./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/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 ca6b6f09277139d829682a6458fdcdacf72411331aa404fd46248e3dcb9a9e7f
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 22:43:09,914 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 22:43:10,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 22:43:10,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 22:43:10,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 22:43:10,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 22:43:10,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 22:43:10,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 22:43:10,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 22:43:10,074 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 22:43:10,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 22:43:10,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 22:43:10,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 22:43:10,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 22:43:10,076 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 22:43:10,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 22:43:10,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 22:43:10,078 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:43:10,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:43:10,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:43:10,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 22:43:10,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 22:43:10,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 22:43:10,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 22:43:10,080 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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/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 -> ca6b6f09277139d829682a6458fdcdacf72411331aa404fd46248e3dcb9a9e7f
[2024-11-23 22:43:10,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 22:43:10,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 22:43:10,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 22:43:10,428 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 22:43:10,428 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 22:43:10,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c
[2024-11-23 22:43:13,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/data/522a5d661/268db8c47aec403ea45e4dae4892001d/FLAGf4118e304
[2024-11-23 22:43:13,891 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 22:43:13,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c
[2024-11-23 22:43:13,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/data/522a5d661/268db8c47aec403ea45e4dae4892001d/FLAGf4118e304
[2024-11-23 22:43:13,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/data/522a5d661/268db8c47aec403ea45e4dae4892001d
[2024-11-23 22:43:13,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 22:43:13,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 22:43:13,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 22:43:13,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 22:43:13,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 22:43:13,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:13" (1/1) ...
[2024-11-23 22:43:13,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8807899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:13, skipping insertion in model container
[2024-11-23 22:43:13,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:13" (1/1) ...
[2024-11-23 22:43:13,958 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 22:43:14,166 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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c[537,550]
[2024-11-23 22:43:14,189 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:43:14,200 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 22:43:14,213 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_930efed6-e87c-4fcb-98d9-b24a1681dfa0/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c[537,550]
[2024-11-23 22:43:14,222 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 22:43:14,238 INFO L204 MainTranslator]: Completed translation
[2024-11-23 22:43:14,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14 WrapperNode
[2024-11-23 22:43:14,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 22:43:14,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 22:43:14,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 22:43:14,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 22:43:14,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,279 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42
[2024-11-23 22:43:14,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 22:43:14,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 22:43:14,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 22:43:14,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 22:43:14,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,314 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].
[2024-11-23 22:43:14,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,319 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 22:43:14,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 22:43:14,330 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 22:43:14,330 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 22:43:14,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (1/1) ...
[2024-11-23 22:43:14,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 22:43:14,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:14,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 22:43:14,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 22:43:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 22:43:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 22:43:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 22:43:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 22:43:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 22:43:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 22:43:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-23 22:43:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-23 22:43:14,473 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 22:43:14,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 22:43:14,631 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-23 22:43:14,634 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 22:43:14,644 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 22:43:14,644 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 22:43:14,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:14 BoogieIcfgContainer
[2024-11-23 22:43:14,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 22:43:14,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 22:43:14,648 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 22:43:14,653 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 22:43:14,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:43:13" (1/3) ...
[2024-11-23 22:43:14,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b6a0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:14, skipping insertion in model container
[2024-11-23 22:43:14,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:14" (2/3) ...
[2024-11-23 22:43:14,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b6a0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:14, skipping insertion in model container
[2024-11-23 22:43:14,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:14" (3/3) ...
[2024-11-23 22:43:14,657 INFO L128 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound10.c
[2024-11-23 22:43:14,675 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 22:43:14,677 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_valuebound10.c that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 22:43:14,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 22:43:14,772 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;@4ab04a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 22:43:14,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 22:43:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-23 22:43:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 22:43:14,785 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:14,786 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:14,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:14,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:14,793 INFO L85 PathProgramCache]: Analyzing trace with hash -6260811, now seen corresponding path program 1 times
[2024-11-23 22:43:14,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:14,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634554592]
[2024-11-23 22:43:14,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:15,012 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-23 22:43:15,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634554592]
[2024-11-23 22:43:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634554592] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416330667]
[2024-11-23 22:43:15,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:15,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:15,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:15,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:15,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 22:43:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:15,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:15,144 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-23 22:43:15,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 22:43:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416330667] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:43:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:43:15,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-23 22:43:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092793606]
[2024-11-23 22:43:15,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:43:15,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 22:43:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:15,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 22:43:15,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:43:15,194 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-23 22:43:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:15,215 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions.
