/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c


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This is Ultimate 0.1.25-3af5e1f
[2020-09-04 13:39:33,463 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2020-09-04 13:39:33,572 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-04 13:39:33,614 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-04 13:39:33,615 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 13:39:33,616 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-04 13:39:33,617 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-04 13:39:33,617 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-04 13:39:33,617 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 13:39:33,618 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-04 13:39:33,618 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-04 13:39:33,618 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-04 13:39:33,618 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-04 13:39:33,619 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 13:39:33,619 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 13:39:33,619 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 13:39:33,620 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-04 13:39:33,621 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-04 13:39:33,621 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-04 13:39:33,621 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-04 13:39:33,622 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 13:39:33,622 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-04 13:39:33,622 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-04 13:39:33,622 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-04 13:39:33,623 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 13:39:33,623 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 13:39:33,623 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-04 13:39:33,623 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-04 13:39:33,623 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-04 13:39:33,624 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-04 13:39:33,624 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 13:39:33,624 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-04 13:39:33,624 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-09-04 13:39:34,114 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 13:39:34,138 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 13:39:34,142 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 13:39:34,144 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-04 13:39:34,144 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-04 13:39:34,145 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c
[2020-09-04 13:39:34,227 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b/FLAG1266c4dd6
[2020-09-04 13:39:34,905 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-04 13:39:34,906 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c
[2020-09-04 13:39:34,925 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b/FLAG1266c4dd6
[2020-09-04 13:39:35,129 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b
[2020-09-04 13:39:35,144 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 13:39:35,146 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 13:39:35,148 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 13:39:35,148 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 13:39:35,152 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 13:39:35,153 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:35" (1/1) ...
[2020-09-04 13:39:35,158 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a86aac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35, skipping insertion in model container
[2020-09-04 13:39:35,158 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:35" (1/1) ...
[2020-09-04 13:39:35,168 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-04 13:39:35,242 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-04 13:39:35,856 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-04 13:39:35,863 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-04 13:39:36,005 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-04 13:39:36,026 INFO  L208         MainTranslator]: Completed translation
[2020-09-04 13:39:36,027 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36 WrapperNode
[2020-09-04 13:39:36,027 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 13:39:36,028 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 13:39:36,028 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 13:39:36,028 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 13:39:36,042 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,043 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,065 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,066 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,111 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,138 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,147 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
[2020-09-04 13:39:36,174 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 13:39:36,175 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 13:39:36,175 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 13:39:36,176 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-04 13:39:36,177 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 13:39:36,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 13:39:36,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 13:39:36,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-04 13:39:36,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 13:39:36,260 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-04 13:39:36,260 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 13:39:36,261 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-04 13:39:36,261 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-04 13:39:36,261 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-04 13:39:36,261 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 13:39:36,261 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 13:39:37,790 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 13:39:37,790 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-04 13:39:37,798 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37 BoogieIcfgContainer
[2020-09-04 13:39:37,798 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 13:39:37,800 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 13:39:37,800 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 13:39:37,804 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-04 13:39:37,804 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:39:35" (1/3) ...
[2020-09-04 13:39:37,805 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc50e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container
[2020-09-04 13:39:37,805 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (2/3) ...
[2020-09-04 13:39:37,806 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc50e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container
[2020-09-04 13:39:37,806 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37" (3/3) ...
[2020-09-04 13:39:37,809 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem14_label30.c
[2020-09-04 13:39:37,821 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-09-04 13:39:37,831 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 13:39:37,854 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 13:39:37,889 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-04 13:39:37,889 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-04 13:39:37,889 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-09-04 13:39:37,890 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 13:39:37,890 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 13:39:37,890 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-04 13:39:37,890 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 13:39:37,890 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 13:39:37,919 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states.
[2020-09-04 13:39:37,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-09-04 13:39:37,930 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:37,932 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]
[2020-09-04 13:39:37,932 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:37,940 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:37,940 INFO  L82        PathProgramCache]: Analyzing trace with hash 2061919546, now seen corresponding path program 1 times
[2020-09-04 13:39:37,951 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:37,952 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527860882]
[2020-09-04 13:39:37,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:38,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:38,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:38,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:38,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 13:39:38,340 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527860882]
[2020-09-04 13:39:38,342 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 13:39:38,342 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-04 13:39:38,343 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778117709]
[2020-09-04 13:39:38,351 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-04 13:39:38,352 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:38,374 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-04 13:39:38,376 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-04 13:39:38,379 INFO  L87              Difference]: Start difference. First operand 254 states. Second operand 5 states.
[2020-09-04 13:39:41,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:41,672 INFO  L93              Difference]: Finished difference Result 902 states and 1625 transitions.
[2020-09-04 13:39:41,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-04 13:39:41,680 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 49
[2020-09-04 13:39:41,681 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:41,712 INFO  L225             Difference]: With dead ends: 902
[2020-09-04 13:39:41,712 INFO  L226             Difference]: Without dead ends: 564
[2020-09-04 13:39:41,722 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-04 13:39:41,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 564 states.
[2020-09-04 13:39:41,812 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376.
[2020-09-04 13:39:41,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 376 states.
[2020-09-04 13:39:41,818 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions.
[2020-09-04 13:39:41,821 INFO  L78                 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 49
[2020-09-04 13:39:41,821 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:41,821 INFO  L479      AbstractCegarLoop]: Abstraction has 376 states and 528 transitions.
[2020-09-04 13:39:41,822 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-04 13:39:41,822 INFO  L276                IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions.
[2020-09-04 13:39:41,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2020-09-04 13:39:41,829 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:41,829 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, 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]
[2020-09-04 13:39:41,830 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 13:39:41,830 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:41,830 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:41,831 INFO  L82        PathProgramCache]: Analyzing trace with hash 783093133, now seen corresponding path program 1 times
[2020-09-04 13:39:41,831 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:41,831 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664608823]
[2020-09-04 13:39:41,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:41,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:42,060 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:42,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:42,096 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:42,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:42,291 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 13:39:42,292 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664608823]
[2020-09-04 13:39:42,292 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 13:39:42,293 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-04 13:39:42,293 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552159324]
[2020-09-04 13:39:42,295 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-04 13:39:42,295 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:42,296 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-04 13:39:42,296 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-04 13:39:42,296 INFO  L87              Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states.
[2020-09-04 13:39:44,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:44,406 INFO  L93              Difference]: Finished difference Result 942 states and 1295 transitions.
[2020-09-04 13:39:44,407 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-09-04 13:39:44,407 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 132
[2020-09-04 13:39:44,408 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:44,412 INFO  L225             Difference]: With dead ends: 942
[2020-09-04 13:39:44,413 INFO  L226             Difference]: Without dead ends: 572
[2020-09-04 13:39:44,415 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2020-09-04 13:39:44,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 572 states.
[2020-09-04 13:39:44,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 564.
[2020-09-04 13:39:44,457 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 564 states.
[2020-09-04 13:39:44,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 745 transitions.
[2020-09-04 13:39:44,460 INFO  L78                 Accepts]: Start accepts. Automaton has 564 states and 745 transitions. Word has length 132
[2020-09-04 13:39:44,464 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:44,464 INFO  L479      AbstractCegarLoop]: Abstraction has 564 states and 745 transitions.
[2020-09-04 13:39:44,464 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-04 13:39:44,464 INFO  L276                IsEmpty]: Start isEmpty. Operand 564 states and 745 transitions.
[2020-09-04 13:39:44,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-04 13:39:44,474 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:44,475 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, 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]
[2020-09-04 13:39:44,475 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-04 13:39:44,475 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:44,476 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:44,476 INFO  L82        PathProgramCache]: Analyzing trace with hash 1340716769, now seen corresponding path program 1 times
[2020-09-04 13:39:44,476 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:44,476 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148125319]
[2020-09-04 13:39:44,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:44,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:44,626 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:44,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:44,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:44,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:44,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-09-04 13:39:44,839 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148125319]
[2020-09-04 13:39:44,840 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522820759]
[2020-09-04 13:39:44,840 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:44,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:44,945 INFO  L263         TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:44,958 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:45,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 13:39:45,069 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:45,070 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7
[2020-09-04 13:39:45,070 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310344080]
[2020-09-04 13:39:45,071 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:45,071 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:45,072 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:45,072 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-04 13:39:45,072 INFO  L87              Difference]: Start difference. First operand 564 states and 745 transitions. Second operand 3 states.
[2020-09-04 13:39:46,049 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:46,049 INFO  L93              Difference]: Finished difference Result 1118 states and 1494 transitions.
[2020-09-04 13:39:46,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:46,050 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 158
[2020-09-04 13:39:46,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:46,057 INFO  L225             Difference]: With dead ends: 1118
[2020-09-04 13:39:46,057 INFO  L226             Difference]: Without dead ends: 1116
[2020-09-04 13:39:46,058 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-04 13:39:46,060 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1116 states.
[2020-09-04 13:39:46,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 750.
[2020-09-04 13:39:46,120 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 750 states.
[2020-09-04 13:39:46,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1054 transitions.
[2020-09-04 13:39:46,124 INFO  L78                 Accepts]: Start accepts. Automaton has 750 states and 1054 transitions. Word has length 158
[2020-09-04 13:39:46,125 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:46,125 INFO  L479      AbstractCegarLoop]: Abstraction has 750 states and 1054 transitions.
[2020-09-04 13:39:46,126 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:46,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 750 states and 1054 transitions.
[2020-09-04 13:39:46,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 203
[2020-09-04 13:39:46,132 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:46,132 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-04 13:39:46,348 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2020-09-04 13:39:46,348 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:46,349 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:46,349 INFO  L82        PathProgramCache]: Analyzing trace with hash 1341152017, now seen corresponding path program 1 times
[2020-09-04 13:39:46,350 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:46,350 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888953031]
[2020-09-04 13:39:46,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:46,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:46,437 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:46,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:46,461 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:46,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:46,516 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2020-09-04 13:39:46,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:46,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-04 13:39:46,590 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888953031]
[2020-09-04 13:39:46,590 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119892533]
[2020-09-04 13:39:46,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:46,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:46,678 INFO  L263         TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-09-04 13:39:46,684 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:46,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2020-09-04 13:39:46,774 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:46,774 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10
[2020-09-04 13:39:46,774 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174123512]
[2020-09-04 13:39:46,775 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-04 13:39:46,776 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:46,776 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-04 13:39:46,776 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:46,777 INFO  L87              Difference]: Start difference. First operand 750 states and 1054 transitions. Second operand 5 states.
[2020-09-04 13:39:48,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:48,259 INFO  L93              Difference]: Finished difference Result 1892 states and 2738 transitions.
[2020-09-04 13:39:48,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-04 13:39:48,261 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 202
[2020-09-04 13:39:48,262 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:48,272 INFO  L225             Difference]: With dead ends: 1892
[2020-09-04 13:39:48,272 INFO  L226             Difference]: Without dead ends: 1148
[2020-09-04 13:39:48,276 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156
[2020-09-04 13:39:48,278 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1148 states.
[2020-09-04 13:39:48,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1126.
[2020-09-04 13:39:48,311 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1126 states.
[2020-09-04 13:39:48,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1479 transitions.
[2020-09-04 13:39:48,317 INFO  L78                 Accepts]: Start accepts. Automaton has 1126 states and 1479 transitions. Word has length 202
[2020-09-04 13:39:48,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:48,318 INFO  L479      AbstractCegarLoop]: Abstraction has 1126 states and 1479 transitions.
[2020-09-04 13:39:48,318 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-04 13:39:48,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 1126 states and 1479 transitions.
[2020-09-04 13:39:48,321 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 217
[2020-09-04 13:39:48,322 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:48,322 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-04 13:39:48,535 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:48,535 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:48,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:48,536 INFO  L82        PathProgramCache]: Analyzing trace with hash -2013904043, now seen corresponding path program 1 times
[2020-09-04 13:39:48,536 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:48,536 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132066025]
[2020-09-04 13:39:48,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:48,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:48,680 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:48,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:48,708 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:48,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:48,743 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:39:48,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:48,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 82 proven. 8 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2020-09-04 13:39:48,897 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132066025]
[2020-09-04 13:39:48,898 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136386880]
[2020-09-04 13:39:48,898 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:48,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:48,986 INFO  L263         TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:48,991 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:49,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2020-09-04 13:39:49,044 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:49,044 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8
[2020-09-04 13:39:49,044 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943313401]
[2020-09-04 13:39:49,045 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:49,045 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:49,046 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:49,046 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-09-04 13:39:49,046 INFO  L87              Difference]: Start difference. First operand 1126 states and 1479 transitions. Second operand 3 states.
[2020-09-04 13:39:50,220 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:50,220 INFO  L93              Difference]: Finished difference Result 3166 states and 4238 transitions.
[2020-09-04 13:39:50,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:50,222 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 216
[2020-09-04 13:39:50,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:50,233 INFO  L225             Difference]: With dead ends: 3166
[2020-09-04 13:39:50,233 INFO  L226             Difference]: Without dead ends: 2046
[2020-09-04 13:39:50,237 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-09-04 13:39:50,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2046 states.
[2020-09-04 13:39:50,287 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 1862.
[2020-09-04 13:39:50,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1862 states.
[2020-09-04 13:39:50,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2342 transitions.
[2020-09-04 13:39:50,297 INFO  L78                 Accepts]: Start accepts. Automaton has 1862 states and 2342 transitions. Word has length 216
[2020-09-04 13:39:50,298 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:50,298 INFO  L479      AbstractCegarLoop]: Abstraction has 1862 states and 2342 transitions.
[2020-09-04 13:39:50,298 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:50,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 1862 states and 2342 transitions.
[2020-09-04 13:39:50,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 229
[2020-09-04 13:39:50,303 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:50,303 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-04 13:39:50,517 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:50,517 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:50,518 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:50,518 INFO  L82        PathProgramCache]: Analyzing trace with hash 540782893, now seen corresponding path program 1 times
[2020-09-04 13:39:50,518 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:50,519 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457197209]
[2020-09-04 13:39:50,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:50,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:50,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:50,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:50,671 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:50,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:50,696 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:39:50,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:50,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 168 backedges. 82 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked.
[2020-09-04 13:39:50,822 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457197209]
[2020-09-04 13:39:50,822 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514491745]
[2020-09-04 13:39:50,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:50,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:50,939 INFO  L263         TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:50,945 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:51,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 168 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked.
[2020-09-04 13:39:51,061 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:51,062 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2020-09-04 13:39:51,063 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259123341]
[2020-09-04 13:39:51,063 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:51,064 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:51,064 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:51,064 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2020-09-04 13:39:51,064 INFO  L87              Difference]: Start difference. First operand 1862 states and 2342 transitions. Second operand 3 states.
[2020-09-04 13:39:52,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:52,212 INFO  L93              Difference]: Finished difference Result 4452 states and 5757 transitions.
[2020-09-04 13:39:52,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:52,213 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 228
[2020-09-04 13:39:52,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:52,228 INFO  L225             Difference]: With dead ends: 4452
[2020-09-04 13:39:52,229 INFO  L226             Difference]: Without dead ends: 2596
[2020-09-04 13:39:52,234 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2020-09-04 13:39:52,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2596 states.
[2020-09-04 13:39:52,299 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 2414.
[2020-09-04 13:39:52,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2414 states.
[2020-09-04 13:39:52,311 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3016 transitions.
[2020-09-04 13:39:52,311 INFO  L78                 Accepts]: Start accepts. Automaton has 2414 states and 3016 transitions. Word has length 228
[2020-09-04 13:39:52,312 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:52,312 INFO  L479      AbstractCegarLoop]: Abstraction has 2414 states and 3016 transitions.
[2020-09-04 13:39:52,312 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:52,313 INFO  L276                IsEmpty]: Start isEmpty. Operand 2414 states and 3016 transitions.
[2020-09-04 13:39:52,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2020-09-04 13:39:52,320 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:52,321 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-09-04 13:39:52,535 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:52,535 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:52,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:52,536 INFO  L82        PathProgramCache]: Analyzing trace with hash -1697739374, now seen corresponding path program 1 times
[2020-09-04 13:39:52,536 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:52,536 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90903134]
[2020-09-04 13:39:52,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:52,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:52,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:52,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:52,738 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:52,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:52,817 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:39:52,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:53,148 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-04 13:39:53,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:53,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 370 backedges. 160 proven. 203 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-04 13:39:53,450 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90903134]
[2020-09-04 13:39:53,450 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876121382]
[2020-09-04 13:39:53,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:53,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:53,556 INFO  L263         TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:53,593 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:53,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 370 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2020-09-04 13:39:53,678 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:53,678 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2020-09-04 13:39:53,679 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567054978]
[2020-09-04 13:39:53,679 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:53,680 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:53,680 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:53,680 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:53,680 INFO  L87              Difference]: Start difference. First operand 2414 states and 3016 transitions. Second operand 3 states.
[2020-09-04 13:39:54,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:54,798 INFO  L93              Difference]: Finished difference Result 5556 states and 7102 transitions.
[2020-09-04 13:39:54,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:54,799 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 325
[2020-09-04 13:39:54,800 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:54,815 INFO  L225             Difference]: With dead ends: 5556
[2020-09-04 13:39:54,815 INFO  L226             Difference]: Without dead ends: 3148
[2020-09-04 13:39:54,822 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:54,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3148 states.
[2020-09-04 13:39:54,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2784.
[2020-09-04 13:39:54,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2784 states.
[2020-09-04 13:39:54,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3534 transitions.
[2020-09-04 13:39:54,894 INFO  L78                 Accepts]: Start accepts. Automaton has 2784 states and 3534 transitions. Word has length 325
[2020-09-04 13:39:54,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:54,895 INFO  L479      AbstractCegarLoop]: Abstraction has 2784 states and 3534 transitions.
[2020-09-04 13:39:54,896 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:54,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 2784 states and 3534 transitions.
[2020-09-04 13:39:54,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 351
[2020-09-04 13:39:54,905 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:54,906 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-09-04 13:39:55,120 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2020-09-04 13:39:55,120 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:55,121 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:55,121 INFO  L82        PathProgramCache]: Analyzing trace with hash 1554306481, now seen corresponding path program 1 times
[2020-09-04 13:39:55,121 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:55,121 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811448923]
[2020-09-04 13:39:55,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:55,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:55,261 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:55,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:55,297 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:55,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:55,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:39:55,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:55,588 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-04 13:39:55,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:55,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 399 backedges. 160 proven. 232 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-04 13:39:55,921 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811448923]
[2020-09-04 13:39:55,921 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694022628]
[2020-09-04 13:39:55,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:56,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:56,049 INFO  L263         TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:56,052 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:56,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked.
[2020-09-04 13:39:56,149 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:56,150 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2020-09-04 13:39:56,150 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446513592]
[2020-09-04 13:39:56,151 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:56,151 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:56,151 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:56,151 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:56,152 INFO  L87              Difference]: Start difference. First operand 2784 states and 3534 transitions. Second operand 3 states.
[2020-09-04 13:39:57,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:57,277 INFO  L93              Difference]: Finished difference Result 5752 states and 7553 transitions.
[2020-09-04 13:39:57,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:57,277 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 350
[2020-09-04 13:39:57,278 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:57,292 INFO  L225             Difference]: With dead ends: 5752
[2020-09-04 13:39:57,292 INFO  L226             Difference]: Without dead ends: 3338
[2020-09-04 13:39:57,298 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:57,302 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3338 states.
[2020-09-04 13:39:57,367 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3156.
[2020-09-04 13:39:57,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3156 states.
[2020-09-04 13:39:57,375 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4131 transitions.
[2020-09-04 13:39:57,376 INFO  L78                 Accepts]: Start accepts. Automaton has 3156 states and 4131 transitions. Word has length 350
[2020-09-04 13:39:57,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:57,377 INFO  L479      AbstractCegarLoop]: Abstraction has 3156 states and 4131 transitions.
[2020-09-04 13:39:57,377 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:57,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 3156 states and 4131 transitions.
[2020-09-04 13:39:57,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 365
[2020-09-04 13:39:57,390 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:57,391 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-09-04 13:39:57,604 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:57,604 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:39:57,605 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:39:57,606 INFO  L82        PathProgramCache]: Analyzing trace with hash -954117331, now seen corresponding path program 1 times
[2020-09-04 13:39:57,606 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:39:57,606 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500681892]
[2020-09-04 13:39:57,607 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:39:57,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:57,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:39:57,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:57,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:39:57,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:57,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:39:57,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:58,091 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-04 13:39:58,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:58,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 160 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-04 13:39:58,441 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500681892]
[2020-09-04 13:39:58,441 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416701044]
[2020-09-04 13:39:58,442 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:39:58,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:39:58,555 INFO  L263         TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:39:58,558 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:39:58,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2020-09-04 13:39:58,710 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:39:58,711 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2020-09-04 13:39:58,711 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154549135]
[2020-09-04 13:39:58,712 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:39:58,712 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:39:58,712 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:39:58,712 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:58,713 INFO  L87              Difference]: Start difference. First operand 3156 states and 4131 transitions. Second operand 3 states.
[2020-09-04 13:39:59,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:39:59,696 INFO  L93              Difference]: Finished difference Result 4446 states and 5796 transitions.
[2020-09-04 13:39:59,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:39:59,697 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 364
[2020-09-04 13:39:59,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:39:59,723 INFO  L225             Difference]: With dead ends: 4446
[2020-09-04 13:39:59,723 INFO  L226             Difference]: Without dead ends: 4444
[2020-09-04 13:39:59,726 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:39:59,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4444 states.
[2020-09-04 13:39:59,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3166.
[2020-09-04 13:39:59,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3166 states.
[2020-09-04 13:39:59,842 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4151 transitions.
[2020-09-04 13:39:59,842 INFO  L78                 Accepts]: Start accepts. Automaton has 3166 states and 4151 transitions. Word has length 364
[2020-09-04 13:39:59,843 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:39:59,844 INFO  L479      AbstractCegarLoop]: Abstraction has 3166 states and 4151 transitions.
[2020-09-04 13:39:59,844 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:39:59,844 INFO  L276                IsEmpty]: Start isEmpty. Operand 3166 states and 4151 transitions.
[2020-09-04 13:39:59,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 399
[2020-09-04 13:39:59,864 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-04 13:39:59,864 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-09-04 13:40:00,077 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:40:00,077 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 13:40:00,077 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 13:40:00,078 INFO  L82        PathProgramCache]: Analyzing trace with hash -750146287, now seen corresponding path program 1 times
[2020-09-04 13:40:00,078 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 13:40:00,078 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499260526]
[2020-09-04 13:40:00,079 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 13:40:00,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:00,246 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 13:40:00,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:00,268 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-04 13:40:00,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:00,351 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2020-09-04 13:40:00,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:00,622 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-04 13:40:00,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:00,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 160 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-04 13:40:00,899 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499260526]
[2020-09-04 13:40:00,899 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16089505]
[2020-09-04 13:40:00,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-09-04 13:40:01,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 13:40:01,038 INFO  L263         TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-09-04 13:40:01,042 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-09-04 13:40:01,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2020-09-04 13:40:01,239 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-09-04 13:40:01,240 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2020-09-04 13:40:01,240 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85637042]
[2020-09-04 13:40:01,241 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 13:40:01,241 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 13:40:01,241 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 13:40:01,241 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:40:01,242 INFO  L87              Difference]: Start difference. First operand 3166 states and 4151 transitions. Second operand 3 states.
[2020-09-04 13:40:02,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 13:40:02,254 INFO  L93              Difference]: Finished difference Result 6876 states and 9077 transitions.
[2020-09-04 13:40:02,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-04 13:40:02,257 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 398
[2020-09-04 13:40:02,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 13:40:02,258 INFO  L225             Difference]: With dead ends: 6876
[2020-09-04 13:40:02,258 INFO  L226             Difference]: Without dead ends: 0
[2020-09-04 13:40:02,273 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2020-09-04 13:40:02,273 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-04 13:40:02,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-04 13:40:02,274 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-04 13:40:02,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-04 13:40:02,274 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398
[2020-09-04 13:40:02,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-04 13:40:02,274 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-04 13:40:02,274 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 13:40:02,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-04 13:40:02,275 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-04 13:40:02,489 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2020-09-04 13:40:02,493 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-04 13:40:03,944 WARN  L193               SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 30
[2020-09-04 13:40:04,111 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2020-09-04 13:40:04,111 INFO  L264        CegarLoopResult]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|))
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  L432(lines 432 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  L366(lines 366 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  L168-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  L102-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,112 INFO  L268        CegarLoopResult]: For program point  L36-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L235(lines 235 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L169(line 169)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L103(line 103)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L37(line 37)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L764(lines 764 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,113 INFO  L268        CegarLoopResult]: For program point  L632(lines 632 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L500(lines 500 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L831(lines 831 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L171-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L105-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L39-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L700(lines 700 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,114 INFO  L268        CegarLoopResult]: For program point  L568(lines 568 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L172(line 172)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L106(line 106)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L40(line 40)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L305(lines 305 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L438(lines 438 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L372(lines 372 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L174-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L108-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,115 INFO  L268        CegarLoopResult]: For program point  L42-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L241(lines 241 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L175(line 175)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L109(line 109)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L43(line 43)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L638(lines 638 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L506(lines 506 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,116 INFO  L268        CegarLoopResult]: For program point  L837(lines 837 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L771(lines 771 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L573(lines 573 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L177-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L111-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L45-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L706(lines 706 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,117 INFO  L268        CegarLoopResult]: For program point  L178(line 178)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L112(line 112)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L46(line 46)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L311(lines 311 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L444(lines 444 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L378(lines 378 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L180-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,118 INFO  L268        CegarLoopResult]: For program point  L114-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L48-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L247(lines 247 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L181(line 181)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L115(line 115)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L49(line 49)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L842(lines 842 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,119 INFO  L268        CegarLoopResult]: For program point  L644(lines 644 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L512(lines 512 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L777(lines 777 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L579(lines 579 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L183-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L117-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  L51-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,120 INFO  L268        CegarLoopResult]: For program point  calculate_outputEXIT(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L712(lines 712 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L184(line 184)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L118(line 118)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L52(line 52)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L449(lines 449 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L317(lines 317 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,121 INFO  L268        CegarLoopResult]: For program point  L384(lines 384 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L252(lines 252 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L186-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L120-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L54-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L187(line 187)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L121(line 121)  no Hoare annotation was computed.
[2020-09-04 13:40:04,122 INFO  L268        CegarLoopResult]: For program point  L55(line 55)  no Hoare annotation was computed.
[2020-09-04 13:40:04,124 INFO  L268        CegarLoopResult]: For program point  L848(lines 848 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,124 INFO  L268        CegarLoopResult]: For program point  L650(lines 650 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,124 INFO  L268        CegarLoopResult]: For program point  L518(lines 518 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,124 INFO  L268        CegarLoopResult]: For program point  L783(lines 783 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,124 INFO  L268        CegarLoopResult]: For program point  L585(lines 585 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L189-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L123-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L57-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L718(lines 718 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L454(lines 454 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L190(line 190)  no Hoare annotation was computed.
[2020-09-04 13:40:04,125 INFO  L268        CegarLoopResult]: For program point  L124(line 124)  no Hoare annotation was computed.
[2020-09-04 13:40:04,126 INFO  L268        CegarLoopResult]: For program point  L58(line 58)  no Hoare annotation was computed.
[2020-09-04 13:40:04,126 INFO  L268        CegarLoopResult]: For program point  L323(lines 323 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,127 INFO  L264        CegarLoopResult]: At program point  calculate_outputENTRY(lines 20 872)  the Hoare annotation is:  (let ((.cse0 (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)))) (and (or .cse0 (not (<= |old(~a21~0)| 6))) (or (not (<= 8 |old(~a21~0)|)) .cse0) (or .cse0 (not (<= 7 |old(~a15~0)|))) (or .cse0 (not (<= |old(~a15~0)| 5)))))
[2020-09-04 13:40:04,127 INFO  L268        CegarLoopResult]: For program point  L390(lines 390 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,127 INFO  L268        CegarLoopResult]: For program point  L258(lines 258 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,127 INFO  L268        CegarLoopResult]: For program point  L192-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L126-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L60-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L193(line 193)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L127(line 127)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L61(line 61)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L854(lines 854 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,128 INFO  L268        CegarLoopResult]: For program point  L656(lines 656 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L524(lines 524 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L789(lines 789 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L591(lines 591 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L195-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L129-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L63-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L724(lines 724 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,129 INFO  L268        CegarLoopResult]: For program point  L460(lines 460 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L196(line 196)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L130(line 130)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L64(line 64)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L329(lines 329 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L396(lines 396 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L264(lines 264 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,130 INFO  L268        CegarLoopResult]: For program point  L198-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L132-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L66-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L859(lines 859 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L199(line 199)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L133(line 133)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L67(line 67)  no Hoare annotation was computed.
[2020-09-04 13:40:04,131 INFO  L268        CegarLoopResult]: For program point  L662(lines 662 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L530(lines 530 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L795(lines 795 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L597(lines 597 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L201-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L135-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L69-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L730(lines 730 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,132 INFO  L268        CegarLoopResult]: For program point  L202(line 202)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L136(line 136)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L70(line 70)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L467(lines 467 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L335(lines 335 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L269(lines 269 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L402(lines 402 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,133 INFO  L268        CegarLoopResult]: For program point  L138-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,134 INFO  L268        CegarLoopResult]: For program point  L72-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,134 INFO  L268        CegarLoopResult]: For program point  L865(lines 865 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,134 INFO  L268        CegarLoopResult]: For program point  L139(line 139)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L73(line 73)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L668(lines 668 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L536(lines 536 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L801(lines 801 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L735(lines 735 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  L603(lines 603 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,135 INFO  L268        CegarLoopResult]: For program point  calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L141-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L75-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L472(lines 472 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L142(line 142)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L76(line 76)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L341(lines 341 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,136 INFO  L268        CegarLoopResult]: For program point  L275(lines 275 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L408(lines 408 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L144-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L78-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L541(lines 541 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L211(lines 211 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L145(line 145)  no Hoare annotation was computed.
[2020-09-04 13:40:04,137 INFO  L268        CegarLoopResult]: For program point  L79(line 79)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L674(lines 674 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L807(lines 807 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L741(lines 741 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L609(lines 609 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L147-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L81-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L478(lines 478 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,138 INFO  L268        CegarLoopResult]: For program point  L280(lines 280 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,139 INFO  L268        CegarLoopResult]: For program point  L148(line 148)  no Hoare annotation was computed.
[2020-09-04 13:40:04,140 INFO  L268        CegarLoopResult]: For program point  L82(line 82)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L677(lines 677 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L347(lines 347 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L414(lines 414 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L150-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L84-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  calculate_outputFINAL(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,141 INFO  L268        CegarLoopResult]: For program point  L547(lines 547 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L217(lines 217 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L151(line 151)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L85(line 85)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L747(lines 747 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L615(lines 615 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L153-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,142 INFO  L268        CegarLoopResult]: For program point  L87-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L21(lines 21 23)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L21-2(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L814(lines 814 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L484(lines 484 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L286(lines 286 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L154(line 154)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L88(line 88)  no Hoare annotation was computed.
[2020-09-04 13:40:04,143 INFO  L268        CegarLoopResult]: For program point  L22(line 22)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L683(lines 683 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L353(lines 353 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L552(lines 552 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L420(lines 420 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L156-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L90-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,144 INFO  L268        CegarLoopResult]: For program point  L24-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L223(lines 223 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L157(line 157)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L91(line 91)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L25(line 25)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L752(lines 752 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L819(lines 819 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,145 INFO  L268        CegarLoopResult]: For program point  L621(lines 621 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L555(lines 555 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L159-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L93-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L27-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L688(lines 688 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L490(lines 490 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L160(line 160)  no Hoare annotation was computed.
[2020-09-04 13:40:04,146 INFO  L268        CegarLoopResult]: For program point  L94(line 94)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L28(line 28)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L359(lines 359 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L293(lines 293 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L426(lines 426 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L162-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,147 INFO  L268        CegarLoopResult]: For program point  L96-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L30-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L229(lines 229 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L163(line 163)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L97(line 97)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L31(line 31)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L758(lines 758 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L626(lines 626 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,148 INFO  L268        CegarLoopResult]: For program point  L825(lines 825 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L561(lines 561 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L495(lines 495 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L165-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L99-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L33-1(lines 20 872)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L694(lines 694 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,149 INFO  L268        CegarLoopResult]: For program point  L166(line 166)  no Hoare annotation was computed.
[2020-09-04 13:40:04,150 INFO  L268        CegarLoopResult]: For program point  L100(line 100)  no Hoare annotation was computed.
[2020-09-04 13:40:04,150 INFO  L268        CegarLoopResult]: For program point  L34(line 34)  no Hoare annotation was computed.
[2020-09-04 13:40:04,150 INFO  L268        CegarLoopResult]: For program point  L299(lines 299 870)  no Hoare annotation was computed.
[2020-09-04 13:40:04,150 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-09-04 13:40:04,150 INFO  L264        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= 7 ~a21~0) (<= 8 ~a15~0) (<= (+ ~a12~0 49) 0) (<= ~a15~0 8))
[2020-09-04 13:40:04,152 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-09-04 13:40:04,152 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-09-04 13:40:04,154 INFO  L264        CegarLoopResult]: At program point  mainENTRY(lines 874 890)  the Hoare annotation is:  (or (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (and (<= 8 ~a15~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (<= ~a15~0 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)))
[2020-09-04 13:40:04,155 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 874 890)  no Hoare annotation was computed.
[2020-09-04 13:40:04,155 INFO  L264        CegarLoopResult]: At program point  L888(line 888)  the Hoare annotation is:  (or (<= ~a15~0 5) (<= 8 ~a21~0) (<= 7 ~a15~0) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (<= ~a21~0 6) (not (<= (+ |old(~a12~0)| 49) 0)))
[2020-09-04 13:40:04,155 INFO  L268        CegarLoopResult]: For program point  L888-1(line 888)  no Hoare annotation was computed.
[2020-09-04 13:40:04,155 INFO  L268        CegarLoopResult]: For program point  L885(line 885)  no Hoare annotation was computed.
[2020-09-04 13:40:04,155 INFO  L264        CegarLoopResult]: At program point  L880-2(lines 880 889)  the Hoare annotation is:  (or (<= ~a15~0 5) (<= 8 ~a21~0) (<= 7 ~a15~0) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (<= ~a21~0 6) (not (<= (+ |old(~a12~0)| 49) 0)))
[2020-09-04 13:40:04,156 INFO  L268        CegarLoopResult]: For program point  L880-3(lines 874 890)  no Hoare annotation was computed.
[2020-09-04 13:40:04,188 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:40:04 BoogieIcfgContainer
[2020-09-04 13:40:04,188 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 13:40:04,200 INFO  L168              Benchmark]: Toolchain (without parser) took 29044.46 ms. Allocated memory was 148.9 MB in the beginning and 679.5 MB in the end (delta: 530.6 MB). Free memory was 101.9 MB in the beginning and 149.8 MB in the end (delta: -47.9 MB). Peak memory consumption was 482.6 MB. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,201 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,203 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 880.37 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 101.7 MB in the beginning and 159.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,204 INFO  L168              Benchmark]: Boogie Preprocessor took 146.35 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 154.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,207 INFO  L168              Benchmark]: RCFGBuilder took 1623.18 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 154.1 MB in the beginning and 140.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,207 INFO  L168              Benchmark]: TraceAbstraction took 26388.66 ms. Allocated memory was 234.9 MB in the beginning and 679.5 MB in the end (delta: 444.6 MB). Free memory was 139.4 MB in the beginning and 149.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 434.1 MB. Max. memory is 7.1 GB.
[2020-09-04 13:40:04,217 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 880.37 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 101.7 MB in the beginning and 159.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 146.35 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 154.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1623.18 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 154.1 MB in the beginning and 140.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 26388.66 ms. Allocated memory was 234.9 MB in the beginning and 679.5 MB in the end (delta: 444.6 MB). Free memory was 139.4 MB in the beginning and 149.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 434.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 133]: 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: 880]: Loop Invariant
    Derived loop invariant: ((((((a15 <= 5 || 8 <= a21) || 7 <= a15) || !(8 <= \old(a15))) || !(\old(a15) <= 8)) || !(7 <= \old(a21))) || a21 <= 6) || !(\old(a12) + 49 <= 0)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.6s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1607 SDtfs, 3008 SDslu, 200 SDs, 0 SdLazy, 6919 SolverSat, 1347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2357 GetRequests, 2283 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3166occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 2774 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 92 PreInvPairs, 136 NumberOfFragments, 217 HoareAnnotationTreeSize, 92 FomulaSimplifications, 11701 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2897 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 4663 NumberOfCodeBlocks, 4663 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4645 ConstructedInterpolants, 0 QuantifiedInterpolants, 4729399 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3818 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 3271/4266 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...