2024-11-24 00:14:00,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 24 states have internal predecessors, (49), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-24 00:14:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions.
[2024-11-24 00:14:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-24 00:14:00,392 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:14:00,392 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:14:00,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-24 00:14:00,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-24 00:14:00,596 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:14:00,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:14:00,597 INFO L85 PathProgramCache]: Analyzing trace with hash 874439510, now seen corresponding path program 17 times
[2024-11-24 00:14:00,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:14:00,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74350471]
[2024-11-24 00:14:00,597 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:14:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:14:00,651 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s)
[2024-11-24 00:14:00,652 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:14:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked.
[2024-11-24 00:14:01,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:14:01,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74350471]
[2024-11-24 00:14:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74350471] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:14:01,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:14:01,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26
[2024-11-24 00:14:01,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690591562]
[2024-11-24 00:14:01,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:14:01,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-24 00:14:01,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:14:01,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-24 00:14:01,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=370, Unknown=0, NotChecked=0, Total=650
[2024-11-24 00:14:01,472 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 26 states, 25 states have (on average 2.04) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-24 00:14:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:14:01,863 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions.
[2024-11-24 00:14:01,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-24 00:14:01,864 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.04) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) Word has length 136
[2024-11-24 00:14:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:14:01,865 INFO L225 Difference]: With dead ends: 81
[2024-11-24 00:14:01,865 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 00:14:01,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=1357, Unknown=0, NotChecked=0, Total=2162
[2024-11-24 00:14:01,866 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:14:01,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 217 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:14:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 00:14:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 00:14:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:14:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 00:14:01,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136
[2024-11-24 00:14:01,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:14:01,867 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 00:14:01,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.04) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-24 00:14:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 00:14:01,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 00:14:01,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 00:14:01,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-24 00:14:01,876 INFO L422 BasicCegarLoop]: Path program histogram: [17, 1]
[2024-11-24 00:14:01,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-24 00:14:04,352 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:14:04,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:14:04 BoogieIcfgContainer
[2024-11-24 00:14:04,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:14:04,360 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:14:04,360 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:14:04,360 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 00:14:04,361 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:22" (3/4) ...
[2024-11-24 00:14:04,363 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 00:14:04,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id
[2024-11-24 00:14:04,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-24 00:14:04,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-24 00:14:04,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-24 00:14:04,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 00:14:04,439 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 00:14:04,440 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 00:14:04,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:14:04,440 INFO L158 Benchmark]: Toolchain (without parser) took 222476.94ms. Allocated memory was 142.6MB in the beginning and 838.9MB in the end (delta: 696.3MB). Free memory was 117.7MB in the beginning and 296.7MB in the end (delta: -178.9MB). Peak memory consumption was 512.7MB. Max. memory is 16.1GB.
[2024-11-24 00:14:04,441 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:14:04,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.03ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:14:04,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.09ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:14:04,441 INFO L158 Benchmark]: Boogie Preprocessor took 23.10ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 105.1MB in the end (delta: 924.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:14:04,442 INFO L158 Benchmark]: RCFGBuilder took 250.09ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 96.2MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:14:04,442 INFO L158 Benchmark]: TraceAbstraction took 221825.60ms. Allocated memory was 142.6MB in the beginning and 838.9MB in the end (delta: 696.3MB). Free memory was 95.5MB in the beginning and 300.7MB in the end (delta: -205.2MB). Peak memory consumption was 506.3MB. Max. memory is 16.1GB.
[2024-11-24 00:14:04,442 INFO L158 Benchmark]: Witness Printer took 80.29ms. Allocated memory is still 838.9MB. Free memory was 300.7MB in the beginning and 296.7MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:14:04,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 257.03ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 32.09ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 23.10ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 105.1MB in the end (delta: 924.0kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 250.09ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 96.2MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 221825.60ms. Allocated memory was 142.6MB in the beginning and 838.9MB in the end (delta: 696.3MB). Free memory was 95.5MB in the beginning and 300.7MB in the end (delta: -205.2MB). Peak memory consumption was 506.3MB. Max. memory is 16.1GB.
* Witness Printer took 80.29ms. Allocated memory is still 838.9MB. Free memory was 300.7MB in the beginning and 296.7MB in the end (delta: 4.1MB). There was no memory consumed. 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: 15]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 219.3s, OverallIterations: 18, TraceHistogramMax: 22, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1663 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1499 mSDsluCounter, 3753 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3476 mSDsCounter, 705 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2585 IncrementalHoareTripleChecker+Invalid, 3290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 705 mSolverCounterUnsat, 277 mSDtfsCounter, 2585 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3011 GetRequests, 2171 SyntacticMatches, 168 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9670 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=17, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 39 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 201.2s InterpolantComputationTime, 2530 NumberOfCodeBlocks, 2530 NumberOfCodeBlocksAsserted, 225 NumberOfCheckSat, 3672 ConstructedInterpolants, 0 QuantifiedInterpolants, 10582 SizeOfPredicates, 152 NumberOfNonLiveVariables, 3080 ConjunctsInSsa, 451 ConjunctsInUnsatCore, 50 InterpolantComputations, 2 PerfectInterpolantSequences, 10254/23856 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
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 00:14:04,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c31dd116-8a2d-4f4c-89e5-b02ced638192/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