[2024-11-23 22:43:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 22:43:15,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2024-11-23 22:43:15,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:15,226 INFO L225 Difference]: With dead ends: 49
[2024-11-23 22:43:15,227 INFO L226 Difference]: Without dead ends: 22
[2024-11-23 22:43:15,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 22:43:15,234 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:15,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 22:43:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-11-23 22:43:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-11-23 22:43:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-23 22:43:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions.
[2024-11-23 22:43:15,272 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 23
[2024-11-23 22:43:15,272 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:15,272 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions.
[2024-11-23 22:43:15,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-23 22:43:15,273 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions.
[2024-11-23 22:43:15,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-23 22:43:15,274 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:15,274 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:15,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 22:43:15,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-23 22:43:15,477 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:15,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1203610103, now seen corresponding path program 1 times
[2024-11-23 22:43:15,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:15,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102017619]
[2024-11-23 22:43:15,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:15,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 22:43:15,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542422566]
[2024-11-23 22:43:15,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:15,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:15,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:15,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:15,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 22:43:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:15,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:15,600 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 22:43:15,957 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 22:43:16,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:16,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102017619]
[2024-11-23 22:43:16,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:16,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542422566]
[2024-11-23 22:43:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542422566] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:16,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:43:16,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10
[2024-11-23 22:43:16,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523430525]
[2024-11-23 22:43:16,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:43:16,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 22:43:16,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:16,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 22:43:16,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:43:16,096 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-23 22:43:16,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:16,206 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions.
[2024-11-23 22:43:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 22:43:16,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2024-11-23 22:43:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:16,208 INFO L225 Difference]: With dead ends: 32
[2024-11-23 22:43:16,209 INFO L226 Difference]: Without dead ends: 30
[2024-11-23 22:43:16,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:43:16,210 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:16,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 68 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 22:43:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-23 22:43:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27.
[2024-11-23 22:43:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-23 22:43:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions.
[2024-11-23 22:43:16,219 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 23
[2024-11-23 22:43:16,220 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:16,221 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions.
[2024-11-23 22:43:16,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-23 22:43:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2024-11-23 22:43:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-23 22:43:16,222 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:16,222 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:16,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-23 22:43:16,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:16,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:16,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash 401861050, now seen corresponding path program 1 times
[2024-11-23 22:43:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:16,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729570570]
[2024-11-23 22:43:16,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 22:43:16,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:16,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729570570]
[2024-11-23 22:43:16,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729570570] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 22:43:16,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 22:43:16,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 22:43:16,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249357917]
[2024-11-23 22:43:16,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:43:16,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 22:43:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:16,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 22:43:16,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:43:16,654 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-23 22:43:16,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:16,742 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions.
[2024-11-23 22:43:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 22:43:16,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29
[2024-11-23 22:43:16,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:16,744 INFO L225 Difference]: With dead ends: 37
[2024-11-23 22:43:16,744 INFO L226 Difference]: Without dead ends: 30
[2024-11-23 22:43:16,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 22:43:16,745 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:16,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 58 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 22:43:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-23 22:43:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28.
[2024-11-23 22:43:16,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-23 22:43:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions.
[2024-11-23 22:43:16,757 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 29
[2024-11-23 22:43:16,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:16,758 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions.
[2024-11-23 22:43:16,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-23 22:43:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions.
[2024-11-23 22:43:16,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-23 22:43:16,761 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:16,762 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:16,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 22:43:16,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:16,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:16,763 INFO L85 PathProgramCache]: Analyzing trace with hash 255967682, now seen corresponding path program 1 times
[2024-11-23 22:43:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:16,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651625917]
[2024-11-23 22:43:16,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 22:43:16,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865433132]
[2024-11-23 22:43:16,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:16,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:16,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:16,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:16,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 22:43:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:16,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:16,915 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 22:43:17,350 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 22:43:18,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651625917]
[2024-11-23 22:43:18,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865433132]
[2024-11-23 22:43:18,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865433132] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:18,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 22:43:18,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11
[2024-11-23 22:43:18,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885029369]
[2024-11-23 22:43:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 22:43:18,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 22:43:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:18,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 22:43:18,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:43:18,224 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-23 22:43:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:18,461 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions.
[2024-11-23 22:43:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 22:43:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31
[2024-11-23 22:43:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:18,463 INFO L225 Difference]: With dead ends: 39
[2024-11-23 22:43:18,463 INFO L226 Difference]: Without dead ends: 37
[2024-11-23 22:43:18,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-23 22:43:18,464 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:18,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 83 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 22:43:18,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-23 22:43:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36.
[2024-11-23 22:43:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-23 22:43:18,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions.
[2024-11-23 22:43:18,473 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 31
[2024-11-23 22:43:18,473 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:18,474 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions.
[2024-11-23 22:43:18,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-23 22:43:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions.
[2024-11-23 22:43:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-23 22:43:18,477 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:18,477 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:18,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 22:43:18,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:18,682 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:18,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash 313225984, now seen corresponding path program 1 times
[2024-11-23 22:43:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:18,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145101054]
[2024-11-23 22:43:18,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 22:43:18,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388705040]
[2024-11-23 22:43:18,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:18,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:18,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:18,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:18,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 22:43:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:18,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:18,804 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 22:43:19,201 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 22:43:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145101054]
[2024-11-23 22:43:19,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388705040]
[2024-11-23 22:43:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388705040] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:43:19,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:43:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17
[2024-11-23 22:43:19,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205011078]
[2024-11-23 22:43:19,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:19,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-23 22:43:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:19,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-23 22:43:19,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2024-11-23 22:43:19,909 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 17 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 states have internal predecessors, (26), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-23 22:43:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:20,673 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions.
[2024-11-23 22:43:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-23 22:43:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 states have internal predecessors, (26), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 31
[2024-11-23 22:43:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:20,676 INFO L225 Difference]: With dead ends: 61
[2024-11-23 22:43:20,676 INFO L226 Difference]: Without dead ends: 54
[2024-11-23 22:43:20,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506
[2024-11-23 22:43:20,677 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 43 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:20,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 151 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 22:43:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-23 22:43:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53.
[2024-11-23 22:43:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 38 states have internal predecessors, (48), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 22:43:20,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions.
[2024-11-23 22:43:20,689 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 31
[2024-11-23 22:43:20,689 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:20,689 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions.
[2024-11-23 22:43:20,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 14 states have internal predecessors, (26), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-23 22:43:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions.
[2024-11-23 22:43:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-11-23 22:43:20,690 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:20,690 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:20,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 22:43:20,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:20,895 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:20,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash 3523909, now seen corresponding path program 1 times
[2024-11-23 22:43:20,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:20,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732581787]
[2024-11-23 22:43:20,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:20,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 22:43:20,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726014705]
[2024-11-23 22:43:20,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:20,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:20,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:20,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:20,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 22:43:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:20,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:20,991 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-23 22:43:21,100 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-23 22:43:21,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:21,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732581787]
[2024-11-23 22:43:21,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:21,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726014705]
[2024-11-23 22:43:21,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726014705] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:43:21,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:43:21,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2024-11-23 22:43:21,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535203577]
[2024-11-23 22:43:21,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:21,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 22:43:21,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:21,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 22:43:21,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-23 22:43:21,219 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-23 22:43:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:21,336 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions.
[2024-11-23 22:43:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 22:43:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37
[2024-11-23 22:43:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:21,339 INFO L225 Difference]: With dead ends: 61
[2024-11-23 22:43:21,339 INFO L226 Difference]: Without dead ends: 54
[2024-11-23 22:43:21,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2024-11-23 22:43:21,340 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:21,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 136 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 22:43:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-23 22:43:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52.
[2024-11-23 22:43:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 22:43:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions.
[2024-11-23 22:43:21,357 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 37
[2024-11-23 22:43:21,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:21,357 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions.
[2024-11-23 22:43:21,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-23 22:43:21,357 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions.
[2024-11-23 22:43:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-11-23 22:43:21,360 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:21,360 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:21,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-23 22:43:21,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:21,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:21,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash -236677173, now seen corresponding path program 1 times
[2024-11-23 22:43:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883849400]
[2024-11-23 22:43:21,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 22:43:21,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787975987]
[2024-11-23 22:43:21,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 22:43:21,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:21,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:21,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:21,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 22:43:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 22:43:21,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:21,672 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-23 22:43:22,155 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-23 22:43:28,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883849400]
[2024-11-23 22:43:28,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787975987]
[2024-11-23 22:43:28,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787975987] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:43:28,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:43:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15
[2024-11-23 22:43:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847513398]
[2024-11-23 22:43:28,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:28,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-23 22:43:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:28,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-23 22:43:28,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2024-11-23 22:43:28,089 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 15 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 7 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-23 22:43:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:31,763 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions.
[2024-11-23 22:43:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-23 22:43:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 7 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 39
[2024-11-23 22:43:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:31,765 INFO L225 Difference]: With dead ends: 76
[2024-11-23 22:43:31,767 INFO L226 Difference]: Without dead ends: 74
[2024-11-23 22:43:31,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2024-11-23 22:43:31,769 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:31,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 119 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-23 22:43:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-23 22:43:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72.
[2024-11-23 22:43:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-23 22:43:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions.
[2024-11-23 22:43:31,793 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 39
[2024-11-23 22:43:31,794 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:31,794 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions.
[2024-11-23 22:43:31,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 7 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-23 22:43:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions.
[2024-11-23 22:43:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-23 22:43:31,795 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:31,796 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:31,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-23 22:43:31,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:31,996 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:31,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:31,997 INFO L85 PathProgramCache]: Analyzing trace with hash -955697452, now seen corresponding path program 2 times
[2024-11-23 22:43:31,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:31,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103444935]
[2024-11-23 22:43:31,997 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 22:43:31,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:32,028 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 22:43:32,029 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown
[2024-11-23 22:43:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592459295]
[2024-11-23 22:43:32,030 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 22:43:32,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:32,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:32,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:32,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 22:43:32,085 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 22:43:32,086 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 22:43:32,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:32,089 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-23 22:43:33,064 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-23 22:43:37,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:37,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103444935]
[2024-11-23 22:43:37,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-23 22:43:37,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592459295]
[2024-11-23 22:43:37,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592459295] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:43:37,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:43:37,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11] total 23
[2024-11-23 22:43:37,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045969207]
[2024-11-23 22:43:37,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:37,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-23 22:43:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:37,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-23 22:43:37,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506
[2024-11-23 22:43:37,983 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand has 23 states, 20 states have (on average 2.0) internal successors, (40), 21 states have internal predecessors, (40), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10)
[2024-11-23 22:43:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:47,828 INFO L93 Difference]: Finished difference Result 107 states and 134 transitions.
[2024-11-23 22:43:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-23 22:43:47,828 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.0) internal successors, (40), 21 states have internal predecessors, (40), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47
[2024-11-23 22:43:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:47,831 INFO L225 Difference]: With dead ends: 107
[2024-11-23 22:43:47,831 INFO L226 Difference]: Without dead ends: 105
[2024-11-23 22:43:47,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992
[2024-11-23 22:43:47,833 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 23 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:47,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 169 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-23 22:43:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states.
[2024-11-23 22:43:47,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104.
[2024-11-23 22:43:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 77 states have internal predecessors, (91), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-23 22:43:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions.
[2024-11-23 22:43:47,853 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 47
[2024-11-23 22:43:47,853 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:47,853 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions.
[2024-11-23 22:43:47,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.0) internal successors, (40), 21 states have internal predecessors, (40), 7 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10)
[2024-11-23 22:43:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions.
[2024-11-23 22:43:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-23 22:43:47,855 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:47,855 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:47,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-23 22:43:48,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:48,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:48,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:48,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1528986721, now seen corresponding path program 3 times
[2024-11-23 22:43:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:48,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466077943]
[2024-11-23 22:43:48,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 22:43:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:48,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2024-11-23 22:43:48,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 22:43:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-23 22:43:49,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:49,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466077943]
[2024-11-23 22:43:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466077943] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:49,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757860417]
[2024-11-23 22:43:49,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 22:43:49,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:49,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:49,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:49,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 22:43:49,262 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-23 22:43:49,262 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 22:43:49,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:49,266 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-23 22:43:49,948 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757860417] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:50,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 22:43:50,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 23
[2024-11-23 22:43:50,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797411316]
[2024-11-23 22:43:50,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:50,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-23 22:43:50,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:50,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-23 22:43:50,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870
[2024-11-23 22:43:50,920 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 23 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 10 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12)
[2024-11-23 22:43:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:52,179 INFO L93 Difference]: Finished difference Result 178 states and 219 transitions.
[2024-11-23 22:43:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-23 22:43:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 10 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 55
[2024-11-23 22:43:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:52,181 INFO L225 Difference]: With dead ends: 178
[2024-11-23 22:43:52,181 INFO L226 Difference]: Without dead ends: 44
[2024-11-23 22:43:52,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=398, Invalid=1954, Unknown=0, NotChecked=0, Total=2352
[2024-11-23 22:43:52,183 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:52,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 242 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 22:43:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-23 22:43:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42.
[2024-11-23 22:43:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-23 22:43:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions.
[2024-11-23 22:43:52,205 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 55
[2024-11-23 22:43:52,206 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:52,206 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions.
[2024-11-23 22:43:52,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 21 states have internal predecessors, (46), 10 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12)
[2024-11-23 22:43:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions.
[2024-11-23 22:43:52,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-23 22:43:52,207 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 22:43:52,208 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 22:43:52,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-23 22:43:52,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:52,411 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 22:43:52,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 22:43:52,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1287499749, now seen corresponding path program 2 times
[2024-11-23 22:43:52,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 22:43:52,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372250980]
[2024-11-23 22:43:52,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 22:43:52,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 22:43:52,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 22:43:52,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 22:43:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-23 22:43:53,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 22:43:53,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372250980]
[2024-11-23 22:43:53,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372250980] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 22:43:53,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139245141]
[2024-11-23 22:43:53,615 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 22:43:53,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:53,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 22:43:53,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 22:43:53,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-23 22:43:53,675 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 22:43:53,675 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 22:43:53,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-23 22:43:53,683 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 22:43:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-23 22:43:53,989 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 22:43:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-23 22:43:55,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139245141] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 22:43:55,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 22:43:55,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 32
[2024-11-23 22:43:55,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610908068]
[2024-11-23 22:43:55,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 22:43:55,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states
[2024-11-23 22:43:55,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 22:43:55,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants.
[2024-11-23 22:43:55,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992
[2024-11-23 22:43:55,956 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 28 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19)
[2024-11-23 22:43:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 22:43:56,272 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions.
[2024-11-23 22:43:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-23 22:43:56,273 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 28 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) Word has length 55
[2024-11-23 22:43:56,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 22:43:56,273 INFO L225 Difference]: With dead ends: 44
[2024-11-23 22:43:56,273 INFO L226 Difference]: Without dead ends: 0
[2024-11-23 22:43:56,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482
[2024-11-23 22:43:56,275 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 14 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 22:43:56,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 156 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 22:43:56,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-23 22:43:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-23 22:43:56,276 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)
[2024-11-23 22:43:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-23 22:43:56,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55
[2024-11-23 22:43:56,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 22:43:56,276 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 22:43:56,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 28 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19)
[2024-11-23 22:43:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-23 22:43:56,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-23 22:43:56,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 22:43:56,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-23 22:43:56,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 22:43:56,483 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1]
[2024-11-23 22:43:56,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-23 22:43:57,827 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 22:43:57,848 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-23 22:43:57,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:43:57 BoogieIcfgContainer
[2024-11-23 22:43:57,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 22:43:57,862 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 22:43:57,862 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 22:43:57,863 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 22:43:57,864 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:14" (3/4) ...
[2024-11-23 22:43:57,867 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-23 22:43:57,874 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-11-23 22:43:57,874 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-23 22:43:57,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2024-11-23 22:43:57,883 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-23 22:43:57,883 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-23 22:43:57,883 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-23 22:43:57,982 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 22:43:57,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 22:43:57,983 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 22:43:57,985 INFO L158 Benchmark]: Toolchain (without parser) took 44061.59ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 93.4MB in the beginning and 105.5MB in the end (delta: -12.1MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB.
[2024-11-23 22:43:57,985 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:43:57,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.19ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:43:57,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:43:57,986 INFO L158 Benchmark]: Boogie Preprocessor took 49.59ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 22:43:57,986 INFO L158 Benchmark]: RCFGBuilder took 315.02ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.2MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 22:43:57,987 INFO L158 Benchmark]: TraceAbstraction took 43214.12ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 68.4MB in the beginning and 110.1MB in the end (delta: -41.6MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB.
[2024-11-23 22:43:57,987 INFO L158 Benchmark]: Witness Printer took 120.57ms. Allocated memory is still 218.1MB. Free memory was 110.1MB in the beginning and 105.5MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 22:43:57,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 317.19ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 37.30ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 49.59ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 315.02ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 69.2MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 43214.12ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 68.4MB in the beginning and 110.1MB in the end (delta: -41.6MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB.
* Witness Printer took 120.57ms. Allocated memory is still 218.1MB. Free memory was 110.1MB in the beginning and 105.5MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
* 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 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.8s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 1212 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1024 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1708 IncrementalHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 188 mSDtfsCounter, 1708 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 692 GetRequests, 489 SyntacticMatches, 17 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 24.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=8, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 14 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 21.9s InterpolantComputationTime, 711 NumberOfCodeBlocks, 703 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 746 ConstructedInterpolants, 2 QuantifiedInterpolants, 5070 SizeOfPredicates, 17 NumberOfNonLiveVariables, 864 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 582/668 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
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: ((((((((((((b == y) && (1 <= b)) && (b <= 10)) && (a <= 10)) && (z == 0)) && (0 <= a)) && (a == x)) || ((((((((((0 <= y) && (y <= 9)) && (1 <= b)) && ((z + ((__int128) x * y)) == ((long long) a * b))) && ((y < 5) || (((y >= 0) ? (y % 2) : ((y % 2) + 2)) != 1))) && (a == z)) && (b <= 10)) && (x == ((long long) 2 * a))) && (a <= 10)) && (0 <= a))) || ((((((((((((x >= 0) ? (x / 2) : ((x / 2) - 1)) >= 0) ? (((x >= 0) ? (x / 2) : ((x / 2) - 1)) % 2) : ((((x >= 0) ? (x / 2) : ((x / 2) - 1)) % 2) + 2)) == 0) && (y <= 9)) && (1 <= b)) && ((y < 5) || (((y >= 0) ? (y % 2) : ((y % 2) + 2)) != 1))) && (((x >= 0) ? (x % 2) : ((x % 2) + 2)) == 0)) && (b <= 10)) && (a <= 10)) && (0 <= a))) || ((((((y == 0) && (1 <= b)) && (b <= 10)) && (a <= 10)) && (z == ((long long) a * b))) && (0 <= a))) || ((((((((y == ((b >= 0) ? (b / 2) : ((b / 2) - 1))) && (1 <= b)) && (b <= 10)) && (x == ((long long) 2 * a))) && (a <= 10)) && (z == 0)) && (0 <= a)) && (((b >= 0) ? (b % 2) : ((b % 2) + 2)) != 1))) || (((((((y <= 2) && (1 <= y)) && (1 <= b)) && ((z + ((__int128) x * y)) == ((long long) a * b))) && (b <= 10)) && (a <= 10)) && (0 <= a)))
RESULT: Ultimate proved your program to be correct!
[2024-11-23 22:43:58,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930efed6-e87c-4fcb-98d9-b24a1681dfa0/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