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


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
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-92.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 23:14:59,209 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 23:14:59,283 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 23:14:59,288 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 23:14:59,290 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 23:14:59,310 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 23:14:59,310 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 23:14:59,310 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 23:14:59,311 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 23:14:59,311 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 23:14:59,312 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 23:14:59,312 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 23:14:59,313 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 23:14:59,313 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 23:14:59,313 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 23:14:59,313 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 23:14:59,314 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 23:14:59,314 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 23:14:59,314 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 23:14:59,314 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 23:14:59,314 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 23:14:59,317 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 23:14:59,317 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 23:14:59,318 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 23:14:59,318 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 23:14:59,318 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 23:14:59,318 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 23:14:59,318 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 23:14:59,319 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 23:14:59,319 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 23:14:59,319 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 23:14:59,319 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 23:14:59,319 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 23:14:59,319 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 23:14:59,320 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 23:14:59,322 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 23:14:59,322 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c
[2024-11-08 23:14:59,521 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 23:14:59,540 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 23:14:59,542 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 23:14:59,543 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 23:14:59,543 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 23:14:59,544 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-08 23:15:00,785 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 23:15:00,950 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 23:15:00,951 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-08 23:15:00,958 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ae86827/f16859f64d8f467c8f56c6f2f23d2932/FLAG582a07703
[2024-11-08 23:15:01,340 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ae86827/f16859f64d8f467c8f56c6f2f23d2932
[2024-11-08 23:15:01,342 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 23:15:01,343 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 23:15:01,354 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 23:15:01,354 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 23:15:01,358 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 23:15:01,359 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,359 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165b2a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01, skipping insertion in model container
[2024-11-08 23:15:01,359 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,377 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 23:15:01,507 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929]
[2024-11-08 23:15:01,535 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 23:15:01,543 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 23:15:01,552 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929]
[2024-11-08 23:15:01,574 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 23:15:01,588 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 23:15:01,589 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01 WrapperNode
[2024-11-08 23:15:01,589 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 23:15:01,591 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 23:15:01,591 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 23:15:01,591 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 23:15:01,596 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,605 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,629 INFO  L138                Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143
[2024-11-08 23:15:01,630 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 23:15:01,630 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 23:15:01,631 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 23:15:01,631 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 23:15:01,643 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,643 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,646 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,656 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].
[2024-11-08 23:15:01,657 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,657 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,661 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,663 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,667 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,668 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,670 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 23:15:01,671 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 23:15:01,671 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 23:15:01,671 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 23:15:01,672 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (1/1) ...
[2024-11-08 23:15:01,678 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 23:15:01,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 23:15:01,705 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)
[2024-11-08 23:15:01,711 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
[2024-11-08 23:15:01,741 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 23:15:01,742 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 23:15:01,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 23:15:01,742 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 23:15:01,742 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 23:15:01,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 23:15:01,814 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 23:15:01,817 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 23:15:02,076 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-08 23:15:02,077 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 23:15:02,088 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 23:15:02,090 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 23:15:02,090 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:02 BoogieIcfgContainer
[2024-11-08 23:15:02,091 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 23:15:02,092 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 23:15:02,093 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 23:15:02,095 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 23:15:02,095 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:15:01" (1/3) ...
[2024-11-08 23:15:02,096 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d513cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:15:02, skipping insertion in model container
[2024-11-08 23:15:02,097 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:01" (2/3) ...
[2024-11-08 23:15:02,097 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d513cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:15:02, skipping insertion in model container
[2024-11-08 23:15:02,097 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:02" (3/3) ...
[2024-11-08 23:15:02,099 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i
[2024-11-08 23:15:02,114 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 23:15:02,114 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 23:15:02,174 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 23:15:02,181 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;@1cad3f44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 23:15:02,182 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 23:15:02,185 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 65 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 42 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-08 23:15:02,196 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-08 23:15:02,196 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 23:15:02,197 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 23:15:02,198 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 23:15:02,203 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 23:15:02,203 INFO  L85        PathProgramCache]: Analyzing trace with hash 627929846, now seen corresponding path program 1 times
[2024-11-08 23:15:02,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 23:15:02,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889362440]
[2024-11-08 23:15:02,210 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:02,210 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 23:15:02,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,408 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 23:15:02,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,416 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-08 23:15:02,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,428 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 23:15:02,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,435 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-08 23:15:02,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,443 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-08 23:15:02,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,449 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 23:15:02,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,456 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 23:15:02,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,463 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 23:15:02,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,471 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-08 23:15:02,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,475 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 23:15:02,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,480 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-08 23:15:02,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,485 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-08 23:15:02,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,488 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 23:15:02,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,495 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 23:15:02,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,511 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 23:15:02,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,519 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-08 23:15:02,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,525 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 23:15:02,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,528 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-08 23:15:02,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,533 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-08 23:15:02,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,536 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-08 23:15:02,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,538 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-08 23:15:02,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:02,545 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-08 23:15:02,546 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 23:15:02,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889362440]
[2024-11-08 23:15:02,546 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889362440] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 23:15:02,547 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 23:15:02,547 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 23:15:02,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438903036]
[2024-11-08 23:15:02,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 23:15:02,557 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 23:15:02,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 23:15:02,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 23:15:02,596 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 23:15:02,598 INFO  L87              Difference]: Start difference. First operand  has 65 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 42 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-08 23:15:02,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 23:15:02,618 INFO  L93              Difference]: Finished difference Result 123 states and 207 transitions.
[2024-11-08 23:15:02,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-08 23:15:02,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133
[2024-11-08 23:15:02,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 23:15:02,625 INFO  L225             Difference]: With dead ends: 123
[2024-11-08 23:15:02,625 INFO  L226             Difference]: Without dead ends: 61
[2024-11-08 23:15:02,628 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 23:15:02,631 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 23:15:02,631 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 23:15:02,643 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2024-11-08 23:15:02,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61.
[2024-11-08 23:15:02,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-08 23:15:02,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions.
[2024-11-08 23:15:02,669 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 133
[2024-11-08 23:15:02,670 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 23:15:02,670 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 89 transitions.
[2024-11-08 23:15:02,671 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-08 23:15:02,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions.
[2024-11-08 23:15:02,676 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2024-11-08 23:15:02,676 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 23:15:02,676 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 23:15:02,677 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 23:15:02,677 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 23:15:02,677 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 23:15:02,677 INFO  L85        PathProgramCache]: Analyzing trace with hash 942487928, now seen corresponding path program 1 times
[2024-11-08 23:15:02,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 23:15:02,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742525884]
[2024-11-08 23:15:02,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:02,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 23:15:02,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,027 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 23:15:03,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,034 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-08 23:15:03,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,036 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 23:15:03,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,037 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-08 23:15:03,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,039 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-08 23:15:03,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,046 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 23:15:03,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,048 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 23:15:03,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,049 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 23:15:03,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,051 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-08 23:15:03,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,052 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 23:15:03,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,054 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-08 23:15:03,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,056 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-08 23:15:03,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,058 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 23:15:03,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,059 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 23:15:03,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,061 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 23:15:03,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,063 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-08 23:15:03,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,064 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 23:15:03,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,066 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-08 23:15:03,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,068 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-08 23:15:03,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,070 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-08 23:15:03,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,072 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-08 23:15:03,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-08 23:15:03,077 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 23:15:03,077 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742525884]
[2024-11-08 23:15:03,077 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742525884] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 23:15:03,077 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 23:15:03,078 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 23:15:03,078 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142269256]
[2024-11-08 23:15:03,078 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 23:15:03,079 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 23:15:03,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 23:15:03,082 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 23:15:03,082 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 23:15:03,082 INFO  L87              Difference]: Start difference. First operand 61 states and 89 transitions. Second operand  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-08 23:15:03,229 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 23:15:03,230 INFO  L93              Difference]: Finished difference Result 121 states and 177 transitions.
[2024-11-08 23:15:03,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 23:15:03,233 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 133
[2024-11-08 23:15:03,234 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 23:15:03,235 INFO  L225             Difference]: With dead ends: 121
[2024-11-08 23:15:03,236 INFO  L226             Difference]: Without dead ends: 63
[2024-11-08 23:15:03,237 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 23:15:03,238 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 22 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 23:15:03,239 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 184 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 23:15:03,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-08 23:15:03,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61.
[2024-11-08 23:15:03,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-08 23:15:03,254 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions.
[2024-11-08 23:15:03,254 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 133
[2024-11-08 23:15:03,255 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 23:15:03,256 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 88 transitions.
[2024-11-08 23:15:03,256 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-08 23:15:03,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions.
[2024-11-08 23:15:03,257 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-08 23:15:03,257 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 23:15:03,257 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 23:15:03,258 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 23:15:03,258 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 23:15:03,258 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 23:15:03,258 INFO  L85        PathProgramCache]: Analyzing trace with hash -1341353581, now seen corresponding path program 1 times
[2024-11-08 23:15:03,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 23:15:03,259 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829714697]
[2024-11-08 23:15:03,259 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:03,259 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 23:15:03,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,547 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 23:15:03,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,549 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-08 23:15:03,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,551 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 23:15:03,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,552 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-08 23:15:03,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,554 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-08 23:15:03,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,555 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 23:15:03,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,556 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 23:15:03,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,558 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 23:15:03,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,559 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-08 23:15:03,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,561 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 23:15:03,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,562 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-08 23:15:03,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,563 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-08 23:15:03,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,565 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 23:15:03,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,566 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 23:15:03,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,571 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 23:15:03,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,572 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-08 23:15:03,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,573 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 23:15:03,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,575 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-08 23:15:03,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,579 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2024-11-08 23:15:03,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,602 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-08 23:15:03,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,607 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2024-11-08 23:15:03,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,611 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-08 23:15:03,613 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 23:15:03,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829714697]
[2024-11-08 23:15:03,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829714697] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 23:15:03,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148973659]
[2024-11-08 23:15:03,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:03,614 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 23:15:03,614 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 23:15:03,616 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)
[2024-11-08 23:15:03,617 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 23:15:03,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:03,738 INFO  L255         TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 23:15:03,745 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 23:15:03,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked.
