/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-programs/Problem103_label55.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-02 21:15:56,021 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2023-04-02 21:15:56,023 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2023-04-02 21:15:56,060 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-04-02 21:15:56,061 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-04-02 21:15:56,063 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-04-02 21:15:56,066 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-04-02 21:15:56,068 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2023-04-02 21:15:56,070 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-04-02 21:15:56,074 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-04-02 21:15:56,076 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2023-04-02 21:15:56,077 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-04-02 21:15:56,078 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-04-02 21:15:56,080 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-04-02 21:15:56,081 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-04-02 21:15:56,082 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-04-02 21:15:56,083 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-04-02 21:15:56,083 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-04-02 21:15:56,085 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-04-02 21:15:56,089 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2023-04-02 21:15:56,090 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-04-02 21:15:56,091 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-04-02 21:15:56,092 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2023-04-02 21:15:56,093 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-04-02 21:15:56,101 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-04-02 21:15:56,101 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-04-02 21:15:56,101 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-04-02 21:15:56,103 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-04-02 21:15:56,103 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-04-02 21:15:56,104 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-04-02 21:15:56,104 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-04-02 21:15:56,105 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-04-02 21:15:56,106 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-02 21:15:56,106 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-02 21:15:56,107 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-04-02 21:15:56,107 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2023-04-02 21:15:56,108 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2023-04-02 21:15:56,109 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2023-04-02 21:15:56,109 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-02 21:15:56,110 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 21:15:56,138 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-02 21:15:56,139 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-02 21:15:56,139 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-02 21:15:56,139 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-02 21:15:56,140 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-02 21:15:56,140 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-02 21:15:56,140 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2023-04-02 21:15:56,141 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-04-02 21:15:56,141 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2023-04-02 21:15:56,141 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-04-02 21:15:56,141 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Interval Domain=false
[2023-04-02 21:15:56,142 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2023-04-02 21:15:56,142 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2023-04-02 21:15:56,143 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-02 21:15:56,143 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-02 21:15:56,143 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-02 21:15:56,143 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-02 21:15:56,143 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-02 21:15:56,143 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-02 21:15:56,144 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-02 21:15:56,144 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 21:15:56,145 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-02 21:15:56,145 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-02 21:15:56,146 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2023-04-02 21:15:56,146 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain
[2023-04-02 21:15:56,396 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-02 21:15:56,415 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-02 21:15:56,417 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-02 21:15:56,418 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-02 21:15:56,419 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-02 21:15:56,420 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem103_label55.c
[2023-04-02 21:15:57,549 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-02 21:16:00,185 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-02 21:16:00,186 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem103_label55.c
[2023-04-02 21:16:00,387 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62430f901/bc5c7667c4454c8f9d1e485dd5a566d1/FLAGed8110cd0
[2023-04-02 21:16:00,397 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62430f901/bc5c7667c4454c8f9d1e485dd5a566d1
[2023-04-02 21:16:00,399 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-02 21:16:00,401 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-02 21:16:00,402 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-02 21:16:00,402 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-02 21:16:00,407 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-02 21:16:00,408 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:16:00" (1/1) ...
[2023-04-02 21:16:00,408 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4162a17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:00, skipping insertion in model container
[2023-04-02 21:16:00,409 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:16:00" (1/1) ...
[2023-04-02 21:16:00,414 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-02 21:16:01,635 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-02 21:16:19,150 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-programs/Problem103_label55.c[6305362,6305375]
[2023-04-02 21:16:19,260 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 21:16:19,269 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-02 21:16:28,209 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-programs/Problem103_label55.c[6305362,6305375]
[2023-04-02 21:16:28,216 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-02 21:16:33,596 INFO  L208         MainTranslator]: Completed translation
[2023-04-02 21:16:33,596 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33 WrapperNode
[2023-04-02 21:16:33,596 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-02 21:16:33,597 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-02 21:16:33,597 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-02 21:16:33,597 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-02 21:16:33,607 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:33,608 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:35,274 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:35,274 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:39,122 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:39,637 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:40,308 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:40,502 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:41,311 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-02 21:16:41,315 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-02 21:16:41,316 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-02 21:16:41,316 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-02 21:16:41,317 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (1/1) ...
[2023-04-02 21:16:41,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-02 21:16:41,331 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-02 21:16:41,348 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 21:16:41,355 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 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-04-02 21:16:41,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2023-04-02 21:16:41,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2023-04-02 21:16:41,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2023-04-02 21:16:41,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2023-04-02 21:16:41,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2023-04-02 21:16:41,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output47
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output48
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output49
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output50
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output51
[2023-04-02 21:16:41,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output52
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output53
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output54
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output55
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output56
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output57
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output58
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output59
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output60
[2023-04-02 21:16:41,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output61
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output62
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output63
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output64
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output65
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output66
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output67
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output68
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output69
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output70
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output71
[2023-04-02 21:16:41,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output72
[2023-04-02 21:16:41,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output73
[2023-04-02 21:16:41,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output74
[2023-04-02 21:16:41,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output75
[2023-04-02 21:16:41,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-02 21:16:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-04-02 21:16:41,398 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2023-04-02 21:16:41,399 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2023-04-02 21:16:41,400 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2023-04-02 21:16:41,401 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2023-04-02 21:16:41,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2023-04-02 21:16:41,403 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2023-04-02 21:16:41,403 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2023-04-02 21:16:41,403 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2023-04-02 21:16:41,403 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2023-04-02 21:16:41,404 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2023-04-02 21:16:41,406 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2023-04-02 21:16:41,406 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output47
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output48
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output49
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output50
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output51
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output52
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output53
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output54
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output55
[2023-04-02 21:16:41,412 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output56
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output57
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output58
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output59
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output60
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output61
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output62
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output63
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output64
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output65
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output66
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output67
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output68
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output69
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output70
[2023-04-02 21:16:41,413 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output71
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output72
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output73
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output74
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output75
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-02 21:16:41,414 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-02 21:16:41,415 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-02 21:16:41,615 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-02 21:16:41,618 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-02 21:17:47,229 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-02 21:18:38,538 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-02 21:18:38,538 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-04-02 21:18:38,559 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:18:38 BoogieIcfgContainer
[2023-04-02 21:18:38,559 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-02 21:18:38,561 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-02 21:18:38,562 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-02 21:18:38,564 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-02 21:18:38,565 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:16:00" (1/3) ...
[2023-04-02 21:18:38,565 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef6c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:18:38, skipping insertion in model container
[2023-04-02 21:18:38,565 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:16:33" (2/3) ...
[2023-04-02 21:18:38,565 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ef6c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:18:38, skipping insertion in model container
[2023-04-02 21:18:38,566 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:18:38" (3/3) ...
[2023-04-02 21:18:38,567 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem103_label55.c
[2023-04-02 21:18:38,587 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-02 21:18:38,587 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-02 21:18:38,838 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-02 21:18:38,844 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;@1968ac20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-04-02 21:18:38,844 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-02 21:18:38,898 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16850 states, 16694 states have (on average 1.9862225949442913) internal successors, (33158), 16695 states have internal predecessors, (33158), 77 states have call successors, (77), 77 states have call predecessors, (77), 77 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77)
[2023-04-02 21:18:40,525 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16620
[2023-04-02 21:18:40,526 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-02 21:18:40,536 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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[2023-04-02 21:18:40,538 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output75Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-02 21:18:40,542 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-02 21:18:40,551 INFO  L85        PathProgramCache]: Analyzing trace with hash 114279563, now seen corresponding path program 1 times
[2023-04-02 21:18:40,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-02 21:18:40,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841953201]
[2023-04-02 21:18:40,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-02 21:18:40,564 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-02 21:18:45,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat