./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.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_variablewrapping_wrapper-s_file-83.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 e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-19 01:11:36,699 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 01:11:36,759 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 01:11:36,764 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 01:11:36,764 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 01:11:36,798 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 01:11:36,799 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 01:11:36,799 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 01:11:36,800 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 01:11:36,803 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 01:11:36,803 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 01:11:36,804 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 01:11:36,804 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 01:11:36,805 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 01:11:36,805 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 01:11:36,806 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 01:11:36,807 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 01:11:36,807 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 01:11:36,807 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 01:11:36,807 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 01:11:36,808 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 01:11:36,808 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 01:11:36,808 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 01:11:36,809 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 01:11:36,809 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 01:11:36,809 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 01:11:36,810 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 01:11:36,810 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 01:11:36,810 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 01:11:36,810 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 01:11:36,811 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 01:11:36,811 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 01:11:36,811 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 01:11:36,812 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 01:11:36,812 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 01:11:36,813 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 01:11:36,813 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 01:11:36,813 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 01:11:36,814 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 01:11:36,814 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 01:11:36,814 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 01:11:36,815 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 01:11:36,815 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 -> e012c3f089ce2459bf8c485ba1c0fe1abfe61f524338fc8aecd21133749baa09
[2024-11-19 01:11:37,062 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 01:11:37,089 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 01:11:37,093 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 01:11:37,094 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 01:11:37,095 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 01:11:37,097 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i
[2024-11-19 01:11:38,596 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 01:11:38,816 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 01:11:38,817 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-83.i
[2024-11-19 01:11:38,830 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b4275c3/9bd20a1c1bc14f82a56d54e22a26ffc4/FLAG5efa4e764
[2024-11-19 01:11:38,842 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b4275c3/9bd20a1c1bc14f82a56d54e22a26ffc4
[2024-11-19 01:11:38,844 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 01:11:38,846 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 01:11:38,847 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 01:11:38,848 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 01:11:38,852 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 01:11:38,853 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:11:38" (1/1) ...
[2024-11-19 01:11:38,853 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133aad6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:38, skipping insertion in model container
[2024-11-19 01:11:38,854 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:11:38" (1/1) ...
[2024-11-19 01:11:38,881 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 01:11:39,097 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_variablewrapping_wrapper-s_file-83.i[916,929]
[2024-11-19 01:11:39,184 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 01:11:39,198 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 01:11:39,210 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_variablewrapping_wrapper-s_file-83.i[916,929]
[2024-11-19 01:11:39,269 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 01:11:39,338 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 01:11:39,339 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39 WrapperNode
[2024-11-19 01:11:39,340 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 01:11:39,341 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 01:11:39,342 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 01:11:39,342 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 01:11:39,349 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,370 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,434 INFO  L138                Inliner]: procedures = 30, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512
[2024-11-19 01:11:39,434 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 01:11:39,435 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 01:11:39,435 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 01:11:39,435 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 01:11:39,461 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,461 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,471 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,487 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS
[2024-11-19 01:11:39,487 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,487 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,509 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,517 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,521 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,524 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,529 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 01:11:39,534 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 01:11:39,534 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 01:11:39,535 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 01:11:39,535 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (1/1) ...
[2024-11-19 01:11:39,545 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 01:11:39,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 01:11:39,582 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)
[2024-11-19 01:11:39,587 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
[2024-11-19 01:11:39,635 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 01:11:39,636 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~real
[2024-11-19 01:11:39,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2024-11-19 01:11:39,637 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real
[2024-11-19 01:11:39,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-11-19 01:11:39,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real
[2024-11-19 01:11:39,637 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-11-19 01:11:39,639 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-19 01:11:39,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-19 01:11:39,639 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-19 01:11:39,639 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 01:11:39,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 01:11:39,772 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 01:11:39,774 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 01:11:40,344 INFO  L?                        ?]: Removed 139 outVars from TransFormulas that were not future-live.
[2024-11-19 01:11:40,344 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 01:11:40,364 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 01:11:40,364 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 01:11:40,365 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:11:40 BoogieIcfgContainer
[2024-11-19 01:11:40,365 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 01:11:40,369 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 01:11:40,369 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 01:11:40,373 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 01:11:40,374 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:11:38" (1/3) ...
[2024-11-19 01:11:40,374 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfc82a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:11:40, skipping insertion in model container
[2024-11-19 01:11:40,375 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:11:39" (2/3) ...
[2024-11-19 01:11:40,376 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfc82a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:11:40, skipping insertion in model container
[2024-11-19 01:11:40,376 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:11:40" (3/3) ...
[2024-11-19 01:11:40,378 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-83.i
[2024-11-19 01:11:40,395 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 01:11:40,395 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 01:11:40,464 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 01:11:40,471 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;@3cac6411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 01:11:40,471 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 01:11:40,475 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:40,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-19 01:11:40,486 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:40,487 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:40,488 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:40,493 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:40,493 INFO  L85        PathProgramCache]: Analyzing trace with hash 1804544545, now seen corresponding path program 1 times
[2024-11-19 01:11:40,500 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:40,500 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499261012]
[2024-11-19 01:11:40,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:40,501 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:40,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:41,176 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:41,178 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:41,179 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499261012]
[2024-11-19 01:11:41,179 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499261012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:41,180 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:41,180 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 01:11:41,181 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611559410]
[2024-11-19 01:11:41,182 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:41,187 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 01:11:41,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:41,215 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 01:11:41,216 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:41,218 INFO  L87              Difference]: Start difference. First operand  has 112 states, 98 states have (on average 1.469387755102041) internal successors, (144), 99 states have internal predecessors, (144), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:41,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:41,307 INFO  L93              Difference]: Finished difference Result 220 states and 341 transitions.
[2024-11-19 01:11:41,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 01:11:41,312 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106
[2024-11-19 01:11:41,313 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:41,323 INFO  L225             Difference]: With dead ends: 220
[2024-11-19 01:11:41,324 INFO  L226             Difference]: Without dead ends: 111
[2024-11-19 01:11:41,328 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:41,333 INFO  L432           NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:41,334 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 01:11:41,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2024-11-19 01:11:41,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110.
[2024-11-19 01:11:41,373 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 97 states have internal predecessors, (133), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:41,375 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 155 transitions.
[2024-11-19 01:11:41,377 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 155 transitions. Word has length 106
[2024-11-19 01:11:41,378 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:41,379 INFO  L471      AbstractCegarLoop]: Abstraction has 110 states and 155 transitions.
[2024-11-19 01:11:41,379 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:41,379 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions.
[2024-11-19 01:11:41,383 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-19 01:11:41,383 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:41,384 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:41,384 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 01:11:41,384 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:41,385 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:41,385 INFO  L85        PathProgramCache]: Analyzing trace with hash -1810364381, now seen corresponding path program 1 times
[2024-11-19 01:11:41,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:41,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098996527]
[2024-11-19 01:11:41,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:41,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:41,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:41,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:41,657 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:41,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098996527]
[2024-11-19 01:11:41,658 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098996527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:41,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:41,659 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 01:11:41,659 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998931189]
[2024-11-19 01:11:41,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:41,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 01:11:41,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:41,662 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 01:11:41,662 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:41,664 INFO  L87              Difference]: Start difference. First operand 110 states and 155 transitions. Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:41,712 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:41,713 INFO  L93              Difference]: Finished difference Result 220 states and 311 transitions.
[2024-11-19 01:11:41,717 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 01:11:41,717 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106
[2024-11-19 01:11:41,718 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:41,721 INFO  L225             Difference]: With dead ends: 220
[2024-11-19 01:11:41,722 INFO  L226             Difference]: Without dead ends: 113
[2024-11-19 01:11:41,723 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:41,725 INFO  L432           NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:41,726 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 440 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 01:11:41,728 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2024-11-19 01:11:41,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112.
[2024-11-19 01:11:41,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:41,750 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 157 transitions.
[2024-11-19 01:11:41,751 INFO  L78                 Accepts]: Start accepts. Automaton has 112 states and 157 transitions. Word has length 106
[2024-11-19 01:11:41,751 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:41,752 INFO  L471      AbstractCegarLoop]: Abstraction has 112 states and 157 transitions.
[2024-11-19 01:11:41,752 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:41,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 112 states and 157 transitions.
[2024-11-19 01:11:41,754 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-19 01:11:41,756 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:41,759 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:41,760 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 01:11:41,760 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:41,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:41,760 INFO  L85        PathProgramCache]: Analyzing trace with hash -35357019, now seen corresponding path program 1 times
[2024-11-19 01:11:41,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:41,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202627933]
[2024-11-19 01:11:41,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:41,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:41,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:42,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:42,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:42,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202627933]
[2024-11-19 01:11:42,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202627933] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:42,007 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:42,007 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 01:11:42,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750615069]
[2024-11-19 01:11:42,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:42,010 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 01:11:42,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:42,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 01:11:42,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:42,012 INFO  L87              Difference]: Start difference. First operand 112 states and 157 transitions. Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:42,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:42,056 INFO  L93              Difference]: Finished difference Result 224 states and 315 transitions.
[2024-11-19 01:11:42,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 01:11:42,057 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106
[2024-11-19 01:11:42,058 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:42,061 INFO  L225             Difference]: With dead ends: 224
[2024-11-19 01:11:42,062 INFO  L226             Difference]: Without dead ends: 115
[2024-11-19 01:11:42,063 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:42,064 INFO  L432           NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:42,066 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 442 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 01:11:42,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2024-11-19 01:11:42,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114.
[2024-11-19 01:11:42,079 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:42,080 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions.
[2024-11-19 01:11:42,082 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 106
[2024-11-19 01:11:42,083 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:42,083 INFO  L471      AbstractCegarLoop]: Abstraction has 114 states and 159 transitions.
[2024-11-19 01:11:42,084 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:42,084 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions.
[2024-11-19 01:11:42,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-19 01:11:42,089 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:42,090 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:42,090 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 01:11:42,090 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:42,091 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:42,091 INFO  L85        PathProgramCache]: Analyzing trace with hash -33509977, now seen corresponding path program 1 times
[2024-11-19 01:11:42,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:42,091 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97360426]
[2024-11-19 01:11:42,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:42,092 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:42,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:42,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:42,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:42,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97360426]
[2024-11-19 01:11:42,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97360426] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:42,519 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:42,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-19 01:11:42,519 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951105401]
[2024-11-19 01:11:42,519 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:42,520 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 01:11:42,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:42,521 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 01:11:42,521 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-19 01:11:42,521 INFO  L87              Difference]: Start difference. First operand 114 states and 159 transitions. Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:42,726 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:42,727 INFO  L93              Difference]: Finished difference Result 225 states and 315 transitions.
[2024-11-19 01:11:42,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 01:11:42,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106
[2024-11-19 01:11:42,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:42,729 INFO  L225             Difference]: With dead ends: 225
[2024-11-19 01:11:42,729 INFO  L226             Difference]: Without dead ends: 114
[2024-11-19 01:11:42,730 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
[2024-11-19 01:11:42,734 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 138 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:42,735 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-19 01:11:42,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2024-11-19 01:11:42,751 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114.
[2024-11-19 01:11:42,752 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:42,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions.
[2024-11-19 01:11:42,753 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 106
[2024-11-19 01:11:42,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:42,755 INFO  L471      AbstractCegarLoop]: Abstraction has 114 states and 158 transitions.
[2024-11-19 01:11:42,756 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:42,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions.
[2024-11-19 01:11:42,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-19 01:11:42,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:42,760 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:42,761 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 01:11:42,761 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:42,761 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:42,762 INFO  L85        PathProgramCache]: Analyzing trace with hash 895739275, now seen corresponding path program 1 times
[2024-11-19 01:11:42,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:42,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532779341]
[2024-11-19 01:11:42,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:42,763 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:42,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:43,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:43,019 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:43,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532779341]
[2024-11-19 01:11:43,020 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532779341] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:43,020 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:43,020 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-19 01:11:43,020 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782394463]
[2024-11-19 01:11:43,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:43,021 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-19 01:11:43,021 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:43,021 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-19 01:11:43,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-19 01:11:43,022 INFO  L87              Difference]: Start difference. First operand 114 states and 158 transitions. Second operand  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:43,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:43,339 INFO  L93              Difference]: Finished difference Result 227 states and 316 transitions.
[2024-11-19 01:11:43,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-19 01:11:43,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107
[2024-11-19 01:11:43,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:43,341 INFO  L225             Difference]: With dead ends: 227
[2024-11-19 01:11:43,341 INFO  L226             Difference]: Without dead ends: 116
[2024-11-19 01:11:43,342 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-19 01:11:43,343 INFO  L432           NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:43,344 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 437 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-19 01:11:43,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2024-11-19 01:11:43,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116.
[2024-11-19 01:11:43,357 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-19 01:11:43,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions.
[2024-11-19 01:11:43,361 INFO  L78                 Accepts]: Start accepts. Automaton has 116 states and 160 transitions. Word has length 107
[2024-11-19 01:11:43,362 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:43,362 INFO  L471      AbstractCegarLoop]: Abstraction has 116 states and 160 transitions.
[2024-11-19 01:11:43,362 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:43,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions.
[2024-11-19 01:11:43,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-19 01:11:43,364 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:43,364 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:43,364 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 01:11:43,365 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:43,366 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:43,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 85606593, now seen corresponding path program 1 times
[2024-11-19 01:11:43,366 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:43,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108680276]
[2024-11-19 01:11:43,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:43,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:43,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:45,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:45,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:45,057 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108680276]
[2024-11-19 01:11:45,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108680276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:45,057 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:45,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-19 01:11:45,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360705403]
[2024-11-19 01:11:45,058 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:45,058 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-19 01:11:45,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:45,059 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-19 01:11:45,059 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-19 01:11:45,059 INFO  L87              Difference]: Start difference. First operand 116 states and 160 transitions. Second operand  has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-19 01:11:45,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:45,768 INFO  L93              Difference]: Finished difference Result 310 states and 426 transitions.
[2024-11-19 01:11:45,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-19 01:11:45,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108
[2024-11-19 01:11:45,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:45,771 INFO  L225             Difference]: With dead ends: 310
[2024-11-19 01:11:45,772 INFO  L226             Difference]: Without dead ends: 197
[2024-11-19 01:11:45,773 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-19 01:11:45,774 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 83 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:45,775 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 707 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-19 01:11:45,776 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2024-11-19 01:11:45,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194.
[2024-11-19 01:11:45,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 194 states, 176 states have (on average 1.3409090909090908) internal successors, (236), 177 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-19 01:11:45,789 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions.
[2024-11-19 01:11:45,790 INFO  L78                 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 108
[2024-11-19 01:11:45,790 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:45,790 INFO  L471      AbstractCegarLoop]: Abstraction has 194 states and 266 transitions.
[2024-11-19 01:11:45,790 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-19 01:11:45,790 INFO  L276                IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions.
[2024-11-19 01:11:45,791 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-19 01:11:45,792 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:45,792 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:45,792 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-19 01:11:45,792 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:45,793 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:45,793 INFO  L85        PathProgramCache]: Analyzing trace with hash -935461761, now seen corresponding path program 1 times
[2024-11-19 01:11:45,793 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:45,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778139820]
[2024-11-19 01:11:45,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:45,794 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:45,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-19 01:11:45,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130884619]
[2024-11-19 01:11:45,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:45,951 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 01:11:45,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 01:11:45,954 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)
[2024-11-19 01:11:45,956 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-19 01:11:46,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:46,276 INFO  L255         TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-19 01:11:46,285 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 01:11:46,455 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-19 01:11:46,455 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31
[2024-11-19 01:11:46,550 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-19 01:11:46,551 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 12
[2024-11-19 01:11:46,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:46,637 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 01:11:46,638 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:46,638 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778139820]
[2024-11-19 01:11:46,638 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-19 01:11:46,639 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130884619]
[2024-11-19 01:11:46,639 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130884619] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:46,639 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:46,639 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 01:11:46,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164911933]
[2024-11-19 01:11:46,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:46,640 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 01:11:46,640 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:46,641 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 01:11:46,641 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-19 01:11:46,641 INFO  L87              Difference]: Start difference. First operand 194 states and 266 transitions. Second operand  has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:47,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:47,887 INFO  L93              Difference]: Finished difference Result 566 states and 778 transitions.
[2024-11-19 01:11:47,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-19 01:11:47,888 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108
[2024-11-19 01:11:47,888 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:47,892 INFO  L225             Difference]: With dead ends: 566
[2024-11-19 01:11:47,892 INFO  L226             Difference]: Without dead ends: 375
[2024-11-19 01:11:47,893 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-11-19 01:11:47,894 INFO  L432           NwaCegarLoop]: 147 mSDtfsCounter, 297 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:47,894 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 510 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-19 01:11:47,895 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 375 states.
[2024-11-19 01:11:47,911 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 201.
[2024-11-19 01:11:47,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 183 states have (on average 1.3333333333333333) internal successors, (244), 184 states have internal predecessors, (244), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-19 01:11:47,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 274 transitions.
[2024-11-19 01:11:47,915 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 274 transitions. Word has length 108
[2024-11-19 01:11:47,916 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:47,916 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 274 transitions.
[2024-11-19 01:11:47,917 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:47,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 274 transitions.
[2024-11-19 01:11:47,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-19 01:11:47,918 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:47,919 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:47,939 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-19 01:11:48,119 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 01:11:48,121 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:48,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:48,121 INFO  L85        PathProgramCache]: Analyzing trace with hash -1718407104, now seen corresponding path program 1 times
[2024-11-19 01:11:48,123 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:48,123 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620021668]
[2024-11-19 01:11:48,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:48,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:48,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:48,640 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:48,641 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:48,641 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620021668]
[2024-11-19 01:11:48,641 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620021668] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:48,641 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:48,641 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-19 01:11:48,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750706661]
[2024-11-19 01:11:48,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:48,642 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-19 01:11:48,642 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:48,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-19 01:11:48,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-19 01:11:48,643 INFO  L87              Difference]: Start difference. First operand 201 states and 274 transitions. Second operand  has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11)
[2024-11-19 01:11:49,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:49,015 INFO  L93              Difference]: Finished difference Result 399 states and 545 transitions.
