./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.04.cil.c --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/systemc/transmitter.04.cil.c -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 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 14:35:58,613 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 14:35:58,667 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 14:35:58,672 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 14:35:58,672 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 14:35:58,703 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 14:35:58,705 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 14:35:58,706 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 14:35:58,706 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 14:35:58,708 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 14:35:58,709 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 14:35:58,709 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 14:35:58,709 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 14:35:58,710 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 14:35:58,712 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 14:35:58,712 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 14:35:58,712 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 14:35:58,712 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 14:35:58,713 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 14:35:58,713 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 14:35:58,713 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 14:35:58,716 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 14:35:58,716 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 14:35:58,717 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 14:35:58,717 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 14:35:58,717 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 14:35:58,717 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 14:35:58,718 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 14:35:58,718 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 14:35:58,718 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 14:35:58,719 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 14:35:58,719 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 14:35:58,720 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:35:58,720 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 14:35:58,720 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 14:35:58,721 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 14:35:58,721 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 14:35:58,721 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 14:35:58,721 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 14:35:58,721 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 14:35:58,722 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 14:35:58,722 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 14:35:58,722 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 -> 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa
[2024-11-18 14:35:58,981 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 14:35:59,004 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 14:35:59,007 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 14:35:59,010 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 14:35:59,011 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 14:35:59,012 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.04.cil.c
[2024-11-18 14:36:00,501 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 14:36:00,750 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 14:36:00,751 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.04.cil.c
[2024-11-18 14:36:00,765 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e7fbb62/c7982b1fa22648a3b213a04f6e673c01/FLAGcc3c11b55
[2024-11-18 14:36:01,090 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e7fbb62/c7982b1fa22648a3b213a04f6e673c01
[2024-11-18 14:36:01,092 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 14:36:01,093 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 14:36:01,095 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 14:36:01,095 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 14:36:01,100 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 14:36:01,101 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,102 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdbaaa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01, skipping insertion in model container
[2024-11-18 14:36:01,102 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,148 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 14:36:01,424 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/systemc/transmitter.04.cil.c[706,719]
[2024-11-18 14:36:01,523 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:36:01,534 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 14:36:01,547 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/systemc/transmitter.04.cil.c[706,719]
[2024-11-18 14:36:01,585 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:36:01,611 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 14:36:01,611 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01 WrapperNode
[2024-11-18 14:36:01,612 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 14:36:01,613 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 14:36:01,613 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 14:36:01,613 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 14:36:01,619 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,635 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,673 INFO  L138                Inliner]: procedures = 36, calls = 42, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 387
[2024-11-18 14:36:01,673 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 14:36:01,674 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 14:36:01,674 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 14:36:01,674 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 14:36:01,686 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,686 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,689 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,722 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-18 14:36:01,726 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,727 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,735 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,746 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,748 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,750 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,754 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 14:36:01,755 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 14:36:01,755 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 14:36:01,755 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 14:36:01,756 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (1/1) ...
[2024-11-18 14:36:01,761 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:36:01,775 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 14:36:01,794 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-18 14:36:01,798 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-18 14:36:01,846 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 14:36:01,846 INFO  L130     BoogieDeclarations]: Found specification of procedure fire_delta_events
[2024-11-18 14:36:01,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure fire_delta_events
[2024-11-18 14:36:01,847 INFO  L130     BoogieDeclarations]: Found specification of procedure activate_threads
[2024-11-18 14:36:01,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure activate_threads
[2024-11-18 14:36:01,847 INFO  L130     BoogieDeclarations]: Found specification of procedure immediate_notify
[2024-11-18 14:36:01,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure immediate_notify
[2024-11-18 14:36:01,847 INFO  L130     BoogieDeclarations]: Found specification of procedure exists_runnable_thread
[2024-11-18 14:36:01,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure exists_runnable_thread
[2024-11-18 14:36:01,847 INFO  L130     BoogieDeclarations]: Found specification of procedure reset_delta_events
[2024-11-18 14:36:01,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure reset_delta_events
[2024-11-18 14:36:01,847 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 14:36:01,848 INFO  L130     BoogieDeclarations]: Found specification of procedure update_channels
[2024-11-18 14:36:01,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure update_channels
[2024-11-18 14:36:01,848 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 14:36:01,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 14:36:01,935 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 14:36:01,937 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 14:36:02,448 INFO  L?                        ?]: Removed 49 outVars from TransFormulas that were not future-live.
[2024-11-18 14:36:02,448 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 14:36:02,473 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 14:36:02,473 INFO  L316             CfgBuilder]: Removed 8 assume(true) statements.
[2024-11-18 14:36:02,474 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:02 BoogieIcfgContainer
[2024-11-18 14:36:02,474 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 14:36:02,476 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 14:36:02,476 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 14:36:02,480 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 14:36:02,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:36:01" (1/3) ...
[2024-11-18 14:36:02,481 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6152828d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:36:02, skipping insertion in model container
[2024-11-18 14:36:02,482 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:01" (2/3) ...
[2024-11-18 14:36:02,484 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6152828d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:36:02, skipping insertion in model container
[2024-11-18 14:36:02,484 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:02" (3/3) ...
[2024-11-18 14:36:02,485 INFO  L112   eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c
[2024-11-18 14:36:02,501 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 14:36:02,502 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 14:36:02,569 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 14:36:02,575 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;@4590501f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 14:36:02,575 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 14:36:02,580 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-18 14:36:02,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:02,593 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:02,594 INFO  L215           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]
[2024-11-18 14:36:02,594 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:02,600 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:02,600 INFO  L85        PathProgramCache]: Analyzing trace with hash -826588388, now seen corresponding path program 1 times
[2024-11-18 14:36:02,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:02,610 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54985672]
[2024-11-18 14:36:02,611 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:02,611 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:02,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:03,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:03,234 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:03,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54985672]
[2024-11-18 14:36:03,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54985672] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:03,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:03,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:36:03,237 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308716988]
[2024-11-18 14:36:03,237 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:03,241 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:36:03,241 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:03,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:36:03,260 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:03,262 INFO  L87              Difference]: Start difference. First operand  has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:03,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:03,763 INFO  L93              Difference]: Finished difference Result 537 states and 852 transitions.
[2024-11-18 14:36:03,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 14:36:03,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:03,766 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:03,782 INFO  L225             Difference]: With dead ends: 537
[2024-11-18 14:36:03,782 INFO  L226             Difference]: Without dead ends: 358
[2024-11-18 14:36:03,789 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:03,792 INFO  L432           NwaCegarLoop]: 209 mSDtfsCounter, 460 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:03,793 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 728 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 14:36:03,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 358 states.
[2024-11-18 14:36:03,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 345.
[2024-11-18 14:36:03,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 345 states, 302 states have (on average 1.4933774834437086) internal successors, (451), 304 states have internal predecessors, (451), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30)
[2024-11-18 14:36:03,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 510 transitions.
[2024-11-18 14:36:03,856 INFO  L78                 Accepts]: Start accepts. Automaton has 345 states and 510 transitions. Word has length 91
[2024-11-18 14:36:03,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:03,856 INFO  L471      AbstractCegarLoop]: Abstraction has 345 states and 510 transitions.
[2024-11-18 14:36:03,856 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:03,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 510 transitions.
[2024-11-18 14:36:03,859 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:03,860 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:03,860 INFO  L215           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]
[2024-11-18 14:36:03,860 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-18 14:36:03,860 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:03,861 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:03,861 INFO  L85        PathProgramCache]: Analyzing trace with hash 180155515, now seen corresponding path program 1 times
[2024-11-18 14:36:03,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:03,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737861578]
[2024-11-18 14:36:03,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:03,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:03,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:04,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:04,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:04,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737861578]
[2024-11-18 14:36:04,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737861578] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:04,053 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:04,053 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:04,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852291598]
[2024-11-18 14:36:04,054 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:04,055 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:04,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:04,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:04,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:04,056 INFO  L87              Difference]: Start difference. First operand 345 states and 510 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:04,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:04,747 INFO  L93              Difference]: Finished difference Result 919 states and 1370 transitions.
[2024-11-18 14:36:04,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:04,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:04,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:04,753 INFO  L225             Difference]: With dead ends: 919
[2024-11-18 14:36:04,753 INFO  L226             Difference]: Without dead ends: 586
[2024-11-18 14:36:04,755 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:04,756 INFO  L432           NwaCegarLoop]: 337 mSDtfsCounter, 494 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:04,757 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1327 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 14:36:04,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 586 states.
[2024-11-18 14:36:04,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 502.
[2024-11-18 14:36:04,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 502 states, 440 states have (on average 1.4840909090909091) internal successors, (653), 443 states have internal predecessors, (653), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (45), 42 states have call predecessors, (45), 41 states have call successors, (45)
[2024-11-18 14:36:04,810 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 739 transitions.
[2024-11-18 14:36:04,811 INFO  L78                 Accepts]: Start accepts. Automaton has 502 states and 739 transitions. Word has length 91
[2024-11-18 14:36:04,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:04,812 INFO  L471      AbstractCegarLoop]: Abstraction has 502 states and 739 transitions.
[2024-11-18 14:36:04,812 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:04,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 502 states and 739 transitions.
[2024-11-18 14:36:04,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:04,815 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:04,815 INFO  L215           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]
[2024-11-18 14:36:04,815 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 14:36:04,816 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:04,816 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:04,817 INFO  L85        PathProgramCache]: Analyzing trace with hash -1897181383, now seen corresponding path program 1 times
[2024-11-18 14:36:04,817 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:04,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991736037]
[2024-11-18 14:36:04,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:04,818 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:04,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:04,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:04,961 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:04,961 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991736037]
[2024-11-18 14:36:04,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991736037] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:04,961 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:04,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:04,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27458759]
[2024-11-18 14:36:04,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:04,963 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:04,963 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:04,964 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:04,964 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:04,964 INFO  L87              Difference]: Start difference. First operand 502 states and 739 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:05,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:05,577 INFO  L93              Difference]: Finished difference Result 1409 states and 2094 transitions.
[2024-11-18 14:36:05,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:05,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:05,578 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:05,587 INFO  L225             Difference]: With dead ends: 1409
[2024-11-18 14:36:05,590 INFO  L226             Difference]: Without dead ends: 919
[2024-11-18 14:36:05,592 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:05,596 INFO  L432           NwaCegarLoop]: 333 mSDtfsCounter, 489 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:05,597 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1311 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 14:36:05,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 919 states.
[2024-11-18 14:36:05,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 831.
[2024-11-18 14:36:05,667 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 831 states, 729 states have (on average 1.4814814814814814) internal successors, (1080), 736 states have internal predecessors, (1080), 65 states have call successors, (65), 30 states have call predecessors, (65), 36 states have return successors, (81), 68 states have call predecessors, (81), 65 states have call successors, (81)
[2024-11-18 14:36:05,673 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1226 transitions.
[2024-11-18 14:36:05,674 INFO  L78                 Accepts]: Start accepts. Automaton has 831 states and 1226 transitions. Word has length 91
[2024-11-18 14:36:05,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:05,677 INFO  L471      AbstractCegarLoop]: Abstraction has 831 states and 1226 transitions.
[2024-11-18 14:36:05,677 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:05,677 INFO  L276                IsEmpty]: Start isEmpty. Operand 831 states and 1226 transitions.
[2024-11-18 14:36:05,679 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:05,680 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:05,681 INFO  L215           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]
[2024-11-18 14:36:05,681 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 14:36:05,681 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:05,682 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:05,682 INFO  L85        PathProgramCache]: Analyzing trace with hash -163076933, now seen corresponding path program 1 times
[2024-11-18 14:36:05,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:05,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978375899]
[2024-11-18 14:36:05,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:05,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:05,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:05,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:05,868 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:05,868 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978375899]
[2024-11-18 14:36:05,869 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978375899] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:05,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:05,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:05,869 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097051875]
[2024-11-18 14:36:05,869 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:05,870 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:05,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:05,871 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:05,871 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:05,871 INFO  L87              Difference]: Start difference. First operand 831 states and 1226 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:06,462 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:06,462 INFO  L93              Difference]: Finished difference Result 2444 states and 3655 transitions.
[2024-11-18 14:36:06,462 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:06,463 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:06,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:06,472 INFO  L225             Difference]: With dead ends: 2444
[2024-11-18 14:36:06,473 INFO  L226             Difference]: Without dead ends: 1625
[2024-11-18 14:36:06,476 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:06,477 INFO  L432           NwaCegarLoop]: 212 mSDtfsCounter, 502 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:06,478 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 904 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 14:36:06,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1625 states.
[2024-11-18 14:36:06,571 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1528.
[2024-11-18 14:36:06,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1528 states, 1340 states have (on average 1.4865671641791045) internal successors, (1992), 1361 states have internal predecessors, (1992), 113 states have call successors, (113), 54 states have call predecessors, (113), 74 states have return successors, (177), 120 states have call predecessors, (177), 113 states have call successors, (177)
[2024-11-18 14:36:06,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 2282 transitions.
[2024-11-18 14:36:06,591 INFO  L78                 Accepts]: Start accepts. Automaton has 1528 states and 2282 transitions. Word has length 91
[2024-11-18 14:36:06,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:06,592 INFO  L471      AbstractCegarLoop]: Abstraction has 1528 states and 2282 transitions.
[2024-11-18 14:36:06,592 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:06,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 1528 states and 2282 transitions.
[2024-11-18 14:36:06,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:06,596 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:06,596 INFO  L215           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]
[2024-11-18 14:36:06,596 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 14:36:06,597 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:06,597 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:06,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 724145913, now seen corresponding path program 1 times
[2024-11-18 14:36:06,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:06,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216538569]
[2024-11-18 14:36:06,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:06,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:06,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:06,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:06,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:06,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216538569]
[2024-11-18 14:36:06,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216538569] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:06,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:06,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:06,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519747207]
[2024-11-18 14:36:06,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:06,742 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:06,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:06,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:06,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:06,746 INFO  L87              Difference]: Start difference. First operand 1528 states and 2282 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:07,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:07,475 INFO  L93              Difference]: Finished difference Result 4651 states and 7093 transitions.
[2024-11-18 14:36:07,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:07,475 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:07,476 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:07,495 INFO  L225             Difference]: With dead ends: 4651
[2024-11-18 14:36:07,495 INFO  L226             Difference]: Without dead ends: 3135
[2024-11-18 14:36:07,501 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:07,502 INFO  L432           NwaCegarLoop]: 327 mSDtfsCounter, 479 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:07,503 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1287 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 14:36:07,507 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3135 states.
[2024-11-18 14:36:07,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3021.
[2024-11-18 14:36:07,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3021 states, 2643 states have (on average 1.4967839576239121) internal successors, (3956), 2710 states have internal predecessors, (3956), 209 states have call successors, (209), 102 states have call predecessors, (209), 168 states have return successors, (465), 224 states have call predecessors, (465), 209 states have call successors, (465)
[2024-11-18 14:36:07,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3021 states to 3021 states and 4630 transitions.
[2024-11-18 14:36:07,768 INFO  L78                 Accepts]: Start accepts. Automaton has 3021 states and 4630 transitions. Word has length 91
[2024-11-18 14:36:07,768 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:07,769 INFO  L471      AbstractCegarLoop]: Abstraction has 3021 states and 4630 transitions.
[2024-11-18 14:36:07,769 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:07,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 3021 states and 4630 transitions.
[2024-11-18 14:36:07,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:07,775 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:07,775 INFO  L215           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]
[2024-11-18 14:36:07,775 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 14:36:07,776 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:07,776 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:07,776 INFO  L85        PathProgramCache]: Analyzing trace with hash -1186896645, now seen corresponding path program 1 times
[2024-11-18 14:36:07,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:07,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353000497]
[2024-11-18 14:36:07,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:07,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:07,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:07,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:07,900 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:07,900 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353000497]
[2024-11-18 14:36:07,901 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353000497] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:07,901 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:07,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:07,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934220180]
[2024-11-18 14:36:07,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:07,903 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:07,905 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:07,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:07,906 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:07,906 INFO  L87              Difference]: Start difference. First operand 3021 states and 4630 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:08,794 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:08,795 INFO  L93              Difference]: Finished difference Result 9818 states and 15504 transitions.
[2024-11-18 14:36:08,795 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:08,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:08,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:08,841 INFO  L225             Difference]: With dead ends: 9818
[2024-11-18 14:36:08,841 INFO  L226             Difference]: Without dead ends: 6809
[2024-11-18 14:36:08,877 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:08,878 INFO  L432           NwaCegarLoop]: 318 mSDtfsCounter, 507 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:08,878 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1258 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 14:36:08,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6809 states.
[2024-11-18 14:36:09,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6809 to 6186.
[2024-11-18 14:36:09,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6186 states, 5390 states have (on average 1.512430426716141) internal successors, (8152), 5603 states have internal predecessors, (8152), 385 states have call successors, (385), 198 states have call predecessors, (385), 410 states have return successors, (1409), 416 states have call predecessors, (1409), 385 states have call successors, (1409)
[2024-11-18 14:36:09,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 9946 transitions.
[2024-11-18 14:36:09,269 INFO  L78                 Accepts]: Start accepts. Automaton has 6186 states and 9946 transitions. Word has length 91
[2024-11-18 14:36:09,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:09,269 INFO  L471      AbstractCegarLoop]: Abstraction has 6186 states and 9946 transitions.
[2024-11-18 14:36:09,270 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:09,270 INFO  L276                IsEmpty]: Start isEmpty. Operand 6186 states and 9946 transitions.
[2024-11-18 14:36:09,277 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:09,278 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:09,278 INFO  L215           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]
[2024-11-18 14:36:09,278 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-18 14:36:09,279 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:09,279 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:09,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -1109995847, now seen corresponding path program 1 times
[2024-11-18 14:36:09,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:09,280 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199653358]
[2024-11-18 14:36:09,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:09,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:09,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:09,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:09,374 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:09,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199653358]
[2024-11-18 14:36:09,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199653358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:09,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:09,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:09,374 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977398688]
[2024-11-18 14:36:09,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:09,375 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:09,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:09,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:09,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:09,377 INFO  L87              Difference]: Start difference. First operand 6186 states and 9946 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:10,535 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:10,536 INFO  L93              Difference]: Finished difference Result 20117 states and 33982 transitions.
[2024-11-18 14:36:10,536 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:10,537 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:10,537 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:10,680 INFO  L225             Difference]: With dead ends: 20117
[2024-11-18 14:36:10,682 INFO  L226             Difference]: Without dead ends: 13943
[2024-11-18 14:36:10,705 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:10,707 INFO  L432           NwaCegarLoop]: 315 mSDtfsCounter, 543 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:10,708 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1246 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-18 14:36:10,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13943 states.
[2024-11-18 14:36:11,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13943 to 13051.
[2024-11-18 14:36:11,776 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13051 states, 11273 states have (on average 1.522221236582986) internal successors, (17160), 11940 states have internal predecessors, (17160), 721 states have call successors, (721), 390 states have call predecessors, (721), 1056 states have return successors, (4817), 784 states have call predecessors, (4817), 721 states have call successors, (4817)
[2024-11-18 14:36:11,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13051 states to 13051 states and 22698 transitions.
[2024-11-18 14:36:11,887 INFO  L78                 Accepts]: Start accepts. Automaton has 13051 states and 22698 transitions. Word has length 91
[2024-11-18 14:36:11,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:11,890 INFO  L471      AbstractCegarLoop]: Abstraction has 13051 states and 22698 transitions.
[2024-11-18 14:36:11,890 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:11,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 13051 states and 22698 transitions.
[2024-11-18 14:36:11,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:11,909 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:11,909 INFO  L215           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]
[2024-11-18 14:36:11,910 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-18 14:36:11,910 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:11,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:11,911 INFO  L85        PathProgramCache]: Analyzing trace with hash -2077346501, now seen corresponding path program 1 times
[2024-11-18 14:36:11,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:11,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983758135]
[2024-11-18 14:36:11,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:11,912 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:11,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:12,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:12,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:12,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983758135]
[2024-11-18 14:36:12,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983758135] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:12,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:12,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-18 14:36:12,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034821982]
[2024-11-18 14:36:12,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:12,047 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 14:36:12,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:12,048 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 14:36:12,048 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 14:36:12,049 INFO  L87              Difference]: Start difference. First operand 13051 states and 22698 transitions. Second operand  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:13,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:13,932 INFO  L93              Difference]: Finished difference Result 40904 states and 77420 transitions.
[2024-11-18 14:36:13,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-18 14:36:13,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:13,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:14,144 INFO  L225             Difference]: With dead ends: 40904
[2024-11-18 14:36:14,145 INFO  L226             Difference]: Without dead ends: 27865
[2024-11-18 14:36:14,216 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-18 14:36:14,217 INFO  L432           NwaCegarLoop]: 308 mSDtfsCounter, 464 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:14,219 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1220 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-18 14:36:14,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27865 states.
[2024-11-18 14:36:16,981 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27865 to 27171.
[2024-11-18 14:36:17,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27171 states, 22975 states have (on average 1.5057236126224156) internal successors, (34594), 25036 states have internal predecessors, (34594), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745)
[2024-11-18 14:36:17,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27171 states to 27171 states and 53700 transitions.
[2024-11-18 14:36:17,249 INFO  L78                 Accepts]: Start accepts. Automaton has 27171 states and 53700 transitions. Word has length 91
[2024-11-18 14:36:17,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:17,250 INFO  L471      AbstractCegarLoop]: Abstraction has 27171 states and 53700 transitions.
[2024-11-18 14:36:17,251 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:17,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 27171 states and 53700 transitions.
[2024-11-18 14:36:17,283 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:17,283 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:17,284 INFO  L215           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]
[2024-11-18 14:36:17,284 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-18 14:36:17,284 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:17,285 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:17,285 INFO  L85        PathProgramCache]: Analyzing trace with hash 1724994621, now seen corresponding path program 1 times
[2024-11-18 14:36:17,285 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:17,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290211288]
[2024-11-18 14:36:17,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:17,286 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:17,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:17,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:17,364 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:17,364 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290211288]
[2024-11-18 14:36:17,364 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290211288] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:17,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:17,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:36:17,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103286196]
[2024-11-18 14:36:17,365 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:17,365 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:36:17,366 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:17,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:36:17,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:17,367 INFO  L87              Difference]: Start difference. First operand 27171 states and 53700 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:19,090 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:19,090 INFO  L93              Difference]: Finished difference Result 54332 states and 107967 transitions.
[2024-11-18 14:36:19,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 14:36:19,091 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:19,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:19,317 INFO  L225             Difference]: With dead ends: 54332
[2024-11-18 14:36:19,318 INFO  L226             Difference]: Without dead ends: 27174
[2024-11-18 14:36:19,439 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:19,442 INFO  L432           NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:19,442 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1034 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:36:19,471 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27174 states.
[2024-11-18 14:36:21,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27174 to 27174.
[2024-11-18 14:36:21,367 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27174 states, 22978 states have (on average 1.5000870397771782) internal successors, (34469), 25039 states have internal predecessors, (34469), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745)
[2024-11-18 14:36:21,552 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27174 states to 27174 states and 53575 transitions.
[2024-11-18 14:36:21,570 INFO  L78                 Accepts]: Start accepts. Automaton has 27174 states and 53575 transitions. Word has length 91
[2024-11-18 14:36:21,571 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:21,571 INFO  L471      AbstractCegarLoop]: Abstraction has 27174 states and 53575 transitions.
[2024-11-18 14:36:21,572 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:21,572 INFO  L276                IsEmpty]: Start isEmpty. Operand 27174 states and 53575 transitions.
[2024-11-18 14:36:21,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:21,602 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:21,602 INFO  L215           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]
[2024-11-18 14:36:21,602 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-18 14:36:21,602 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:21,603 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:21,603 INFO  L85        PathProgramCache]: Analyzing trace with hash 1926818555, now seen corresponding path program 1 times
[2024-11-18 14:36:21,603 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:21,603 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071197960]
[2024-11-18 14:36:21,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:21,604 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:21,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:21,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:21,704 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:21,704 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071197960]
[2024-11-18 14:36:21,704 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071197960] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:21,704 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:21,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:36:21,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541103884]
[2024-11-18 14:36:21,704 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:21,705 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:36:21,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:21,705 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:36:21,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:21,706 INFO  L87              Difference]: Start difference. First operand 27174 states and 53575 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:23,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:23,175 INFO  L93              Difference]: Finished difference Result 54722 states and 108229 transitions.
[2024-11-18 14:36:23,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 14:36:23,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:23,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:23,434 INFO  L225             Difference]: With dead ends: 54722
[2024-11-18 14:36:23,434 INFO  L226             Difference]: Without dead ends: 27561
[2024-11-18 14:36:23,501 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:23,502 INFO  L432           NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:23,503 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1034 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:36:23,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27561 states.
[2024-11-18 14:36:25,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27561 to 27561.
[2024-11-18 14:36:25,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27561 states, 23365 states have (on average 1.4918039803124332) internal successors, (34856), 25426 states have internal predecessors, (34856), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745)
[2024-11-18 14:36:25,311 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27561 states to 27561 states and 53962 transitions.
[2024-11-18 14:36:25,334 INFO  L78                 Accepts]: Start accepts. Automaton has 27561 states and 53962 transitions. Word has length 91
[2024-11-18 14:36:25,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:25,334 INFO  L471      AbstractCegarLoop]: Abstraction has 27561 states and 53962 transitions.
[2024-11-18 14:36:25,335 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:25,335 INFO  L276                IsEmpty]: Start isEmpty. Operand 27561 states and 53962 transitions.
[2024-11-18 14:36:25,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:25,358 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:25,359 INFO  L215           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]
[2024-11-18 14:36:25,359 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-18 14:36:25,359 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:25,360 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:25,360 INFO  L85        PathProgramCache]: Analyzing trace with hash -1492129735, now seen corresponding path program 1 times
[2024-11-18 14:36:25,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:25,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951494557]
[2024-11-18 14:36:25,361 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:25,361 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:25,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:25,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:25,421 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:25,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951494557]
[2024-11-18 14:36:25,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951494557] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:25,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:25,422 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:36:25,422 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484575315]
[2024-11-18 14:36:25,422 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:25,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:36:25,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:25,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:36:25,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:36:25,424 INFO  L87              Difference]: Start difference. First operand 27561 states and 53962 transitions. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:28,364 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:28,365 INFO  L93              Difference]: Finished difference Result 81963 states and 161203 transitions.
[2024-11-18 14:36:28,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:36:28,365 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:28,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:28,728 INFO  L225             Difference]: With dead ends: 81963
[2024-11-18 14:36:28,729 INFO  L226             Difference]: Without dead ends: 54415
[2024-11-18 14:36:28,813 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
[2024-11-18 14:36:28,814 INFO  L432           NwaCegarLoop]: 484 mSDtfsCounter, 461 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:28,814 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 907 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:36:28,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54415 states.
[2024-11-18 14:36:32,295 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54415 to 54154.
[2024-11-18 14:36:32,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54154 states, 45928 states have (on average 1.4890480752482147) internal successors, (68389), 50049 states have internal predecessors, (68389), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 5652 states have return successors, (35214), 2700 states have call predecessors, (35214), 2573 states have call successors, (35214)
[2024-11-18 14:36:32,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54154 states to 54154 states and 106176 transitions.
[2024-11-18 14:36:32,787 INFO  L78                 Accepts]: Start accepts. Automaton has 54154 states and 106176 transitions. Word has length 91
[2024-11-18 14:36:32,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:32,788 INFO  L471      AbstractCegarLoop]: Abstraction has 54154 states and 106176 transitions.
[2024-11-18 14:36:32,788 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:32,788 INFO  L276                IsEmpty]: Start isEmpty. Operand 54154 states and 106176 transitions.
[2024-11-18 14:36:32,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:32,818 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:32,818 INFO  L215           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]
[2024-11-18 14:36:32,819 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-18 14:36:32,819 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:32,819 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:32,820 INFO  L85        PathProgramCache]: Analyzing trace with hash 2101269336, now seen corresponding path program 1 times
[2024-11-18 14:36:32,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:32,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345638910]
[2024-11-18 14:36:32,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:32,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:32,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:32,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:32,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:32,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345638910]
[2024-11-18 14:36:32,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345638910] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:32,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:32,902 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 14:36:32,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691334591]
[2024-11-18 14:36:32,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:32,903 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 14:36:32,904 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:32,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 14:36:32,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:32,905 INFO  L87              Difference]: Start difference. First operand 54154 states and 106176 transitions. Second operand  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:35,907 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:35,907 INFO  L93              Difference]: Finished difference Result 108682 states and 213869 transitions.
[2024-11-18 14:36:35,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 14:36:35,908 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:35,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:36,361 INFO  L225             Difference]: With dead ends: 108682
[2024-11-18 14:36:36,361 INFO  L226             Difference]: Without dead ends: 54541
[2024-11-18 14:36:36,590 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 14:36:36,591 INFO  L432           NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:36,592 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1034 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:36:36,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54541 states.
[2024-11-18 14:36:40,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54541 to 54541.
[2024-11-18 14:36:40,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54541 states, 46315 states have (on average 1.4821764007341034) internal successors, (68647), 50436 states have internal predecessors, (68647), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 5652 states have return successors, (35214), 2700 states have call predecessors, (35214), 2573 states have call successors, (35214)
[2024-11-18 14:36:40,323 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54541 states to 54541 states and 106434 transitions.
[2024-11-18 14:36:40,357 INFO  L78                 Accepts]: Start accepts. Automaton has 54541 states and 106434 transitions. Word has length 91
[2024-11-18 14:36:40,358 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 14:36:40,358 INFO  L471      AbstractCegarLoop]: Abstraction has 54541 states and 106434 transitions.
[2024-11-18 14:36:40,358 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:40,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 54541 states and 106434 transitions.
[2024-11-18 14:36:40,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-11-18 14:36:40,379 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:36:40,379 INFO  L215           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]
[2024-11-18 14:36:40,379 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-18 14:36:40,380 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:36:40,380 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:36:40,380 INFO  L85        PathProgramCache]: Analyzing trace with hash -254535914, now seen corresponding path program 1 times
[2024-11-18 14:36:40,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:36:40,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418091445]
[2024-11-18 14:36:40,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:36:40,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:36:40,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:36:40,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-18 14:36:40,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:36:40,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418091445]
[2024-11-18 14:36:40,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418091445] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:36:40,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 14:36:40,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 14:36:40,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145366606]
[2024-11-18 14:36:40,423 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:36:40,424 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 14:36:40,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:36:40,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 14:36:40,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 14:36:40,425 INFO  L87              Difference]: Start difference. First operand 54541 states and 106434 transitions. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-18 14:36:45,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:36:45,172 INFO  L93              Difference]: Finished difference Result 162642 states and 318665 transitions.
[2024-11-18 14:36:45,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 14:36:45,173 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91
[2024-11-18 14:36:45,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:36:45,869 INFO  L225             Difference]: With dead ends: 162642
[2024-11-18 14:36:45,869 INFO  L226             Difference]: Without dead ends: 108114
[2024-11-18 14:36:46,038 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
[2024-11-18 14:36:46,039 INFO  L432           NwaCegarLoop]: 484 mSDtfsCounter, 467 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 14:36:46,039 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 907 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 14:36:46,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108114 states.