./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-45.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-ps-ci_file-45.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 bcba96e12d465ba8f2cd356f8297b415f9e65918ebe10de52c572e6fb77ffa7c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 21:18:07,967 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 21:18:08,038 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 21:18:08,042 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 21:18:08,043 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 21:18:08,084 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 21:18:08,085 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 21:18:08,085 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 21:18:08,086 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 21:18:08,087 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 21:18:08,087 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 21:18:08,088 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 21:18:08,088 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 21:18:08,088 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 21:18:08,089 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 21:18:08,091 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 21:18:08,092 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 21:18:08,094 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 21:18:08,094 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 21:18:08,095 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 21:18:08,095 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 21:18:08,095 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 21:18:08,095 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 21:18:08,096 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 21:18:08,096 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 21:18:08,096 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 21:18:08,096 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 21:18:08,097 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 21:18:08,097 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 21:18:08,097 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 21:18:08,097 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 21:18:08,097 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 21:18:08,098 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 21:18:08,098 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 21:18:08,098 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 21:18:08,098 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 21:18:08,098 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 21:18:08,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 21:18:08,099 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 21:18:08,099 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 21:18:08,101 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 21:18:08,102 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 21:18:08,102 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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 -> bcba96e12d465ba8f2cd356f8297b415f9e65918ebe10de52c572e6fb77ffa7c
[2024-11-18 21:18:08,381 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 21:18:08,407 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 21:18:08,412 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 21:18:08,414 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 21:18:08,415 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 21:18:08,417 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-45.i
[2024-11-18 21:18:09,884 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 21:18:10,083 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 21:18:10,084 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-45.i
[2024-11-18 21:18:10,096 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c3b8fc2/2a979c6ada97462c8356308a984cc466/FLAGccf501d25
[2024-11-18 21:18:10,453 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c3b8fc2/2a979c6ada97462c8356308a984cc466
[2024-11-18 21:18:10,457 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 21:18:10,459 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 21:18:10,463 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 21:18:10,463 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 21:18:10,469 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 21:18:10,469 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,470 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3326a8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10, skipping insertion in model container
[2024-11-18 21:18:10,471 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,507 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 21:18:10,699 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-ps-ci_file-45.i[919,932]
[2024-11-18 21:18:10,796 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 21:18:10,812 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 21:18:10,824 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-ps-ci_file-45.i[919,932]
[2024-11-18 21:18:10,858 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 21:18:10,885 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 21:18:10,886 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10 WrapperNode
[2024-11-18 21:18:10,886 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 21:18:10,887 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 21:18:10,887 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 21:18:10,887 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 21:18:10,895 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,905 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,974 INFO  L138                Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192
[2024-11-18 21:18:10,975 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 21:18:10,976 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 21:18:10,976 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 21:18:10,977 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 21:18:10,993 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,996 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:10,999 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,032 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].
[2024-11-18 21:18:11,036 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,036 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,047 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,051 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,054 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,056 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,060 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 21:18:11,061 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 21:18:11,061 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 21:18:11,061 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 21:18:11,066 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (1/1) ...
[2024-11-18 21:18:11,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 21:18:11,093 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 21:18:11,111 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)
[2024-11-18 21:18:11,117 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
[2024-11-18 21:18:11,163 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 21:18:11,163 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 21:18:11,163 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 21:18:11,164 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 21:18:11,164 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 21:18:11,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 21:18:11,257 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 21:18:11,260 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 21:18:11,708 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-18 21:18:11,708 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 21:18:11,727 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 21:18:11,728 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 21:18:11,728 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:18:11 BoogieIcfgContainer
[2024-11-18 21:18:11,728 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 21:18:11,731 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 21:18:11,731 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 21:18:11,734 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 21:18:11,734 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:18:10" (1/3) ...
[2024-11-18 21:18:11,735 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b8186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:18:11, skipping insertion in model container
[2024-11-18 21:18:11,735 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:18:10" (2/3) ...
[2024-11-18 21:18:11,735 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b8186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:18:11, skipping insertion in model container
[2024-11-18 21:18:11,736 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:18:11" (3/3) ...
[2024-11-18 21:18:11,737 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-45.i
[2024-11-18 21:18:11,750 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 21:18:11,750 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 21:18:11,805 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 21:18:11,814 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;@186e9981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 21:18:11,814 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 21:18:11,819 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 85 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-18 21:18:11,831 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2024-11-18 21:18:11,831 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:11,832 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:11,833 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:11,838 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:11,838 INFO  L85        PathProgramCache]: Analyzing trace with hash 1106573422, now seen corresponding path program 1 times
[2024-11-18 21:18:11,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:11,847 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047618598]
[2024-11-18 21:18:11,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:11,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:11,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:12,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked.
[2024-11-18 21:18:12,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:12,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047618598]
[2024-11-18 21:18:12,279 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047618598] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 21:18:12,279 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538995546]
[2024-11-18 21:18:12,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:12,279 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 21:18:12,280 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 21:18:12,281 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)
[2024-11-18 21:18:12,282 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 21:18:12,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:12,505 INFO  L255         TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 21:18:12,541 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 21:18:12,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked.
[2024-11-18 21:18:12,587 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 21:18:12,588 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [538995546] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:12,588 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 21:18:12,588 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 21:18:12,596 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801434081]
[2024-11-18 21:18:12,596 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:12,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 21:18:12,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:12,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 21:18:12,662 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 21:18:12,664 INFO  L87              Difference]: Start difference. First operand  has 85 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-18 21:18:12,692 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:12,693 INFO  L93              Difference]: Finished difference Result 163 states and 284 transitions.
[2024-11-18 21:18:12,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 21:18:12,695 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 173
[2024-11-18 21:18:12,695 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:12,701 INFO  L225             Difference]: With dead ends: 163
[2024-11-18 21:18:12,701 INFO  L226             Difference]: Without dead ends: 81
[2024-11-18 21:18:12,705 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 21:18:12,708 INFO  L432           NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:12,708 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 21:18:12,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-18 21:18:12,758 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81.
[2024-11-18 21:18:12,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 53 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-18 21:18:12,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 124 transitions.
[2024-11-18 21:18:12,770 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 124 transitions. Word has length 173
[2024-11-18 21:18:12,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:12,771 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 124 transitions.
[2024-11-18 21:18:12,771 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26)
[2024-11-18 21:18:12,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions.
[2024-11-18 21:18:12,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2024-11-18 21:18:12,776 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:12,777 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:12,796 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 21:18:12,978 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
[2024-11-18 21:18:12,979 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:12,979 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:12,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -1916054174, now seen corresponding path program 1 times
[2024-11-18 21:18:12,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:12,980 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424080118]
[2024-11-18 21:18:12,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:12,980 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:13,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:13,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:13,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:13,288 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424080118]
[2024-11-18 21:18:13,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424080118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:13,290 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:13,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 21:18:13,290 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062751401]
[2024-11-18 21:18:13,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:13,291 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 21:18:13,291 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:13,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 21:18:13,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 21:18:13,295 INFO  L87              Difference]: Start difference. First operand 81 states and 124 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:13,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:13,358 INFO  L93              Difference]: Finished difference Result 188 states and 289 transitions.
[2024-11-18 21:18:13,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 21:18:13,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173
[2024-11-18 21:18:13,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:13,365 INFO  L225             Difference]: With dead ends: 188
[2024-11-18 21:18:13,365 INFO  L226             Difference]: Without dead ends: 110
[2024-11-18 21:18:13,369 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 21:18:13,371 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 37 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:13,372 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 236 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 21:18:13,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2024-11-18 21:18:13,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 90.
[2024-11-18 21:18:13,388 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-18 21:18:13,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 139 transitions.
[2024-11-18 21:18:13,390 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 139 transitions. Word has length 173
[2024-11-18 21:18:13,396 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:13,398 INFO  L471      AbstractCegarLoop]: Abstraction has 90 states and 139 transitions.
[2024-11-18 21:18:13,398 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:13,398 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 139 transitions.