[2024-11-08 23:15:03,835 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 23:15:04,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-08 23:15:04,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148973659] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 23:15:04,056 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 23:15:04,058 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2024-11-08 23:15:04,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684383871]
[2024-11-08 23:15:04,059 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 23:15:04,059 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 23:15:04,059 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 23:15:04,060 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 23:15:04,060 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-08 23:15:04,062 INFO  L87              Difference]: Start difference. First operand 61 states and 88 transitions. Second operand  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-08 23:15:04,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 23:15:04,533 INFO  L93              Difference]: Finished difference Result 257 states and 361 transitions.
[2024-11-08 23:15:04,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-08 23:15:04,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 135
[2024-11-08 23:15:04,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 23:15:04,539 INFO  L225             Difference]: With dead ends: 257
[2024-11-08 23:15:04,539 INFO  L226             Difference]: Without dead ends: 199
[2024-11-08 23:15:04,540 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702
[2024-11-08 23:15:04,543 INFO  L432           NwaCegarLoop]: 106 mSDtfsCounter, 201 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 23:15:04,544 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 387 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 23:15:04,544 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-11-08 23:15:04,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 67.
[2024-11-08 23:15:04,563 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-08 23:15:04,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions.
[2024-11-08 23:15:04,566 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 135
[2024-11-08 23:15:04,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 23:15:04,567 INFO  L471      AbstractCegarLoop]: Abstraction has 67 states and 93 transitions.
[2024-11-08 23:15:04,567 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2024-11-08 23:15:04,567 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions.
[2024-11-08 23:15:04,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-08 23:15:04,571 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 23:15:04,571 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 23:15:04,586 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 23:15:04,772 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 23:15:04,772 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 23:15:04,773 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 23:15:04,773 INFO  L85        PathProgramCache]: Analyzing trace with hash -661295211, now seen corresponding path program 1 times
[2024-11-08 23:15:04,773 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 23:15:04,773 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552767710]
[2024-11-08 23:15:04,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:04,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 23:15:04,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 23:15:04,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324785116]
[2024-11-08 23:15:04,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:04,831 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 23:15:04,831 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 23:15:04,833 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)
[2024-11-08 23:15:04,835 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 23:15:04,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:04,907 INFO  L255         TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-08 23:15:04,912 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 23:15:11,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-08 23:15:11,991 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 23:15:11,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 23:15:11,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552767710]
[2024-11-08 23:15:11,992 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 23:15:11,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324785116]
[2024-11-08 23:15:11,994 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [324785116] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 23:15:11,994 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 23:15:11,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2024-11-08 23:15:11,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019026260]
[2024-11-08 23:15:11,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 23:15:11,995 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-08 23:15:11,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 23:15:11,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-08 23:15:11,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2024-11-08 23:15:11,996 INFO  L87              Difference]: Start difference. First operand 67 states and 93 transitions. Second operand  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-08 23:15:12,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 23:15:12,555 INFO  L93              Difference]: Finished difference Result 119 states and 155 transitions.
[2024-11-08 23:15:12,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-08 23:15:12,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 135
[2024-11-08 23:15:12,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 23:15:12,557 INFO  L225             Difference]: With dead ends: 119
[2024-11-08 23:15:12,557 INFO  L226             Difference]: Without dead ends: 117
[2024-11-08 23:15:12,557 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2024-11-08 23:15:12,558 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 23:15:12,558 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 695 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 23:15:12,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117 states.
[2024-11-08 23:15:12,572 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103.
[2024-11-08 23:15:12,573 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 75 states have internal predecessors, (89), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-08 23:15:12,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions.
[2024-11-08 23:15:12,577 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 135
[2024-11-08 23:15:12,577 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 23:15:12,577 INFO  L471      AbstractCegarLoop]: Abstraction has 103 states and 139 transitions.
[2024-11-08 23:15:12,577 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-08 23:15:12,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions.
[2024-11-08 23:15:12,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-08 23:15:12,578 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 23:15:12,578 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 23:15:12,591 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 23:15:12,779 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2024-11-08 23:15:12,779 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 23:15:12,780 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 23:15:12,780 INFO  L85        PathProgramCache]: Analyzing trace with hash -640289003, now seen corresponding path program 1 times
[2024-11-08 23:15:12,780 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 23:15:12,780 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204320402]
[2024-11-08 23:15:12,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:12,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 23:15:12,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 23:15:12,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597399146]
[2024-11-08 23:15:12,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 23:15:12,832 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 23:15:12,832 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 23:15:12,834 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)
[2024-11-08 23:15:12,835 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 23:15:12,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 23:15:12,994 INFO  L255         TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 56 conjuncts are in the unsatisfiable core
[2024-11-08 23:15:13,000 INFO  L278         TraceCheckSpWp]: Computing forward predicates...