/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-rers2012/Problem04_label59.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-02 17:07:37,866 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-04-02 17:07:37,868 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2023-04-02 17:07:37,895 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-04-02 17:07:37,897 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2023-04-02 17:07:37,904 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2023-04-02 17:07:37,907 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-04-02 17:07:37,907 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-04-02 17:07:37,908 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-04-02 17:07:37,909 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-04-02 17:07:37,910 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2023-04-02 17:07:37,914 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-04-02 17:07:37,915 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-04-02 17:07:37,924 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2023-04-02 17:07:37,927 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-04-02 17:07:37,928 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-02 17:07:37,929 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-02 17:07:37,929 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-04-02 17:07:37,929 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2023-04-02 17:07:37,930 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-04-02 17:07:37,930 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-04-02 17:07:37,931 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-02 17:07:37,932 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf
[2023-04-02 17:07:37,951 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-02 17:07:37,951 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-02 17:07:37,951 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-02 17:07:37,951 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-02 17:07:37,952 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2023-04-02 17:07:37,952 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2023-04-02 17:07:37,952 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * Interval Domain=false
[2023-04-02 17:07:37,953 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2023-04-02 17:07:37,953 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-02 17:07:37,953 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-02 17:07:37,954 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-02 17:07:37,955 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 17:07:37,955 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-02 17:07:37,955 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-02 17:07:37,956 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2023-04-02 17:07:37,956 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain
[2023-04-02 17:07:38,115 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-02 17:07:38,147 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-02 17:07:38,149 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-02 17:07:38,149 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-02 17:07:38,150 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-02 17:07:38,151 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem04_label59.c
[2023-04-02 17:07:39,165 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-02 17:07:39,559 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-02 17:07:39,560 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label59.c
[2023-04-02 17:07:39,586 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f22e27a/da677d1cf86a4fedbcb1d1b79d4b8730/FLAG4f37b5446
[2023-04-02 17:07:39,783 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f22e27a/da677d1cf86a4fedbcb1d1b79d4b8730
[2023-04-02 17:07:39,785 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-02 17:07:39,786 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-02 17:07:39,787 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-02 17:07:39,787 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-02 17:07:39,789 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-02 17:07:39,790 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:07:39" (1/1) ...
[2023-04-02 17:07:39,791 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9c9ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:39, skipping insertion in model container
[2023-04-02 17:07:39,791 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:07:39" (1/1) ...
[2023-04-02 17:07:39,796 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-02 17:07:39,881 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-02 17:07:40,693 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label59.c[181007,181020]
[2023-04-02 17:07:40,706 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 17:07:40,713 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-02 17:07:41,009 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label59.c[181007,181020]
[2023-04-02 17:07:41,014 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 17:07:41,032 INFO  L208         MainTranslator]: Completed translation
[2023-04-02 17:07:41,033 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41 WrapperNode
[2023-04-02 17:07:41,033 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-02 17:07:41,034 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-02 17:07:41,034 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-02 17:07:41,034 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-02 17:07:41,042 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,042 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,083 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,083 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,189 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,206 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,220 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,228 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,243 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-02 17:07:41,244 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-02 17:07:41,244 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-02 17:07:41,244 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-02 17:07:41,245 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (1/1) ...
[2023-04-02 17:07:41,251 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 17:07:41,257 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-02 17:07:41,277 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-04-02 17:07:41,303 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-04-02 17:07:41,304 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-02 17:07:41,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-02 17:07:41,305 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-02 17:07:41,305 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-02 17:07:41,293 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-04-02 17:07:41,396 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-02 17:07:41,397 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-02 17:07:44,122 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-02 17:07:44,335 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-02 17:07:44,335 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-04-02 17:07:44,338 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:07:44 BoogieIcfgContainer
[2023-04-02 17:07:44,338 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-02 17:07:44,340 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-02 17:07:44,340 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-02 17:07:44,342 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-02 17:07:44,342 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:07:39" (1/3) ...
[2023-04-02 17:07:44,342 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:07:44, skipping insertion in model container
[2023-04-02 17:07:44,342 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:07:41" (2/3) ...
[2023-04-02 17:07:44,342 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:07:44, skipping insertion in model container
[2023-04-02 17:07:44,343 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:07:44" (3/3) ...
[2023-04-02 17:07:44,343 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem04_label59.c
[2023-04-02 17:07:44,354 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-02 17:07:44,354 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-02 17:07:44,394 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-02 17:07:44,398 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@32a6e078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-04-02 17:07:44,399 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-02 17:07:44,404 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 785 states, 771 states have (on average 1.9779507133592737) internal successors, (1525), 772 states have internal predecessors, (1525), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2023-04-02 17:07:44,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 768
[2023-04-02 17:07:44,428 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 17:07:44,429 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 17:07:44,429 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 17:07:44,432 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 17:07:44,433 INFO  L85        PathProgramCache]: Analyzing trace with hash -1101341257, now seen corresponding path program 1 times
[2023-04-02 17:07:44,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 17:07:44,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702785086]
[2023-04-02 17:07:44,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:07:44,440 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 17:07:44,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:07:48,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:07:48,230 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-02 17:07:48,231 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702785086]
[2023-04-02 17:07:48,231 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702785086] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-02 17:07:48,231 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-02 17:07:48,232 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-04-02 17:07:48,232 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233065300]
[2023-04-02 17:07:48,233 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-02 17:07:48,237 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-02 17:07:48,238 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-02 17:07:48,262 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-02 17:07:48,263 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-02 17:07:48,266 INFO  L87              Difference]: Start difference. First operand  has 785 states, 771 states have (on average 1.9779507133592737) internal successors, (1525), 772 states have internal predecessors, (1525), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand  has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 2 states have internal predecessors, (760), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-02 17:07:50,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-02 17:07:50,817 INFO  L93              Difference]: Finished difference Result 2343 states and 4615 transitions.
[2023-04-02 17:07:50,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-02 17:07:50,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 2 states have internal predecessors, (760), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 767
[2023-04-02 17:07:50,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-02 17:07:50,845 INFO  L225             Difference]: With dead ends: 2343
[2023-04-02 17:07:50,845 INFO  L226             Difference]: Without dead ends: 1555
[2023-04-02 17:07:50,852 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-02 17:07:50,856 INFO  L413           NwaCegarLoop]: 107 mSDtfsCounter, 46 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 1375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1375 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-04-02 17:07:50,857 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 135 Invalid, 3612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1375 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-04-02 17:07:50,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1555 states.
[2023-04-02 17:07:50,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555.
[2023-04-02 17:07:50,979 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1555 states, 1535 states have (on average 1.930944625407166) internal successors, (2964), 1535 states have internal predecessors, (2964), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17)
[2023-04-02 17:07:50,983 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2991 transitions.
[2023-04-02 17:07:50,984 INFO  L78                 Accepts]: Start accepts. Automaton has 1555 states and 2991 transitions. Word has length 767
[2023-04-02 17:07:50,986 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-02 17:07:50,986 INFO  L495      AbstractCegarLoop]: Abstraction has 1555 states and 2991 transitions.
[2023-04-02 17:07:50,987 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 2 states have internal predecessors, (760), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-02 17:07:50,987 INFO  L276                IsEmpty]: Start isEmpty. Operand 1555 states and 2991 transitions.
[2023-04-02 17:07:51,001 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 787
[2023-04-02 17:07:51,001 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 17:07:51,002 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 17:07:51,002 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-02 17:07:51,002 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 17:07:51,003 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 17:07:51,003 INFO  L85        PathProgramCache]: Analyzing trace with hash -161821297, now seen corresponding path program 1 times
[2023-04-02 17:07:51,003 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 17:07:51,004 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967135815]
[2023-04-02 17:07:51,004 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:07:51,004 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 17:07:51,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:07:52,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:07:52,992 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-02 17:07:52,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967135815]
[2023-04-02 17:07:52,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967135815] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-02 17:07:52,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924337847]
[2023-04-02 17:07:52,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:07:52,993 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-02 17:07:52,993 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-02 17:07:52,995 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-04-02 17:07:53,009 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-04-02 17:07:53,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:07:53,337 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-04-02 17:07:53,362 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-02 17:07:54,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:07:54,176 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-02 17:07:54,176 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924337847] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-02 17:07:54,176 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-02 17:07:54,176 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2023-04-02 17:07:54,177 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26484038]
[2023-04-02 17:07:54,177 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-02 17:07:54,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-02 17:07:54,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-02 17:07:54,179 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-02 17:07:54,179 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-02 17:07:54,180 INFO  L87              Difference]: Start difference. First operand 1555 states and 2991 transitions. Second operand  has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 17:07:56,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-02 17:07:56,494 INFO  L93              Difference]: Finished difference Result 4653 states and 9010 transitions.
[2023-04-02 17:07:56,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-02 17:07:56,495 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 786
[2023-04-02 17:07:56,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-02 17:07:56,506 INFO  L225             Difference]: With dead ends: 4653
[2023-04-02 17:07:56,506 INFO  L226             Difference]: Without dead ends: 3103
[2023-04-02 17:07:56,508 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-02 17:07:56,509 INFO  L413           NwaCegarLoop]: 1530 mSDtfsCounter, 15 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-04-02 17:07:56,509 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1561 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-04-02 17:07:56,512 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3103 states.
[2023-04-02 17:07:56,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103.
[2023-04-02 17:07:56,553 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3103 states, 3067 states have (on average 1.641995435278774) internal successors, (5036), 3067 states have internal predecessors, (5036), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (65), 17 states have call predecessors, (65), 17 states have call successors, (65)
[2023-04-02 17:07:56,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 5119 transitions.
[2023-04-02 17:07:56,563 INFO  L78                 Accepts]: Start accepts. Automaton has 3103 states and 5119 transitions. Word has length 786
[2023-04-02 17:07:56,564 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-02 17:07:56,564 INFO  L495      AbstractCegarLoop]: Abstraction has 3103 states and 5119 transitions.
[2023-04-02 17:07:56,565 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 17:07:56,565 INFO  L276                IsEmpty]: Start isEmpty. Operand 3103 states and 5119 transitions.
[2023-04-02 17:07:56,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 794
[2023-04-02 17:07:56,578 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 17:07:56,579 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 17:07:56,588 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-04-02 17:07:56,788 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-02 17:07:56,790 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 17:07:56,791 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 17:07:56,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 1689944757, now seen corresponding path program 1 times
[2023-04-02 17:07:56,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 17:07:56,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393299572]
[2023-04-02 17:07:56,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:07:56,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 17:07:56,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:07:58,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:07:58,001 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-02 17:07:58,001 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393299572]
[2023-04-02 17:07:58,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393299572] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-02 17:07:58,004 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-02 17:07:58,004 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-04-02 17:07:58,004 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109524653]
[2023-04-02 17:07:58,004 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-02 17:07:58,005 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-02 17:07:58,005 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-02 17:07:58,006 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-02 17:07:58,006 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-02 17:07:58,007 INFO  L87              Difference]: Start difference. First operand 3103 states and 5119 transitions. Second operand  has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 17:08:00,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-02 17:08:00,333 INFO  L93              Difference]: Finished difference Result 9297 states and 15524 transitions.
[2023-04-02 17:08:00,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-02 17:08:00,336 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 793
[2023-04-02 17:08:00,337 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-02 17:08:00,362 INFO  L225             Difference]: With dead ends: 9297
[2023-04-02 17:08:00,362 INFO  L226             Difference]: Without dead ends: 6199
[2023-04-02 17:08:00,372 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-02 17:08:00,374 INFO  L413           NwaCegarLoop]: 1522 mSDtfsCounter, 46 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 3431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-04-02 17:08:00,375 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1553 Invalid, 3431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-04-02 17:08:00,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6199 states.
[2023-04-02 17:08:00,496 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 6199.
[2023-04-02 17:08:00,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6199 states, 6131 states have (on average 1.5589626488337955) internal successors, (9558), 6131 states have internal predecessors, (9558), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (249), 33 states have call predecessors, (249), 33 states have call successors, (249)
[2023-04-02 17:08:00,522 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 9841 transitions.
[2023-04-02 17:08:00,522 INFO  L78                 Accepts]: Start accepts. Automaton has 6199 states and 9841 transitions. Word has length 793
[2023-04-02 17:08:00,523 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-02 17:08:00,523 INFO  L495      AbstractCegarLoop]: Abstraction has 6199 states and 9841 transitions.
[2023-04-02 17:08:00,524 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-02 17:08:00,524 INFO  L276                IsEmpty]: Start isEmpty. Operand 6199 states and 9841 transitions.
[2023-04-02 17:08:00,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 876
[2023-04-02 17:08:00,540 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 17:08:00,541 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 17:08:00,541 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-04-02 17:08:00,541 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 17:08:00,542 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 17:08:00,542 INFO  L85        PathProgramCache]: Analyzing trace with hash -1762553903, now seen corresponding path program 1 times
[2023-04-02 17:08:00,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 17:08:00,542 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616211747]
[2023-04-02 17:08:00,542 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:08:00,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 17:08:00,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:08:01,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:08:01,811 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-02 17:08:01,811 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616211747]
[2023-04-02 17:08:01,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616211747] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-02 17:08:01,812 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-02 17:08:01,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-04-02 17:08:01,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249154829]
[2023-04-02 17:08:01,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-02 17:08:01,813 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-02 17:08:01,813 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-02 17:08:01,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-02 17:08:01,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-04-02 17:08:01,814 INFO  L87              Difference]: Start difference. First operand 6199 states and 9841 transitions. Second operand  has 5 states, 5 states have (on average 173.2) internal successors, (866), 4 states have internal predecessors, (866), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-02 17:08:04,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-02 17:08:04,988 INFO  L93              Difference]: Finished difference Result 18057 states and 29113 transitions.
[2023-04-02 17:08:04,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-02 17:08:04,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 173.2) internal successors, (866), 4 states have internal predecessors, (866), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 875
[2023-04-02 17:08:04,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-02 17:08:05,042 INFO  L225             Difference]: With dead ends: 18057
[2023-04-02 17:08:05,042 INFO  L226             Difference]: Without dead ends: 11863
[2023-04-02 17:08:05,058 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-04-02 17:08:05,058 INFO  L413           NwaCegarLoop]: 46 mSDtfsCounter, 2436 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 1490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 5833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1490 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2023-04-02 17:08:05,059 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2436 Valid, 115 Invalid, 5833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1490 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2023-04-02 17:08:05,068 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11863 states.
[2023-04-02 17:08:05,234 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 11792.
[2023-04-02 17:08:05,261 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11792 states, 11602 states have (on average 1.4743147733149458) internal successors, (17105), 11625 states have internal predecessors, (17105), 62 states have call successors, (62), 62 states have call predecessors, (62), 127 states have return successors, (905), 104 states have call predecessors, (905), 61 states have call successors, (905)
[2023-04-02 17:08:05,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11792 states to 11792 states and 18072 transitions.
[2023-04-02 17:08:05,285 INFO  L78                 Accepts]: Start accepts. Automaton has 11792 states and 18072 transitions. Word has length 875
[2023-04-02 17:08:05,285 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-02 17:08:05,285 INFO  L495      AbstractCegarLoop]: Abstraction has 11792 states and 18072 transitions.
[2023-04-02 17:08:05,286 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 173.2) internal successors, (866), 4 states have internal predecessors, (866), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-02 17:08:05,286 INFO  L276                IsEmpty]: Start isEmpty. Operand 11792 states and 18072 transitions.
[2023-04-02 17:08:05,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 879
[2023-04-02 17:08:05,309 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 17:08:05,310 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-02 17:08:05,310 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-04-02 17:08:05,310 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 17:08:05,310 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 17:08:05,311 INFO  L85        PathProgramCache]: Analyzing trace with hash -1102170227, now seen corresponding path program 1 times
[2023-04-02 17:08:05,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 17:08:05,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184892336]
[2023-04-02 17:08:05,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:08:05,313 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 17:08:05,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:08:06,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 131 backedges. 106 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:08:06,791 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-02 17:08:06,791 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184892336]
[2023-04-02 17:08:06,791 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184892336] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-02 17:08:06,791 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617252043]
[2023-04-02 17:08:06,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 17:08:06,792 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-02 17:08:06,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-02 17:08:06,793 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-04-02 17:08:06,809 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-04-02 17:08:07,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-02 17:08:07,081 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-02 17:08:07,092 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-02 17:08:07,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 131 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:08:07,211 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-02 17:08:07,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 131 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-02 17:08:07,466 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617252043] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-02 17:08:07,466 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [595386443]
[2023-04-02 17:08:07,499 INFO  L159        IcfgInterpreter]: Started Sifa with 771 locations of interest
[2023-04-02 17:08:07,499 INFO  L166        IcfgInterpreter]: Building call graph
[2023-04-02 17:08:07,503 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2023-04-02 17:08:07,506 INFO  L176        IcfgInterpreter]: Starting interpretation
[2023-04-02 17:08:07,506 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2023-04-02 17:08:07,736 INFO  L197        IcfgInterpreter]: Interpreting procedure main with input of size 76 for LOIs
[2023-04-02 17:08:18,932 WARN  L223               SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 1032 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)
[2023-04-02 17:09:09,602 WARN  L176   XnfTransformerHelper]: Simplifying disjunction of 18468 conjuctions. This might take some time...
[2023-04-02 17:09:23,994 INFO  L192   XnfTransformerHelper]: Simplified to disjunction of 18468 conjuctions.