./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-13.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
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 ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-13.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 da8d6803321973ca630199b6637b3c7e1909a2521698c73f2599b09c55d0dc3c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 11:37:12,538 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 11:37:12,591 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 11:37:12,596 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 11:37:12,596 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 11:37:12,622 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 11:37:12,622 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 11:37:12,623 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 11:37:12,623 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 11:37:12,623 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 11:37:12,624 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 11:37:12,624 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 11:37:12,624 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 11:37:12,626 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 11:37:12,626 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 11:37:12,626 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 11:37:12,627 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 11:37:12,628 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 11:37:12,628 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 11:37:12,628 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 11:37:12,630 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 11:37:12,631 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 11:37:12,631 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 11:37:12,631 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 11:37:12,631 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 11:37:12,631 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 11:37:12,632 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 11:37:12,632 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 11:37:12,632 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 11:37:12,632 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 11:37:12,632 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 11:37:12,633 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 11:37:12,633 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 11:37:12,633 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 11:37:12,633 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 11:37:12,633 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 11:37:12,633 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 11:37:12,634 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 11:37:12,634 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 11:37:12,634 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 11:37:12,636 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 11:37:12,636 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 11:37:12,636 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 -> da8d6803321973ca630199b6637b3c7e1909a2521698c73f2599b09c55d0dc3c
[2024-11-22 11:37:12,839 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 11:37:12,859 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 11:37:12,861 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 11:37:12,862 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 11:37:12,863 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 11:37:12,863 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-13.i
[2024-11-22 11:37:14,058 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 11:37:14,257 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 11:37:14,257 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-13.i
[2024-11-22 11:37:14,269 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69bb6b605/f475ffac19c34545966fec6586aea6a3/FLAG967436bb8
[2024-11-22 11:37:14,623 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69bb6b605/f475ffac19c34545966fec6586aea6a3
[2024-11-22 11:37:14,626 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 11:37:14,627 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 11:37:14,628 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 11:37:14,628 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 11:37:14,632 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 11:37:14,632 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:37:14" (1/1) ...
[2024-11-22 11:37:14,635 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff44b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:14, skipping insertion in model container
[2024-11-22 11:37:14,635 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:37:14" (1/1) ...
[2024-11-22 11:37:14,672 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 11:37:14,812 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_operatoramount_amount250_file-13.i[916,929]
[2024-11-22 11:37:14,935 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 11:37:14,949 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 11:37:14,959 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_operatoramount_amount250_file-13.i[916,929]
[2024-11-22 11:37:15,048 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 11:37:15,063 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 11:37:15,063 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15 WrapperNode
[2024-11-22 11:37:15,064 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 11:37:15,065 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 11:37:15,065 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 11:37:15,065 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 11:37:15,070 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,084 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,129 INFO  L138                Inliner]: procedures = 26, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410
[2024-11-22 11:37:15,129 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 11:37:15,130 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 11:37:15,130 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 11:37:15,130 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 11:37:15,139 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,139 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,153 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,195 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].
[2024-11-22 11:37:15,195 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,195 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,208 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,214 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,218 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,227 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,234 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 11:37:15,235 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 11:37:15,235 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 11:37:15,235 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 11:37:15,236 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (1/1) ...
[2024-11-22 11:37:15,241 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 11:37:15,250 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:15,266 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)
[2024-11-22 11:37:15,268 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
[2024-11-22 11:37:15,303 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 11:37:15,303 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 11:37:15,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 11:37:15,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 11:37:15,303 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 11:37:15,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 11:37:15,387 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 11:37:15,389 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 11:37:15,946 INFO  L?                        ?]: Removed 60 outVars from TransFormulas that were not future-live.
[2024-11-22 11:37:15,946 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 11:37:15,959 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 11:37:15,960 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 11:37:15,960 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:37:15 BoogieIcfgContainer
[2024-11-22 11:37:15,961 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 11:37:15,962 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 11:37:15,962 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 11:37:15,965 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 11:37:15,965 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:37:14" (1/3) ...
[2024-11-22 11:37:15,966 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9790f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:37:15, skipping insertion in model container
[2024-11-22 11:37:15,967 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:15" (2/3) ...
[2024-11-22 11:37:15,967 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9790f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:37:15, skipping insertion in model container
[2024-11-22 11:37:15,967 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:37:15" (3/3) ...
[2024-11-22 11:37:15,970 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-13.i
[2024-11-22 11:37:15,983 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 11:37:15,983 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 11:37:16,034 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 11:37:16,039 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;@33fc797c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 11:37:16,040 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 11:37:16,044 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 173 states, 118 states have (on average 1.4745762711864407) internal successors, (174), 119 states have internal predecessors, (174), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-22 11:37:16,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:16,066 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:16,067 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:16,068 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:16,072 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:16,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 1728996978, now seen corresponding path program 1 times
[2024-11-22 11:37:16,080 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:16,081 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202096586]
[2024-11-22 11:37:16,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:16,081 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:16,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:16,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-22 11:37:16,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:16,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202096586]
[2024-11-22 11:37:16,595 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202096586] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:16,595 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656442689]
[2024-11-22 11:37:16,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:16,596 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:16,596 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:16,598 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)
[2024-11-22 11:37:16,599 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-22 11:37:16,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:16,812 INFO  L255         TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:16,822 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:16,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked.
[2024-11-22 11:37:16,859 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 11:37:16,859 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656442689] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:16,859 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 11:37:16,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 11:37:16,861 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768247364]
[2024-11-22 11:37:16,861 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:16,867 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 11:37:16,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:16,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 11:37:16,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 11:37:16,890 INFO  L87              Difference]: Start difference. First operand  has 173 states, 118 states have (on average 1.4745762711864407) internal successors, (174), 119 states have internal predecessors, (174), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-22 11:37:16,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:16,919 INFO  L93              Difference]: Finished difference Result 339 states and 602 transitions.
[2024-11-22 11:37:16,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 11:37:16,920 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 342
[2024-11-22 11:37:16,921 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:16,926 INFO  L225             Difference]: With dead ends: 339
[2024-11-22 11:37:16,927 INFO  L226             Difference]: Without dead ends: 169
[2024-11-22 11:37:16,930 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 11:37:16,933 INFO  L432           NwaCegarLoop]: 270 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, 270 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
[2024-11-22 11:37:16,935 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 11:37:16,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-22 11:37:16,981 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169.
[2024-11-22 11:37:16,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 169 states, 115 states have (on average 1.4434782608695653) internal successors, (166), 115 states have internal predecessors, (166), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-22 11:37:16,984 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 270 transitions.
[2024-11-22 11:37:16,985 INFO  L78                 Accepts]: Start accepts. Automaton has 169 states and 270 transitions. Word has length 342
[2024-11-22 11:37:16,986 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:16,986 INFO  L471      AbstractCegarLoop]: Abstraction has 169 states and 270 transitions.
[2024-11-22 11:37:16,987 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-22 11:37:16,987 INFO  L276                IsEmpty]: Start isEmpty. Operand 169 states and 270 transitions.
[2024-11-22 11:37:16,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:16,991 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:16,991 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:16,999 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-22 11:37:17,195 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-22 11:37:17,196 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:17,196 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:17,196 INFO  L85        PathProgramCache]: Analyzing trace with hash -1842075286, now seen corresponding path program 1 times
[2024-11-22 11:37:17,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:17,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313024743]
[2024-11-22 11:37:17,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:17,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:17,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:17,599 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-22 11:37:17,599 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:17,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313024743]
[2024-11-22 11:37:17,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313024743] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:17,600 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 11:37:17,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 11:37:17,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386879116]
[2024-11-22 11:37:17,601 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:17,602 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 11:37:17,603 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:17,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 11:37:17,604 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 11:37:17,605 INFO  L87              Difference]: Start difference. First operand 169 states and 270 transitions. Second operand  has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:17,862 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:17,863 INFO  L93              Difference]: Finished difference Result 502 states and 805 transitions.
[2024-11-22 11:37:17,863 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 11:37:17,864 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342
[2024-11-22 11:37:17,866 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:17,871 INFO  L225             Difference]: With dead ends: 502
[2024-11-22 11:37:17,871 INFO  L226             Difference]: Without dead ends: 336
[2024-11-22 11:37:17,872 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 11:37:17,874 INFO  L432           NwaCegarLoop]: 267 mSDtfsCounter, 191 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:17,874 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 792 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-22 11:37:17,875 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 336 states.
[2024-11-22 11:37:17,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 264.
[2024-11-22 11:37:17,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 264 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 157 states have internal predecessors, (212), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-22 11:37:17,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 420 transitions.
[2024-11-22 11:37:17,924 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 420 transitions. Word has length 342
[2024-11-22 11:37:17,925 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:17,926 INFO  L471      AbstractCegarLoop]: Abstraction has 264 states and 420 transitions.
[2024-11-22 11:37:17,927 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:17,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 420 transitions.
[2024-11-22 11:37:17,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:17,930 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:17,930 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:17,930 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 11:37:17,931 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:17,931 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:17,931 INFO  L85        PathProgramCache]: Analyzing trace with hash 1559405672, now seen corresponding path program 1 times
[2024-11-22 11:37:17,931 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:17,931 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759388583]
[2024-11-22 11:37:17,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:17,932 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:18,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:18,430 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-22 11:37:18,430 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:18,430 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759388583]
[2024-11-22 11:37:18,430 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759388583] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:18,430 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 11:37:18,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 11:37:18,431 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084211435]
[2024-11-22 11:37:18,431 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:18,431 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 11:37:18,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:18,432 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 11:37:18,432 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 11:37:18,432 INFO  L87              Difference]: Start difference. First operand 264 states and 420 transitions. Second operand  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:18,468 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:18,469 INFO  L93              Difference]: Finished difference Result 430 states and 687 transitions.
[2024-11-22 11:37:18,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 11:37:18,470 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342
[2024-11-22 11:37:18,471 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:18,475 INFO  L225             Difference]: With dead ends: 430
[2024-11-22 11:37:18,475 INFO  L226             Difference]: Without dead ends: 264
[2024-11-22 11:37:18,476 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 11:37:18,477 INFO  L432           NwaCegarLoop]: 413 mSDtfsCounter, 258 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:18,478 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 564 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 11:37:18,479 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2024-11-22 11:37:18,504 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264.
[2024-11-22 11:37:18,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 264 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 157 states have internal predecessors, (210), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-22 11:37:18,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 418 transitions.
[2024-11-22 11:37:18,509 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 418 transitions. Word has length 342
[2024-11-22 11:37:18,509 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:18,509 INFO  L471      AbstractCegarLoop]: Abstraction has 264 states and 418 transitions.
[2024-11-22 11:37:18,510 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:18,510 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 418 transitions.
[2024-11-22 11:37:18,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:18,514 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:18,515 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:18,515 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 11:37:18,515 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:18,516 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:18,516 INFO  L85        PathProgramCache]: Analyzing trace with hash 530046374, now seen corresponding path program 1 times
[2024-11-22 11:37:18,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:18,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927822356]
[2024-11-22 11:37:18,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:18,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:18,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:19,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-22 11:37:19,683 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:19,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927822356]
[2024-11-22 11:37:19,684 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927822356] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:19,684 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 11:37:19,684 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-22 11:37:19,684 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211698982]
[2024-11-22 11:37:19,684 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:19,685 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-22 11:37:19,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:19,685 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-22 11:37:19,686 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-22 11:37:19,686 INFO  L87              Difference]: Start difference. First operand 264 states and 418 transitions. Second operand  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-22 11:37:20,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:20,641 INFO  L93              Difference]: Finished difference Result 876 states and 1374 transitions.
[2024-11-22 11:37:20,642 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-22 11:37:20,642 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 342
[2024-11-22 11:37:20,643 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:20,646 INFO  L225             Difference]: With dead ends: 876
[2024-11-22 11:37:20,647 INFO  L226             Difference]: Without dead ends: 710
[2024-11-22 11:37:20,648 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240
[2024-11-22 11:37:20,649 INFO  L432           NwaCegarLoop]: 327 mSDtfsCounter, 819 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:20,649 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1777 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-22 11:37:20,650 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 710 states.
[2024-11-22 11:37:20,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 626.
[2024-11-22 11:37:20,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 626 states, 456 states have (on average 1.4780701754385965) internal successors, (674), 458 states have internal predecessors, (674), 164 states have call successors, (164), 5 states have call predecessors, (164), 5 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164)
[2024-11-22 11:37:20,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 1002 transitions.
[2024-11-22 11:37:20,712 INFO  L78                 Accepts]: Start accepts. Automaton has 626 states and 1002 transitions. Word has length 342
[2024-11-22 11:37:20,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:20,713 INFO  L471      AbstractCegarLoop]: Abstraction has 626 states and 1002 transitions.
[2024-11-22 11:37:20,713 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52)
[2024-11-22 11:37:20,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 626 states and 1002 transitions.
[2024-11-22 11:37:20,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:20,717 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:20,717 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:20,717 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 11:37:20,717 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:20,718 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:20,718 INFO  L85        PathProgramCache]: Analyzing trace with hash 1210104744, now seen corresponding path program 1 times
[2024-11-22 11:37:20,718 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:20,718 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604210297]
[2024-11-22 11:37:20,718 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:20,718 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:20,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:21,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-22 11:37:21,781 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:21,781 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604210297]
[2024-11-22 11:37:21,781 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604210297] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:21,781 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 11:37:21,781 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 11:37:21,781 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561817126]
[2024-11-22 11:37:21,781 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:21,782 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 11:37:21,782 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:21,783 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 11:37:21,784 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-22 11:37:21,784 INFO  L87              Difference]: Start difference. First operand 626 states and 1002 transitions. Second operand  has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:22,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:22,116 INFO  L93              Difference]: Finished difference Result 1924 states and 3078 transitions.
[2024-11-22 11:37:22,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 11:37:22,116 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342
[2024-11-22 11:37:22,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:22,124 INFO  L225             Difference]: With dead ends: 1924
[2024-11-22 11:37:22,124 INFO  L226             Difference]: Without dead ends: 1402
[2024-11-22 11:37:22,125 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-22 11:37:22,126 INFO  L432           NwaCegarLoop]: 525 mSDtfsCounter, 738 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:22,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 929 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 11:37:22,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1402 states.
[2024-11-22 11:37:22,221 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1094.
[2024-11-22 11:37:22,223 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1094 states, 868 states have (on average 1.521889400921659) internal successors, (1321), 874 states have internal predecessors, (1321), 216 states have call successors, (216), 9 states have call predecessors, (216), 9 states have return successors, (216), 210 states have call predecessors, (216), 216 states have call successors, (216)
[2024-11-22 11:37:22,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1753 transitions.
[2024-11-22 11:37:22,229 INFO  L78                 Accepts]: Start accepts. Automaton has 1094 states and 1753 transitions. Word has length 342
[2024-11-22 11:37:22,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:22,230 INFO  L471      AbstractCegarLoop]: Abstraction has 1094 states and 1753 transitions.
[2024-11-22 11:37:22,230 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:22,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 1094 states and 1753 transitions.
[2024-11-22 11:37:22,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:22,236 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:22,236 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:22,237 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 11:37:22,237 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:22,238 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:22,238 INFO  L85        PathProgramCache]: Analyzing trace with hash -1713055254, now seen corresponding path program 1 times
[2024-11-22 11:37:22,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:22,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493974979]
[2024-11-22 11:37:22,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:22,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:22,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:23,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-22 11:37:23,077 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:23,077 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493974979]
[2024-11-22 11:37:23,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493974979] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 11:37:23,078 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 11:37:23,078 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-22 11:37:23,078 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349217649]
[2024-11-22 11:37:23,078 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 11:37:23,079 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-22 11:37:23,079 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:23,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-22 11:37:23,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-22 11:37:23,081 INFO  L87              Difference]: Start difference. First operand 1094 states and 1753 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:23,843 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:23,844 INFO  L93              Difference]: Finished difference Result 3866 states and 6114 transitions.
[2024-11-22 11:37:23,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-22 11:37:23,844 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342
[2024-11-22 11:37:23,845 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:23,856 INFO  L225             Difference]: With dead ends: 3866
[2024-11-22 11:37:23,857 INFO  L226             Difference]: Without dead ends: 2876
[2024-11-22 11:37:23,860 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2024-11-22 11:37:23,861 INFO  L432           NwaCegarLoop]: 321 mSDtfsCounter, 926 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:23,862 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 865 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-22 11:37:23,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2876 states.
[2024-11-22 11:37:23,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2086.
[2024-11-22 11:37:23,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2086 states, 1739 states have (on average 1.5434157561817137) internal successors, (2684), 1753 states have internal predecessors, (2684), 328 states have call successors, (328), 18 states have call predecessors, (328), 18 states have return successors, (328), 314 states have call predecessors, (328), 328 states have call successors, (328)
[2024-11-22 11:37:23,985 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 3340 transitions.
[2024-11-22 11:37:23,987 INFO  L78                 Accepts]: Start accepts. Automaton has 2086 states and 3340 transitions. Word has length 342
[2024-11-22 11:37:23,988 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:23,988 INFO  L471      AbstractCegarLoop]: Abstraction has 2086 states and 3340 transitions.
[2024-11-22 11:37:23,989 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-22 11:37:23,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 2086 states and 3340 transitions.
[2024-11-22 11:37:23,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-22 11:37:23,994 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:23,994 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:23,994 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 11:37:23,995 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:23,995 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:23,995 INFO  L85        PathProgramCache]: Analyzing trace with hash 66623133, now seen corresponding path program 1 times
[2024-11-22 11:37:23,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:23,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269030707]
[2024-11-22 11:37:23,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:23,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:24,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:24,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 57 proven. 96 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:24,693 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:24,693 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269030707]
[2024-11-22 11:37:24,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269030707] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:24,695 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168406737]
[2024-11-22 11:37:24,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:24,695 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:24,695 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:24,697 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)
[2024-11-22 11:37:24,699 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-22 11:37:24,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:24,877 INFO  L255         TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:24,883 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:25,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 1513 proven. 24 refuted. 0 times theorem prover too weak. 3767 trivial. 0 not checked.
[2024-11-22 11:37:25,362 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 11:37:25,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 129 proven. 24 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:25,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [168406737] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 11:37:25,685 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 11:37:25,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 15
[2024-11-22 11:37:25,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228710461]
[2024-11-22 11:37:25,686 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 11:37:25,687 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-22 11:37:25,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:25,688 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-22 11:37:25,688 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2024-11-22 11:37:25,689 INFO  L87              Difference]: Start difference. First operand 2086 states and 3340 transitions. Second operand  has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 6 states have call successors, (156), 3 states have call predecessors, (156), 6 states have return successors, (156), 6 states have call predecessors, (156), 6 states have call successors, (156)
[2024-11-22 11:37:26,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:26,291 INFO  L93              Difference]: Finished difference Result 4146 states and 6583 transitions.
[2024-11-22 11:37:26,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-22 11:37:26,292 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 6 states have call successors, (156), 3 states have call predecessors, (156), 6 states have return successors, (156), 6 states have call predecessors, (156), 6 states have call successors, (156) Word has length 342
[2024-11-22 11:37:26,293 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:26,301 INFO  L225             Difference]: With dead ends: 4146
[2024-11-22 11:37:26,301 INFO  L226             Difference]: Without dead ends: 2172
[2024-11-22 11:37:26,304 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650
[2024-11-22 11:37:26,305 INFO  L432           NwaCegarLoop]: 202 mSDtfsCounter, 275 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:26,305 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 797 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-22 11:37:26,307 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2172 states.
[2024-11-22 11:37:26,405 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2134.
[2024-11-22 11:37:26,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2134 states, 1775 states have (on average 1.512112676056338) internal successors, (2684), 1789 states have internal predecessors, (2684), 328 states have call successors, (328), 30 states have call predecessors, (328), 30 states have return successors, (328), 314 states have call predecessors, (328), 328 states have call successors, (328)
[2024-11-22 11:37:26,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3340 transitions.
[2024-11-22 11:37:26,415 INFO  L78                 Accepts]: Start accepts. Automaton has 2134 states and 3340 transitions. Word has length 342
[2024-11-22 11:37:26,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:26,415 INFO  L471      AbstractCegarLoop]: Abstraction has 2134 states and 3340 transitions.
[2024-11-22 11:37:26,416 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 6 states have call successors, (156), 3 states have call predecessors, (156), 6 states have return successors, (156), 6 states have call predecessors, (156), 6 states have call successors, (156)
[2024-11-22 11:37:26,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 2134 states and 3340 transitions.
[2024-11-22 11:37:26,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 344
[2024-11-22 11:37:26,420 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:26,420 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:26,428 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-22 11:37:26,620 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,SelfDestructingSolverStorable6
[2024-11-22 11:37:26,621 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:26,621 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:26,622 INFO  L85        PathProgramCache]: Analyzing trace with hash -1661774309, now seen corresponding path program 1 times
[2024-11-22 11:37:26,622 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:26,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574171709]
[2024-11-22 11:37:26,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:26,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:26,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:27,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 30 proven. 123 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:27,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:27,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574171709]
[2024-11-22 11:37:27,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574171709] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:27,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543154131]
[2024-11-22 11:37:27,301 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:27,301 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:27,301 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:27,303 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)
[2024-11-22 11:37:27,305 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-22 11:37:27,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:27,498 INFO  L255         TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:27,503 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:27,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 1711 proven. 123 refuted. 0 times theorem prover too weak. 3470 trivial. 0 not checked.
[2024-11-22 11:37:27,769 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 11:37:28,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 30 proven. 123 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:28,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [543154131] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 11:37:28,079 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 11:37:28,079 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12
[2024-11-22 11:37:28,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956649570]
[2024-11-22 11:37:28,079 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 11:37:28,080 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-22 11:37:28,080 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:28,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-22 11:37:28,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2024-11-22 11:37:28,081 INFO  L87              Difference]: Start difference. First operand 2134 states and 3340 transitions. Second operand  has 12 states, 12 states have (on average 19.75) internal successors, (237), 12 states have internal predecessors, (237), 5 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 5 states have call predecessors, (146), 5 states have call successors, (146)
[2024-11-22 11:37:28,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:28,856 INFO  L93              Difference]: Finished difference Result 5768 states and 9034 transitions.
[2024-11-22 11:37:28,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-22 11:37:28,857 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 19.75) internal successors, (237), 12 states have internal predecessors, (237), 5 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 5 states have call predecessors, (146), 5 states have call successors, (146) Word has length 343
[2024-11-22 11:37:28,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:28,871 INFO  L225             Difference]: With dead ends: 5768
[2024-11-22 11:37:28,871 INFO  L226             Difference]: Without dead ends: 3754
[2024-11-22 11:37:28,875 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2024-11-22 11:37:28,875 INFO  L432           NwaCegarLoop]: 189 mSDtfsCounter, 877 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:28,876 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 723 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-22 11:37:28,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3754 states.
[2024-11-22 11:37:29,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3694.
[2024-11-22 11:37:29,052 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3694 states, 3197 states have (on average 1.5039099155458242) internal successors, (4808), 3227 states have internal predecessors, (4808), 440 states have call successors, (440), 56 states have call predecessors, (440), 56 states have return successors, (440), 410 states have call predecessors, (440), 440 states have call successors, (440)
[2024-11-22 11:37:29,060 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5688 transitions.
[2024-11-22 11:37:29,063 INFO  L78                 Accepts]: Start accepts. Automaton has 3694 states and 5688 transitions. Word has length 343
[2024-11-22 11:37:29,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:29,064 INFO  L471      AbstractCegarLoop]: Abstraction has 3694 states and 5688 transitions.
[2024-11-22 11:37:29,064 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 19.75) internal successors, (237), 12 states have internal predecessors, (237), 5 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 5 states have call predecessors, (146), 5 states have call successors, (146)
[2024-11-22 11:37:29,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 3694 states and 5688 transitions.
[2024-11-22 11:37:29,068 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 344
[2024-11-22 11:37:29,068 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:29,068 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:29,077 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-22 11:37:29,268 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:29,269 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:29,269 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:29,269 INFO  L85        PathProgramCache]: Analyzing trace with hash 113233053, now seen corresponding path program 1 times
[2024-11-22 11:37:29,270 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:29,270 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542138512]
[2024-11-22 11:37:29,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:29,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:29,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:29,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 30 proven. 123 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:29,780 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:29,780 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542138512]
[2024-11-22 11:37:29,780 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542138512] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:29,780 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479143896]
[2024-11-22 11:37:29,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:29,781 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:29,781 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:29,783 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 11:37:29,783 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-22 11:37:29,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:29,962 INFO  L255         TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:29,967 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:30,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 1711 proven. 123 refuted. 0 times theorem prover too weak. 3470 trivial. 0 not checked.
[2024-11-22 11:37:30,196 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 11:37:30,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 30 proven. 123 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked.
[2024-11-22 11:37:30,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [479143896] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 11:37:30,448 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 11:37:30,448 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12
[2024-11-22 11:37:30,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510612832]
[2024-11-22 11:37:30,449 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 11:37:30,449 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-22 11:37:30,449 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:30,450 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-22 11:37:30,450 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132
[2024-11-22 11:37:30,451 INFO  L87              Difference]: Start difference. First operand 3694 states and 5688 transitions. Second operand  has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 4 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 4 states have call predecessors, (135), 4 states have call successors, (135)
[2024-11-22 11:37:30,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:30,851 INFO  L93              Difference]: Finished difference Result 5571 states and 8590 transitions.
[2024-11-22 11:37:30,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-22 11:37:30,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 4 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 4 states have call predecessors, (135), 4 states have call successors, (135) Word has length 343
[2024-11-22 11:37:30,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:30,865 INFO  L225             Difference]: With dead ends: 5571
[2024-11-22 11:37:30,865 INFO  L226             Difference]: Without dead ends: 3732
[2024-11-22 11:37:30,871 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240
[2024-11-22 11:37:30,872 INFO  L432           NwaCegarLoop]: 199 mSDtfsCounter, 229 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:30,872 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 886 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 11:37:30,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3732 states.
[2024-11-22 11:37:31,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 3694.
[2024-11-22 11:37:31,018 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3694 states, 3197 states have (on average 1.4926493587738505) internal successors, (4772), 3227 states have internal predecessors, (4772), 440 states have call successors, (440), 56 states have call predecessors, (440), 56 states have return successors, (440), 410 states have call predecessors, (440), 440 states have call successors, (440)
[2024-11-22 11:37:31,025 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5652 transitions.
[2024-11-22 11:37:31,027 INFO  L78                 Accepts]: Start accepts. Automaton has 3694 states and 5652 transitions. Word has length 343
[2024-11-22 11:37:31,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:31,027 INFO  L471      AbstractCegarLoop]: Abstraction has 3694 states and 5652 transitions.
[2024-11-22 11:37:31,028 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 4 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 4 states have call predecessors, (135), 4 states have call successors, (135)
[2024-11-22 11:37:31,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 3694 states and 5652 transitions.
[2024-11-22 11:37:31,031 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 345
[2024-11-22 11:37:31,032 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:31,032 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:31,040 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-22 11:37:31,232 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:31,233 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:31,233 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:31,233 INFO  L85        PathProgramCache]: Analyzing trace with hash 1304140050, now seen corresponding path program 1 times
[2024-11-22 11:37:31,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:31,233 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916862928]
[2024-11-22 11:37:31,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:31,234 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:31,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:34,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 687 proven. 18 refuted. 0 times theorem prover too weak. 4599 trivial. 0 not checked.
[2024-11-22 11:37:34,098 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 11:37:34,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916862928]
[2024-11-22 11:37:34,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916862928] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:34,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309513896]
[2024-11-22 11:37:34,099 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:34,099 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:34,099 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:34,102 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 11:37:34,103 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-22 11:37:34,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:34,309 INFO  L255         TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:34,313 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:35,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 1323 proven. 105 refuted. 0 times theorem prover too weak. 3876 trivial. 0 not checked.
[2024-11-22 11:37:35,570 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 11:37:36,033 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309513896] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 11:37:36,034 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-22 11:37:36,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 39
[2024-11-22 11:37:36,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846984548]
[2024-11-22 11:37:36,034 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-22 11:37:36,036 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2024-11-22 11:37:36,036 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 11:37:36,037 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2024-11-22 11:37:36,038 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1786, Unknown=0, NotChecked=0, Total=2070
[2024-11-22 11:37:36,038 INFO  L87              Difference]: Start difference. First operand 3694 states and 5652 transitions. Second operand  has 39 states, 37 states have (on average 4.162162162162162) internal successors, (154), 34 states have internal predecessors, (154), 12 states have call successors, (104), 8 states have call predecessors, (104), 10 states have return successors, (104), 12 states have call predecessors, (104), 12 states have call successors, (104)
[2024-11-22 11:37:38,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 11:37:38,138 INFO  L93              Difference]: Finished difference Result 5850 states and 8851 transitions.
[2024-11-22 11:37:38,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-22 11:37:38,142 INFO  L78                 Accepts]: Start accepts. Automaton has  has 39 states, 37 states have (on average 4.162162162162162) internal successors, (154), 34 states have internal predecessors, (154), 12 states have call successors, (104), 8 states have call predecessors, (104), 10 states have return successors, (104), 12 states have call predecessors, (104), 12 states have call successors, (104) Word has length 344
[2024-11-22 11:37:38,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 11:37:38,151 INFO  L225             Difference]: With dead ends: 5850
[2024-11-22 11:37:38,151 INFO  L226             Difference]: Without dead ends: 2284
[2024-11-22 11:37:38,157 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 967 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=809, Invalid=3747, Unknown=0, NotChecked=0, Total=4556
[2024-11-22 11:37:38,157 INFO  L432           NwaCegarLoop]: 180 mSDtfsCounter, 454 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-22 11:37:38,158 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1245 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-22 11:37:38,160 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2284 states.
[2024-11-22 11:37:38,287 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2246.
[2024-11-22 11:37:38,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2246 states, 1859 states have (on average 1.436256051640667) internal successors, (2670), 1873 states have internal predecessors, (2670), 328 states have call successors, (328), 58 states have call predecessors, (328), 58 states have return successors, (328), 314 states have call predecessors, (328), 328 states have call successors, (328)
[2024-11-22 11:37:38,298 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3326 transitions.
[2024-11-22 11:37:38,303 INFO  L78                 Accepts]: Start accepts. Automaton has 2246 states and 3326 transitions. Word has length 344
[2024-11-22 11:37:38,303 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 11:37:38,303 INFO  L471      AbstractCegarLoop]: Abstraction has 2246 states and 3326 transitions.
[2024-11-22 11:37:38,304 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 39 states, 37 states have (on average 4.162162162162162) internal successors, (154), 34 states have internal predecessors, (154), 12 states have call successors, (104), 8 states have call predecessors, (104), 10 states have return successors, (104), 12 states have call predecessors, (104), 12 states have call successors, (104)
[2024-11-22 11:37:38,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 2246 states and 3326 transitions.
[2024-11-22 11:37:38,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 345
[2024-11-22 11:37:38,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 11:37:38,311 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 11:37:38,319 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-22 11:37:38,511 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-22 11:37:38,512 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 11:37:38,512 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 11:37:38,512 INFO  L85        PathProgramCache]: Analyzing trace with hash 909773264, now seen corresponding path program 1 times
[2024-11-22 11:37:38,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 11:37:38,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822209956]
[2024-11-22 11:37:38,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:38,513 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 11:37:38,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-22 11:37:38,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085779473]
[2024-11-22 11:37:38,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 11:37:38,758 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 11:37:38,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 11:37:38,761 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 11:37:38,762 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-22 11:37:39,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 11:37:39,036 INFO  L255         TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 58 conjuncts are in the unsatisfiable core
[2024-11-22 11:37:39,043 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 11:37:59,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 3151 proven. 168 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked.
[2024-11-22 11:37:59,685 INFO  L311         TraceCheckSpWp]: Computing backward predicates...