./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-33.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3289d67d
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_normal_file-33.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 113218720f1f4faf2eddef9adf1222c3b46ebe55dc41f5c9bc7cb247cb4bfba6
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m
[2024-11-16 15:26:43,511 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-16 15:26:43,569 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-16 15:26:43,575 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-16 15:26:43,577 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-16 15:26:43,610 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-16 15:26:43,611 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-16 15:26:43,611 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-16 15:26:43,612 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-16 15:26:43,613 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-16 15:26:43,613 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-16 15:26:43,614 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-16 15:26:43,614 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-16 15:26:43,615 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-16 15:26:43,615 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-16 15:26:43,615 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-16 15:26:43,616 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-16 15:26:43,616 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-16 15:26:43,616 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-16 15:26:43,616 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-16 15:26:43,617 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-16 15:26:43,619 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-16 15:26:43,620 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-16 15:26:43,620 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-16 15:26:43,620 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-16 15:26:43,621 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-16 15:26:43,621 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-16 15:26:43,621 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-16 15:26:43,622 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-16 15:26:43,622 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-16 15:26:43,622 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-16 15:26:43,623 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-16 15:26:43,623 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 15:26:43,623 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-16 15:26:43,623 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-16 15:26:43,624 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-16 15:26:43,624 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-16 15:26:43,624 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-16 15:26:43,625 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-16 15:26:43,625 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-16 15:26:43,625 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-16 15:26:43,626 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-16 15:26:43,626 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 -> 113218720f1f4faf2eddef9adf1222c3b46ebe55dc41f5c9bc7cb247cb4bfba6
[2024-11-16 15:26:43,864 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-16 15:26:43,892 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-16 15:26:43,894 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-16 15:26:43,895 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-16 15:26:43,896 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-16 15:26:43,897 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-33.i
[2024-11-16 15:26:45,301 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-16 15:26:45,523 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-16 15:26:45,524 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-33.i
[2024-11-16 15:26:45,536 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19d87155/c371db4592ca4f80865d7a2006d41c1b/FLAG9e157b940
[2024-11-16 15:26:45,872 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19d87155/c371db4592ca4f80865d7a2006d41c1b
[2024-11-16 15:26:45,874 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-16 15:26:45,876 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-16 15:26:45,878 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-16 15:26:45,878 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-16 15:26:45,882 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-16 15:26:45,883 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:26:45" (1/1) ...
[2024-11-16 15:26:45,884 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e98770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:45, skipping insertion in model container
[2024-11-16 15:26:45,884 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:26:45" (1/1) ...
[2024-11-16 15:26:45,917 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-16 15:26:46,131 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_normal_file-33.i[913,926]
[2024-11-16 15:26:46,201 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 15:26:46,212 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-16 15:26:46,222 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_normal_file-33.i[913,926]
[2024-11-16 15:26:46,254 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 15:26:46,272 INFO  L204         MainTranslator]: Completed translation
[2024-11-16 15:26:46,273 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46 WrapperNode
[2024-11-16 15:26:46,273 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-16 15:26:46,274 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-16 15:26:46,274 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-16 15:26:46,274 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-16 15:26:46,280 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,293 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,330 INFO  L138                Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 149
[2024-11-16 15:26:46,331 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-16 15:26:46,331 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-16 15:26:46,332 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-16 15:26:46,332 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-16 15:26:46,347 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,347 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,350 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,377 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].
[2024-11-16 15:26:46,377 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,378 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,385 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,386 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,388 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,389 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,393 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-16 15:26:46,394 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-16 15:26:46,394 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-16 15:26:46,394 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-16 15:26:46,395 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (1/1) ...
[2024-11-16 15:26:46,415 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 15:26:46,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-16 15:26:46,444 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)
[2024-11-16 15:26:46,446 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
[2024-11-16 15:26:46,487 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-16 15:26:46,487 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-16 15:26:46,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-16 15:26:46,488 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-16 15:26:46,488 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-16 15:26:46,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-16 15:26:46,575 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-16 15:26:46,577 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-16 15:26:46,921 INFO  L1250  $ProcedureCfgBuilder]: dead code at ProgramPoint L112: havoc property_#t~ite15#1;havoc property_#t~bitwise14#1;
[2024-11-16 15:26:46,955 INFO  L?                        ?]: Removed 15 outVars from TransFormulas that were not future-live.
[2024-11-16 15:26:46,956 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-16 15:26:46,985 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-16 15:26:46,985 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-16 15:26:46,985 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:26:46 BoogieIcfgContainer
[2024-11-16 15:26:46,985 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-16 15:26:46,989 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-16 15:26:46,990 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-16 15:26:46,994 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-16 15:26:46,994 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:26:45" (1/3) ...
[2024-11-16 15:26:46,995 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f29fec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:26:46, skipping insertion in model container
[2024-11-16 15:26:46,996 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:26:46" (2/3) ...
[2024-11-16 15:26:46,997 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f29fec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:26:46, skipping insertion in model container
[2024-11-16 15:26:46,997 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:26:46" (3/3) ...
[2024-11-16 15:26:46,998 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-33.i
[2024-11-16 15:26:47,019 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-16 15:26:47,020 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-16 15:26:47,089 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-16 15:26:47,098 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;@11fd8cb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-16 15:26:47,099 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-16 15:26:47,106 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 68 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 48 states have internal predecessors, (64), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-16 15:26:47,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-16 15:26:47,123 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 15:26:47,124 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 15:26:47,124 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 15:26:47,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 15:26:47,131 INFO  L85        PathProgramCache]: Analyzing trace with hash -1062846036, now seen corresponding path program 1 times
[2024-11-16 15:26:47,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 15:26:47,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854730489]
[2024-11-16 15:26:47,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:26:47,144 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 15:26:47,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,439 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-16 15:26:47,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,455 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-11-16 15:26:47,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,461 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-16 15:26:47,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,466 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-16 15:26:47,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,471 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-16 15:26:47,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,477 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-16 15:26:47,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,482 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2024-11-16 15:26:47,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,486 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2024-11-16 15:26:47,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,491 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-11-16 15:26:47,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,496 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-11-16 15:26:47,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,501 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-16 15:26:47,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,506 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2024-11-16 15:26:47,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,510 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2024-11-16 15:26:47,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,515 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2024-11-16 15:26:47,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,519 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2024-11-16 15:26:47,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,523 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2024-11-16 15:26:47,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,528 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-16 15:26:47,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,533 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2024-11-16 15:26:47,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:47,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-16 15:26:47,540 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 15:26:47,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854730489]
[2024-11-16 15:26:47,540 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854730489] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 15:26:47,541 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 15:26:47,541 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-16 15:26:47,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674233552]
[2024-11-16 15:26:47,544 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 15:26:47,549 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-16 15:26:47,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-16 15:26:47,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-16 15:26:47,574 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 15:26:47,576 INFO  L87              Difference]: Start difference. First operand  has 68 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 48 states have internal predecessors, (64), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-16 15:26:47,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 15:26:47,608 INFO  L93              Difference]: Finished difference Result 128 states and 211 transitions.
[2024-11-16 15:26:47,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-16 15:26:47,611 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120
[2024-11-16 15:26:47,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 15:26:47,620 INFO  L225             Difference]: With dead ends: 128
[2024-11-16 15:26:47,623 INFO  L226             Difference]: Without dead ends: 63
[2024-11-16 15:26:47,628 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 15:26:47,634 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-16 15:26:47,635 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-16 15:26:47,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-16 15:26:47,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2024-11-16 15:26:47,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-16 15:26:47,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions.
[2024-11-16 15:26:47,704 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 120
[2024-11-16 15:26:47,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 15:26:47,704 INFO  L471      AbstractCegarLoop]: Abstraction has 63 states and 91 transitions.
[2024-11-16 15:26:47,708 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-16 15:26:47,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions.
[2024-11-16 15:26:47,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2024-11-16 15:26:47,713 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 15:26:47,713 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 15:26:47,714 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-16 15:26:47,714 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 15:26:47,714 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 15:26:47,715 INFO  L85        PathProgramCache]: Analyzing trace with hash 777726348, now seen corresponding path program 1 times
[2024-11-16 15:26:47,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 15:26:47,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498413571]
[2024-11-16 15:26:47,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:26:47,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 15:26:47,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,567 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-16 15:26:48,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,582 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-11-16 15:26:48,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,597 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-16 15:26:48,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,607 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-16 15:26:48,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,617 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-16 15:26:48,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,625 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-16 15:26:48,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,635 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2024-11-16 15:26:48,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,646 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2024-11-16 15:26:48,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,656 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-11-16 15:26:48,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,664 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-11-16 15:26:48,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,672 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-16 15:26:48,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,683 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2024-11-16 15:26:48,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,697 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2024-11-16 15:26:48,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,710 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2024-11-16 15:26:48,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,727 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2024-11-16 15:26:48,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,736 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2024-11-16 15:26:48,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,747 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-16 15:26:48,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,760 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2024-11-16 15:26:48,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:48,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-16 15:26:48,777 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 15:26:48,777 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498413571]
[2024-11-16 15:26:48,777 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498413571] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 15:26:48,777 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 15:26:48,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-16 15:26:48,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803250660]
[2024-11-16 15:26:48,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 15:26:48,779 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-16 15:26:48,780 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-16 15:26:48,781 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-16 15:26:48,782 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-16 15:26:48,782 INFO  L87              Difference]: Start difference. First operand 63 states and 91 transitions. Second operand  has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-16 15:26:49,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 15:26:49,095 INFO  L93              Difference]: Finished difference Result 189 states and 276 transitions.
[2024-11-16 15:26:49,096 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-16 15:26:49,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120
[2024-11-16 15:26:49,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 15:26:49,099 INFO  L225             Difference]: With dead ends: 189
[2024-11-16 15:26:49,101 INFO  L226             Difference]: Without dead ends: 129
[2024-11-16 15:26:49,102 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-16 15:26:49,103 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 70 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-16 15:26:49,104 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 209 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-16 15:26:49,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-16 15:26:49,140 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113.
[2024-11-16 15:26:49,143 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 74 states have internal predecessors, (94), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-16 15:26:49,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions.
[2024-11-16 15:26:49,147 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 120
[2024-11-16 15:26:49,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 15:26:49,148 INFO  L471      AbstractCegarLoop]: Abstraction has 113 states and 166 transitions.
[2024-11-16 15:26:49,149 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-16 15:26:49,150 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions.
[2024-11-16 15:26:49,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2024-11-16 15:26:49,152 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 15:26:49,153 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 15:26:49,153 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-16 15:26:49,153 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 15:26:49,153 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 15:26:49,154 INFO  L85        PathProgramCache]: Analyzing trace with hash 768863702, now seen corresponding path program 1 times
[2024-11-16 15:26:49,154 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 15:26:49,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988526772]
[2024-11-16 15:26:49,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:26:49,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 15:26:49,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,419 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-16 15:26:49,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,429 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-11-16 15:26:49,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,436 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-16 15:26:49,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,443 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-16 15:26:49,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,451 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-16 15:26:49,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,455 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-16 15:26:49,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,461 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2024-11-16 15:26:49,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,465 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2024-11-16 15:26:49,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,473 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-11-16 15:26:49,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,478 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-11-16 15:26:49,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,484 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-16 15:26:49,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,490 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2024-11-16 15:26:49,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,497 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2024-11-16 15:26:49,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,504 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2024-11-16 15:26:49,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,509 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2024-11-16 15:26:49,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,515 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2024-11-16 15:26:49,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,521 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-16 15:26:49,524 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,527 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2024-11-16 15:26:49,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:49,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-16 15:26:49,533 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 15:26:49,534 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988526772]
[2024-11-16 15:26:49,534 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988526772] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 15:26:49,534 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 15:26:49,534 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-16 15:26:49,535 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641290628]
[2024-11-16 15:26:49,535 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 15:26:49,536 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-16 15:26:49,536 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-16 15:26:49,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-16 15:26:49,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-16 15:26:49,539 INFO  L87              Difference]: Start difference. First operand 113 states and 166 transitions. Second operand  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-16 15:26:49,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 15:26:49,733 INFO  L93              Difference]: Finished difference Result 198 states and 287 transitions.
[2024-11-16 15:26:49,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-16 15:26:49,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 121
[2024-11-16 15:26:49,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 15:26:49,735 INFO  L225             Difference]: With dead ends: 198
[2024-11-16 15:26:49,735 INFO  L226             Difference]: Without dead ends: 125
[2024-11-16 15:26:49,736 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-16 15:26:49,740 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 67 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-16 15:26:49,740 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 214 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-16 15:26:49,741 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-16 15:26:49,764 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114.
[2024-11-16 15:26:49,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-16 15:26:49,768 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 166 transitions.
[2024-11-16 15:26:49,770 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 166 transitions. Word has length 121
[2024-11-16 15:26:49,771 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 15:26:49,771 INFO  L471      AbstractCegarLoop]: Abstraction has 114 states and 166 transitions.
[2024-11-16 15:26:49,771 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-16 15:26:49,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 166 transitions.
[2024-11-16 15:26:49,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2024-11-16 15:26:49,775 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 15:26:49,775 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 15:26:49,775 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-16 15:26:49,775 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 15:26:49,779 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 15:26:49,779 INFO  L85        PathProgramCache]: Analyzing trace with hash 2087938593, now seen corresponding path program 1 times
[2024-11-16 15:26:49,780 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 15:26:49,780 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179755656]
[2024-11-16 15:26:49,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:26:49,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 15:26:49,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,739 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-16 15:26:59,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,745 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-11-16 15:26:59,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,752 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-16 15:26:59,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,757 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-16 15:26:59,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,761 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-16 15:26:59,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,764 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-16 15:26:59,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,767 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2024-11-16 15:26:59,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,770 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2024-11-16 15:26:59,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,774 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-11-16 15:26:59,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,778 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-11-16 15:26:59,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,781 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-16 15:26:59,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,787 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2024-11-16 15:26:59,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,792 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2024-11-16 15:26:59,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,797 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2024-11-16 15:26:59,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,803 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2024-11-16 15:26:59,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,809 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2024-11-16 15:26:59,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,813 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-16 15:26:59,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,817 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2024-11-16 15:26:59,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:26:59,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-16 15:26:59,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 15:26:59,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179755656]
[2024-11-16 15:26:59,830 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179755656] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 15:26:59,831 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 15:26:59,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-16 15:26:59,832 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897237142]
[2024-11-16 15:26:59,832 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 15:26:59,832 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-16 15:26:59,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-16 15:26:59,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-16 15:26:59,835 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182
[2024-11-16 15:26:59,835 INFO  L87              Difference]: Start difference. First operand 114 states and 166 transitions. Second operand  has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-16 15:27:03,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 15:27:03,087 INFO  L93              Difference]: Finished difference Result 328 states and 459 transitions.
[2024-11-16 15:27:03,087 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-16 15:27:03,088 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122
[2024-11-16 15:27:03,088 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 15:27:03,093 INFO  L225             Difference]: With dead ends: 328
[2024-11-16 15:27:03,093 INFO  L226             Difference]: Without dead ends: 268
[2024-11-16 15:27:03,094 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650
[2024-11-16 15:27:03,095 INFO  L432           NwaCegarLoop]: 121 mSDtfsCounter, 268 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-16 15:27:03,095 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 793 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-16 15:27:03,100 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2024-11-16 15:27:03,141 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 207.
[2024-11-16 15:27:03,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207 states, 148 states have (on average 1.2837837837837838) internal successors, (190), 148 states have internal predecessors, (190), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-16 15:27:03,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 298 transitions.
[2024-11-16 15:27:03,147 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 298 transitions. Word has length 122
[2024-11-16 15:27:03,148 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 15:27:03,148 INFO  L471      AbstractCegarLoop]: Abstraction has 207 states and 298 transitions.
[2024-11-16 15:27:03,148 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-16 15:27:03,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 298 transitions.
[2024-11-16 15:27:03,150 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2024-11-16 15:27:03,150 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 15:27:03,150 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 15:27:03,150 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-16 15:27:03,150 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 15:27:03,151 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 15:27:03,151 INFO  L85        PathProgramCache]: Analyzing trace with hash 290987234, now seen corresponding path program 1 times
[2024-11-16 15:27:03,151 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 15:27:03,152 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079056806]
[2024-11-16 15:27:03,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:27:03,152 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 15:27:03,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,654 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-16 15:27:09,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,658 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-11-16 15:27:09,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,661 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-16 15:27:09,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,710 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-16 15:27:09,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,715 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2024-11-16 15:27:09,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,719 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-16 15:27:09,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,722 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2024-11-16 15:27:09,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,725 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2024-11-16 15:27:09,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,728 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2024-11-16 15:27:09,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,733 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2024-11-16 15:27:09,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,737 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-16 15:27:09,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,740 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2024-11-16 15:27:09,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,743 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2024-11-16 15:27:09,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,747 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2024-11-16 15:27:09,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,750 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2024-11-16 15:27:09,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,753 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2024-11-16 15:27:09,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,755 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-16 15:27:09,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,761 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2024-11-16 15:27:09,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2024-11-16 15:27:09,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 15:27:09,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079056806]
[2024-11-16 15:27:09,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079056806] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-16 15:27:09,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601975092]
[2024-11-16 15:27:09,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 15:27:09,767 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-16 15:27:09,770 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-16 15:27:09,772 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)
[2024-11-16 15:27:09,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-16 15:27:09,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 15:27:09,881 INFO  L255         TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 31 conjuncts are in the unsatisfiable core
[2024-11-16 15:27:09,891 INFO  L278         TraceCheckSpWp]: Computing forward predicates...