[2024-11-18 21:18:13,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2024-11-18 21:18:13,401 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:13,401 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:13,402 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 21:18:13,402 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:13,402 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:13,403 INFO  L85        PathProgramCache]: Analyzing trace with hash 1792107108, now seen corresponding path program 1 times
[2024-11-18 21:18:13,403 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:13,403 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178608580]
[2024-11-18 21:18:13,403 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:13,404 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:13,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:13,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:13,627 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:13,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178608580]
[2024-11-18 21:18:13,627 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178608580] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:13,627 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:13,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 21:18:13,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511386340]
[2024-11-18 21:18:13,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:13,629 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 21:18:13,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:13,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 21:18:13,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 21:18:13,630 INFO  L87              Difference]: Start difference. First operand 90 states and 139 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:13,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:13,700 INFO  L93              Difference]: Finished difference Result 261 states and 405 transitions.
[2024-11-18 21:18:13,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 21:18:13,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173
[2024-11-18 21:18:13,704 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:13,706 INFO  L225             Difference]: With dead ends: 261
[2024-11-18 21:18:13,708 INFO  L226             Difference]: Without dead ends: 174
[2024-11-18 21:18:13,710 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 21:18:13,711 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 113 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:13,711 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 228 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 21:18:13,712 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 174 states.
[2024-11-18 21:18:13,733 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172.
[2024-11-18 21:18:13,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 172 states, 117 states have (on average 1.376068376068376) internal successors, (161), 117 states have internal predecessors, (161), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-18 21:18:13,736 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions.
[2024-11-18 21:18:13,736 INFO  L78                 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 173
[2024-11-18 21:18:13,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:13,737 INFO  L471      AbstractCegarLoop]: Abstraction has 172 states and 265 transitions.
[2024-11-18 21:18:13,738 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:13,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions.
[2024-11-18 21:18:13,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-18 21:18:13,741 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:13,741 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:13,741 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 21:18:13,741 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:13,742 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:13,742 INFO  L85        PathProgramCache]: Analyzing trace with hash -684742561, now seen corresponding path program 1 times
[2024-11-18 21:18:13,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:13,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420785435]
[2024-11-18 21:18:13,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:13,745 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:13,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:28,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:28,929 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:28,929 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420785435]
[2024-11-18 21:18:28,929 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420785435] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:28,929 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:28,930 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 21:18:28,930 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710771557]
[2024-11-18 21:18:28,930 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:28,931 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 21:18:28,931 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:28,932 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 21:18:28,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:28,932 INFO  L87              Difference]: Start difference. First operand 172 states and 265 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:29,308 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:29,309 INFO  L93              Difference]: Finished difference Result 464 states and 694 transitions.
[2024-11-18 21:18:29,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 21:18:29,310 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 174
[2024-11-18 21:18:29,311 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:29,319 INFO  L225             Difference]: With dead ends: 464
[2024-11-18 21:18:29,319 INFO  L226             Difference]: Without dead ends: 295
[2024-11-18 21:18:29,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:29,324 INFO  L432           NwaCegarLoop]: 164 mSDtfsCounter, 82 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:29,325 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 297 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 21:18:29,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2024-11-18 21:18:29,388 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 244.
[2024-11-18 21:18:29,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 244 states, 171 states have (on average 1.345029239766082) internal successors, (230), 173 states have internal predecessors, (230), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68)
[2024-11-18 21:18:29,393 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 366 transitions.
[2024-11-18 21:18:29,394 INFO  L78                 Accepts]: Start accepts. Automaton has 244 states and 366 transitions. Word has length 174
[2024-11-18 21:18:29,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:29,395 INFO  L471      AbstractCegarLoop]: Abstraction has 244 states and 366 transitions.
[2024-11-18 21:18:29,395 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:29,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 244 states and 366 transitions.
[2024-11-18 21:18:29,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-18 21:18:29,397 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:29,398 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:29,398 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 21:18:29,398 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:29,399 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:29,399 INFO  L85        PathProgramCache]: Analyzing trace with hash -1494089187, now seen corresponding path program 1 times
[2024-11-18 21:18:29,399 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:29,399 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377030396]
[2024-11-18 21:18:29,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:29,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:29,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:31,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:31,324 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:31,324 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377030396]
[2024-11-18 21:18:31,325 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377030396] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:31,325 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:31,325 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 21:18:31,325 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532112033]
[2024-11-18 21:18:31,325 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:31,326 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 21:18:31,326 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:31,327 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 21:18:31,327 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:31,327 INFO  L87              Difference]: Start difference. First operand 244 states and 366 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:31,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:31,667 INFO  L93              Difference]: Finished difference Result 536 states and 794 transitions.
[2024-11-18 21:18:31,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 21:18:31,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 174
[2024-11-18 21:18:31,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:31,672 INFO  L225             Difference]: With dead ends: 536
[2024-11-18 21:18:31,672 INFO  L226             Difference]: Without dead ends: 295
[2024-11-18 21:18:31,673 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:31,674 INFO  L432           NwaCegarLoop]: 175 mSDtfsCounter, 77 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:31,674 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 329 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 21:18:31,677 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2024-11-18 21:18:31,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 239.
[2024-11-18 21:18:31,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 239 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 168 states have internal predecessors, (223), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68)
[2024-11-18 21:18:31,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 359 transitions.
[2024-11-18 21:18:31,720 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 359 transitions. Word has length 174
[2024-11-18 21:18:31,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:31,722 INFO  L471      AbstractCegarLoop]: Abstraction has 239 states and 359 transitions.
[2024-11-18 21:18:31,722 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:31,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 359 transitions.
[2024-11-18 21:18:31,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-18 21:18:31,724 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:31,724 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:31,725 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 21:18:31,725 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:31,726 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:31,726 INFO  L85        PathProgramCache]: Analyzing trace with hash -1964606239, now seen corresponding path program 1 times
[2024-11-18 21:18:31,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:31,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493417260]
[2024-11-18 21:18:31,727 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:31,727 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:31,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:39,888 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:39,888 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:39,888 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493417260]
[2024-11-18 21:18:39,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493417260] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:39,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:39,889 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 21:18:39,889 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829534257]
[2024-11-18 21:18:39,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:39,890 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 21:18:39,890 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:39,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 21:18:39,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:39,891 INFO  L87              Difference]: Start difference. First operand 239 states and 359 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:40,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:40,241 INFO  L93              Difference]: Finished difference Result 558 states and 824 transitions.
[2024-11-18 21:18:40,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 21:18:40,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 174
[2024-11-18 21:18:40,242 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:40,246 INFO  L225             Difference]: With dead ends: 558
[2024-11-18 21:18:40,246 INFO  L226             Difference]: Without dead ends: 322
[2024-11-18 21:18:40,247 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:40,248 INFO  L432           NwaCegarLoop]: 189 mSDtfsCounter, 87 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:40,248 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 317 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 21:18:40,249 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 322 states.
[2024-11-18 21:18:40,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 314.
[2024-11-18 21:18:40,311 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 314 states, 209 states have (on average 1.2870813397129186) internal successors, (269), 214 states have internal predecessors, (269), 96 states have call successors, (96), 8 states have call predecessors, (96), 8 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96)
[2024-11-18 21:18:40,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 461 transitions.
[2024-11-18 21:18:40,314 INFO  L78                 Accepts]: Start accepts. Automaton has 314 states and 461 transitions. Word has length 174
[2024-11-18 21:18:40,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:40,315 INFO  L471      AbstractCegarLoop]: Abstraction has 314 states and 461 transitions.
[2024-11-18 21:18:40,315 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:40,315 INFO  L276                IsEmpty]: Start isEmpty. Operand 314 states and 461 transitions.
[2024-11-18 21:18:40,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2024-11-18 21:18:40,317 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:40,317 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:40,317 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 21:18:40,318 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:40,318 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:40,318 INFO  L85        PathProgramCache]: Analyzing trace with hash 1521014431, now seen corresponding path program 1 times
[2024-11-18 21:18:40,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:40,319 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356031876]
[2024-11-18 21:18:40,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:40,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:40,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:41,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:41,379 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:41,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356031876]
[2024-11-18 21:18:41,379 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356031876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:41,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:41,380 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 21:18:41,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181912631]
[2024-11-18 21:18:41,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:41,380 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 21:18:41,380 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:41,381 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 21:18:41,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:41,381 INFO  L87              Difference]: Start difference. First operand 314 states and 461 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:41,761 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:41,762 INFO  L93              Difference]: Finished difference Result 628 states and 910 transitions.
[2024-11-18 21:18:41,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 21:18:41,762 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 174
[2024-11-18 21:18:41,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:41,765 INFO  L225             Difference]: With dead ends: 628
[2024-11-18 21:18:41,766 INFO  L226             Difference]: Without dead ends: 330
[2024-11-18 21:18:41,767 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:41,767 INFO  L432           NwaCegarLoop]: 199 mSDtfsCounter, 82 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:41,768 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 521 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 21:18:41,768 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 330 states.
[2024-11-18 21:18:41,826 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 274.
[2024-11-18 21:18:41,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 274 states, 185 states have (on average 1.3027027027027027) internal successors, (241), 188 states have internal predecessors, (241), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-18 21:18:41,828 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 401 transitions.
[2024-11-18 21:18:41,829 INFO  L78                 Accepts]: Start accepts. Automaton has 274 states and 401 transitions. Word has length 174
[2024-11-18 21:18:41,830 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:41,830 INFO  L471      AbstractCegarLoop]: Abstraction has 274 states and 401 transitions.
[2024-11-18 21:18:41,830 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:41,830 INFO  L276                IsEmpty]: Start isEmpty. Operand 274 states and 401 transitions.
[2024-11-18 21:18:41,832 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-18 21:18:41,832 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:41,832 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:41,832 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 21:18:41,832 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:41,833 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:41,833 INFO  L85        PathProgramCache]: Analyzing trace with hash -2060853403, now seen corresponding path program 1 times
[2024-11-18 21:18:41,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:41,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441378110]
[2024-11-18 21:18:41,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:41,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:41,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 21:18:42,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2024-11-18 21:18:42,084 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 21:18:42,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441378110]
[2024-11-18 21:18:42,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441378110] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 21:18:42,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 21:18:42,084 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 21:18:42,084 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761801232]
[2024-11-18 21:18:42,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 21:18:42,085 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 21:18:42,085 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 21:18:42,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 21:18:42,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 21:18:42,086 INFO  L87              Difference]: Start difference. First operand 274 states and 401 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:42,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 21:18:42,371 INFO  L93              Difference]: Finished difference Result 829 states and 1193 transitions.
[2024-11-18 21:18:42,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 21:18:42,372 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 175
[2024-11-18 21:18:42,372 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 21:18:42,376 INFO  L225             Difference]: With dead ends: 829
[2024-11-18 21:18:42,376 INFO  L226             Difference]: Without dead ends: 571
[2024-11-18 21:18:42,378 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 21:18:42,379 INFO  L432           NwaCegarLoop]: 138 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 21:18:42,379 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 323 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 21:18:42,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 571 states.
[2024-11-18 21:18:42,499 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 564.
[2024-11-18 21:18:42,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 564 states, 391 states have (on average 1.2915601023017902) internal successors, (505), 400 states have internal predecessors, (505), 152 states have call successors, (152), 20 states have call predecessors, (152), 20 states have return successors, (152), 143 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-18 21:18:42,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 809 transitions.
[2024-11-18 21:18:42,503 INFO  L78                 Accepts]: Start accepts. Automaton has 564 states and 809 transitions. Word has length 175
[2024-11-18 21:18:42,504 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 21:18:42,504 INFO  L471      AbstractCegarLoop]: Abstraction has 564 states and 809 transitions.
[2024-11-18 21:18:42,504 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2024-11-18 21:18:42,504 INFO  L276                IsEmpty]: Start isEmpty. Operand 564 states and 809 transitions.
[2024-11-18 21:18:42,506 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2024-11-18 21:18:42,506 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 21:18:42,506 INFO  L215           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 21:18:42,506 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 21:18:42,507 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 21:18:42,507 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 21:18:42,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 11333371, now seen corresponding path program 1 times
[2024-11-18 21:18:42,507 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 21:18:42,508 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079025809]
[2024-11-18 21:18:42,508 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 21:18:42,508 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 21:18:42,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat