/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/Problem05_label45.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-01 03:32:06,688 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-04-01 03:32:06,690 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2023-04-01 03:32:06,720 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-04-01 03:32:06,721 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-04-01 03:32:06,723 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-04-01 03:32:06,724 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-04-01 03:32:06,725 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-04-01 03:32:06,726 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-04-01 03:32:06,727 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-04-01 03:32:06,727 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-04-01 03:32:06,728 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-04-01 03:32:06,728 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-04-01 03:32:06,729 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-04-01 03:32:06,730 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-04-01 03:32:06,731 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-04-01 03:32:06,732 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-04-01 03:32:06,734 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-04-01 03:32:06,735 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-04-01 03:32:06,736 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-04-01 03:32:06,737 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-04-01 03:32:06,738 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-04-01 03:32:06,741 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2023-04-01 03:32:06,742 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2023-04-01 03:32:06,744 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
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[2023-04-01 03:32:06,745 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-01 03:32:06,746 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-01 03:32:06,747 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-04-01 03:32:06,747 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2023-04-01 03:32:06,748 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-04-01 03:32:06,749 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-01 03:32:06,750 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
[2023-04-01 03:32:06,769 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-01 03:32:06,769 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-01 03:32:06,769 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-01 03:32:06,769 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-01 03:32:06,770 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-01 03:32:06,770 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-01 03:32:06,770 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2023-04-01 03:32:06,770 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2023-04-01 03:32:06,771 INFO  L138        SettingsManager]:  * Interval Domain=false
[2023-04-01 03:32:06,771 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-04-01 03:32:06,772 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2023-04-01 03:32:06,772 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2023-04-01 03:32:06,772 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-01 03:32:06,772 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-01 03:32:06,772 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-01 03:32:06,772 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-01 03:32:06,773 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-01 03:32:06,774 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-01 03:32:06,774 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-01 03:32:06,774 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 03:32:06,774 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-01 03:32:06,774 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2023-04-01 03:32:06,774 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-01 03:32:06,774 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-01 03:32:06,775 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2023-04-01 03:32:06,775 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-01 03:32:06,775 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-01 03:32:06,775 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2023-04-01 03:32:06,775 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain
[2023-04-01 03:32:07,024 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-01 03:32:07,051 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-01 03:32:07,053 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-01 03:32:07,054 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-01 03:32:07,055 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-01 03:32:07,056 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label45.c
[2023-04-01 03:32:08,281 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-01 03:32:08,798 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-01 03:32:08,799 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label45.c
[2023-04-01 03:32:08,847 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/715f4b106/e127868612694f339a19e487c8469220/FLAGe5753f3db
[2023-04-01 03:32:08,864 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/715f4b106/e127868612694f339a19e487c8469220
[2023-04-01 03:32:08,867 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-01 03:32:08,868 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-01 03:32:08,871 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-01 03:32:08,871 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-01 03:32:08,875 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-01 03:32:08,875 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 03:32:08" (1/1) ...
[2023-04-01 03:32:08,876 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fd6ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:08, skipping insertion in model container
[2023-04-01 03:32:08,876 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 03:32:08" (1/1) ...
[2023-04-01 03:32:08,883 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-01 03:32:09,062 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-01 03:32:10,637 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/Problem05_label45.c[379980,379993]
[2023-04-01 03:32:10,655 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 03:32:10,664 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-01 03:32:11,479 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/Problem05_label45.c[379980,379993]
[2023-04-01 03:32:11,486 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 03:32:11,531 INFO  L208         MainTranslator]: Completed translation
[2023-04-01 03:32:11,533 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11 WrapperNode
[2023-04-01 03:32:11,533 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-01 03:32:11,535 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-01 03:32:11,535 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-01 03:32:11,535 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-01 03:32:11,545 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,546 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,609 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,610 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,813 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,849 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,879 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,903 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,959 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-01 03:32:11,960 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-01 03:32:11,961 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-01 03:32:11,961 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-01 03:32:11,962 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (1/1) ...
[2023-04-01 03:32:11,969 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 03:32:11,979 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 03:32:12,010 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)
[2023-04-01 03:32:12,115 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
[2023-04-01 03:32:12,144 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-01 03:32:12,144 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2023-04-01 03:32:12,145 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-01 03:32:12,146 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-01 03:32:12,147 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-01 03:32:12,276 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-01 03:32:12,278 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-01 03:32:18,369 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-01 03:32:19,622 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-01 03:32:19,623 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-04-01 03:32:19,627 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 03:32:19 BoogieIcfgContainer
[2023-04-01 03:32:19,628 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-01 03:32:19,629 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-01 03:32:19,629 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-01 03:32:19,632 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-01 03:32:19,632 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 03:32:08" (1/3) ...
[2023-04-01 03:32:19,632 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca712c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 03:32:19, skipping insertion in model container
[2023-04-01 03:32:19,632 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:32:11" (2/3) ...
[2023-04-01 03:32:19,633 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca712c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 03:32:19, skipping insertion in model container
[2023-04-01 03:32:19,633 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 03:32:19" (3/3) ...
[2023-04-01 03:32:19,634 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label45.c
[2023-04-01 03:32:19,647 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-01 03:32:19,647 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-01 03:32:19,731 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-01 03:32:19,738 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;@6ff16430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-04-01 03:32:19,738 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-01 03:32:19,749 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1681 states, 1659 states have (on average 1.9825195901145267) internal successors, (3289), 1660 states have internal predecessors, (3289), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2023-04-01 03:32:19,912 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1652
[2023-04-01 03:32:19,913 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 03:32:19,915 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 03:32:19,915 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 03:32:19,920 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 03:32:19,921 INFO  L85        PathProgramCache]: Analyzing trace with hash -710323326, now seen corresponding path program 1 times
[2023-04-01 03:32:19,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-01 03:32:19,930 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504974110]
[2023-04-01 03:32:19,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 03:32:19,931 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 03:32:20,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 03:32:28,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 03:32:28,035 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-01 03:32:28,035 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504974110]
[2023-04-01 03:32:28,036 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504974110] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 03:32:28,036 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 03:32:28,036 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-04-01 03:32:28,038 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183193443]
[2023-04-01 03:32:28,038 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 03:32:28,046 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-01 03:32:28,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-01 03:32:28,082 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-01 03:32:28,083 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-01 03:32:28,090 INFO  L87              Difference]: Start difference. First operand  has 1681 states, 1659 states have (on average 1.9825195901145267) internal successors, (3289), 1660 states have internal predecessors, (3289), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-01 03:32:34,536 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 03:32:34,536 INFO  L93              Difference]: Finished difference Result 5031 states and 9947 transitions.
[2023-04-01 03:32:34,537 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-01 03:32:34,539 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1651
[2023-04-01 03:32:34,545 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 03:32:34,586 INFO  L225             Difference]: With dead ends: 5031
[2023-04-01 03:32:34,586 INFO  L226             Difference]: Without dead ends: 3347
[2023-04-01 03:32:34,597 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-01 03:32:34,600 INFO  L413           NwaCegarLoop]: 271 mSDtfsCounter, 275 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 2708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 7545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2708 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-04-01 03:32:34,601 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 319 Invalid, 7545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2708 Valid, 4837 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-04-01 03:32:34,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3347 states.
[2023-04-01 03:32:34,785 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3347.
[2023-04-01 03:32:34,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3347 states, 3311 states have (on average 1.9081848384173965) internal successors, (6318), 3311 states have internal predecessors, (6318), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (33), 17 states have call predecessors, (33), 17 states have call successors, (33)
[2023-04-01 03:32:34,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 6369 transitions.
[2023-04-01 03:32:34,809 INFO  L78                 Accepts]: Start accepts. Automaton has 3347 states and 6369 transitions. Word has length 1651
[2023-04-01 03:32:34,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 03:32:34,814 INFO  L495      AbstractCegarLoop]: Abstraction has 3347 states and 6369 transitions.
[2023-04-01 03:32:34,815 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-01 03:32:34,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 3347 states and 6369 transitions.
[2023-04-01 03:32:34,882 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1702
[2023-04-01 03:32:34,882 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 03:32:34,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 03:32:34,884 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-01 03:32:34,884 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 03:32:34,885 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 03:32:34,886 INFO  L85        PathProgramCache]: Analyzing trace with hash -1778519875, now seen corresponding path program 1 times
[2023-04-01 03:32:34,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-01 03:32:34,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340417210]
[2023-04-01 03:32:34,887 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 03:32:34,887 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 03:32:35,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 03:32:37,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 03:32:37,721 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-01 03:32:37,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340417210]
[2023-04-01 03:32:37,722 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340417210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 03:32:37,722 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 03:32:37,722 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-04-01 03:32:37,722 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876657214]
[2023-04-01 03:32:37,723 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 03:32:37,726 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 03:32:37,727 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-01 03:32:37,729 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 03:32:37,730 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-04-01 03:32:37,733 INFO  L87              Difference]: Start difference. First operand 3347 states and 6369 transitions. Second operand  has 5 states, 5 states have (on average 337.6) internal successors, (1688), 4 states have internal predecessors, (1688), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 03:32:45,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 03:32:45,266 INFO  L93              Difference]: Finished difference Result 10180 states and 19404 transitions.
[2023-04-01 03:32:45,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 03:32:45,267 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 337.6) internal successors, (1688), 4 states have internal predecessors, (1688), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1701
[2023-04-01 03:32:45,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 03:32:45,309 INFO  L225             Difference]: With dead ends: 10180
[2023-04-01 03:32:45,310 INFO  L226             Difference]: Without dead ends: 6838
[2023-04-01 03:32:45,323 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
[2023-04-01 03:32:45,325 INFO  L413           NwaCegarLoop]: 104 mSDtfsCounter, 5409 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 10110 mSolverCounterSat, 2098 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 12208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2098 IncrementalHoareTripleChecker+Valid, 10110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2023-04-01 03:32:45,326 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5409 Valid, 253 Invalid, 12208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2098 Valid, 10110 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2023-04-01 03:32:45,335 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6838 states.
[2023-04-01 03:32:45,534 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6838 to 6807.
[2023-04-01 03:32:45,549 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6807 states, 6697 states have (on average 1.8155890697327162) internal successors, (12159), 6703 states have internal predecessors, (12159), 34 states have call successors, (34), 34 states have call predecessors, (34), 75 states have return successors, (192), 69 states have call predecessors, (192), 33 states have call successors, (192)
[2023-04-01 03:32:45,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 12385 transitions.
[2023-04-01 03:32:45,572 INFO  L78                 Accepts]: Start accepts. Automaton has 6807 states and 12385 transitions. Word has length 1701
[2023-04-01 03:32:45,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 03:32:45,572 INFO  L495      AbstractCegarLoop]: Abstraction has 6807 states and 12385 transitions.
[2023-04-01 03:32:45,573 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 337.6) internal successors, (1688), 4 states have internal predecessors, (1688), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 03:32:45,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 6807 states and 12385 transitions.
[2023-04-01 03:32:45,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1705
[2023-04-01 03:32:45,656 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 03:32:45,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 03:32:45,657 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-04-01 03:32:45,657 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 03:32:45,657 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 03:32:45,658 INFO  L85        PathProgramCache]: Analyzing trace with hash 202855424, now seen corresponding path program 1 times
[2023-04-01 03:32:45,658 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-01 03:32:45,658 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383127429]
[2023-04-01 03:32:45,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 03:32:45,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 03:32:45,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 03:32:47,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 03:32:47,477 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-01 03:32:47,478 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383127429]
[2023-04-01 03:32:47,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383127429] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 03:32:47,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 03:32:47,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-04-01 03:32:47,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799027525]
[2023-04-01 03:32:47,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 03:32:47,483 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 03:32:47,484 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-01 03:32:47,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 03:32:47,486 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-04-01 03:32:47,486 INFO  L87              Difference]: Start difference. First operand 6807 states and 12385 transitions. Second operand  has 5 states, 5 states have (on average 338.2) internal successors, (1691), 4 states have internal predecessors, (1691), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 03:32:53,982 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 03:32:53,982 INFO  L93              Difference]: Finished difference Result 19016 states and 34593 transitions.
[2023-04-01 03:32:53,983 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 03:32:53,984 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 338.2) internal successors, (1691), 4 states have internal predecessors, (1691), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1704
[2023-04-01 03:32:53,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 03:32:54,034 INFO  L225             Difference]: With dead ends: 19016
[2023-04-01 03:32:54,035 INFO  L226             Difference]: Without dead ends: 12214
[2023-04-01 03:32:54,050 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
[2023-04-01 03:32:54,051 INFO  L413           NwaCegarLoop]: 71 mSDtfsCounter, 8463 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 8247 mSolverCounterSat, 2566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8463 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 10813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2566 IncrementalHoareTripleChecker+Valid, 8247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2023-04-01 03:32:54,051 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8463 Valid, 174 Invalid, 10813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2566 Valid, 8247 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2023-04-01 03:32:54,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12214 states.
[2023-04-01 03:32:54,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12214 to 12165.
[2023-04-01 03:32:54,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12165 states, 11885 states have (on average 1.6933950357593606) internal successors, (20126), 11909 states have internal predecessors, (20126), 58 states have call successors, (58), 58 states have call predecessors, (58), 221 states have return successors, (733), 197 states have call predecessors, (733), 57 states have call successors, (733)
[2023-04-01 03:32:54,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12165 states to 12165 states and 20917 transitions.
[2023-04-01 03:32:54,332 INFO  L78                 Accepts]: Start accepts. Automaton has 12165 states and 20917 transitions. Word has length 1704
[2023-04-01 03:32:54,332 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 03:32:54,333 INFO  L495      AbstractCegarLoop]: Abstraction has 12165 states and 20917 transitions.
[2023-04-01 03:32:54,334 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 338.2) internal successors, (1691), 4 states have internal predecessors, (1691), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 03:32:54,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 12165 states and 20917 transitions.
[2023-04-01 03:32:54,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1759
[2023-04-01 03:32:54,378 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 03:32:54,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 03:32:54,379 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-04-01 03:32:54,380 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 03:32:54,381 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 03:32:54,382 INFO  L85        PathProgramCache]: Analyzing trace with hash -1308606682, now seen corresponding path program 1 times
[2023-04-01 03:32:54,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-01 03:32:54,382 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972059075]
[2023-04-01 03:32:54,382 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 03:32:54,382 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 03:32:54,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat