/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label22.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 22:06:56,627 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 22:06:56,630 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 22:06:56,643 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 22:06:56,643 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 22:06:56,644 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 22:06:56,646 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 22:06:56,647 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 22:06:56,649 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 22:06:56,650 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 22:06:56,651 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 22:06:56,652 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 22:06:56,652 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 22:06:56,653 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 22:06:56,654 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 22:06:56,656 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 22:06:56,656 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 22:06:56,657 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 22:06:56,659 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 22:06:56,661 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 22:06:56,662 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 22:06:56,664 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 22:06:56,665 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 22:06:56,665 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 22:06:56,668 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 22:06:56,668 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 22:06:56,669 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 22:06:56,670 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 22:06:56,670 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 22:06:56,671 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 22:06:56,671 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 22:06:56,672 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 22:06:56,672 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-07-20 22:06:56,674 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 22:06:56,674 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 22:06:56,675 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-20 22:06:56,675 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 22:06:56,677 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 22:06:56,678 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 22:06:56,693 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 22:06:56,693 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 22:06:56,694 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 22:06:56,695 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 22:06:56,695 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 22:06:56,695 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 22:06:56,695 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 22:06:56,695 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 22:06:56,695 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 22:06:56,696 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 22:06:56,696 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 22:06:56,696 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 22:06:56,696 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 22:06:56,696 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 22:06:56,697 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 22:06:56,697 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 22:06:56,697 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 22:06:56,697 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 22:06:56,697 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 22:06:56,698 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 22:06:56,698 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 22:06:56,698 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 22:06:56,698 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 22:06:56,699 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 22:06:56,699 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 22:06:56,699 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 22:06:56,699 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:06:56,699 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 22:06:56,700 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 22:06:56,700 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 -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 22:06:56,985 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 22:06:56,999 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 22:06:57,003 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 22:06:57,004 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 22:06:57,004 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 22:06:57,005 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label22.c
[2020-07-20 22:06:57,087 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6291e676/c5407b224c624b95886eb1f9b44eb0d9/FLAG114330872
[2020-07-20 22:06:57,679 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 22:06:57,682 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label22.c
[2020-07-20 22:06:57,704 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6291e676/c5407b224c624b95886eb1f9b44eb0d9/FLAG114330872
[2020-07-20 22:06:57,915 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6291e676/c5407b224c624b95886eb1f9b44eb0d9
[2020-07-20 22:06:57,924 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 22:06:57,927 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 22:06:57,929 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 22:06:57,929 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 22:06:57,932 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 22:06:57,934 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:06:57" (1/1) ...
[2020-07-20 22:06:57,937 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea389f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:57, skipping insertion in model container
[2020-07-20 22:06:57,937 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:06:57" (1/1) ...
[2020-07-20 22:06:57,945 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 22:06:58,017 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 22:06:58,517 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 22:06:58,522 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 22:06:58,659 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 22:06:58,675 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 22:06:58,676 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58 WrapperNode
[2020-07-20 22:06:58,676 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 22:06:58,677 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 22:06:58,677 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 22:06:58,677 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 22:06:58,689 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,690 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,708 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,708 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,748 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,765 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,771 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
[2020-07-20 22:06:58,780 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 22:06:58,781 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 22:06:58,781 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 22:06:58,781 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 22:06:58,782 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2020-07-20 22:06:58,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 22:06:58,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 22:06:58,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 22:06:58,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 22:06:58,858 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 22:06:58,859 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 22:06:58,859 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 22:06:58,859 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 22:06:58,859 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 22:06:58,859 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 22:06:58,860 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 22:07:00,178 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 22:07:00,179 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 22:07:00,188 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:00 BoogieIcfgContainer
[2020-07-20 22:07:00,188 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 22:07:00,190 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 22:07:00,191 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 22:07:00,194 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 22:07:00,194 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:06:57" (1/3) ...
[2020-07-20 22:07:00,195 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f99a478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:00, skipping insertion in model container
[2020-07-20 22:07:00,195 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:06:58" (2/3) ...
[2020-07-20 22:07:00,196 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f99a478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:00, skipping insertion in model container
[2020-07-20 22:07:00,196 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:00" (3/3) ...
[2020-07-20 22:07:00,200 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem10_label22.c
[2020-07-20 22:07:00,214 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 22:07:00,228 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 22:07:00,246 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 22:07:00,287 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 22:07:00,288 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 22:07:00,288 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 22:07:00,288 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 22:07:00,288 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 22:07:00,289 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 22:07:00,289 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 22:07:00,289 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 22:07:00,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states.
[2020-07-20 22:07:00,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-07-20 22:07:00,333 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 22:07:00,334 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]
[2020-07-20 22:07:00,335 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 22:07:00,341 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 22:07:00,342 INFO  L82        PathProgramCache]: Analyzing trace with hash 1257002150, now seen corresponding path program 1 times
[2020-07-20 22:07:00,351 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 22:07:00,352 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529246659]
[2020-07-20 22:07:00,352 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:00,487 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 22:07:00,488 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 22:07:00,491 INFO  L263         TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 22:07:00,498 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 22:07:00,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 22:07:00,562 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 22:07:00,563 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529246659]
[2020-07-20 22:07:00,564 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 22:07:00,564 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 22:07:00,565 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62777953]
[2020-07-20 22:07:00,570 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 22:07:00,571 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 22:07:00,586 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 22:07:00,587 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:00,589 INFO  L87              Difference]: Start difference. First operand 215 states. Second operand 3 states.
[2020-07-20 22:07:01,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 22:07:01,707 INFO  L93              Difference]: Finished difference Result 586 states and 1004 transitions.
[2020-07-20 22:07:01,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 22:07:01,712 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 43
[2020-07-20 22:07:01,713 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 22:07:01,746 INFO  L225             Difference]: With dead ends: 586
[2020-07-20 22:07:01,746 INFO  L226             Difference]: Without dead ends: 294
[2020-07-20 22:07:01,760 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:01,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2020-07-20 22:07:01,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294.
[2020-07-20 22:07:01,879 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 294 states.
[2020-07-20 22:07:01,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions.
[2020-07-20 22:07:01,884 INFO  L78                 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 43
[2020-07-20 22:07:01,884 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 22:07:01,885 INFO  L479      AbstractCegarLoop]: Abstraction has 294 states and 426 transitions.
[2020-07-20 22:07:01,885 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 22:07:01,885 INFO  L276                IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions.
[2020-07-20 22:07:01,892 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2020-07-20 22:07:01,892 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 22:07:01,893 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 22:07:02,107 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:02,108 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 22:07:02,109 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 22:07:02,109 INFO  L82        PathProgramCache]: Analyzing trace with hash 961573706, now seen corresponding path program 1 times
[2020-07-20 22:07:02,109 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 22:07:02,110 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537974703]
[2020-07-20 22:07:02,110 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:02,203 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 22:07:02,204 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 22:07:02,206 INFO  L263         TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 22:07:02,211 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 22:07:02,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 22:07:02,255 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 22:07:02,255 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537974703]
[2020-07-20 22:07:02,256 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 22:07:02,256 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 22:07:02,256 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465580618]
[2020-07-20 22:07:02,258 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 22:07:02,258 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 22:07:02,259 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 22:07:02,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:02,259 INFO  L87              Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states.
[2020-07-20 22:07:02,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 22:07:02,946 INFO  L93              Difference]: Finished difference Result 582 states and 854 transitions.
[2020-07-20 22:07:02,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 22:07:02,947 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 117
[2020-07-20 22:07:02,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 22:07:02,952 INFO  L225             Difference]: With dead ends: 582
[2020-07-20 22:07:02,952 INFO  L226             Difference]: Without dead ends: 580
[2020-07-20 22:07:02,953 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:02,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 580 states.
[2020-07-20 22:07:02,992 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437.
[2020-07-20 22:07:02,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 437 states.
[2020-07-20 22:07:02,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions.
[2020-07-20 22:07:02,995 INFO  L78                 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 117
[2020-07-20 22:07:02,996 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 22:07:02,996 INFO  L479      AbstractCegarLoop]: Abstraction has 437 states and 648 transitions.
[2020-07-20 22:07:02,996 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 22:07:02,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions.
[2020-07-20 22:07:02,999 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2020-07-20 22:07:02,999 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 22:07:02,999 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 22:07:03,214 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:03,215 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 22:07:03,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 22:07:03,216 INFO  L82        PathProgramCache]: Analyzing trace with hash -550888759, now seen corresponding path program 1 times
[2020-07-20 22:07:03,216 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 22:07:03,217 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100601977]
[2020-07-20 22:07:03,217 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:03,296 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 22:07:03,296 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 22:07:03,297 INFO  L263         TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 22:07:03,302 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 22:07:03,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 22:07:03,330 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 22:07:03,330 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100601977]
[2020-07-20 22:07:03,331 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 22:07:03,331 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 22:07:03,331 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497607971]
[2020-07-20 22:07:03,332 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 22:07:03,332 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 22:07:03,332 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 22:07:03,333 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:03,333 INFO  L87              Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states.
[2020-07-20 22:07:04,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 22:07:04,060 INFO  L93              Difference]: Finished difference Result 1297 states and 1958 transitions.
[2020-07-20 22:07:04,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 22:07:04,062 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 122
[2020-07-20 22:07:04,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 22:07:04,072 INFO  L225             Difference]: With dead ends: 1297
[2020-07-20 22:07:04,072 INFO  L226             Difference]: Without dead ends: 866
[2020-07-20 22:07:04,074 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:04,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 866 states.
[2020-07-20 22:07:04,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 723.
[2020-07-20 22:07:04,129 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 723 states.
[2020-07-20 22:07:04,133 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1058 transitions.
[2020-07-20 22:07:04,134 INFO  L78                 Accepts]: Start accepts. Automaton has 723 states and 1058 transitions. Word has length 122
[2020-07-20 22:07:04,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 22:07:04,135 INFO  L479      AbstractCegarLoop]: Abstraction has 723 states and 1058 transitions.
[2020-07-20 22:07:04,135 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 22:07:04,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 723 states and 1058 transitions.
[2020-07-20 22:07:04,145 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2020-07-20 22:07:04,145 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 22:07:04,146 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 22:07:04,346 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:04,347 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 22:07:04,347 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 22:07:04,348 INFO  L82        PathProgramCache]: Analyzing trace with hash -44989898, now seen corresponding path program 1 times
[2020-07-20 22:07:04,348 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 22:07:04,349 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037138568]
[2020-07-20 22:07:04,349 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:04,461 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 22:07:04,461 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 22:07:04,462 INFO  L263         TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 22:07:04,469 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 22:07:04,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 22:07:04,514 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 22:07:04,514 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037138568]
[2020-07-20 22:07:04,515 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 22:07:04,515 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 22:07:04,515 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267542781]
[2020-07-20 22:07:04,516 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 22:07:04,516 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 22:07:04,516 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 22:07:04,516 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:04,517 INFO  L87              Difference]: Start difference. First operand 723 states and 1058 transitions. Second operand 3 states.
[2020-07-20 22:07:05,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 22:07:05,262 INFO  L93              Difference]: Finished difference Result 1152 states and 1685 transitions.
[2020-07-20 22:07:05,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 22:07:05,263 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 155
[2020-07-20 22:07:05,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 22:07:05,264 INFO  L225             Difference]: With dead ends: 1152
[2020-07-20 22:07:05,264 INFO  L226             Difference]: Without dead ends: 0
[2020-07-20 22:07:05,269 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 22:07:05,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 22:07:05,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 22:07:05,270 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 22:07:05,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 22:07:05,271 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155
[2020-07-20 22:07:05,271 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 22:07:05,271 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 22:07:05,271 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 22:07:05,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 22:07:05,271 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 22:07:05,473 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 22:07:05,477 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 22:07:05,826 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 22:07:05,827 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  true
[2020-07-20 22:07:05,827 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 22:07:05,827 INFO  L268        CegarLoopResult]: For program point  L465(lines 465 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,827 INFO  L268        CegarLoopResult]: For program point  L201-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,827 INFO  L268        CegarLoopResult]: For program point  L168-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L135-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L102-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L69-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L36-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L499(lines 499 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L301(lines 301 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,828 INFO  L268        CegarLoopResult]: For program point  L202(line 202)  no Hoare annotation was computed.
[2020-07-20 22:07:05,829 INFO  L268        CegarLoopResult]: For program point  L169(line 169)  no Hoare annotation was computed.
[2020-07-20 22:07:05,829 INFO  L268        CegarLoopResult]: For program point  L136(line 136)  no Hoare annotation was computed.
[2020-07-20 22:07:05,829 INFO  L268        CegarLoopResult]: For program point  L103(line 103)  no Hoare annotation was computed.
[2020-07-20 22:07:05,829 INFO  L268        CegarLoopResult]: For program point  L70(line 70)  no Hoare annotation was computed.
[2020-07-20 22:07:05,830 INFO  L268        CegarLoopResult]: For program point  L37(line 37)  no Hoare annotation was computed.
[2020-07-20 22:07:05,830 INFO  L268        CegarLoopResult]: For program point  L335(lines 335 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,831 INFO  L268        CegarLoopResult]: For program point  L236(lines 236 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,831 INFO  L268        CegarLoopResult]: For program point  L534(lines 534 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,831 INFO  L268        CegarLoopResult]: For program point  L171-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,831 INFO  L268        CegarLoopResult]: For program point  L138-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L105-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L72-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L39-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L436(lines 436 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L403(lines 403 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L370(lines 370 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,832 INFO  L268        CegarLoopResult]: For program point  L271(lines 271 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L172(line 172)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L139(line 139)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L106(line 106)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L73(line 73)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L40(line 40)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L569(lines 569 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,833 INFO  L268        CegarLoopResult]: For program point  L239(lines 239 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,834 INFO  L268        CegarLoopResult]: For program point  L504(lines 504 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,834 INFO  L268        CegarLoopResult]: For program point  L471(lines 471 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,834 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 115)  no Hoare annotation was computed.
[2020-07-20 22:07:05,835 INFO  L268        CegarLoopResult]: For program point  L306(lines 306 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,835 INFO  L268        CegarLoopResult]: For program point  L174-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,836 INFO  L268        CegarLoopResult]: For program point  L141-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,837 INFO  L268        CegarLoopResult]: For program point  L108-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,837 INFO  L268        CegarLoopResult]: For program point  L75-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L42-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L340(lines 340 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L175(line 175)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L142(line 142)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L109(line 109)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L76(line 76)  no Hoare annotation was computed.
[2020-07-20 22:07:05,838 INFO  L268        CegarLoopResult]: For program point  L43(line 43)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L540(lines 540 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L408(lines 408 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L375(lines 375 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L210(lines 210 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L177-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,839 INFO  L268        CegarLoopResult]: For program point  L144-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L111-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L78-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L45-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L442(lines 442 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L277(lines 277 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L244(lines 244 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,840 INFO  L268        CegarLoopResult]: For program point  L178(line 178)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L145(line 145)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L112(line 112)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L79(line 79)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L46(line 46)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L509(lines 509 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L476(lines 476 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,841 INFO  L268        CegarLoopResult]: For program point  L378(lines 378 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L345(lines 345 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L312(lines 312 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L180-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L147-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L114-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L81-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,842 INFO  L268        CegarLoopResult]: For program point  L48-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L181(line 181)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L148(line 148)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L115(line 115)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L82(line 82)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L49(line 49)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L545(lines 545 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,843 INFO  L268        CegarLoopResult]: For program point  L215(lines 215 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L414(lines 414 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L249(lines 249 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L183-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L150-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L117-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L84-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  L51-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,844 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L514(lines 514 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L481(lines 481 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L448(lines 448 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L283(lines 283 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L184(line 184)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L151(line 151)  no Hoare annotation was computed.
[2020-07-20 22:07:05,845 INFO  L268        CegarLoopResult]: For program point  L118(line 118)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L85(line 85)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L52(line 52)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L548(lines 548 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L383(lines 383 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L317(lines 317 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L351(lines 351 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,846 INFO  L268        CegarLoopResult]: For program point  L186-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L153-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L120-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L87-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L21(lines 21 23)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L54-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L21-2(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,847 INFO  L268        CegarLoopResult]: For program point  L517(lines 517 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L220(lines 220 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L187(line 187)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L154(line 154)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L121(line 121)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L88(line 88)  no Hoare annotation was computed.
[2020-07-20 22:07:05,848 INFO  L268        CegarLoopResult]: For program point  L55(line 55)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L22(line 22)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L419(lines 419 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L320(lines 320 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L254(lines 254 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L354(lines 354 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L189-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L156-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L123-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L90-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,849 INFO  L268        CegarLoopResult]: For program point  L57-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L24-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L487(lines 487 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L454(lines 454 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L388(lines 388 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L190(line 190)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L157(line 157)  no Hoare annotation was computed.
[2020-07-20 22:07:05,850 INFO  L268        CegarLoopResult]: For program point  L124(line 124)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L268        CegarLoopResult]: For program point  L91(line 91)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L268        CegarLoopResult]: For program point  L58(line 58)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L268        CegarLoopResult]: For program point  L25(line 25)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L268        CegarLoopResult]: For program point  L554(lines 554 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L268        CegarLoopResult]: For program point  L323(lines 323 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,851 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 20 574)  the Hoare annotation is:  (and (or (not (<= 1 |old(~a10~0)|)) (<= 1 ~a10~0)) (or (<= 9 ~a19~0) (not (<= 9 |old(~a19~0)|))) (or (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23)) (or (<= 8 ~a19~0) (not (<= 8 |old(~a19~0)|))))
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L357(lines 357 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L291(lines 291 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L225(lines 225 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L192-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L159-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L126-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,852 INFO  L268        CegarLoopResult]: For program point  L93-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L60-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L27-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L523(lines 523 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L193(line 193)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L160(line 160)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L127(line 127)  no Hoare annotation was computed.
[2020-07-20 22:07:05,853 INFO  L268        CegarLoopResult]: For program point  L94(line 94)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L61(line 61)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L28(line 28)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L557(lines 557 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L425(lines 425 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L326(lines 326 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L260(lines 260 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L393(lines 393 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,854 INFO  L268        CegarLoopResult]: For program point  L360(lines 360 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L195-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L162-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L129-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L96-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L63-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L30-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,855 INFO  L268        CegarLoopResult]: For program point  L526(lines 526 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L493(lines 493 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L460(lines 460 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L196(line 196)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L163(line 163)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L130(line 130)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L97(line 97)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L64(line 64)  no Hoare annotation was computed.
[2020-07-20 22:07:05,856 INFO  L268        CegarLoopResult]: For program point  L31(line 31)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L329(lines 329 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L296(lines 296 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L231(lines 231 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L198-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L165-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L132-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,857 INFO  L268        CegarLoopResult]: For program point  L99-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L66-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L33-1(lines 20 574)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L529(lines 529 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L430(lines 430 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L265(lines 265 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,858 INFO  L268        CegarLoopResult]: For program point  L199(line 199)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L166(line 166)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L133(line 133)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L100(line 100)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L67(line 67)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L34(line 34)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L563(lines 563 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,859 INFO  L268        CegarLoopResult]: For program point  L398(lines 398 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,860 INFO  L268        CegarLoopResult]: For program point  L365(lines 365 572)  no Hoare annotation was computed.
[2020-07-20 22:07:05,860 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-07-20 22:07:05,860 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= 9 ~a19~0) (<= ~a1~0 23))
[2020-07-20 22:07:05,860 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-07-20 22:07:05,860 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-07-20 22:07:05,860 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 576 592)  the Hoare annotation is:  (or (not (<= |old(~a1~0)| 23)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a1~0 23)))
[2020-07-20 22:07:05,860 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 576 592)  no Hoare annotation was computed.
[2020-07-20 22:07:05,861 INFO  L264        CegarLoopResult]: At program point  L590(line 590)  the Hoare annotation is:  (or (<= 8 ~a19~0) (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) (<= 1 ~a10~0) (not (<= 9 |old(~a19~0)|)))
[2020-07-20 22:07:05,861 INFO  L268        CegarLoopResult]: For program point  L590-1(line 590)  no Hoare annotation was computed.
[2020-07-20 22:07:05,861 INFO  L268        CegarLoopResult]: For program point  L587(line 587)  no Hoare annotation was computed.
[2020-07-20 22:07:05,861 INFO  L264        CegarLoopResult]: At program point  L582-2(lines 582 591)  the Hoare annotation is:  (or (<= 8 ~a19~0) (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) (<= 1 ~a10~0) (not (<= 9 |old(~a19~0)|)))
[2020-07-20 22:07:05,861 INFO  L268        CegarLoopResult]: For program point  L582-3(lines 576 592)  no Hoare annotation was computed.
[2020-07-20 22:07:05,882 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:07:05 BoogieIcfgContainer
[2020-07-20 22:07:05,882 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 22:07:05,885 INFO  L168              Benchmark]: Toolchain (without parser) took 7958.47 ms. Allocated memory was 135.3 MB in the beginning and 310.4 MB in the end (delta: 175.1 MB). Free memory was 98.8 MB in the beginning and 230.6 MB in the end (delta: -131.7 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,886 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,887 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 747.84 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 167.6 MB in the end (delta: -69.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,888 INFO  L168              Benchmark]: Boogie Preprocessor took 103.84 ms. Allocated memory is still 201.9 MB. Free memory was 167.6 MB in the beginning and 163.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,889 INFO  L168              Benchmark]: RCFGBuilder took 1408.07 ms. Allocated memory was 201.9 MB in the beginning and 228.6 MB in the end (delta: 26.7 MB). Free memory was 162.3 MB in the beginning and 178.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,890 INFO  L168              Benchmark]: TraceAbstraction took 5692.00 ms. Allocated memory was 228.6 MB in the beginning and 310.4 MB in the end (delta: 81.8 MB). Free memory was 178.5 MB in the beginning and 230.6 MB in the end (delta: -52.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB.
[2020-07-20 22:07:05,894 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 747.84 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 167.6 MB in the end (delta: -69.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.84 ms. Allocated memory is still 201.9 MB. Free memory was 167.6 MB in the beginning and 163.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1408.07 ms. Allocated memory was 201.9 MB in the beginning and 228.6 MB in the end (delta: 26.7 MB). Free memory was 162.3 MB in the beginning and 178.5 MB in the end (delta: -16.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 5692.00 ms. Allocated memory was 228.6 MB in the beginning and 310.4 MB in the end (delta: 81.8 MB). Free memory was 178.5 MB in the beginning and 230.6 MB in the end (delta: -52.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 115]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 582]: Loop Invariant
    Derived loop invariant: (((8 <= a19 || !(\old(a1) <= 23)) || a1 <= 23) || 1 <= a10) || !(9 <= \old(a19))
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 549 SDslu, 47 SDs, 0 SdLazy, 1532 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 286 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 18 PreInvPairs, 34 NumberOfFragments, 94 HoareAnnotationTreeSize, 18 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 157 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 433 ConstructedInterpolants, 0 QuantifiedInterpolants, 87435 SizeOfPredicates, 9 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 108/108 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 correct!
Received shutdown request...