./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.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 56998212cbbe54111cbc2f72cf7e227ae5158c3547e0f2e9eaace18cc5cee700
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 22:18:00,345 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 22:18:00,418 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 22:18:00,423 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 22:18:00,424 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 22:18:00,453 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 22:18:00,454 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 22:18:00,454 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 22:18:00,455 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 22:18:00,456 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 22:18:00,457 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 22:18:00,457 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 22:18:00,458 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 22:18:00,459 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 22:18:00,460 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 22:18:00,460 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 22:18:00,460 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 22:18:00,461 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 22:18:00,461 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 22:18:00,461 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 22:18:00,462 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 22:18:00,465 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 22:18:00,466 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 22:18:00,466 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 22:18:00,466 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 22:18:00,466 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 22:18:00,467 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 22:18:00,467 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 22:18:00,467 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 22:18:00,467 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 22:18:00,468 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 22:18:00,468 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 22:18:00,468 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 22:18:00,468 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 22:18:00,468 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 22:18:00,469 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 22:18:00,469 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 22:18:00,469 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 22:18:00,469 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 22:18:00,470 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 22:18:00,471 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 22:18:00,471 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 22:18:00,471 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 -> 56998212cbbe54111cbc2f72cf7e227ae5158c3547e0f2e9eaace18cc5cee700
[2024-11-18 22:18:00,747 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 22:18:00,776 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 22:18:00,779 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 22:18:00,781 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 22:18:00,781 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 22:18:00,782 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i
[2024-11-18 22:18:02,214 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 22:18:02,424 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 22:18:02,424 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i
[2024-11-18 22:18:02,439 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d257cdddf/7d889e7e78144deca3efb988980948fa/FLAG3c7547c63
[2024-11-18 22:18:02,458 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d257cdddf/7d889e7e78144deca3efb988980948fa
[2024-11-18 22:18:02,460 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 22:18:02,462 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 22:18:02,463 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 22:18:02,463 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 22:18:02,471 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 22:18:02,471 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,472 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dec074f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02, skipping insertion in model container
[2024-11-18 22:18:02,473 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,497 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 22:18:02,676 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929]
[2024-11-18 22:18:02,715 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 22:18:02,726 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 22:18:02,737 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929]
[2024-11-18 22:18:02,757 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 22:18:02,775 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 22:18:02,775 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02 WrapperNode
[2024-11-18 22:18:02,776 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 22:18:02,777 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 22:18:02,777 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 22:18:02,777 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 22:18:02,783 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,791 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,821 INFO  L138                Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115
[2024-11-18 22:18:02,822 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 22:18:02,822 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 22:18:02,823 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 22:18:02,823 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 22:18:02,833 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,833 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,836 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,849 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-18 22:18:02,849 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,850 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,855 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,858 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,860 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,861 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,868 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 22:18:02,869 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 22:18:02,869 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 22:18:02,869 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 22:18:02,870 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (1/1) ...
[2024-11-18 22:18:02,879 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 22:18:02,896 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 22:18:02,916 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-18 22:18:02,919 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-18 22:18:02,970 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 22:18:02,970 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 22:18:02,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 22:18:02,972 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 22:18:02,972 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 22:18:02,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 22:18:03,083 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 22:18:03,085 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 22:18:03,394 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-18 22:18:03,395 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 22:18:03,407 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 22:18:03,408 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 22:18:03,408 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:18:03 BoogieIcfgContainer
[2024-11-18 22:18:03,408 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 22:18:03,410 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 22:18:03,410 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 22:18:03,412 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 22:18:03,413 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:18:02" (1/3) ...
[2024-11-18 22:18:03,413 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a36208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:18:03, skipping insertion in model container
[2024-11-18 22:18:03,413 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:18:02" (2/3) ...
[2024-11-18 22:18:03,414 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a36208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:18:03, skipping insertion in model container
[2024-11-18 22:18:03,414 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:18:03" (3/3) ...
[2024-11-18 22:18:03,415 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-96.i
[2024-11-18 22:18:03,431 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 22:18:03,431 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 22:18:03,479 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 22:18:03,484 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;@469f1e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 22:18:03,484 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 22:18:03,488 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 22:18:03,499 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-18 22:18:03,500 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:03,500 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:03,501 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:03,506 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:03,506 INFO  L85        PathProgramCache]: Analyzing trace with hash 1589987544, now seen corresponding path program 1 times
[2024-11-18 22:18:03,513 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:03,513 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957158202]
[2024-11-18 22:18:03,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:03,514 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:03,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:03,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-18 22:18:03,790 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:03,790 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957158202]
[2024-11-18 22:18:03,791 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957158202] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 22:18:03,792 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482355155]
[2024-11-18 22:18:03,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:03,793 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 22:18:03,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 22:18:03,794 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 22:18:03,795 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 22:18:03,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:03,954 INFO  L255         TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 22:18:03,964 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 22:18:03,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-18 22:18:03,991 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 22:18:03,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482355155] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 22:18:03,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 22:18:03,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 22:18:03,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923831853]
[2024-11-18 22:18:03,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 22:18:04,005 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 22:18:04,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 22:18:04,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 22:18:04,032 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 22:18:04,034 INFO  L87              Difference]: Start difference. First operand  has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-18 22:18:04,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 22:18:04,071 INFO  L93              Difference]: Finished difference Result 101 states and 172 transitions.
[2024-11-18 22:18:04,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 22:18:04,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113
[2024-11-18 22:18:04,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 22:18:04,082 INFO  L225             Difference]: With dead ends: 101
[2024-11-18 22:18:04,082 INFO  L226             Difference]: Without dead ends: 50
[2024-11-18 22:18:04,087 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 22:18:04,091 INFO  L432           NwaCegarLoop]: 73 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, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 22:18:04,094 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 22:18:04,111 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-18 22:18:04,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-11-18 22:18:04,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 22:18:04,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions.
[2024-11-18 22:18:04,146 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 113
[2024-11-18 22:18:04,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 22:18:04,147 INFO  L471      AbstractCegarLoop]: Abstraction has 50 states and 73 transitions.
[2024-11-18 22:18:04,147 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-18 22:18:04,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions.
[2024-11-18 22:18:04,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-18 22:18:04,152 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:04,153 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:04,173 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 22:18:04,354 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-18 22:18:04,355 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:04,357 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:04,358 INFO  L85        PathProgramCache]: Analyzing trace with hash -1412679144, now seen corresponding path program 1 times
[2024-11-18 22:18:04,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:04,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203780836]
[2024-11-18 22:18:04,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:04,359 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:04,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:07,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-18 22:18:07,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:07,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203780836]
[2024-11-18 22:18:07,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203780836] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 22:18:07,339 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 22:18:07,340 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 22:18:07,340 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548112778]
[2024-11-18 22:18:07,340 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 22:18:07,341 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 22:18:07,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 22:18:07,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 22:18:07,344 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-18 22:18:07,344 INFO  L87              Difference]: Start difference. First operand 50 states and 73 transitions. Second operand  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:07,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 22:18:07,580 INFO  L93              Difference]: Finished difference Result 118 states and 171 transitions.
[2024-11-18 22:18:07,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 22:18:07,582 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-18 22:18:07,583 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 22:18:07,584 INFO  L225             Difference]: With dead ends: 118
[2024-11-18 22:18:07,584 INFO  L226             Difference]: Without dead ends: 71
[2024-11-18 22:18:07,585 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-18 22:18:07,587 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 22 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 22:18:07,588 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 324 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 22:18:07,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2024-11-18 22:18:07,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59.
[2024-11-18 22:18:07,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-18 22:18:07,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 85 transitions.
[2024-11-18 22:18:07,603 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 85 transitions. Word has length 113
[2024-11-18 22:18:07,604 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 22:18:07,604 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 85 transitions.
[2024-11-18 22:18:07,605 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:07,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions.
[2024-11-18 22:18:07,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-18 22:18:07,607 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:07,607 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:07,607 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 22:18:07,608 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:07,608 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:07,608 INFO  L85        PathProgramCache]: Analyzing trace with hash -2092737514, now seen corresponding path program 1 times
[2024-11-18 22:18:07,608 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:07,609 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560784052]
[2024-11-18 22:18:07,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:07,610 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:07,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:07,801 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-18 22:18:07,801 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:07,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560784052]
[2024-11-18 22:18:07,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560784052] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 22:18:07,802 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 22:18:07,802 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 22:18:07,802 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080569861]
[2024-11-18 22:18:07,802 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 22:18:07,803 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 22:18:07,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 22:18:07,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 22:18:07,806 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 22:18:07,806 INFO  L87              Difference]: Start difference. First operand 59 states and 85 transitions. Second operand  has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:07,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 22:18:07,917 INFO  L93              Difference]: Finished difference Result 174 states and 249 transitions.
[2024-11-18 22:18:07,917 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 22:18:07,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-18 22:18:07,919 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 22:18:07,921 INFO  L225             Difference]: With dead ends: 174
[2024-11-18 22:18:07,923 INFO  L226             Difference]: Without dead ends: 118
[2024-11-18 22:18:07,923 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-18 22:18:07,924 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 61 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 22:18:07,927 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 198 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 22:18:07,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2024-11-18 22:18:07,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108.
[2024-11-18 22:18:07,948 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 108 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 22:18:07,949 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions.
[2024-11-18 22:18:07,951 INFO  L78                 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 113
[2024-11-18 22:18:07,952 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 22:18:07,952 INFO  L471      AbstractCegarLoop]: Abstraction has 108 states and 156 transitions.
[2024-11-18 22:18:07,952 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:07,953 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions.
[2024-11-18 22:18:07,955 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-18 22:18:07,956 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:07,956 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:07,956 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 22:18:07,957 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:07,957 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:07,958 INFO  L85        PathProgramCache]: Analyzing trace with hash 67697332, now seen corresponding path program 1 times
[2024-11-18 22:18:07,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:07,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134988140]
[2024-11-18 22:18:07,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:07,959 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:07,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:10,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-18 22:18:10,272 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:10,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134988140]
[2024-11-18 22:18:10,275 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134988140] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 22:18:10,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 22:18:10,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-18 22:18:10,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294122440]
[2024-11-18 22:18:10,277 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 22:18:10,277 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-18 22:18:10,278 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 22:18:10,279 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-18 22:18:10,279 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-18 22:18:10,279 INFO  L87              Difference]: Start difference. First operand 108 states and 156 transitions. Second operand  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:10,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 22:18:10,502 INFO  L93              Difference]: Finished difference Result 220 states and 317 transitions.
[2024-11-18 22:18:10,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-18 22:18:10,503 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114
[2024-11-18 22:18:10,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 22:18:10,504 INFO  L225             Difference]: With dead ends: 220
[2024-11-18 22:18:10,505 INFO  L226             Difference]: Without dead ends: 115
[2024-11-18 22:18:10,505 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-18 22:18:10,509 INFO  L432           NwaCegarLoop]: 64 mSDtfsCounter, 6 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 22:18:10,510 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 346 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 22:18:10,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2024-11-18 22:18:10,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102.
[2024-11-18 22:18:10,522 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 63 states have internal predecessors, (75), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 22:18:10,523 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions.
[2024-11-18 22:18:10,524 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 114
[2024-11-18 22:18:10,524 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 22:18:10,524 INFO  L471      AbstractCegarLoop]: Abstraction has 102 states and 147 transitions.
[2024-11-18 22:18:10,525 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:10,525 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions.
[2024-11-18 22:18:10,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 226
[2024-11-18 22:18:10,528 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:10,528 INFO  L215           NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:10,528 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 22:18:10,528 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:10,529 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:10,529 INFO  L85        PathProgramCache]: Analyzing trace with hash -1892367389, now seen corresponding path program 1 times
[2024-11-18 22:18:10,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:10,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200679001]
[2024-11-18 22:18:10,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:10,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:10,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:13,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 2557 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2550 trivial. 0 not checked.
[2024-11-18 22:18:13,866 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:13,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200679001]
[2024-11-18 22:18:13,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200679001] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 22:18:13,867 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 22:18:13,867 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-18 22:18:13,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246948942]
[2024-11-18 22:18:13,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 22:18:13,868 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-18 22:18:13,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 22:18:13,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-18 22:18:13,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-18 22:18:13,869 INFO  L87              Difference]: Start difference. First operand 102 states and 147 transitions. Second operand  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:14,075 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 22:18:14,075 INFO  L93              Difference]: Finished difference Result 167 states and 240 transitions.
[2024-11-18 22:18:14,078 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-18 22:18:14,079 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 225
[2024-11-18 22:18:14,079 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 22:18:14,081 INFO  L225             Difference]: With dead ends: 167
[2024-11-18 22:18:14,081 INFO  L226             Difference]: Without dead ends: 111
[2024-11-18 22:18:14,081 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-18 22:18:14,085 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 22 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 22:18:14,085 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 334 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 22:18:14,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2024-11-18 22:18:14,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101.
[2024-11-18 22:18:14,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 62 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-11-18 22:18:14,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 145 transitions.
[2024-11-18 22:18:14,107 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 145 transitions. Word has length 225
[2024-11-18 22:18:14,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 22:18:14,108 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 145 transitions.
[2024-11-18 22:18:14,108 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-18 22:18:14,108 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 145 transitions.
[2024-11-18 22:18:14,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 227
[2024-11-18 22:18:14,113 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 22:18:14,113 INFO  L215           NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 22:18:14,113 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 22:18:14,113 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 22:18:14,115 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 22:18:14,115 INFO  L85        PathProgramCache]: Analyzing trace with hash -1917736375, now seen corresponding path program 1 times
[2024-11-18 22:18:14,115 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 22:18:14,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331197970]
[2024-11-18 22:18:14,116 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:14,116 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 22:18:14,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:15,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 2558 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked.
[2024-11-18 22:18:15,819 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 22:18:15,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331197970]
[2024-11-18 22:18:15,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331197970] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 22:18:15,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382343679]
[2024-11-18 22:18:15,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 22:18:15,823 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 22:18:15,824 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 22:18:15,825 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)
[2024-11-18 22:18:15,827 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 22:18:15,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 22:18:15,946 INFO  L255         TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-18 22:18:15,955 INFO  L278         TraceCheckSpWp]: Computing forward predicates...