/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c


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


This is Ultimate 0.1.25-177f698
[2020-08-21 16:35:11,194 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-21 16:35:11,197 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-21 16:35:11,226 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-21 16:35:11,226 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-21 16:35:11,235 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-21 16:35:11,236 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-21 16:35:11,240 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-21 16:35:11,243 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-21 16:35:11,246 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-21 16:35:11,247 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-08-21 16:35:11,248 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-21 16:35:11,249 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-21 16:35:11,251 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-21 16:35:11,254 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-21 16:35:11,255 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-21 16:35:11,257 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-21 16:35:11,258 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-21 16:35:11,261 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-21 16:35:11,269 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-21 16:35:11,271 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-21 16:35:11,272 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-21 16:35:11,274 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-21 16:35:11,274 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-21 16:35:11,286 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-21 16:35:11,286 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-21 16:35:11,286 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-21 16:35:11,289 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-21 16:35:11,289 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-21 16:35:11,292 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-21 16:35:11,292 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-21 16:35:11,293 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-21 16:35:11,294 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-21 16:35:11,294 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-21 16:35:11,295 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-21 16:35:11,295 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-21 16:35:11,296 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-21 16:35:11,297 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-21 16:35:11,297 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-21 16:35:11,300 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-21 16:35:11,301 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
[2020-08-21 16:35:11,348 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-21 16:35:11,349 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-21 16:35:11,350 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-21 16:35:11,350 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-08-21 16:35:11,350 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-08-21 16:35:11,350 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-21 16:35:11,351 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-21 16:35:11,352 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-21 16:35:11,352 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-21 16:35:11,352 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-21 16:35:11,353 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-21 16:35:11,353 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-21 16:35:11,353 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-21 16:35:11,354 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-21 16:35:11,354 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-21 16:35:11,354 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-21 16:35:11,355 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-21 16:35:11,355 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-21 16:35:11,355 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-08-21 16:35:11,355 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-21 16:35:11,355 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-21 16:35:11,355 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-21 16:35:11,356 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-21 16:35:11,356 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-08-21 16:35:11,356 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-21 16:35:11,356 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-08-21 16:35:11,356 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-21 16:35:11,357 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-21 16:35:11,357 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-08-21 16:35:11,357 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.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-08-21 16:35:11,660 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-21 16:35:11,673 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-21 16:35:11,676 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-21 16:35:11,678 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-21 16:35:11,678 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-21 16:35:11,679 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31.c
[2020-08-21 16:35:11,754 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0b25eacb/f4a5cfe1948e4dc79bca67f5ac12a7bc/FLAG553ca93c7
[2020-08-21 16:35:12,335 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-21 16:35:12,336 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label31.c
[2020-08-21 16:35:12,350 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0b25eacb/f4a5cfe1948e4dc79bca67f5ac12a7bc/FLAG553ca93c7
[2020-08-21 16:35:12,617 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0b25eacb/f4a5cfe1948e4dc79bca67f5ac12a7bc
[2020-08-21 16:35:12,626 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-21 16:35:12,628 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-21 16:35:12,629 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-21 16:35:12,629 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-21 16:35:12,633 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-21 16:35:12,634 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:35:12" (1/1) ...
[2020-08-21 16:35:12,637 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a48022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:12, skipping insertion in model container
[2020-08-21 16:35:12,637 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:35:12" (1/1) ...
[2020-08-21 16:35:12,645 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-21 16:35:12,696 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-21 16:35:13,275 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-21 16:35:13,282 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-21 16:35:13,403 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-21 16:35:13,419 INFO  L208         MainTranslator]: Completed translation
[2020-08-21 16:35:13,419 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13 WrapperNode
[2020-08-21 16:35:13,420 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-21 16:35:13,420 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-21 16:35:13,421 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-21 16:35:13,421 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-21 16:35:13,433 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,433 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,450 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,451 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,490 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,507 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,512 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (1/1) ...
[2020-08-21 16:35:13,519 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-21 16:35:13,520 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-21 16:35:13,520 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-21 16:35:13,520 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-21 16:35:13,521 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (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
[2020-08-21 16:35:13,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-21 16:35:13,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-21 16:35:13,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-08-21 16:35:13,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-21 16:35:13,620 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-08-21 16:35:13,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-21 16:35:13,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-21 16:35:13,621 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-08-21 16:35:13,621 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-21 16:35:13,622 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-21 16:35:13,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-21 16:35:14,897 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-21 16:35:14,897 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-08-21 16:35:14,904 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:35:14 BoogieIcfgContainer
[2020-08-21 16:35:14,905 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-21 16:35:14,907 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-21 16:35:14,907 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-21 16:35:14,911 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-21 16:35:14,911 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:35:12" (1/3) ...
[2020-08-21 16:35:14,912 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c04a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:35:14, skipping insertion in model container
[2020-08-21 16:35:14,912 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:35:13" (2/3) ...
[2020-08-21 16:35:14,913 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c04a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:35:14, skipping insertion in model container
[2020-08-21 16:35:14,913 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:35:14" (3/3) ...
[2020-08-21 16:35:14,915 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem02_label31.c
[2020-08-21 16:35:14,928 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-21 16:35:14,937 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-21 16:35:14,952 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-21 16:35:14,980 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-21 16:35:14,980 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-21 16:35:14,980 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-21 16:35:14,980 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-21 16:35:14,980 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-21 16:35:14,981 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-21 16:35:14,981 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-21 16:35:14,981 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-21 16:35:15,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states.
[2020-08-21 16:35:15,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2020-08-21 16:35:15,021 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 16:35:15,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 16:35:15,023 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 16:35:15,029 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 16:35:15,030 INFO  L82        PathProgramCache]: Analyzing trace with hash 1634450302, now seen corresponding path program 1 times
[2020-08-21 16:35:15,039 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 16:35:15,040 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793355088]
[2020-08-21 16:35:15,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 16:35:15,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:15,610 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 16:35:15,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:15,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 16:35:15,668 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793355088]
[2020-08-21 16:35:15,670 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 16:35:15,670 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-21 16:35:15,671 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13596671]
[2020-08-21 16:35:15,678 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-08-21 16:35:15,678 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 16:35:15,693 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-08-21 16:35:15,694 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-08-21 16:35:15,697 INFO  L87              Difference]: Start difference. First operand 236 states. Second operand 5 states.
[2020-08-21 16:35:17,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 16:35:17,364 INFO  L93              Difference]: Finished difference Result 627 states and 1073 transitions.
[2020-08-21 16:35:17,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-21 16:35:17,366 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 122
[2020-08-21 16:35:17,367 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 16:35:17,397 INFO  L225             Difference]: With dead ends: 627
[2020-08-21 16:35:17,397 INFO  L226             Difference]: Without dead ends: 327
[2020-08-21 16:35:17,410 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-08-21 16:35:17,428 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 327 states.
[2020-08-21 16:35:17,483 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319.
[2020-08-21 16:35:17,485 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 319 states.
[2020-08-21 16:35:17,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions.
[2020-08-21 16:35:17,489 INFO  L78                 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 122
[2020-08-21 16:35:17,490 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 16:35:17,490 INFO  L479      AbstractCegarLoop]: Abstraction has 319 states and 480 transitions.
[2020-08-21 16:35:17,490 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-08-21 16:35:17,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions.
[2020-08-21 16:35:17,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2020-08-21 16:35:17,496 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 16:35:17,497 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, 1, 1, 1, 1]
[2020-08-21 16:35:17,497 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-21 16:35:17,497 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 16:35:17,498 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 16:35:17,498 INFO  L82        PathProgramCache]: Analyzing trace with hash 200669667, now seen corresponding path program 1 times
[2020-08-21 16:35:17,498 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 16:35:17,499 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536363966]
[2020-08-21 16:35:17,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 16:35:17,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:17,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 16:35:17,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:17,715 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-08-21 16:35:17,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:17,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 16:35:17,756 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536363966]
[2020-08-21 16:35:17,757 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 16:35:17,757 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-08-21 16:35:17,757 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878882994]
[2020-08-21 16:35:17,759 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-21 16:35:17,759 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 16:35:17,759 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-21 16:35:17,760 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-08-21 16:35:17,760 INFO  L87              Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states.
[2020-08-21 16:35:18,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 16:35:18,651 INFO  L93              Difference]: Finished difference Result 635 states and 968 transitions.
[2020-08-21 16:35:18,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-08-21 16:35:18,652 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 137
[2020-08-21 16:35:18,652 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 16:35:18,655 INFO  L225             Difference]: With dead ends: 635
[2020-08-21 16:35:18,656 INFO  L226             Difference]: Without dead ends: 322
[2020-08-21 16:35:18,658 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2020-08-21 16:35:18,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 322 states.
[2020-08-21 16:35:18,683 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310.
[2020-08-21 16:35:18,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 310 states.
[2020-08-21 16:35:18,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions.
[2020-08-21 16:35:18,685 INFO  L78                 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 137
[2020-08-21 16:35:18,685 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 16:35:18,686 INFO  L479      AbstractCegarLoop]: Abstraction has 310 states and 437 transitions.
[2020-08-21 16:35:18,686 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-21 16:35:18,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions.
[2020-08-21 16:35:18,692 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2020-08-21 16:35:18,692 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 16:35:18,692 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 16:35:18,693 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-21 16:35:18,696 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 16:35:18,696 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 16:35:18,697 INFO  L82        PathProgramCache]: Analyzing trace with hash 683210902, now seen corresponding path program 1 times
[2020-08-21 16:35:18,697 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 16:35:18,697 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461420073]
[2020-08-21 16:35:18,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 16:35:18,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:18,850 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 16:35:18,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:18,898 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-08-21 16:35:18,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:19,021 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 16:35:19,021 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461420073]
[2020-08-21 16:35:19,022 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 16:35:19,022 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-08-21 16:35:19,024 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938937515]
[2020-08-21 16:35:19,027 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-21 16:35:19,028 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 16:35:19,028 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-21 16:35:19,029 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-08-21 16:35:19,029 INFO  L87              Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states.
[2020-08-21 16:35:21,248 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 16:35:21,248 INFO  L93              Difference]: Finished difference Result 1090 states and 1576 transitions.
[2020-08-21 16:35:21,255 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-08-21 16:35:21,255 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 144
[2020-08-21 16:35:21,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 16:35:21,260 INFO  L225             Difference]: With dead ends: 1090
[2020-08-21 16:35:21,260 INFO  L226             Difference]: Without dead ends: 786
[2020-08-21 16:35:21,262 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2020-08-21 16:35:21,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 786 states.
[2020-08-21 16:35:21,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 614.
[2020-08-21 16:35:21,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 614 states.
[2020-08-21 16:35:21,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 801 transitions.
[2020-08-21 16:35:21,315 INFO  L78                 Accepts]: Start accepts. Automaton has 614 states and 801 transitions. Word has length 144
[2020-08-21 16:35:21,315 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 16:35:21,316 INFO  L479      AbstractCegarLoop]: Abstraction has 614 states and 801 transitions.
[2020-08-21 16:35:21,316 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-21 16:35:21,316 INFO  L276                IsEmpty]: Start isEmpty. Operand 614 states and 801 transitions.
[2020-08-21 16:35:21,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-08-21 16:35:21,319 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-21 16:35:21,319 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-21 16:35:21,320 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-21 16:35:21,320 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 16:35:21,320 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 16:35:21,320 INFO  L82        PathProgramCache]: Analyzing trace with hash 1328519679, now seen corresponding path program 1 times
[2020-08-21 16:35:21,321 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 16:35:21,321 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354081084]
[2020-08-21 16:35:21,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 16:35:21,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:21,477 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 16:35:21,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:21,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-08-21 16:35:21,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:21,511 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2020-08-21 16:35:21,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 16:35:21,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-08-21 16:35:21,612 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354081084]
[2020-08-21 16:35:21,612 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-08-21 16:35:21,613 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-08-21 16:35:21,614 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529840699]
[2020-08-21 16:35:21,615 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-21 16:35:21,616 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 16:35:21,616 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-21 16:35:21,617 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-08-21 16:35:21,617 INFO  L87              Difference]: Start difference. First operand 614 states and 801 transitions. Second operand 8 states.
[2020-08-21 16:35:23,401 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 16:35:23,402 INFO  L93              Difference]: Finished difference Result 1674 states and 2264 transitions.
[2020-08-21 16:35:23,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-08-21 16:35:23,402 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 157
[2020-08-21 16:35:23,403 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 16:35:23,404 INFO  L225             Difference]: With dead ends: 1674
[2020-08-21 16:35:23,404 INFO  L226             Difference]: Without dead ends: 0
[2020-08-21 16:35:23,407 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2020-08-21 16:35:23,408 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-08-21 16:35:23,408 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-08-21 16:35:23,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-08-21 16:35:23,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-08-21 16:35:23,409 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157
[2020-08-21 16:35:23,409 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-21 16:35:23,409 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-08-21 16:35:23,409 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-21 16:35:23,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-08-21 16:35:23,409 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-08-21 16:35:23,410 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-21 16:35:23,412 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-08-21 16:35:23,732 WARN  L193               SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 30
[2020-08-21 16:35:23,849 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-08-21 16:35:23,850 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|))
[2020-08-21 16:35:23,850 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-08-21 16:35:23,850 INFO  L268        CegarLoopResult]: For program point  L564-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L531-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L498-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L465-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L432-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L234(lines 234 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,851 INFO  L268        CegarLoopResult]: For program point  L69(lines 69 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L565(line 565)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L532(line 532)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L499(line 499)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L466(line 466)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L433(line 433)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L202(lines 202 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,852 INFO  L268        CegarLoopResult]: For program point  L169(lines 169 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L368(lines 368 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L203(lines 203 210)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L203-2(lines 203 210)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L38(lines 38 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L567-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L534-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,853 INFO  L268        CegarLoopResult]: For program point  L501-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L468-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L402(lines 402 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L435-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L237(lines 237 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L568(line 568)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L535(line 535)  no Hoare annotation was computed.
[2020-08-21 16:35:23,854 INFO  L268        CegarLoopResult]: For program point  L502(line 502)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L469(line 469)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L436(line 436)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L337(lines 337 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L238(lines 238 246)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L238-2(lines 238 246)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L139(lines 139 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,855 INFO  L268        CegarLoopResult]: For program point  L106(lines 106 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L404(lines 404 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L338(lines 338 347)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L338-2(lines 338 347)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L74(lines 74 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L570-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,856 INFO  L268        CegarLoopResult]: For program point  L537-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  L504-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  L471-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  L438-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 520)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  L75(lines 75 80)  no Hoare annotation was computed.
[2020-08-21 16:35:23,857 INFO  L268        CegarLoopResult]: For program point  L42(lines 42 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L75-2(lines 75 80)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L571(line 571)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L538(line 538)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L505(line 505)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L472(line 472)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L439(line 439)  no Hoare annotation was computed.
[2020-08-21 16:35:23,858 INFO  L268        CegarLoopResult]: For program point  L175(lines 175 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L407(lines 407 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L143(lines 143 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L573-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L540-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L507-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L474-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,859 INFO  L268        CegarLoopResult]: For program point  L441-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L375(lines 375 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L309(lines 309 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L276(lines 276 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L574(line 574)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L541(line 541)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L508(line 508)  no Hoare annotation was computed.
[2020-08-21 16:35:23,860 INFO  L268        CegarLoopResult]: For program point  L475(line 475)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L442(line 442)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L409(lines 409 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L212(lines 212 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L179(lines 179 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L113(lines 113 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,861 INFO  L268        CegarLoopResult]: For program point  L47(lines 47 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L576-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L543-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L510-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L477-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L444-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L378(lines 378 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,862 INFO  L268        CegarLoopResult]: For program point  L577(line 577)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L544(line 544)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L511(line 511)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L478(line 478)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L445(line 445)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L280(lines 280 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L148(lines 148 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L82(lines 82 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,863 INFO  L268        CegarLoopResult]: For program point  L380(lines 380 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L314(lines 314 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L248(lines 248 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L215(lines 215 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L83(lines 83 89)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L50(lines 50 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L83-2(lines 83 89)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L579-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,864 INFO  L268        CegarLoopResult]: For program point  L546-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L513-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L480-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L414(lines 414 416)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L447-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L381(lines 381 387)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L414-2(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L315(lines 315 326)  no Hoare annotation was computed.
[2020-08-21 16:35:23,865 INFO  L268        CegarLoopResult]: For program point  L381-2(lines 381 387)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L315-2(lines 315 326)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L580(line 580)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L547(line 547)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L514(line 514)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L481(line 481)  no Hoare annotation was computed.
[2020-08-21 16:35:23,866 INFO  L268        CegarLoopResult]: For program point  L448(line 448)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L415(line 415)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L349(lines 349 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L283(lines 283 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L218(lines 218 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L185(lines 185 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L119(lines 119 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L582-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,867 INFO  L268        CegarLoopResult]: For program point  L549-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L516-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L483-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L450-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L417-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L54(lines 54 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L583(line 583)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L550(line 550)  no Hoare annotation was computed.
[2020-08-21 16:35:23,868 INFO  L268        CegarLoopResult]: For program point  L517(line 517)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L484(line 484)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L451(line 451)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L418(line 418)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L253(lines 253 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L187(lines 187 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L154(lines 154 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,869 INFO  L268        CegarLoopResult]: For program point  L585-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L552-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L519-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L486-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L453-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L420-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L354(lines 354 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L189(lines 189 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,870 INFO  L268        CegarLoopResult]: For program point  L123(lines 123 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L586(line 586)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L553(line 553)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L520(line 520)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L487(line 487)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L454(line 454)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L421(line 421)  no Hoare annotation was computed.
[2020-08-21 16:35:23,871 INFO  L268        CegarLoopResult]: For program point  L223(lines 223 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L91(lines 91 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L389(lines 389 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L191(lines 191 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L59(lines 59 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L588-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L555-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,872 INFO  L268        CegarLoopResult]: For program point  L522-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,873 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 29 598)  the Hoare annotation is:  (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (= ~a28~0 |old(~a28~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (and (or .cse0 (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse2 .cse3 (<= 8 ~a17~0) (<= ~a17~0 8) .cse4)) (or (= 8 |old(~a28~0)|) .cse0 (and .cse1 (= ~a17~0 |old(~a17~0)|) .cse2 .cse3 .cse4) (= 11 |old(~a28~0)|))))
[2020-08-21 16:35:23,873 INFO  L268        CegarLoopResult]: For program point  L489-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,873 INFO  L268        CegarLoopResult]: For program point  L456-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,873 INFO  L268        CegarLoopResult]: For program point  L423-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,873 INFO  L268        CegarLoopResult]: For program point  L291(lines 291 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L225(lines 225 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L159(lines 159 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L589(line 589)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L556(line 556)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L523(line 523)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L490(line 490)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L457(line 457)  no Hoare annotation was computed.
[2020-08-21 16:35:23,874 INFO  L268        CegarLoopResult]: For program point  L424(line 424)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L259(lines 259 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L293(lines 293 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L194(lines 194 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L95(lines 95 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L591-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L558-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L525-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,875 INFO  L268        CegarLoopResult]: For program point  L492-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L459-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L426-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L261(lines 261 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L30(lines 30 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L592(line 592)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L559(line 559)  no Hoare annotation was computed.
[2020-08-21 16:35:23,876 INFO  L268        CegarLoopResult]: For program point  L526(line 526)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L493(line 493)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L460(line 460)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L427(line 427)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L394(lines 394 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L361(lines 361 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L328(lines 328 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,877 INFO  L268        CegarLoopResult]: For program point  L262(lines 262 274)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L262-2(lines 262 274)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L130(lines 130 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L65(lines 65 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L594-1(lines 594 596)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L561-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L528-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,878 INFO  L268        CegarLoopResult]: For program point  L495-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L462-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L429-1(lines 29 598)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L297(lines 297 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L198(lines 198 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L165(lines 165 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L99(lines 99 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L595(line 595)  no Hoare annotation was computed.
[2020-08-21 16:35:23,879 INFO  L268        CegarLoopResult]: For program point  L562(line 562)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L529(line 529)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L496(line 496)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L463(line 463)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L430(line 430)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L331(lines 331 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L298(lines 298 307)  no Hoare annotation was computed.
[2020-08-21 16:35:23,880 INFO  L268        CegarLoopResult]: For program point  L232(lines 232 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L298-2(lines 298 307)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L398(lines 398 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L332(lines 332 335)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L332-2(lines 332 335)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L134(lines 134 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  L35(lines 35 413)  no Hoare annotation was computed.
[2020-08-21 16:35:23,881 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-08-21 16:35:23,882 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8))
[2020-08-21 16:35:23,882 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-08-21 16:35:23,882 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-08-21 16:35:23,882 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 600 617)  the Hoare annotation is:  (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|)))
[2020-08-21 16:35:23,882 INFO  L264        CegarLoopResult]: At program point  L606-2(lines 606 616)  the Hoare annotation is:  (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (and (not (= ~a28~0 8)) .cse0 (not (= ~a28~0 11)))))
[2020-08-21 16:35:23,882 INFO  L268        CegarLoopResult]: For program point  L606-3(lines 600 617)  no Hoare annotation was computed.
[2020-08-21 16:35:23,883 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 600 617)  no Hoare annotation was computed.
[2020-08-21 16:35:23,883 INFO  L264        CegarLoopResult]: At program point  L614(line 614)  the Hoare annotation is:  (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (and (not (= ~a28~0 8)) .cse0 (not (= ~a28~0 11)))))
[2020-08-21 16:35:23,883 INFO  L268        CegarLoopResult]: For program point  L614-1(line 614)  no Hoare annotation was computed.
[2020-08-21 16:35:23,883 INFO  L268        CegarLoopResult]: For program point  L611(line 611)  no Hoare annotation was computed.
[2020-08-21 16:35:23,905 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 04:35:23 BoogieIcfgContainer
[2020-08-21 16:35:23,905 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-21 16:35:23,907 INFO  L168              Benchmark]: Toolchain (without parser) took 11279.48 ms. Allocated memory was 147.3 MB in the beginning and 368.6 MB in the end (delta: 221.2 MB). Free memory was 100.7 MB in the beginning and 166.4 MB in the end (delta: -65.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,908 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,909 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 791.09 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 171.3 MB in the end (delta: -70.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,910 INFO  L168              Benchmark]: Boogie Preprocessor took 99.18 ms. Allocated memory is still 205.0 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,911 INFO  L168              Benchmark]: RCFGBuilder took 1385.00 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 182.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,913 INFO  L168              Benchmark]: TraceAbstraction took 8998.70 ms. Allocated memory was 238.0 MB in the beginning and 368.6 MB in the end (delta: 130.5 MB). Free memory was 182.3 MB in the beginning and 166.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 146.5 MB. Max. memory is 7.1 GB.
[2020-08-21 16:35:23,917 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 791.09 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.5 MB in the beginning and 171.3 MB in the end (delta: -70.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 99.18 ms. Allocated memory is still 205.0 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1385.00 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 182.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 8998.70 ms. Allocated memory was 238.0 MB in the beginning and 368.6 MB in the end (delta: 130.5 MB). Free memory was 182.3 MB in the beginning and 166.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 146.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 520]: 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: 606]: Loop Invariant
    Derived loop invariant: (((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(8 <= \old(a17))) || (8 <= a17 && a17 <= 8)) || ((!(a28 == 8) && a17 <= 8) && !(a28 == 11))
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 129 SDtfs, 2834 SDslu, 156 SDs, 0 SdLazy, 3064 SolverSat, 976 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=614occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 23 PreInvPairs, 39 NumberOfFragments, 215 HoareAnnotationTreeSize, 23 FomulaSimplifications, 5596 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 627 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 228857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 65/73 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...