/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 15:00:23,609 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 15:00:23,613 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 15:00:23,660 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 15:00:23,660 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 15:00:23,671 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 15:00:23,673 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 15:00:23,677 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 15:00:23,680 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 15:00:23,683 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 15:00:23,684 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 15:00:23,687 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 15:00:23,687 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 15:00:23,690 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 15:00:23,693 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 15:00:23,695 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 15:00:23,697 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 15:00:23,698 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 15:00:23,701 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 15:00:23,707 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 15:00:23,710 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 15:00:23,712 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 15:00:23,713 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 15:00:23,714 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 15:00:23,719 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 15:00:23,720 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 15:00:23,720 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 15:00:23,723 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 15:00:23,724 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 15:00:23,725 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 15:00:23,725 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 15:00:23,726 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 15:00:23,727 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 15:00:23,728 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 15:00:23,729 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 15:00:23,729 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 15:00:23,730 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 15:00:23,730 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 15:00:23,731 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 15:00:23,732 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 15:00:23,734 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 15:00:23,735 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 15:00:23,785 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 15:00:23,785 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 15:00:23,788 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 15:00:23,789 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 15:00:23,789 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 15:00:23,789 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 15:00:23,790 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 15:00:23,790 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 15:00:23,790 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 15:00:23,790 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 15:00:23,791 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 15:00:23,792 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 15:00:23,792 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 15:00:23,793 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 15:00:23,793 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 15:00:23,793 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 15:00:23,793 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 15:00:23,794 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 15:00:23,794 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 15:00:23,794 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 15:00:23,794 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 15:00:23,794 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 15:00:23,795 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 15:00:23,795 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 15:00:23,795 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 15:00:23,795 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 15:00:23,795 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 15:00:23,796 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 15:00:23,796 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 15:00:23,796 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false
[2020-09-24 15:00:24,281 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 15:00:24,308 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 15:00:24,312 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 15:00:24,314 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 15:00:24,315 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 15:00:24,316 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c
[2020-09-24 15:00:24,407 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b2897fac/aa06c10f93484c81b512005ea53153a5/FLAGeebb7c8c6
[2020-09-24 15:00:25,065 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 15:00:25,068 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label44.c
[2020-09-24 15:00:25,082 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b2897fac/aa06c10f93484c81b512005ea53153a5/FLAGeebb7c8c6
[2020-09-24 15:00:25,294 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b2897fac/aa06c10f93484c81b512005ea53153a5
[2020-09-24 15:00:25,310 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 15:00:25,316 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 15:00:25,317 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 15:00:25,318 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 15:00:25,322 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 15:00:25,323 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:00:25" (1/1) ...
[2020-09-24 15:00:25,330 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbfe068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:25, skipping insertion in model container
[2020-09-24 15:00:25,331 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:00:25" (1/1) ...
[2020-09-24 15:00:25,339 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 15:00:25,400 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 15:00:25,894 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 15:00:25,902 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 15:00:26,131 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 15:00:26,152 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 15:00:26,152 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26 WrapperNode
[2020-09-24 15:00:26,152 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 15:00:26,153 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 15:00:26,153 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 15:00:26,154 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 15:00:26,174 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,175 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,197 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,198 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,242 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,262 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,273 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
[2020-09-24 15:00:26,286 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 15:00:26,287 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 15:00:26,288 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 15:00:26,288 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 15:00:26,296 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 15:00:26,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 15:00:26,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 15:00:26,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-24 15:00:26,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 15:00:26,402 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-24 15:00:26,403 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 15:00:26,403 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 15:00:26,403 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 15:00:26,403 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 15:00:26,404 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 15:00:26,405 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 15:00:27,914 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 15:00:27,914 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 15:00:27,932 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:00:27 BoogieIcfgContainer
[2020-09-24 15:00:27,933 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 15:00:27,934 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 15:00:27,934 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 15:00:27,939 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 15:00:27,940 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:00:25" (1/3) ...
[2020-09-24 15:00:27,941 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d0db3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:00:27, skipping insertion in model container
[2020-09-24 15:00:27,942 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:00:26" (2/3) ...
[2020-09-24 15:00:27,942 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d0db3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:00:27, skipping insertion in model container
[2020-09-24 15:00:27,943 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:00:27" (3/3) ...
[2020-09-24 15:00:27,946 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label44.c
[2020-09-24 15:00:27,958 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 15:00:27,979 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 15:00:28,002 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 15:00:28,036 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 15:00:28,036 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 15:00:28,037 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 15:00:28,037 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 15:00:28,037 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 15:00:28,037 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 15:00:28,037 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 15:00:28,037 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 15:00:28,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states.
[2020-09-24 15:00:28,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2020-09-24 15:00:28,093 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:28,095 INFO  L422         BasicCegarLoop]: 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]
[2020-09-24 15:00:28,095 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:28,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:28,103 INFO  L82        PathProgramCache]: Analyzing trace with hash 948138895, now seen corresponding path program 1 times
[2020-09-24 15:00:28,114 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:28,115 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967429720]
[2020-09-24 15:00:28,115 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:28,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:28,730 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:28,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:28,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 15:00:28,805 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967429720]
[2020-09-24 15:00:28,807 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 15:00:28,808 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 15:00:28,809 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145086837]
[2020-09-24 15:00:28,849 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 15:00:28,850 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:28,867 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 15:00:28,869 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 15:00:28,872 INFO  L87              Difference]: Start difference. First operand 525 states. Second operand 5 states.
[2020-09-24 15:00:31,594 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:31,594 INFO  L93              Difference]: Finished difference Result 1360 states and 1895 transitions.
[2020-09-24 15:00:31,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 15:00:31,597 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 112
[2020-09-24 15:00:31,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:31,630 INFO  L225             Difference]: With dead ends: 1360
[2020-09-24 15:00:31,630 INFO  L226             Difference]: Without dead ends: 781
[2020-09-24 15:00:31,660 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 15:00:31,689 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 781 states.
[2020-09-24 15:00:31,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 746.
[2020-09-24 15:00:31,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 746 states.
[2020-09-24 15:00:31,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 914 transitions.
[2020-09-24 15:00:31,830 INFO  L78                 Accepts]: Start accepts. Automaton has 746 states and 914 transitions. Word has length 112
[2020-09-24 15:00:31,831 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:31,831 INFO  L479      AbstractCegarLoop]: Abstraction has 746 states and 914 transitions.
[2020-09-24 15:00:31,831 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 15:00:31,831 INFO  L276                IsEmpty]: Start isEmpty. Operand 746 states and 914 transitions.
[2020-09-24 15:00:31,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2020-09-24 15:00:31,844 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:31,845 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-09-24 15:00:31,845 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 15:00:31,845 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:31,846 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:31,846 INFO  L82        PathProgramCache]: Analyzing trace with hash 1116167648, now seen corresponding path program 1 times
[2020-09-24 15:00:31,846 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:31,846 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716015721]
[2020-09-24 15:00:31,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:31,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:31,991 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:31,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:32,037 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 15:00:32,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:32,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 15:00:32,115 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716015721]
[2020-09-24 15:00:32,115 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 15:00:32,116 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 15:00:32,116 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783348956]
[2020-09-24 15:00:32,118 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 15:00:32,119 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:32,119 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 15:00:32,119 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-24 15:00:32,119 INFO  L87              Difference]: Start difference. First operand 746 states and 914 transitions. Second operand 8 states.
[2020-09-24 15:00:34,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:34,672 INFO  L93              Difference]: Finished difference Result 1887 states and 2410 transitions.
[2020-09-24 15:00:34,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 15:00:34,673 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 133
[2020-09-24 15:00:34,675 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:34,688 INFO  L225             Difference]: With dead ends: 1887
[2020-09-24 15:00:34,688 INFO  L226             Difference]: Without dead ends: 1165
[2020-09-24 15:00:34,694 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2020-09-24 15:00:34,696 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1165 states.
[2020-09-24 15:00:34,793 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1038.
[2020-09-24 15:00:34,794 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1038 states.
[2020-09-24 15:00:34,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1317 transitions.
[2020-09-24 15:00:34,801 INFO  L78                 Accepts]: Start accepts. Automaton has 1038 states and 1317 transitions. Word has length 133
[2020-09-24 15:00:34,801 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:34,801 INFO  L479      AbstractCegarLoop]: Abstraction has 1038 states and 1317 transitions.
[2020-09-24 15:00:34,801 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 15:00:34,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 1038 states and 1317 transitions.
[2020-09-24 15:00:34,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2020-09-24 15:00:34,809 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:34,810 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-09-24 15:00:34,810 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 15:00:34,810 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:34,810 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:34,811 INFO  L82        PathProgramCache]: Analyzing trace with hash 1985645406, now seen corresponding path program 1 times
[2020-09-24 15:00:34,811 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:34,811 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990146660]
[2020-09-24 15:00:34,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:34,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:35,020 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:35,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:35,044 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 15:00:35,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:35,073 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 15:00:35,073 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990146660]
[2020-09-24 15:00:35,074 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 15:00:35,074 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-24 15:00:35,074 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809636106]
[2020-09-24 15:00:35,075 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 15:00:35,075 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:35,075 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 15:00:35,076 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 15:00:35,076 INFO  L87              Difference]: Start difference. First operand 1038 states and 1317 transitions. Second operand 5 states.
[2020-09-24 15:00:36,893 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:36,898 INFO  L93              Difference]: Finished difference Result 2682 states and 3511 transitions.
[2020-09-24 15:00:36,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-24 15:00:36,900 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 133
[2020-09-24 15:00:36,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:36,918 INFO  L225             Difference]: With dead ends: 2682
[2020-09-24 15:00:36,918 INFO  L226             Difference]: Without dead ends: 1668
[2020-09-24 15:00:36,923 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-24 15:00:36,926 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1668 states.
[2020-09-24 15:00:36,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1183.
[2020-09-24 15:00:36,974 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1183 states.
[2020-09-24 15:00:36,981 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1475 transitions.
[2020-09-24 15:00:36,982 INFO  L78                 Accepts]: Start accepts. Automaton has 1183 states and 1475 transitions. Word has length 133
[2020-09-24 15:00:36,983 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:36,984 INFO  L479      AbstractCegarLoop]: Abstraction has 1183 states and 1475 transitions.
[2020-09-24 15:00:36,984 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 15:00:36,984 INFO  L276                IsEmpty]: Start isEmpty. Operand 1183 states and 1475 transitions.
[2020-09-24 15:00:36,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2020-09-24 15:00:36,992 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:36,992 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 15:00:36,993 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 15:00:36,993 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:36,993 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:36,993 INFO  L82        PathProgramCache]: Analyzing trace with hash -1474286310, now seen corresponding path program 1 times
[2020-09-24 15:00:36,994 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:36,994 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368629763]
[2020-09-24 15:00:36,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:37,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:37,142 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:37,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:37,170 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 15:00:37,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:37,182 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2020-09-24 15:00:37,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:37,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-24 15:00:37,262 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368629763]
[2020-09-24 15:00:37,263 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 15:00:37,263 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-24 15:00:37,265 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612564542]
[2020-09-24 15:00:37,266 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 15:00:37,266 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:37,267 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 15:00:37,267 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-24 15:00:37,267 INFO  L87              Difference]: Start difference. First operand 1183 states and 1475 transitions. Second operand 7 states.
[2020-09-24 15:00:39,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:39,528 INFO  L93              Difference]: Finished difference Result 2756 states and 3559 transitions.
[2020-09-24 15:00:39,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 15:00:39,534 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 174
[2020-09-24 15:00:39,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:39,546 INFO  L225             Difference]: With dead ends: 2756
[2020-09-24 15:00:39,546 INFO  L226             Difference]: Without dead ends: 1597
[2020-09-24 15:00:39,552 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2020-09-24 15:00:39,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1597 states.
[2020-09-24 15:00:39,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1367.
[2020-09-24 15:00:39,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1367 states.
[2020-09-24 15:00:39,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions.
[2020-09-24 15:00:39,609 INFO  L78                 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 174
[2020-09-24 15:00:39,609 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:39,609 INFO  L479      AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions.
[2020-09-24 15:00:39,609 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 15:00:39,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions.
[2020-09-24 15:00:39,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-24 15:00:39,618 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:39,618 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 15:00:39,618 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 15:00:39,619 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:39,619 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:39,619 INFO  L82        PathProgramCache]: Analyzing trace with hash -1304892871, now seen corresponding path program 1 times
[2020-09-24 15:00:39,620 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:39,620 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573613363]
[2020-09-24 15:00:39,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:39,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:39,778 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:39,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:39,800 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 15:00:39,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:39,826 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2020-09-24 15:00:39,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:39,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 69 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-24 15:00:39,946 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573613363]
[2020-09-24 15:00:39,946 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 15:00:39,946 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-24 15:00:39,947 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455031559]
[2020-09-24 15:00:39,948 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 15:00:39,948 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:39,948 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 15:00:39,948 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-24 15:00:39,949 INFO  L87              Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 8 states.
[2020-09-24 15:00:42,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:42,797 INFO  L93              Difference]: Finished difference Result 3604 states and 4629 transitions.
[2020-09-24 15:00:42,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-24 15:00:42,798 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 181
[2020-09-24 15:00:42,798 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:42,815 INFO  L225             Difference]: With dead ends: 3604
[2020-09-24 15:00:42,815 INFO  L226             Difference]: Without dead ends: 2261
[2020-09-24 15:00:42,822 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272
[2020-09-24 15:00:42,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2261 states.
[2020-09-24 15:00:42,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 1994.
[2020-09-24 15:00:42,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1994 states.
[2020-09-24 15:00:42,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2461 transitions.
[2020-09-24 15:00:42,897 INFO  L78                 Accepts]: Start accepts. Automaton has 1994 states and 2461 transitions. Word has length 181
[2020-09-24 15:00:42,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:42,898 INFO  L479      AbstractCegarLoop]: Abstraction has 1994 states and 2461 transitions.
[2020-09-24 15:00:42,898 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 15:00:42,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 1994 states and 2461 transitions.
[2020-09-24 15:00:42,908 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 230
[2020-09-24 15:00:42,908 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:42,909 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 15:00:42,909 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 15:00:42,909 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:42,909 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:42,910 INFO  L82        PathProgramCache]: Analyzing trace with hash 1143104216, now seen corresponding path program 1 times
[2020-09-24 15:00:42,910 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:42,910 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442092612]
[2020-09-24 15:00:42,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:42,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:43,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 15:00:43,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:43,109 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 15:00:43,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:43,133 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2020-09-24 15:00:43,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:43,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2020-09-24 15:00:43,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 15:00:43,272 INFO  L134       CoverageAnalysis]: Checked inductivity of 136 backedges. 107 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2020-09-24 15:00:43,272 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442092612]
[2020-09-24 15:00:43,274 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 15:00:43,274 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-24 15:00:43,275 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941093776]
[2020-09-24 15:00:43,278 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 15:00:43,279 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 15:00:43,279 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 15:00:43,279 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-24 15:00:43,280 INFO  L87              Difference]: Start difference. First operand 1994 states and 2461 transitions. Second operand 8 states.
[2020-09-24 15:00:45,021 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62
[2020-09-24 15:00:45,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 15:00:45,918 INFO  L93              Difference]: Finished difference Result 4519 states and 5571 transitions.
[2020-09-24 15:00:45,921 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-24 15:00:45,921 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 229
[2020-09-24 15:00:45,921 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 15:00:45,935 INFO  L225             Difference]: With dead ends: 4519
[2020-09-24 15:00:45,935 INFO  L226             Difference]: Without dead ends: 2549
[2020-09-24 15:00:45,942 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 15:00:45,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2549 states.
[2020-09-24 15:00:46,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2450.
[2020-09-24 15:00:46,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2450 states.
[2020-09-24 15:00:46,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 2972 transitions.
[2020-09-24 15:00:46,018 INFO  L78                 Accepts]: Start accepts. Automaton has 2450 states and 2972 transitions. Word has length 229
[2020-09-24 15:00:46,019 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 15:00:46,019 INFO  L479      AbstractCegarLoop]: Abstraction has 2450 states and 2972 transitions.
[2020-09-24 15:00:46,019 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 15:00:46,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 2450 states and 2972 transitions.
[2020-09-24 15:00:46,029 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-09-24 15:00:46,029 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 15:00:46,030 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 15:00:46,030 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 15:00:46,030 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 15:00:46,030 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 15:00:46,031 INFO  L82        PathProgramCache]: Analyzing trace with hash 1820249468, now seen corresponding path program 1 times
[2020-09-24 15:00:46,031 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 15:00:46,031 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286767574]
[2020-09-24 15:00:46,031 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 15:00:46,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 15:00:46,119 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 15:00:46,119 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 15:00:46,128 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 15:00:46,189 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:00:46 BoogieIcfgContainer
[2020-09-24 15:00:46,189 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 15:00:46,192 INFO  L168              Benchmark]: Toolchain (without parser) took 20880.03 ms. Allocated memory was 148.9 MB in the beginning and 471.3 MB in the end (delta: 322.4 MB). Free memory was 102.4 MB in the beginning and 247.2 MB in the end (delta: -144.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,193 INFO  L168              Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,199 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 835.67 ms. Allocated memory was 148.9 MB in the beginning and 208.1 MB in the end (delta: 59.2 MB). Free memory was 101.7 MB in the beginning and 174.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,200 INFO  L168              Benchmark]: Boogie Preprocessor took 133.66 ms. Allocated memory is still 208.1 MB. Free memory was 174.2 MB in the beginning and 168.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,201 INFO  L168              Benchmark]: RCFGBuilder took 1645.65 ms. Allocated memory was 208.1 MB in the beginning and 236.5 MB in the end (delta: 28.3 MB). Free memory was 168.8 MB in the beginning and 155.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,202 INFO  L168              Benchmark]: TraceAbstraction took 18255.37 ms. Allocated memory was 236.5 MB in the beginning and 471.3 MB in the end (delta: 234.9 MB). Free memory was 154.0 MB in the beginning and 247.2 MB in the end (delta: -93.1 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB.
[2020-09-24 15:00:46,217 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.52 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 835.67 ms. Allocated memory was 148.9 MB in the beginning and 208.1 MB in the end (delta: 59.2 MB). Free memory was 101.7 MB in the beginning and 174.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 133.66 ms. Allocated memory is still 208.1 MB. Free memory was 174.2 MB in the beginning and 168.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1645.65 ms. Allocated memory was 208.1 MB in the beginning and 236.5 MB in the end (delta: 28.3 MB). Free memory was 168.8 MB in the beginning and 155.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18255.37 ms. Allocated memory was 236.5 MB in the beginning and 471.3 MB in the end (delta: 234.9 MB). Free memory was 154.0 MB in the beginning and 247.2 MB in the end (delta: -93.1 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 428]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L7]                int a= 1;
[L8]                int d= 4;
[L9]                int e= 5;
[L10]               int f= 6;
[L11]               int c= 3;
[L12]               int b= 2;
[L15]               int u = 21;
[L16]               int v = 22;
[L17]               int w = 23;
[L18]               int x = 24;
[L19]               int y = 25;
[L20]               int z = 26;
[L22]               int a17 = 1;
[L23]               int a7 = 0;
[L24]               int a20 = 1;
[L25]               int a8 = 15;
[L26]               int a12 = 8;
[L27]               int a16 = 5;
[L28]               int a21 = 1;
[L580]              int output = -1;
[L583]  COND TRUE   1
[L586]              int input;
[L587]              input = __VERIFIER_nondet_int()
[L588]  COND FALSE  !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6))
[L591]  CALL, EXPR  calculate_output(input)
[L31]   COND TRUE   (((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))
[L32]               a16 = 5
[L33]               a20 = 0
[L34]               return 24;
[L591]  RET, EXPR   calculate_output(input)
[L591]              output = calculate_output(input)
[L583]  COND TRUE   1
[L586]              int input;
[L587]              input = __VERIFIER_nondet_int()
[L588]  COND FALSE  !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6))
[L591]  CALL, EXPR  calculate_output(input)
[L31]   COND FALSE  !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8)))
[L35]   COND FALSE  !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13)))
[L43]   COND FALSE  !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8)))
[L49]   COND FALSE  !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8))))
[L54]   COND FALSE  !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)))
[L62]   COND FALSE  !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)))
[L65]   COND FALSE  !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1)))
[L72]   COND FALSE  !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))))
[L80]   COND FALSE  !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4)))
[L84]   COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8)))
[L92]   COND FALSE  !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1)))))
[L97]   COND FALSE  !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15)))
[L102]  COND FALSE  !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1)))
[L108]  COND FALSE  !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5))))
[L114]  COND FALSE  !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4))))
[L119]  COND FALSE  !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1)))
[L124]  COND FALSE  !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15)))))
[L129]  COND FALSE  !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1)))
[L136]  COND FALSE  !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1)))
[L140]  COND FALSE  !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1)))))))
[L144]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15)))
[L148]  COND FALSE  !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1))))
[L152]  COND FALSE  !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1)))
[L160]  COND FALSE  !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8)))))
[L165]  COND FALSE  !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13)))
[L173]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15)))
[L178]  COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8)))
[L186]  COND FALSE  !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5))))
[L189]  COND FALSE  !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1)))
[L194]  COND FALSE  !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15))))
[L197]  COND FALSE  !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6))))
[L203]  COND FALSE  !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1)))
[L208]  COND FALSE  !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8))))))
[L214]  COND FALSE  !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1))))))
[L218]  COND FALSE  !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1))))
[L223]  COND FALSE  !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))))
[L231]  COND FALSE  !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1))))
[L238]  COND FALSE  !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1))))))))))
[L245]  COND FALSE  !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1)))
[L250]  COND FALSE  !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6))))
[L256]  COND FALSE  !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1)))))
[L261]  COND FALSE  !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5)))
[L265]  COND TRUE   ((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))
[L266]              a17 = 0
[L267]              return 24;
[L591]  RET, EXPR   calculate_output(input)
[L591]              output = calculate_output(input)
[L583]  COND TRUE   1
[L586]              int input;
[L587]              input = __VERIFIER_nondet_int()
[L588]  COND FALSE  !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6))
[L591]  CALL, EXPR  calculate_output(input)
[L31]   COND FALSE  !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8)))
[L35]   COND FALSE  !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13)))
[L43]   COND FALSE  !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8)))
[L49]   COND FALSE  !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8))))
[L54]   COND FALSE  !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)))
[L62]   COND FALSE  !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)))
[L65]   COND FALSE  !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1)))
[L72]   COND FALSE  !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))))
[L80]   COND FALSE  !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4)))
[L84]   COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8)))
[L92]   COND FALSE  !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1)))))
[L97]   COND FALSE  !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15)))
[L102]  COND FALSE  !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1)))
[L108]  COND FALSE  !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5))))
[L114]  COND FALSE  !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4))))
[L119]  COND FALSE  !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1)))
[L124]  COND FALSE  !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15)))))
[L129]  COND FALSE  !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1)))
[L136]  COND FALSE  !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1)))
[L140]  COND FALSE  !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1)))))))
[L144]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15)))
[L148]  COND FALSE  !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1))))
[L152]  COND FALSE  !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1)))
[L160]  COND FALSE  !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8)))))
[L165]  COND FALSE  !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13)))
[L173]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15)))
[L178]  COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8)))
[L186]  COND FALSE  !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5))))
[L189]  COND FALSE  !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1)))
[L194]  COND FALSE  !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15))))
[L197]  COND FALSE  !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6))))
[L203]  COND FALSE  !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1)))
[L208]  COND FALSE  !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8))))))
[L214]  COND FALSE  !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1))))))
[L218]  COND FALSE  !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1))))
[L223]  COND FALSE  !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))))
[L231]  COND FALSE  !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1))))
[L238]  COND FALSE  !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1))))))))))
[L245]  COND FALSE  !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1)))
[L250]  COND FALSE  !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6))))
[L256]  COND FALSE  !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1)))))
[L261]  COND FALSE  !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5)))
[L265]  COND FALSE  !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15))))
[L268]  COND FALSE  !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)))
[L273]  COND FALSE  !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4)))))))))
[L278]  COND FALSE  !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8)))
[L286]  COND FALSE  !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1)))
[L292]  COND FALSE  !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1)))
[L299]  COND FALSE  !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15)))
[L306]  COND FALSE  !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15)))
[L312]  COND TRUE   ((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))
[L313]              a8 = 13
[L314]              a16 = 4
[L315]              return -1;
[L591]  RET, EXPR   calculate_output(input)
[L591]              output = calculate_output(input)
[L583]  COND TRUE   1
[L586]              int input;
[L587]              input = __VERIFIER_nondet_int()
[L588]  COND FALSE  !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6))
[L591]  CALL        calculate_output(input)
[L31]   COND FALSE  !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8)))
[L35]   COND FALSE  !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13)))
[L43]   COND FALSE  !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8)))
[L49]   COND FALSE  !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8))))
[L54]   COND FALSE  !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)))
[L62]   COND FALSE  !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)))
[L65]   COND FALSE  !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1)))
[L72]   COND FALSE  !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))))
[L80]   COND FALSE  !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4)))
[L84]   COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8)))
[L92]   COND FALSE  !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1)))))
[L97]   COND FALSE  !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15)))
[L102]  COND FALSE  !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1)))
[L108]  COND FALSE  !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5))))
[L114]  COND FALSE  !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4))))
[L119]  COND FALSE  !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1)))
[L124]  COND FALSE  !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15)))))
[L129]  COND FALSE  !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1)))
[L136]  COND FALSE  !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1)))
[L140]  COND FALSE  !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1)))))))
[L144]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15)))
[L148]  COND FALSE  !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1))))
[L152]  COND FALSE  !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1)))
[L160]  COND FALSE  !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8)))))
[L165]  COND FALSE  !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13)))
[L173]  COND FALSE  !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15)))
[L178]  COND FALSE  !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8)))
[L186]  COND FALSE  !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5))))
[L189]  COND FALSE  !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1)))
[L194]  COND FALSE  !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15))))
[L197]  COND FALSE  !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6))))
[L203]  COND FALSE  !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1)))
[L208]  COND FALSE  !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8))))))
[L214]  COND FALSE  !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1))))))
[L218]  COND FALSE  !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1))))
[L223]  COND FALSE  !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))))
[L231]  COND FALSE  !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1))))
[L238]  COND FALSE  !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1))))))))))
[L245]  COND FALSE  !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1)))
[L250]  COND FALSE  !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6))))
[L256]  COND FALSE  !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1)))))
[L261]  COND FALSE  !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5)))
[L265]  COND FALSE  !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15))))
[L268]  COND FALSE  !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)))
[L273]  COND FALSE  !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4)))))))))
[L278]  COND FALSE  !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8)))
[L286]  COND FALSE  !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1)))
[L292]  COND FALSE  !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1)))
[L299]  COND FALSE  !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15)))
[L306]  COND FALSE  !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15)))
[L312]  COND FALSE  !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5)))
[L316]  COND FALSE  !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15)))
[L318]  COND FALSE  !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15)))))
[L324]  COND FALSE  !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1)))
[L329]  COND FALSE  !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1))))
[L333]  COND FALSE  !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))))
[L337]  COND FALSE  !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1)))))
[L345]  COND FALSE  !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1)))))
[L353]  COND FALSE  !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8))))
[L355]  COND FALSE  !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5)))
[L361]  COND FALSE  !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1)))
[L363]  COND FALSE  !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1)))
[L365]  COND FALSE  !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5)))
[L372]  COND FALSE  !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4)))
[L377]  COND FALSE  !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5)))
[L382]  COND FALSE  !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13))))))))
[L391]  COND FALSE  !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)))
[L394]  COND FALSE  !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)))
[L397]  COND FALSE  !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1)))
[L400]  COND FALSE  !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1)))
[L403]  COND FALSE  !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)))
[L406]  COND FALSE  !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1)))
[L409]  COND FALSE  !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)))
[L412]  COND FALSE  !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)))
[L415]  COND FALSE  !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)))
[L418]  COND FALSE  !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)))
[L421]  COND FALSE  !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)))
[L424]  COND FALSE  !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)))
[L427]  COND TRUE   ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))
[L428]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 525 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2165 SDtfs, 8160 SDslu, 2618 SDs, 0 SdLazy, 7420 SolverSat, 986 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2450occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 1243 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1216 NumberOfCodeBlocks, 1216 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 956 ConstructedInterpolants, 0 QuantifiedInterpolants, 413975 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 276/289 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...