./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/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_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:29:25,306 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:29:25,374 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-23 18:29:25,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:29:25,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:29:25,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:29:25,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:29:25,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:29:25,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:29:25,404 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 18:29:25,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:29:25,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:29:25,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:29:25,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 18:29:25,405 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 18:29:25,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:29:25,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:29:25,405 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 18:29:25,406 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 18:29:25,407 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:29:25,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:29:25,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:29:25,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 18:29:25,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:29:25,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:29:25,409 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_fa53a60c-d53e-4e0a-a19c-e083d6a45973/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 ! overflow) )
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 -> d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f
[2024-11-23 18:29:25,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:29:25,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:29:25,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:29:25,689 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 18:29:25,689 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 18:29:25,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-simple/nested_2.c
[2024-11-23 18:29:28,753 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/data/ba8f750de/f3e3715d1d10405dac1455b0a7d8bb0d/FLAGe6c3eb76f
[2024-11-23 18:29:29,064 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 18:29:29,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/sv-benchmarks/c/loop-simple/nested_2.c
[2024-11-23 18:29:29,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/data/ba8f750de/f3e3715d1d10405dac1455b0a7d8bb0d/FLAGe6c3eb76f
[2024-11-23 18:29:29,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/data/ba8f750de/f3e3715d1d10405dac1455b0a7d8bb0d
[2024-11-23 18:29:29,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:29:29,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:29:29,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:29:29,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:29:29,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:29:29,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4c59c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29, skipping insertion in model container
[2024-11-23 18:29:29,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,114 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:29:29,284 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:29:29,296 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 18:29:29,311 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:29:29,327 INFO L204 MainTranslator]: Completed translation
[2024-11-23 18:29:29,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29 WrapperNode
[2024-11-23 18:29:29,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:29:29,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:29:29,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:29:29,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:29:29,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,367 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34
[2024-11-23 18:29:29,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:29:29,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:29:29,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:29:29,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:29:29,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,392 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 18:29:29,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,397 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:29:29,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:29:29,409 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:29:29,409 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:29:29,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (1/1) ...
[2024-11-23 18:29:29,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:29:29,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:29:29,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:29:29,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:29:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:29:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:29:29,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:29:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 18:29:29,522 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 18:29:29,524 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:29:29,666 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-23 18:29:29,666 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 18:29:29,688 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:29:29,688 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 18:29:29,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:29:29 BoogieIcfgContainer
[2024-11-23 18:29:29,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:29:29,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:29:29,693 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:29:29,699 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:29:29,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:29:29" (1/3) ...
[2024-11-23 18:29:29,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5959d36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:29:29, skipping insertion in model container
[2024-11-23 18:29:29,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:29:29" (2/3) ...
[2024-11-23 18:29:29,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5959d36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:29:29, skipping insertion in model container
[2024-11-23 18:29:29,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:29:29" (3/3) ...
[2024-11-23 18:29:29,703 INFO L128 eAbstractionObserver]: Analyzing ICFG nested_2.c
[2024-11-23 18:29:29,721 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:29:29,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nested_2.c that has 1 procedures, 19 locations, 1 initial locations, 2 loop locations, and 4 error locations.
[2024-11-23 18:29:29,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:29:29,809 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;@3498175d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:29:29,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-23 18:29:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-23 18:29:29,820 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:29,820 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-23 18:29:29,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:29,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:29,827 INFO L85 PathProgramCache]: Analyzing trace with hash 889601163, now seen corresponding path program 1 times
[2024-11-23 18:29:29,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:29,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998686147]
[2024-11-23 18:29:29,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:29,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:29:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:30,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998686147]
[2024-11-23 18:29:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998686147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:29:30,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:29:30,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 18:29:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940004079]
[2024-11-23 18:29:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:29:30,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:29:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:30,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:29:30,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,093 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:30,154 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions.
[2024-11-23 18:29:30,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:29:30,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-23 18:29:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:30,165 INFO L225 Difference]: With dead ends: 38
[2024-11-23 18:29:30,165 INFO L226 Difference]: Without dead ends: 16
[2024-11-23 18:29:30,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,173 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:30,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-23 18:29:30,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-11-23 18:29:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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 18:29:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2024-11-23 18:29:30,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6
[2024-11-23 18:29:30,212 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:30,213 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2024-11-23 18:29:30,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2024-11-23 18:29:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 18:29:30,217 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:30,217 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:29:30,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 18:29:30,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2134882287, now seen corresponding path program 1 times
[2024-11-23 18:29:30,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:30,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129013223]
[2024-11-23 18:29:30,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:29:30,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:30,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129013223]
[2024-11-23 18:29:30,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129013223] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 18:29:30,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650702657]
[2024-11-23 18:29:30,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:29:30,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:29:30,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 18:29:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 18:29:30,359 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:29:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:29:30,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:29:30,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650702657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:29:30,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 18:29:30,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4
[2024-11-23 18:29:30,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776112108]
[2024-11-23 18:29:30,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:29:30,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:29:30,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:30,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:29:30,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 18:29:30,408 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 18:29:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:30,434 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions.
[2024-11-23 18:29:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 18:29:30,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-23 18:29:30,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:30,435 INFO L225 Difference]: With dead ends: 16
[2024-11-23 18:29:30,436 INFO L226 Difference]: Without dead ends: 15
[2024-11-23 18:29:30,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 18:29:30,437 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:30,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-23 18:29:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-23 18:29:30,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-11-23 18:29:30,441 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9
[2024-11-23 18:29:30,441 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:30,441 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-11-23 18:29:30,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 18:29:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-11-23 18:29:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-23 18:29:30,442 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:30,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:29:30,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-23 18:29:30,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:30,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:30,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2134882218, now seen corresponding path program 1 times
[2024-11-23 18:29:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:30,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140893871]
[2024-11-23 18:29:30,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 18:29:30,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:30,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140893871]
[2024-11-23 18:29:30,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140893871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:29:30,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:29:30,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 18:29:30,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781692507]
[2024-11-23 18:29:30,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:29:30,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:29:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:30,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:29:30,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,712 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 18:29:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:30,744 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions.
[2024-11-23 18:29:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:29:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-23 18:29:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:30,746 INFO L225 Difference]: With dead ends: 28
[2024-11-23 18:29:30,746 INFO L226 Difference]: Without dead ends: 26
[2024-11-23 18:29:30,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,748 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:30,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:30,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-23 18:29:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25.
[2024-11-23 18:29:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions.
[2024-11-23 18:29:30,761 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9
[2024-11-23 18:29:30,761 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:30,761 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions.
[2024-11-23 18:29:30,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 18:29:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions.
[2024-11-23 18:29:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-23 18:29:30,763 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:30,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:29:30,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 18:29:30,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:30,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:30,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1756841402, now seen corresponding path program 1 times
[2024-11-23 18:29:30,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:30,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730537012]
[2024-11-23 18:29:30,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 18:29:30,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:30,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730537012]
[2024-11-23 18:29:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730537012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:29:30,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:29:30,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 18:29:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240532569]
[2024-11-23 18:29:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:29:30,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:29:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:30,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:29:30,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,830 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 18:29:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:30,846 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-11-23 18:29:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:29:30,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-23 18:29:30,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:30,851 INFO L225 Difference]: With dead ends: 25
[2024-11-23 18:29:30,851 INFO L226 Difference]: Without dead ends: 24
[2024-11-23 18:29:30,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:30,852 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:30,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:30,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-11-23 18:29:30,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20.
[2024-11-23 18:29:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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 18:29:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-11-23 18:29:30,861 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10
[2024-11-23 18:29:30,861 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:30,861 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-11-23 18:29:30,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 18:29:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-11-23 18:29:30,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-23 18:29:30,861 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:30,861 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-23 18:29:30,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 18:29:30,862 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:30,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash 471079600, now seen corresponding path program 1 times
[2024-11-23 18:29:30,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815262476]
[2024-11-23 18:29:30,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 18:29:30,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:30,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815262476]
[2024-11-23 18:29:30,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815262476] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 18:29:30,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500058140]
[2024-11-23 18:29:30,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:30,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:29:30,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:29:30,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 18:29:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:30,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 18:29:30,991 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:29:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 18:29:31,034 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 18:29:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 18:29:31,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500058140] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 18:29:31,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 18:29:31,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-11-23 18:29:31,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23540391]
[2024-11-23 18:29:31,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 18:29:31,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 18:29:31,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:31,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 18:29:31,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-23 18:29:31,074 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:31,125 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions.
[2024-11-23 18:29:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 18:29:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-11-23 18:29:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:31,126 INFO L225 Difference]: With dead ends: 50
[2024-11-23 18:29:31,126 INFO L226 Difference]: Without dead ends: 38
[2024-11-23 18:29:31,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-23 18:29:31,127 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:31,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-11-23 18:29:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2024-11-23 18:29:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 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 18:29:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions.
[2024-11-23 18:29:31,135 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 17
[2024-11-23 18:29:31,135 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:31,135 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions.
[2024-11-23 18:29:31,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions.
[2024-11-23 18:29:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-23 18:29:31,136 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:31,136 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-23 18:29:31,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 18:29:31,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:31,340 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:31,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash 427576956, now seen corresponding path program 2 times
[2024-11-23 18:29:31,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065915057]
[2024-11-23 18:29:31,341 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 18:29:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:31,373 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 18:29:31,374 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 18:29:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2024-11-23 18:29:31,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:31,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065915057]
[2024-11-23 18:29:31,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065915057] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 18:29:31,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705690436]
[2024-11-23 18:29:31,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 18:29:31,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:31,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:29:31,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:29:31,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 18:29:31,623 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 18:29:31,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 18:29:31,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 18:29:31,631 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:29:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 59 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2024-11-23 18:29:31,747 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 18:29:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 59 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2024-11-23 18:29:31,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705690436] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 18:29:31,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 18:29:31,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10
[2024-11-23 18:29:31,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317647026]
[2024-11-23 18:29:31,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 18:29:31,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 18:29:31,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:31,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 18:29:31,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:29:31,865 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:32,150 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions.
[2024-11-23 18:29:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-23 18:29:32,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35
[2024-11-23 18:29:32,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:32,153 INFO L225 Difference]: With dead ends: 70
[2024-11-23 18:29:32,153 INFO L226 Difference]: Without dead ends: 49
[2024-11-23 18:29:32,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462
[2024-11-23 18:29:32,158 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:32,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 18:29:32,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-23 18:29:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2024-11-23 18:29:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0625) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions.
[2024-11-23 18:29:32,173 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 35
[2024-11-23 18:29:32,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:32,173 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions.
[2024-11-23 18:29:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions.
[2024-11-23 18:29:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-11-23 18:29:32,174 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:29:32,174 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1]
[2024-11-23 18:29:32,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 18:29:32,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:29:32,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-23 18:29:32,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:29:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1395227202, now seen corresponding path program 1 times
[2024-11-23 18:29:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:29:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653825014]
[2024-11-23 18:29:32,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:29:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:29:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:29:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked.
[2024-11-23 18:29:32,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:29:32,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653825014]
[2024-11-23 18:29:32,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653825014] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:29:32,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:29:32,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 18:29:32,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50749544]
[2024-11-23 18:29:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:29:32,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:29:32,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:29:32,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:29:32,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:32,515 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:29:32,530 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions.
[2024-11-23 18:29:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:29:32,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48
[2024-11-23 18:29:32,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:29:32,532 INFO L225 Difference]: With dead ends: 49
[2024-11-23 18:29:32,532 INFO L226 Difference]: Without dead ends: 0
[2024-11-23 18:29:32,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:29:32,535 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:29:32,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:29:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-23 18:29:32,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-23 18:29:32,538 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 18:29:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-23 18:29:32,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48
[2024-11-23 18:29:32,539 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:29:32,539 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 18:29:32,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 18:29:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-23 18:29:32,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-23 18:29:32,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining)
[2024-11-23 18:29:32,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining)
[2024-11-23 18:29:32,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining)
[2024-11-23 18:29:32,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining)
[2024-11-23 18:29:32,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 18:29:32,548 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1]
[2024-11-23 18:29:32,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-23 18:29:32,739 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 18:29:32,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:29:32 BoogieIcfgContainer
[2024-11-23 18:29:32,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 18:29:32,757 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 18:29:32,757 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 18:29:32,757 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 18:29:32,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:29:29" (3/4) ...
[2024-11-23 18:29:32,760 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-23 18:29:32,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2024-11-23 18:29:32,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-23 18:29:32,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-23 18:29:32,771 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-23 18:29:32,856 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-23 18:29:32,857 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-23 18:29:32,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 18:29:32,857 INFO L158 Benchmark]: Toolchain (without parser) took 3767.62ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 77.2MB in the end (delta: 14.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB.
[2024-11-23 18:29:32,858 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:29:32,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.90ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 81.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:29:32,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:29:32,858 INFO L158 Benchmark]: Boogie Preprocessor took 38.44ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:29:32,859 INFO L158 Benchmark]: RCFGBuilder took 279.83ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 70.0MB in the end (delta: 8.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 18:29:32,859 INFO L158 Benchmark]: TraceAbstraction took 3063.94ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 82.0MB in the end (delta: -12.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB.
[2024-11-23 18:29:32,859 INFO L158 Benchmark]: Witness Printer took 99.78ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 77.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:29:32,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 237.90ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 81.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.57ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.44ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 279.83ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 70.0MB in the end (delta: 8.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 3063.94ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 82.0MB in the end (delta: -12.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB.
* Witness Printer took 99.78ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 77.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 21]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 21]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 20]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 20]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 65 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 102 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=6, InterpolantAutomatonStates: 38, 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, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 235 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 471/580 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
4 specifications checked. All of them hold
- InvariantResult [Line: 21]: Loop Invariant
Derived loop invariant: ((((((a <= 5) && (1 <= b)) && (1 <= a)) || ((1 <= b) && (a == 0))) || ((b == 0) && (a == 0))) || (((b == 0) && (a <= 5)) && (1 <= a)))
- InvariantResult [Line: 20]: Loop Invariant
Derived loop invariant: (((1 <= b) && (1 <= a)) || ((1 <= b) && (a == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-11-23 18:29:32,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa53a60c-d53e-4e0a-a19c-e083d6a45973/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