./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 8fc3dc66
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 985b50a0b8eeadb0f849d937466c4ec1e5f58df88650cbc5b820e0f210728055
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-17 01:23:14,022 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-17 01:23:14,084 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-17 01:23:14,089 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-17 01:23:14,089 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-17 01:23:14,121 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-17 01:23:14,122 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-17 01:23:14,122 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-17 01:23:14,122 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-17 01:23:14,123 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-17 01:23:14,123 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-17 01:23:14,123 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-17 01:23:14,124 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-17 01:23:14,124 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-17 01:23:14,124 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-17 01:23:14,124 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-17 01:23:14,125 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-17 01:23:14,126 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-17 01:23:14,126 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-17 01:23:14,127 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-17 01:23:14,127 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-17 01:23:14,127 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-17 01:23:14,127 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-17 01:23:14,127 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-17 01:23:14,128 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-17 01:23:14,128 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
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 -> 985b50a0b8eeadb0f849d937466c4ec1e5f58df88650cbc5b820e0f210728055
[2025-03-17 01:23:14,434 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-17 01:23:14,443 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-17 01:23:14,445 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-17 01:23:14,446 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-17 01:23:14,447 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-17 01:23:14,449 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i
[2025-03-17 01:23:15,846 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73072719c/e513c66a27764ceabc5fad6ae180c1cc/FLAG778a5dc19
[2025-03-17 01:23:16,124 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-17 01:23:16,126 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i
[2025-03-17 01:23:16,137 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73072719c/e513c66a27764ceabc5fad6ae180c1cc/FLAG778a5dc19
[2025-03-17 01:23:16,162 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73072719c/e513c66a27764ceabc5fad6ae180c1cc
[2025-03-17 01:23:16,164 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-17 01:23:16,165 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-17 01:23:16,169 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-17 01:23:16,169 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-17 01:23:16,177 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-17 01:23:16,178 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,179 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19341de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16, skipping insertion in model container
[2025-03-17 01:23:16,179 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,204 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-17 01:23:16,333 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i[919,932]
[2025-03-17 01:23:16,398 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 01:23:16,413 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-17 01:23:16,423 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i[919,932]
[2025-03-17 01:23:16,449 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 01:23:16,463 INFO  L204         MainTranslator]: Completed translation
[2025-03-17 01:23:16,464 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16 WrapperNode
[2025-03-17 01:23:16,465 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-17 01:23:16,466 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-17 01:23:16,466 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-17 01:23:16,466 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-17 01:23:16,470 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,485 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,538 INFO  L138                Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218
[2025-03-17 01:23:16,539 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-17 01:23:16,539 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-17 01:23:16,539 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-17 01:23:16,539 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-17 01:23:16,549 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,549 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,556 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,577 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].
[2025-03-17 01:23:16,578 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,578 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,591 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,596 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,597 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,599 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,602 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-17 01:23:16,603 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-17 01:23:16,604 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-17 01:23:16,604 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-17 01:23:16,605 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (1/1) ...
[2025-03-17 01:23:16,608 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-17 01:23:16,619 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 01:23:16,631 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-17 01:23:16,634 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-17 01:23:16,653 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-17 01:23:16,653 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-17 01:23:16,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-17 01:23:16,653 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-17 01:23:16,653 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-17 01:23:16,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-17 01:23:16,715 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-17 01:23:16,718 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-17 01:23:17,151 INFO  L1322  $ProcedureCfgBuilder]: dead code at ProgramPoint L171: havoc property_#t~bitwise20#1;havoc property_#t~bitwise21#1;havoc property_#t~short22#1;
[2025-03-17 01:23:17,173 INFO  L?                        ?]: Removed 11 outVars from TransFormulas that were not future-live.
[2025-03-17 01:23:17,173 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-17 01:23:17,199 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-17 01:23:17,199 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-17 01:23:17,199 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 01:23:17 BoogieIcfgContainer
[2025-03-17 01:23:17,199 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-17 01:23:17,204 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-17 01:23:17,205 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-17 01:23:17,209 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-17 01:23:17,210 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 01:23:16" (1/3) ...
[2025-03-17 01:23:17,211 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86c1ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 01:23:17, skipping insertion in model container
[2025-03-17 01:23:17,211 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 01:23:16" (2/3) ...
[2025-03-17 01:23:17,211 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86c1ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 01:23:17, skipping insertion in model container
[2025-03-17 01:23:17,211 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 01:23:17" (3/3) ...
[2025-03-17 01:23:17,213 INFO  L128   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i
[2025-03-17 01:23:17,228 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-17 01:23:17,230 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i that has 2 procedures, 86 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-17 01:23:17,280 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-17 01:23:17,290 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;@2569a191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-17 01:23:17,291 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-17 01:23:17,295 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 60 states have (on average 1.5) internal successors, (90), 61 states have internal predecessors, (90), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2025-03-17 01:23:17,307 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2025-03-17 01:23:17,307 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:23:17,308 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:23:17,308 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:23:17,315 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:23:17,315 INFO  L85        PathProgramCache]: Analyzing trace with hash -194189702, now seen corresponding path program 1 times
[2025-03-17 01:23:17,322 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:23:17,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242724875]
[2025-03-17 01:23:17,325 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:17,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:23:17,416 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes.
[2025-03-17 01:23:17,435 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements.
[2025-03-17 01:23:17,435 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:17,435 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:23:17,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked.
[2025-03-17 01:23:17,592 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 01:23:17,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242724875]
[2025-03-17 01:23:17,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242724875] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 01:23:17,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333219147]
[2025-03-17 01:23:17,593 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:17,593 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 01:23:17,593 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 01:23:17,596 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 01:23:17,603 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-17 01:23:17,694 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes.
[2025-03-17 01:23:17,785 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements.
[2025-03-17 01:23:17,785 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:17,785 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:23:17,788 INFO  L256         TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-17 01:23:17,799 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 01:23:17,826 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked.
[2025-03-17 01:23:17,826 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-17 01:23:17,826 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333219147] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 01:23:17,826 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-17 01:23:17,827 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-17 01:23:17,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466376369]
[2025-03-17 01:23:17,830 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 01:23:17,834 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-17 01:23:17,835 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 01:23:17,854 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-17 01:23:17,855 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-17 01:23:17,860 INFO  L87              Difference]: Start difference. First operand  has 86 states, 60 states have (on average 1.5) internal successors, (90), 61 states have internal predecessors, (90), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23)
[2025-03-17 01:23:17,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 01:23:17,895 INFO  L93              Difference]: Finished difference Result 169 states and 293 transitions.
[2025-03-17 01:23:17,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-17 01:23:17,897 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 150
[2025-03-17 01:23:17,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 01:23:17,903 INFO  L225             Difference]: With dead ends: 169
[2025-03-17 01:23:17,903 INFO  L226             Difference]: Without dead ends: 84
[2025-03-17 01:23:17,908 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-17 01:23:17,911 INFO  L435           NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-17 01:23:17,912 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-17 01:23:17,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2025-03-17 01:23:17,941 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2025-03-17 01:23:17,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 59 states have internal predecessors, (85), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2025-03-17 01:23:17,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 131 transitions.
[2025-03-17 01:23:17,950 INFO  L78                 Accepts]: Start accepts. Automaton has 84 states and 131 transitions. Word has length 150
[2025-03-17 01:23:17,950 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 01:23:17,950 INFO  L471      AbstractCegarLoop]: Abstraction has 84 states and 131 transitions.
[2025-03-17 01:23:17,951 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23)
[2025-03-17 01:23:17,951 INFO  L276                IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions.
[2025-03-17 01:23:17,954 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2025-03-17 01:23:17,955 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:23:17,955 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:23:17,963 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-17 01:23:18,158 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-03-17 01:23:18,158 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:23:18,159 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:23:18,159 INFO  L85        PathProgramCache]: Analyzing trace with hash -2082645108, now seen corresponding path program 1 times
[2025-03-17 01:23:18,159 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:23:18,159 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139788839]
[2025-03-17 01:23:18,159 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:18,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:23:18,180 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes.
[2025-03-17 01:23:18,385 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements.
[2025-03-17 01:23:18,385 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:18,385 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:23:39,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2025-03-17 01:23:39,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 01:23:39,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139788839]
[2025-03-17 01:23:39,252 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139788839] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 01:23:39,252 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 01:23:39,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-03-17 01:23:39,252 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275183128]
[2025-03-17 01:23:39,252 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 01:23:39,253 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-17 01:23:39,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 01:23:39,254 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-17 01:23:39,254 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-03-17 01:23:39,254 INFO  L87              Difference]: Start difference. First operand 84 states and 131 transitions. Second operand  has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:23:41,076 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2025-03-17 01:23:43,513 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2025-03-17 01:23:46,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 01:23:46,126 INFO  L93              Difference]: Finished difference Result 285 states and 437 transitions.
[2025-03-17 01:23:46,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-03-17 01:23:46,127 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 151
[2025-03-17 01:23:46,127 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 01:23:46,129 INFO  L225             Difference]: With dead ends: 285
[2025-03-17 01:23:46,129 INFO  L226             Difference]: Without dead ends: 202
[2025-03-17 01:23:46,129 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2025-03-17 01:23:46,130 INFO  L435           NwaCegarLoop]: 123 mSDtfsCounter, 222 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2025-03-17 01:23:46,130 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 475 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2025-03-17 01:23:46,131 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2025-03-17 01:23:46,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 162.
[2025-03-17 01:23:46,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162 states, 127 states have (on average 1.5039370078740157) internal successors, (191), 128 states have internal predecessors, (191), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31)
[2025-03-17 01:23:46,148 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 253 transitions.
[2025-03-17 01:23:46,150 INFO  L78                 Accepts]: Start accepts. Automaton has 162 states and 253 transitions. Word has length 151
[2025-03-17 01:23:46,151 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 01:23:46,151 INFO  L471      AbstractCegarLoop]: Abstraction has 162 states and 253 transitions.
[2025-03-17 01:23:46,151 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:23:46,151 INFO  L276                IsEmpty]: Start isEmpty. Operand 162 states and 253 transitions.
[2025-03-17 01:23:46,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2025-03-17 01:23:46,152 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:23:46,153 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:23:46,153 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-17 01:23:46,153 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:23:46,153 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:23:46,153 INFO  L85        PathProgramCache]: Analyzing trace with hash -1871294195, now seen corresponding path program 1 times
[2025-03-17 01:23:46,154 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:23:46,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549600551]
[2025-03-17 01:23:46,154 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:46,154 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:23:46,167 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes.
[2025-03-17 01:23:46,231 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements.
[2025-03-17 01:23:46,231 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:46,231 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:23:46,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked.
[2025-03-17 01:23:46,813 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 01:23:46,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549600551]
[2025-03-17 01:23:46,813 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549600551] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 01:23:46,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915140563]
[2025-03-17 01:23:46,813 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:46,813 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 01:23:46,813 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 01:23:46,815 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 01:23:46,817 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-17 01:23:46,863 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes.
[2025-03-17 01:23:47,007 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements.
[2025-03-17 01:23:47,007 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:47,007 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:23:47,009 INFO  L256         TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 20 conjuncts are in the unsatisfiable core
[2025-03-17 01:23:47,016 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 01:23:47,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 686 proven. 96 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked.
[2025-03-17 01:23:47,771 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-17 01:23:48,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 99 refuted. 0 times theorem prover too weak. 883 trivial. 0 not checked.
[2025-03-17 01:23:48,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915140563] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-17 01:23:48,535 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-17 01:23:48,535 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 32
[2025-03-17 01:23:48,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38335922]
[2025-03-17 01:23:48,536 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-17 01:23:48,537 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 32 states
[2025-03-17 01:23:48,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 01:23:48,538 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants.
[2025-03-17 01:23:48,539 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992
[2025-03-17 01:23:48,539 INFO  L87              Difference]: Start difference. First operand 162 states and 253 transitions. Second operand  has 32 states, 32 states have (on average 3.25) internal successors, (104), 32 states have internal predecessors, (104), 8 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58)
[2025-03-17 01:23:53,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 01:23:53,099 INFO  L93              Difference]: Finished difference Result 1265 states and 1851 transitions.
[2025-03-17 01:23:53,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. 
[2025-03-17 01:23:53,102 INFO  L78                 Accepts]: Start accepts. Automaton has  has 32 states, 32 states have (on average 3.25) internal successors, (104), 32 states have internal predecessors, (104), 8 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58) Word has length 151
[2025-03-17 01:23:53,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 01:23:53,116 INFO  L225             Difference]: With dead ends: 1265
[2025-03-17 01:23:53,116 INFO  L226             Difference]: Without dead ends: 1104
[2025-03-17 01:23:53,123 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 296 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2041 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2295, Invalid=6261, Unknown=0, NotChecked=0, Total=8556
[2025-03-17 01:23:53,126 INFO  L435           NwaCegarLoop]: 82 mSDtfsCounter, 1408 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-03-17 01:23:53,126 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 950 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-03-17 01:23:53,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1104 states.
[2025-03-17 01:23:53,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 181.
[2025-03-17 01:23:53,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 152 states have (on average 1.5263157894736843) internal successors, (232), 152 states have internal predecessors, (232), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2025-03-17 01:23:53,171 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 278 transitions.
[2025-03-17 01:23:53,173 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 278 transitions. Word has length 151
[2025-03-17 01:23:53,173 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 01:23:53,173 INFO  L471      AbstractCegarLoop]: Abstraction has 181 states and 278 transitions.
[2025-03-17 01:23:53,173 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 32 states, 32 states have (on average 3.25) internal successors, (104), 32 states have internal predecessors, (104), 8 states have call successors, (56), 4 states have call predecessors, (56), 8 states have return successors, (58), 8 states have call predecessors, (58), 8 states have call successors, (58)
[2025-03-17 01:23:53,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 278 transitions.
[2025-03-17 01:23:53,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2025-03-17 01:23:53,175 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:23:53,175 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:23:53,186 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-17 01:23:53,376 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2025-03-17 01:23:53,376 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:23:53,376 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:23:53,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 2080475303, now seen corresponding path program 1 times
[2025-03-17 01:23:53,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:23:53,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053198129]
[2025-03-17 01:23:53,377 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:23:53,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:23:53,384 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes.
[2025-03-17 01:23:53,449 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements.
[2025-03-17 01:23:53,449 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:23:53,449 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:24:02,853 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2025-03-17 01:24:02,853 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 01:24:02,854 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053198129]
[2025-03-17 01:24:02,854 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053198129] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 01:24:02,854 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 01:24:02,854 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-03-17 01:24:02,854 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171814981]
[2025-03-17 01:24:02,854 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 01:24:02,854 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-03-17 01:24:02,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 01:24:02,855 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-03-17 01:24:02,855 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2025-03-17 01:24:02,855 INFO  L87              Difference]: Start difference. First operand 181 states and 278 transitions. Second operand  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:24:04,455 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 01:24:04,456 INFO  L93              Difference]: Finished difference Result 547 states and 827 transitions.
[2025-03-17 01:24:04,457 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-17 01:24:04,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 152
[2025-03-17 01:24:04,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 01:24:04,460 INFO  L225             Difference]: With dead ends: 547
[2025-03-17 01:24:04,461 INFO  L226             Difference]: Without dead ends: 367
[2025-03-17 01:24:04,462 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72
[2025-03-17 01:24:04,463 INFO  L435           NwaCegarLoop]: 146 mSDtfsCounter, 226 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2025-03-17 01:24:04,465 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 583 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2025-03-17 01:24:04,465 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 367 states.
[2025-03-17 01:24:04,483 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 202.
[2025-03-17 01:24:04,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 202 states, 173 states have (on average 1.5144508670520231) internal successors, (262), 173 states have internal predecessors, (262), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2025-03-17 01:24:04,485 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 308 transitions.
[2025-03-17 01:24:04,485 INFO  L78                 Accepts]: Start accepts. Automaton has 202 states and 308 transitions. Word has length 152
[2025-03-17 01:24:04,486 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 01:24:04,486 INFO  L471      AbstractCegarLoop]: Abstraction has 202 states and 308 transitions.
[2025-03-17 01:24:04,486 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:24:04,486 INFO  L276                IsEmpty]: Start isEmpty. Operand 202 states and 308 transitions.
[2025-03-17 01:24:04,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2025-03-17 01:24:04,488 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:24:04,488 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:24:04,488 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-17 01:24:04,488 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:24:04,488 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:24:04,488 INFO  L85        PathProgramCache]: Analyzing trace with hash 1671651078, now seen corresponding path program 1 times
[2025-03-17 01:24:04,489 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:24:04,489 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936115801]
[2025-03-17 01:24:04,489 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:24:04,489 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:24:04,497 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes.
[2025-03-17 01:24:04,534 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements.
[2025-03-17 01:24:04,534 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:24:04,535 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:24:17,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2025-03-17 01:24:17,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 01:24:17,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936115801]
[2025-03-17 01:24:17,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936115801] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 01:24:17,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 01:24:17,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-03-17 01:24:17,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687126922]
[2025-03-17 01:24:17,365 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 01:24:17,365 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-03-17 01:24:17,365 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 01:24:17,366 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-03-17 01:24:17,366 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2025-03-17 01:24:17,366 INFO  L87              Difference]: Start difference. First operand 202 states and 308 transitions. Second operand  has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:24:24,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 01:24:24,914 INFO  L93              Difference]: Finished difference Result 603 states and 893 transitions.
[2025-03-17 01:24:24,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2025-03-17 01:24:24,914 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 152
[2025-03-17 01:24:24,915 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 01:24:24,916 INFO  L225             Difference]: With dead ends: 603
[2025-03-17 01:24:24,916 INFO  L226             Difference]: Without dead ends: 402
[2025-03-17 01:24:24,917 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182
[2025-03-17 01:24:24,917 INFO  L435           NwaCegarLoop]: 163 mSDtfsCounter, 297 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2025-03-17 01:24:24,917 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 679 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2025-03-17 01:24:24,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 402 states.
[2025-03-17 01:24:24,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 222.
[2025-03-17 01:24:24,937 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 222 states, 193 states have (on average 1.5336787564766838) internal successors, (296), 193 states have internal predecessors, (296), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2025-03-17 01:24:24,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 342 transitions.
[2025-03-17 01:24:24,938 INFO  L78                 Accepts]: Start accepts. Automaton has 222 states and 342 transitions. Word has length 152
[2025-03-17 01:24:24,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 01:24:24,939 INFO  L471      AbstractCegarLoop]: Abstraction has 222 states and 342 transitions.
[2025-03-17 01:24:24,939 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2025-03-17 01:24:24,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 222 states and 342 transitions.
[2025-03-17 01:24:24,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2025-03-17 01:24:24,941 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 01:24:24,941 INFO  L218           NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 01:24:24,941 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-17 01:24:24,941 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 01:24:24,941 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 01:24:24,941 INFO  L85        PathProgramCache]: Analyzing trace with hash -1679791450, now seen corresponding path program 1 times
[2025-03-17 01:24:24,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 01:24:24,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898414419]
[2025-03-17 01:24:24,942 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:24:24,942 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 01:24:24,948 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes.
[2025-03-17 01:24:25,009 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements.
[2025-03-17 01:24:25,012 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:24:25,012 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2025-03-17 01:24:25,015 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336765220]
[2025-03-17 01:24:25,016 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 01:24:25,016 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 01:24:25,016 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 01:24:25,018 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 01:24:25,020 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-17 01:24:25,065 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes.
[2025-03-17 01:24:25,214 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements.
[2025-03-17 01:24:25,214 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 01:24:25,214 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 01:24:25,216 INFO  L256         TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 30 conjuncts are in the unsatisfiable core
[2025-03-17 01:24:25,219 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 01:24:32,220 WARN  L286               SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2025-03-17 01:24:32,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 643 proven. 147 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2025-03-17 01:24:32,371 INFO  L312         TraceCheckSpWp]: Computing backward predicates...