./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 551b0097
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 64bit --witnessprinter.graph.data.programhash a9ac9496968571a093cb45585a364c5798e5fe6c4cc0640c1787c68e0eaa7ce5
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-551b009-m
[2025-01-09 06:52:37,624 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-01-09 06:52:37,696 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-01-09 06:52:37,703 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-01-09 06:52:37,704 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-01-09 06:52:37,729 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-01-09 06:52:37,730 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-01-09 06:52:37,730 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-01-09 06:52:37,730 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-01-09 06:52:37,731 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-01-09 06:52:37,731 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-01-09 06:52:37,731 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-01-09 06:52:37,731 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-01-09 06:52:37,731 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-01-09 06:52:37,731 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-01-09 06:52:37,732 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-01-09 06:52:37,732 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-01-09 06:52:37,733 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 06:52:37,733 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:37,733 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:37,734 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-01-09 06:52:37,734 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-01-09 06:52:37,735 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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-jdk21/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9ac9496968571a093cb45585a364c5798e5fe6c4cc0640c1787c68e0eaa7ce5
[2025-01-09 06:52:38,060 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-01-09 06:52:38,072 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-01-09 06:52:38,076 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-01-09 06:52:38,077 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-01-09 06:52:38,077 INFO  L274        PluginConnector]: CDTParser initialized
[2025-01-09 06:52:38,080 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c
[2025-01-09 06:52:39,411 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/37ae855db/2e29ca4da04e4939834ae6923e9bed02/FLAGec47c02c2
[2025-01-09 06:52:39,956 INFO  L384              CDTParser]: Found 1 translation units.
[2025-01-09 06:52:39,956 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c
[2025-01-09 06:52:39,994 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/37ae855db/2e29ca4da04e4939834ae6923e9bed02/FLAGec47c02c2
[2025-01-09 06:52:40,481 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/37ae855db/2e29ca4da04e4939834ae6923e9bed02
[2025-01-09 06:52:40,484 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-01-09 06:52:40,485 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-01-09 06:52:40,487 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-01-09 06:52:40,487 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-01-09 06:52:40,490 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-01-09 06:52:40,491 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:52:40" (1/1) ...
[2025-01-09 06:52:40,491 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a292954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:40, skipping insertion in model container
[2025-01-09 06:52:40,492 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:52:40" (1/1) ...
[2025-01-09 06:52:40,584 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-01-09 06:52:40,823 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c[1245,1258]
[2025-01-09 06:52:41,479 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 06:52:41,487 INFO  L200         MainTranslator]: Completed pre-run
[2025-01-09 06:52:41,496 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal38.c[1245,1258]
[2025-01-09 06:52:41,931 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 06:52:41,956 INFO  L204         MainTranslator]: Completed translation
[2025-01-09 06:52:41,960 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41 WrapperNode
[2025-01-09 06:52:41,964 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-01-09 06:52:41,965 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-01-09 06:52:41,965 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-01-09 06:52:41,965 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-01-09 06:52:41,975 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:42,139 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:43,418 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13134
[2025-01-09 06:52:43,419 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-01-09 06:52:43,419 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-01-09 06:52:43,420 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-01-09 06:52:43,420 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-01-09 06:52:43,438 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:43,441 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:43,793 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,022 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2025-01-09 06:52:44,022 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,022 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,417 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,465 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,524 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,592 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,644 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,845 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-01-09 06:52:44,846 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-01-09 06:52:44,846 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-01-09 06:52:44,846 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-01-09 06:52:44,847 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (1/1) ...
[2025-01-09 06:52:44,851 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:44,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 06:52:44,873 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-01-09 06:52:44,875 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-01-09 06:52:44,897 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-01-09 06:52:44,897 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-01-09 06:52:44,897 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-01-09 06:52:44,897 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-01-09 06:52:44,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-01-09 06:52:45,685 INFO  L234             CfgBuilder]: Building ICFG
[2025-01-09 06:52:45,687 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-01-09 06:53:03,642 INFO  L?                        ?]: Removed 7120 outVars from TransFormulas that were not future-live.
[2025-01-09 06:53:03,642 INFO  L283             CfgBuilder]: Performing block encoding
[2025-01-09 06:53:03,722 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-01-09 06:53:03,723 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-01-09 06:53:03,723 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:53:03 BoogieIcfgContainer
[2025-01-09 06:53:03,723 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-01-09 06:53:03,727 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-01-09 06:53:03,727 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-01-09 06:53:03,731 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-01-09 06:53:03,732 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:52:40" (1/3) ...
[2025-01-09 06:53:03,733 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b4ac26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:53:03, skipping insertion in model container
[2025-01-09 06:53:03,733 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:41" (2/3) ...
[2025-01-09 06:53:03,734 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b4ac26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:53:03, skipping insertion in model container
[2025-01-09 06:53:03,734 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:53:03" (3/3) ...
[2025-01-09 06:53:03,736 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal38.c
[2025-01-09 06:53:03,748 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-01-09 06:53:03,750 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal38.c that has 1 procedures, 4308 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-01-09 06:53:03,881 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-01-09 06:53:03,893 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;@700ca380, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-01-09 06:53:03,894 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-01-09 06:53:03,914 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:04,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1966
[2025-01-09 06:53:04,036 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:04,038 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:04,038 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:04,044 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:04,046 INFO  L85        PathProgramCache]: Analyzing trace with hash 1027277039, now seen corresponding path program 1 times
[2025-01-09 06:53:04,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:04,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805096967]
[2025-01-09 06:53:04,055 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:04,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:04,572 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1965 statements into 1 equivalence classes.
[2025-01-09 06:53:06,144 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1965 of 1965 statements.
[2025-01-09 06:53:06,145 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:06,145 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:15,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:15,455 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:15,455 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805096967]
[2025-01-09 06:53:15,461 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805096967] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:15,461 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:15,461 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:15,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982577846]
[2025-01-09 06:53:15,463 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:15,475 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:15,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:15,512 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:15,513 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:15,525 INFO  L87              Difference]: Start difference. First operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:16,451 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:16,452 INFO  L93              Difference]: Finished difference Result 8514 states and 12769 transitions.
[2025-01-09 06:53:16,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:16,455 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1965
[2025-01-09 06:53:16,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:16,496 INFO  L225             Difference]: With dead ends: 8514
[2025-01-09 06:53:16,496 INFO  L226             Difference]: Without dead ends: 4304
[2025-01-09 06:53:16,506 INFO  L434           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
[2025-01-09 06:53:16,509 INFO  L435           NwaCegarLoop]: 6175 mSDtfsCounter, 4675 mSDsluCounter, 6174 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 12349 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:16,510 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4675 Valid, 12349 Invalid, 555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2025-01-09 06:53:16,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2025-01-09 06:53:16,647 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2025-01-09 06:53:16,657 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.499419009993028) internal successors, (6452), 4303 states have internal predecessors, (6452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:16,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6452 transitions.
[2025-01-09 06:53:16,679 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6452 transitions. Word has length 1965
[2025-01-09 06:53:16,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:16,684 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6452 transitions.
[2025-01-09 06:53:16,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:16,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6452 transitions.
[2025-01-09 06:53:16,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1967
[2025-01-09 06:53:16,765 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:16,766 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:16,766 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-01-09 06:53:16,767 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:16,768 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:16,770 INFO  L85        PathProgramCache]: Analyzing trace with hash -417985080, now seen corresponding path program 1 times
[2025-01-09 06:53:16,770 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:16,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687194864]
[2025-01-09 06:53:16,771 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:16,771 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:17,124 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1966 statements into 1 equivalence classes.
[2025-01-09 06:53:17,885 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1966 of 1966 statements.
[2025-01-09 06:53:17,885 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:17,885 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:22,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:22,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:22,221 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687194864]
[2025-01-09 06:53:22,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687194864] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:22,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:22,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 06:53:22,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130879938]
[2025-01-09 06:53:22,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:22,225 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 06:53:22,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:22,228 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 06:53:22,228 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 06:53:22,230 INFO  L87              Difference]: Start difference. First operand 4304 states and 6452 transitions. Second operand  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:22,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:22,916 INFO  L93              Difference]: Finished difference Result 8510 states and 12758 transitions.
[2025-01-09 06:53:22,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:22,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1966
[2025-01-09 06:53:22,921 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:22,937 INFO  L225             Difference]: With dead ends: 8510
[2025-01-09 06:53:22,938 INFO  L226             Difference]: Without dead ends: 4304
[2025-01-09 06:53:22,946 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2025-01-09 06:53:22,947 INFO  L435           NwaCegarLoop]: 6175 mSDtfsCounter, 11107 mSDsluCounter, 6174 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11107 SdHoareTripleChecker+Valid, 12349 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:22,948 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11107 Valid, 12349 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-01-09 06:53:22,957 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2025-01-09 06:53:23,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2025-01-09 06:53:23,039 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.4991866139902394) internal successors, (6451), 4303 states have internal predecessors, (6451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:23,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6451 transitions.
[2025-01-09 06:53:23,054 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6451 transitions. Word has length 1966
[2025-01-09 06:53:23,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:23,058 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6451 transitions.
[2025-01-09 06:53:23,059 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:23,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6451 transitions.
[2025-01-09 06:53:23,089 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1968
[2025-01-09 06:53:23,089 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:23,090 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:23,091 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-01-09 06:53:23,091 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:23,093 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:23,094 INFO  L85        PathProgramCache]: Analyzing trace with hash -1925929384, now seen corresponding path program 1 times
[2025-01-09 06:53:23,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:23,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955612900]
[2025-01-09 06:53:23,095 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:23,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:23,461 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1967 statements into 1 equivalence classes.
[2025-01-09 06:53:24,028 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1967 of 1967 statements.
[2025-01-09 06:53:24,029 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:24,029 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:28,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:28,379 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:28,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955612900]
[2025-01-09 06:53:28,379 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955612900] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:28,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:28,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:28,379 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269646903]
[2025-01-09 06:53:28,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:28,382 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:28,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:28,384 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:28,384 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:28,385 INFO  L87              Difference]: Start difference. First operand 4304 states and 6451 transitions. Second operand  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:28,494 INFO  L93              Difference]: Finished difference Result 4308 states and 6455 transitions.
[2025-01-09 06:53:28,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:28,496 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1967
[2025-01-09 06:53:28,500 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:28,517 INFO  L225             Difference]: With dead ends: 4308
[2025-01-09 06:53:28,517 INFO  L226             Difference]: Without dead ends: 4306
[2025-01-09 06:53:28,520 INFO  L434           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
[2025-01-09 06:53:28,520 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:28,522 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 06:53:28,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4306 states.
[2025-01-09 06:53:28,593 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4306.
[2025-01-09 06:53:28,605 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4306 states, 4305 states have (on average 1.4989547038327526) internal successors, (6453), 4305 states have internal predecessors, (6453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,622 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6453 transitions.
[2025-01-09 06:53:28,622 INFO  L78                 Accepts]: Start accepts. Automaton has 4306 states and 6453 transitions. Word has length 1967
[2025-01-09 06:53:28,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:28,626 INFO  L471      AbstractCegarLoop]: Abstraction has 4306 states and 6453 transitions.
[2025-01-09 06:53:28,627 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,627 INFO  L276                IsEmpty]: Start isEmpty. Operand 4306 states and 6453 transitions.
[2025-01-09 06:53:28,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1969
[2025-01-09 06:53:28,663 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:28,664 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:28,664 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-01-09 06:53:28,664 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:28,665 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:28,666 INFO  L85        PathProgramCache]: Analyzing trace with hash 427439143, now seen corresponding path program 1 times
[2025-01-09 06:53:28,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:28,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299419783]
[2025-01-09 06:53:28,666 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:28,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:29,068 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1968 statements into 1 equivalence classes.
[2025-01-09 06:53:29,979 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1968 of 1968 statements.
[2025-01-09 06:53:29,979 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:29,979 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:33,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:33,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:33,428 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299419783]
[2025-01-09 06:53:33,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299419783] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:33,428 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:33,428 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:33,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573735020]
[2025-01-09 06:53:33,429 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:33,431 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:33,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:33,433 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:33,433 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:33,434 INFO  L87              Difference]: Start difference. First operand 4306 states and 6453 transitions. Second operand  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:33,556 INFO  L93              Difference]: Finished difference Result 8516 states and 12763 transitions.
[2025-01-09 06:53:33,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:33,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1968
[2025-01-09 06:53:33,562 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:33,579 INFO  L225             Difference]: With dead ends: 8516
[2025-01-09 06:53:33,579 INFO  L226             Difference]: Without dead ends: 4308
[2025-01-09 06:53:33,587 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:33,590 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:33,591 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 06:53:33,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4308 states.
[2025-01-09 06:53:33,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 4308.
[2025-01-09 06:53:33,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4308 states, 4307 states have (on average 1.4987230090550268) internal successors, (6455), 4307 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 6455 transitions.
[2025-01-09 06:53:33,674 INFO  L78                 Accepts]: Start accepts. Automaton has 4308 states and 6455 transitions. Word has length 1968
[2025-01-09 06:53:33,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:33,678 INFO  L471      AbstractCegarLoop]: Abstraction has 4308 states and 6455 transitions.
[2025-01-09 06:53:33,680 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,680 INFO  L276                IsEmpty]: Start isEmpty. Operand 4308 states and 6455 transitions.
[2025-01-09 06:53:33,708 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1970
[2025-01-09 06:53:33,708 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:33,709 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-01-09 06:53:33,710 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-01-09 06:53:33,710 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:33,711 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:33,712 INFO  L85        PathProgramCache]: Analyzing trace with hash -732241647, now seen corresponding path program 1 times
[2025-01-09 06:53:33,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:33,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590071612]
[2025-01-09 06:53:33,712 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:33,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:34,042 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1969 statements into 1 equivalence classes.
[2025-01-09 06:53:41,538 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1969 of 1969 statements.
[2025-01-09 06:53:41,538 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:41,538 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat