./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-20 06:08:01,070 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-20 06:08:01,154 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-20 06:08:01,164 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-20 06:08:01,165 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-20 06:08:01,197 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-20 06:08:01,198 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-20 06:08:01,199 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-20 06:08:01,199 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-20 06:08:01,200 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-20 06:08:01,200 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-20 06:08:01,201 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-20 06:08:01,201 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-20 06:08:01,202 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-20 06:08:01,202 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-20 06:08:01,202 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-20 06:08:01,203 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-20 06:08:01,203 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-20 06:08:01,204 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-20 06:08:01,204 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-20 06:08:01,204 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-20 06:08:01,205 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-20 06:08:01,205 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-20 06:08:01,206 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-20 06:08:01,206 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-20 06:08:01,207 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-20 06:08:01,207 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-20 06:08:01,207 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-20 06:08:01,208 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-20 06:08:01,208 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-20 06:08:01,208 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-20 06:08:01,208 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-20 06:08:01,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 06:08:01,209 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-20 06:08:01,210 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-20 06:08:01,210 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-20 06:08:01,211 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-20 06:08:01,211 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-20 06:08:01,211 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-20 06:08:01,212 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-20 06:08:01,212 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-20 06:08:01,216 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-20 06:08:01,217 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 -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c
[2024-11-20 06:08:01,478 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-20 06:08:01,506 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-20 06:08:01,509 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-20 06:08:01,511 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-20 06:08:01,511 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-20 06:08:01,513 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-20 06:08:02,900 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-20 06:08:03,098 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-20 06:08:03,099 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-20 06:08:03,107 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e346f04/0076749adef5436c977c3b90c7367bba/FLAG7e59be7f9
[2024-11-20 06:08:03,460 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e346f04/0076749adef5436c977c3b90c7367bba
[2024-11-20 06:08:03,461 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-20 06:08:03,462 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-20 06:08:03,464 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-20 06:08:03,464 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-20 06:08:03,469 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-20 06:08:03,469 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,470 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eae8e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03, skipping insertion in model container
[2024-11-20 06:08:03,470 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,495 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-20 06:08:03,659 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_floatingpointinfluence_no-floats_file-92.i[916,929]
[2024-11-20 06:08:03,715 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 06:08:03,729 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-20 06:08:03,740 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_floatingpointinfluence_no-floats_file-92.i[916,929]
[2024-11-20 06:08:03,761 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 06:08:03,781 INFO  L204         MainTranslator]: Completed translation
[2024-11-20 06:08:03,782 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03 WrapperNode
[2024-11-20 06:08:03,782 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-20 06:08:03,783 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-20 06:08:03,783 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-20 06:08:03,784 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-20 06:08:03,790 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,806 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,844 INFO  L138                Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143
[2024-11-20 06:08:03,847 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-20 06:08:03,848 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-20 06:08:03,848 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-20 06:08:03,848 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-20 06:08:03,863 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,863 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,865 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,879 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].
[2024-11-20 06:08:03,879 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,880 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,886 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,893 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,894 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,896 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,898 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-20 06:08:03,899 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-20 06:08:03,899 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-20 06:08:03,900 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-20 06:08:03,900 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (1/1) ...
[2024-11-20 06:08:03,919 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 06:08:03,930 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 06:08:03,960 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)
[2024-11-20 06:08:03,963 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
[2024-11-20 06:08:04,015 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-20 06:08:04,015 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-20 06:08:04,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-20 06:08:04,016 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-20 06:08:04,016 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-20 06:08:04,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-20 06:08:04,089 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-20 06:08:04,092 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-20 06:08:04,334 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-20 06:08:04,335 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-20 06:08:04,349 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-20 06:08:04,349 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-20 06:08:04,350 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:08:04 BoogieIcfgContainer
[2024-11-20 06:08:04,350 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-20 06:08:04,352 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-20 06:08:04,352 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-20 06:08:04,355 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-20 06:08:04,355 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:08:03" (1/3) ...
[2024-11-20 06:08:04,356 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13509ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:08:04, skipping insertion in model container
[2024-11-20 06:08:04,356 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:08:03" (2/3) ...
[2024-11-20 06:08:04,357 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13509ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:08:04, skipping insertion in model container
[2024-11-20 06:08:04,357 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:08:04" (3/3) ...
[2024-11-20 06:08:04,358 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-20 06:08:04,374 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-20 06:08:04,374 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-20 06:08:04,430 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-20 06:08:04,440 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;@72ce7271, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-20 06:08:04,440 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-20 06:08:04,446 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 65 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 42 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-20 06:08:04,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-20 06:08:04,457 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 06:08:04,458 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-20 06:08:04,459 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 06:08:04,464 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 06:08:04,464 INFO  L85        PathProgramCache]: Analyzing trace with hash 627929846, now seen corresponding path program 1 times
[2024-11-20 06:08:04,471 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 06:08:04,471 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787011275]
[2024-11-20 06:08:04,471 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:04,471 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 06:08:04,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,792 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-20 06:08:04,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,811 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-20 06:08:04,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,820 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-20 06:08:04,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,825 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-20 06:08:04,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,830 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-20 06:08:04,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,835 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-20 06:08:04,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,839 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-20 06:08:04,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,844 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-20 06:08:04,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,854 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-20 06:08:04,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,864 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-20 06:08:04,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,870 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-20 06:08:04,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,879 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-20 06:08:04,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,887 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-20 06:08:04,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,901 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-20 06:08:04,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,909 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-20 06:08:04,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,913 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-20 06:08:04,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,921 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-20 06:08:04,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,927 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-20 06:08:04,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,931 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-20 06:08:04,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,937 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-20 06:08:04,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,944 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-20 06:08:04,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:04,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-20 06:08:04,955 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 06:08:04,956 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787011275]
[2024-11-20 06:08:04,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787011275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 06:08:04,959 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 06:08:04,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-20 06:08:04,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158801687]
[2024-11-20 06:08:04,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 06:08:04,966 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-20 06:08:04,967 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 06:08:04,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-20 06:08:04,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-20 06:08:04,989 INFO  L87              Difference]: Start difference. First operand  has 65 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 42 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-20 06:08:05,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 06:08:05,025 INFO  L93              Difference]: Finished difference Result 123 states and 207 transitions.
[2024-11-20 06:08:05,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-20 06:08:05,028 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133
[2024-11-20 06:08:05,028 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 06:08:05,035 INFO  L225             Difference]: With dead ends: 123
[2024-11-20 06:08:05,035 INFO  L226             Difference]: Without dead ends: 61
[2024-11-20 06:08:05,038 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-20 06:08:05,041 INFO  L432           NwaCegarLoop]: 89 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, 89 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
[2024-11-20 06:08:05,041 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-20 06:08:05,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2024-11-20 06:08:05,073 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61.
[2024-11-20 06:08:05,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-20 06:08:05,076 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions.
[2024-11-20 06:08:05,077 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 133
[2024-11-20 06:08:05,078 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 06:08:05,078 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 89 transitions.
[2024-11-20 06:08:05,078 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-20 06:08:05,078 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions.
[2024-11-20 06:08:05,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-20 06:08:05,081 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 06:08:05,081 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-20 06:08:05,082 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-20 06:08:05,082 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 06:08:05,083 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 06:08:05,083 INFO  L85        PathProgramCache]: Analyzing trace with hash 942487928, now seen corresponding path program 1 times
[2024-11-20 06:08:05,083 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 06:08:05,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788267741]
[2024-11-20 06:08:05,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:05,084 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 06:08:05,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,579 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-20 06:08:05,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,587 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-20 06:08:05,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,593 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-20 06:08:05,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,598 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-20 06:08:05,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,605 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-20 06:08:05,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,608 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-20 06:08:05,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,610 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-20 06:08:05,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,614 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-20 06:08:05,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,620 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-20 06:08:05,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,624 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-20 06:08:05,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,626 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-20 06:08:05,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,630 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-20 06:08:05,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,634 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-20 06:08:05,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,637 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-20 06:08:05,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,641 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-20 06:08:05,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,644 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-20 06:08:05,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,660 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-20 06:08:05,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,664 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-20 06:08:05,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,667 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-20 06:08:05,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,671 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-20 06:08:05,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,673 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-20 06:08:05,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:05,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-20 06:08:05,678 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 06:08:05,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788267741]
[2024-11-20 06:08:05,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788267741] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 06:08:05,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 06:08:05,679 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-20 06:08:05,679 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890682454]
[2024-11-20 06:08:05,679 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 06:08:05,682 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-20 06:08:05,684 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 06:08:05,685 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-20 06:08:05,685 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-20 06:08:05,686 INFO  L87              Difference]: Start difference. First operand 61 states and 89 transitions. Second operand  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-20 06:08:05,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 06:08:05,885 INFO  L93              Difference]: Finished difference Result 121 states and 177 transitions.
[2024-11-20 06:08:05,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-20 06:08:05,885 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 133
[2024-11-20 06:08:05,886 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 06:08:05,888 INFO  L225             Difference]: With dead ends: 121
[2024-11-20 06:08:05,888 INFO  L226             Difference]: Without dead ends: 63
[2024-11-20 06:08:05,889 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-20 06:08:05,890 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 22 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-20 06:08:05,890 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 184 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-20 06:08:05,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-20 06:08:05,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61.
[2024-11-20 06:08:05,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-20 06:08:05,899 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions.
[2024-11-20 06:08:05,900 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 133
[2024-11-20 06:08:05,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 06:08:05,901 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 88 transitions.
[2024-11-20 06:08:05,902 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-20 06:08:05,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions.
[2024-11-20 06:08:05,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-20 06:08:05,906 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 06:08:05,906 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-20 06:08:05,907 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-20 06:08:05,907 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 06:08:05,907 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 06:08:05,908 INFO  L85        PathProgramCache]: Analyzing trace with hash -1341353581, now seen corresponding path program 1 times
[2024-11-20 06:08:05,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 06:08:05,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846964995]
[2024-11-20 06:08:05,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:05,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 06:08:06,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,382 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-20 06:08:06,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,386 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-20 06:08:06,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,389 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-20 06:08:06,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,392 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-20 06:08:06,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,395 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-20 06:08:06,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,398 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-20 06:08:06,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,402 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-20 06:08:06,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,408 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-20 06:08:06,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,412 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-20 06:08:06,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,414 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-20 06:08:06,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,417 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-20 06:08:06,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,419 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-20 06:08:06,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,421 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-20 06:08:06,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,424 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-20 06:08:06,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,426 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-20 06:08:06,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,429 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-20 06:08:06,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,435 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-20 06:08:06,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,437 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-20 06:08:06,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,442 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-20 06:08:06,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,474 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-20 06:08:06,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,482 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-20 06:08:06,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,489 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-20 06:08:06,491 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 06:08:06,491 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846964995]
[2024-11-20 06:08:06,491 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846964995] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-20 06:08:06,491 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184036837]
[2024-11-20 06:08:06,492 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:06,492 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 06:08:06,492 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 06:08:06,496 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)
[2024-11-20 06:08:06,498 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-20 06:08:06,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:06,616 INFO  L255         TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-20 06:08:06,624 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 06:08:06,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked.
[2024-11-20 06:08:06,750 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-20 06:08:06,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-20 06:08:06,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [184036837] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-20 06:08:06,986 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-20 06:08:06,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2024-11-20 06:08:06,987 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796515623]
[2024-11-20 06:08:06,987 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-20 06:08:06,988 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-20 06:08:06,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 06:08:06,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-20 06:08:06,989 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-20 06:08:06,989 INFO  L87              Difference]: Start difference. First operand 61 states and 88 transitions. Second operand  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-20 06:08:07,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 06:08:07,624 INFO  L93              Difference]: Finished difference Result 257 states and 361 transitions.
[2024-11-20 06:08:07,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-20 06:08:07,625 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 135
[2024-11-20 06:08:07,626 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 06:08:07,628 INFO  L225             Difference]: With dead ends: 257
[2024-11-20 06:08:07,629 INFO  L226             Difference]: Without dead ends: 199
[2024-11-20 06:08:07,630 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702
[2024-11-20 06:08:07,631 INFO  L432           NwaCegarLoop]: 106 mSDtfsCounter, 201 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-20 06:08:07,631 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 387 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-20 06:08:07,632 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-11-20 06:08:07,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 67.
[2024-11-20 06:08:07,659 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-20 06:08:07,660 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions.
[2024-11-20 06:08:07,661 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 135
[2024-11-20 06:08:07,663 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 06:08:07,664 INFO  L471      AbstractCegarLoop]: Abstraction has 67 states and 93 transitions.
[2024-11-20 06:08:07,664 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-20 06:08:07,664 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions.
[2024-11-20 06:08:07,666 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-20 06:08:07,668 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 06:08:07,668 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-20 06:08:07,678 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-20 06:08:07,869 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 06:08:07,869 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 06:08:07,870 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 06:08:07,870 INFO  L85        PathProgramCache]: Analyzing trace with hash -661295211, now seen corresponding path program 1 times
[2024-11-20 06:08:07,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 06:08:07,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328791492]
[2024-11-20 06:08:07,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:07,870 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 06:08:07,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-20 06:08:07,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932344071]
[2024-11-20 06:08:07,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:07,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 06:08:07,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 06:08:07,954 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-20 06:08:07,956 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-20 06:08:08,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:08,044 INFO  L255         TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-20 06:08:08,052 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 06:08:16,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-20 06:08:16,939 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-20 06:08:16,939 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 06:08:16,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328791492]
[2024-11-20 06:08:16,940 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-20 06:08:16,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932344071]
[2024-11-20 06:08:16,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932344071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 06:08:16,941 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 06:08:16,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2024-11-20 06:08:16,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642917596]
[2024-11-20 06:08:16,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 06:08:16,942 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-20 06:08:16,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 06:08:16,943 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-20 06:08:16,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2024-11-20 06:08:16,943 INFO  L87              Difference]: Start difference. First operand 67 states and 93 transitions. Second operand  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-20 06:08:17,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-20 06:08:17,566 INFO  L93              Difference]: Finished difference Result 119 states and 155 transitions.
[2024-11-20 06:08:17,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-20 06:08:17,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 135
[2024-11-20 06:08:17,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-20 06:08:17,568 INFO  L225             Difference]: With dead ends: 119
[2024-11-20 06:08:17,569 INFO  L226             Difference]: Without dead ends: 117
[2024-11-20 06:08:17,569 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2024-11-20 06:08:17,570 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-20 06:08:17,570 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 695 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-20 06:08:17,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117 states.
[2024-11-20 06:08:17,588 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103.
[2024-11-20 06:08:17,589 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 75 states have internal predecessors, (89), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-20 06:08:17,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions.
[2024-11-20 06:08:17,591 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 135
[2024-11-20 06:08:17,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-20 06:08:17,591 INFO  L471      AbstractCegarLoop]: Abstraction has 103 states and 139 transitions.
[2024-11-20 06:08:17,591 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-20 06:08:17,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions.
[2024-11-20 06:08:17,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-20 06:08:17,593 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-20 06:08:17,593 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-20 06:08:17,606 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-20 06:08:17,801 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2024-11-20 06:08:17,802 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-20 06:08:17,802 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 06:08:17,803 INFO  L85        PathProgramCache]: Analyzing trace with hash -640289003, now seen corresponding path program 1 times
[2024-11-20 06:08:17,803 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 06:08:17,803 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494240542]
[2024-11-20 06:08:17,803 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:17,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 06:08:17,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-20 06:08:17,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646744751]
[2024-11-20 06:08:17,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 06:08:17,859 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 06:08:17,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 06:08:17,862 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-20 06:08:17,864 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-20 06:08:18,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 06:08:18,034 INFO  L255         TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 56 conjuncts are in the unsatisfiable core
[2024-11-20 06:08:18,040 INFO  L278         TraceCheckSpWp]: Computing forward predicates...