[2024-11-19 01:11:49,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-19 01:11:49,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108
[2024-11-19 01:11:49,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:49,018 INFO  L225             Difference]: With dead ends: 399
[2024-11-19 01:11:49,018 INFO  L226             Difference]: Without dead ends: 201
[2024-11-19 01:11:49,018 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-19 01:11:49,019 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 225 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:49,019 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 203 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-19 01:11:49,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2024-11-19 01:11:49,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201.
[2024-11-19 01:11:49,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 184 states have internal predecessors, (242), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-19 01:11:49,033 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions.
[2024-11-19 01:11:49,034 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 108
[2024-11-19 01:11:49,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:49,034 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 272 transitions.
[2024-11-19 01:11:49,034 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11)
[2024-11-19 01:11:49,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions.
[2024-11-19 01:11:49,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-19 01:11:49,036 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:49,036 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:49,036 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-19 01:11:49,036 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:49,037 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:49,037 INFO  L85        PathProgramCache]: Analyzing trace with hash 450741633, now seen corresponding path program 1 times
[2024-11-19 01:11:49,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:49,037 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657484770]
[2024-11-19 01:11:49,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:49,043 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:49,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-19 01:11:49,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327318229]
[2024-11-19 01:11:49,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:49,157 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 01:11:49,158 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 01:11:49,159 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)
[2024-11-19 01:11:49,161 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-19 01:11:49,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 01:11:49,412 INFO  L255         TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-19 01:11:49,418 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 01:11:49,434 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70
[2024-11-19 01:11:49,691 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 100
[2024-11-19 01:11:49,984 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-19 01:11:49,985 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33
[2024-11-19 01:11:50,274 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-19 01:11:50,274 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 34
[2024-11-19 01:11:50,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-19 01:11:50,374 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 01:11:50,374 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 01:11:50,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657484770]
[2024-11-19 01:11:50,375 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-19 01:11:50,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327318229]
[2024-11-19 01:11:50,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [327318229] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 01:11:50,375 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 01:11:50,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-19 01:11:50,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981083071]
[2024-11-19 01:11:50,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 01:11:50,376 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-19 01:11:50,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 01:11:50,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-19 01:11:50,377 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-19 01:11:50,377 INFO  L87              Difference]: Start difference. First operand 201 states and 272 transitions. Second operand  has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:54,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 01:11:54,261 INFO  L93              Difference]: Finished difference Result 773 states and 1049 transitions.
[2024-11-19 01:11:54,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-19 01:11:54,263 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108
[2024-11-19 01:11:54,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 01:11:54,266 INFO  L225             Difference]: With dead ends: 773
[2024-11-19 01:11:54,266 INFO  L226             Difference]: Without dead ends: 575
[2024-11-19 01:11:54,267 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2024-11-19 01:11:54,269 INFO  L432           NwaCegarLoop]: 91 mSDtfsCounter, 627 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-11-19 01:11:54,269 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 591 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-11-19 01:11:54,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 575 states.
[2024-11-19 01:11:54,295 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 258.
[2024-11-19 01:11:54,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 258 states, 228 states have (on average 1.3245614035087718) internal successors, (302), 229 states have internal predecessors, (302), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26)
[2024-11-19 01:11:54,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 354 transitions.
[2024-11-19 01:11:54,298 INFO  L78                 Accepts]: Start accepts. Automaton has 258 states and 354 transitions. Word has length 108
[2024-11-19 01:11:54,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 01:11:54,299 INFO  L471      AbstractCegarLoop]: Abstraction has 258 states and 354 transitions.
[2024-11-19 01:11:54,300 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 5.6) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-19 01:11:54,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states and 354 transitions.
[2024-11-19 01:11:54,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-19 01:11:54,301 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 01:11:54,301 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 01:11:54,322 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-19 01:11:54,502 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,SelfDestructingSolverStorable8
[2024-11-19 01:11:54,502 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 01:11:54,503 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 01:11:54,503 INFO  L85        PathProgramCache]: Analyzing trace with hash -1137606269, now seen corresponding path program 1 times
[2024-11-19 01:11:54,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 01:11:54,503 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318955078]
[2024-11-19 01:11:54,503 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 01:11:54,503 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 01:11:54,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat