/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i


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


This is Ultimate 0.1.24-6598664
[2019-11-24 04:04:34,723 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-11-24 04:04:34,763 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-11-24 04:04:34,794 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-11-24 04:04:34,795 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf
[2019-11-24 04:04:34,809 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-24 04:04:34,810 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-24 04:04:34,810 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2019-11-24 04:04:34,811 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2019-11-24 04:04:34,811 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2019-11-24 04:04:34,811 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2019-11-24 04:04:34,811 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2019-11-24 04:04:34,811 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2019-11-24 04:04:34,812 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2019-11-24 04:04:34,812 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2019-11-24 04:04:34,812 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2019-11-24 04:04:34,812 INFO  L138        SettingsManager]:  * Interval Domain=false
[2019-11-24 04:04:34,812 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2019-11-24 04:04:34,813 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2019-11-24 04:04:34,813 INFO  L138        SettingsManager]:  * Simplification Technique=SIMPLIFY_QUICK
[2019-11-24 04:04:34,813 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-24 04:04:34,814 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-24 04:04:34,814 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-24 04:04:34,814 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-24 04:04:34,814 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-24 04:04:34,814 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-24 04:04:34,815 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-24 04:04:34,815 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-24 04:04:34,815 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-24 04:04:34,815 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-24 04:04:34,815 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-24 04:04:34,816 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-24 04:04:34,816 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-24 04:04:34,816 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-24 04:04:34,816 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-24 04:04:34,816 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-24 04:04:34,817 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-24 04:04:34,817 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-24 04:04:34,817 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2019-11-24 04:04:34,817 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-24 04:04:34,817 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-24 04:04:34,818 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-24 04:04:34,818 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2019-11-24 04:04:35,124 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-24 04:04:35,144 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-24 04:04:35,148 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-24 04:04:35,151 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-24 04:04:35,152 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-24 04:04:35,152 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i
[2019-11-24 04:04:35,221 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c6f81e95/c3d0a9f3a02d40e9bfa1d8251f0e0ed7/FLAG01bc57b86
[2019-11-24 04:04:35,749 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-24 04:04:35,750 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-2.i
[2019-11-24 04:04:35,773 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c6f81e95/c3d0a9f3a02d40e9bfa1d8251f0e0ed7/FLAG01bc57b86
[2019-11-24 04:04:36,001 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c6f81e95/c3d0a9f3a02d40e9bfa1d8251f0e0ed7
[2019-11-24 04:04:36,010 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-24 04:04:36,012 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2019-11-24 04:04:36,013 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-24 04:04:36,013 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-24 04:04:36,016 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-24 04:04:36,017 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,020 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73766905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36, skipping insertion in model container
[2019-11-24 04:04:36,021 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,028 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-24 04:04:36,076 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2019-11-24 04:04:36,493 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-24 04:04:36,502 INFO  L203         MainTranslator]: Completed pre-run
[2019-11-24 04:04:36,568 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-24 04:04:36,619 INFO  L208         MainTranslator]: Completed translation
[2019-11-24 04:04:36,619 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36 WrapperNode
[2019-11-24 04:04:36,619 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-24 04:04:36,620 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-24 04:04:36,621 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-24 04:04:36,621 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-24 04:04:36,630 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,647 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,680 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-24 04:04:36,680 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-24 04:04:36,681 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-24 04:04:36,681 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-24 04:04:36,691 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,692 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,696 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,696 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,708 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,720 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,722 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
[2019-11-24 04:04:36,726 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-24 04:04:36,727 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-24 04:04:36,727 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-24 04:04:36,727 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-24 04:04:36,728 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-24 04:04:36,800 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-11-24 04:04:36,803 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-24 04:04:36,803 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-11-24 04:04:36,803 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-11-24 04:04:36,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-24 04:04:36,804 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-11-24 04:04:36,804 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-24 04:04:36,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-24 04:04:37,436 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-24 04:04:37,437 INFO  L284             CfgBuilder]: Removed 30 assume(true) statements.
[2019-11-24 04:04:37,438 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:04:37 BoogieIcfgContainer
[2019-11-24 04:04:37,439 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-24 04:04:37,440 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-24 04:04:37,440 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-11-24 04:04:37,443 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-11-24 04:04:37,444 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:04:36" (1/3) ...
[2019-11-24 04:04:37,445 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676e06f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:04:37, skipping insertion in model container
[2019-11-24 04:04:37,445 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:04:36" (2/3) ...
[2019-11-24 04:04:37,445 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676e06f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:04:37, skipping insertion in model container
[2019-11-24 04:04:37,446 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:04:37" (3/3) ...
[2019-11-24 04:04:37,447 INFO  L109   eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-2.i
[2019-11-24 04:04:37,458 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-24 04:04:37,466 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-24 04:04:37,479 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-24 04:04:37,506 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-11-24 04:04:37,506 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-11-24 04:04:37,506 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-24 04:04:37,506 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-24 04:04:37,507 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-24 04:04:37,507 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-11-24 04:04:37,507 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-24 04:04:37,507 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-24 04:04:37,524 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states.
[2019-11-24 04:04:37,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-11-24 04:04:37,530 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:37,531 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:37,532 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:37,538 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:37,539 INFO  L82        PathProgramCache]: Analyzing trace with hash -906067109, now seen corresponding path program 1 times
[2019-11-24 04:04:37,549 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:37,549 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58954468]
[2019-11-24 04:04:37,550 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:37,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:37,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:37,672 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58954468]
[2019-11-24 04:04:37,673 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 04:04:37,674 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 04:04:37,675 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565678787]
[2019-11-24 04:04:37,681 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-11-24 04:04:37,681 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:04:37,696 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-11-24 04:04:37,697 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-11-24 04:04:37,698 INFO  L87              Difference]: Start difference. First operand 28 states. Second operand 2 states.
[2019-11-24 04:04:37,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:04:37,717 INFO  L93              Difference]: Finished difference Result 53 states and 81 transitions.
[2019-11-24 04:04:37,717 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2019-11-24 04:04:37,719 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 11
[2019-11-24 04:04:37,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:04:37,730 INFO  L225             Difference]: With dead ends: 53
[2019-11-24 04:04:37,730 INFO  L226             Difference]: Without dead ends: 23
[2019-11-24 04:04:37,733 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-11-24 04:04:37,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2019-11-24 04:04:37,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2019-11-24 04:04:37,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2019-11-24 04:04:37,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions.
[2019-11-24 04:04:37,773 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 11
[2019-11-24 04:04:37,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:04:37,774 INFO  L462      AbstractCegarLoop]: Abstraction has 23 states and 29 transitions.
[2019-11-24 04:04:37,774 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-11-24 04:04:37,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions.
[2019-11-24 04:04:37,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-11-24 04:04:37,775 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:37,775 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:37,775 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:37,776 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:37,776 INFO  L82        PathProgramCache]: Analyzing trace with hash -1391808662, now seen corresponding path program 1 times
[2019-11-24 04:04:37,776 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:37,777 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104224456]
[2019-11-24 04:04:37,777 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:37,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:37,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:37,906 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104224456]
[2019-11-24 04:04:37,908 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 04:04:37,908 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-24 04:04:37,909 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222029872]
[2019-11-24 04:04:37,911 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-24 04:04:37,912 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:04:37,913 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-24 04:04:37,913 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-24 04:04:37,913 INFO  L87              Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 5 states.
[2019-11-24 04:04:38,032 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:04:38,032 INFO  L93              Difference]: Finished difference Result 48 states and 61 transitions.
[2019-11-24 04:04:38,033 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-24 04:04:38,033 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2019-11-24 04:04:38,033 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:04:38,034 INFO  L225             Difference]: With dead ends: 48
[2019-11-24 04:04:38,034 INFO  L226             Difference]: Without dead ends: 32
[2019-11-24 04:04:38,036 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2019-11-24 04:04:38,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2019-11-24 04:04:38,041 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28.
[2019-11-24 04:04:38,042 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2019-11-24 04:04:38,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions.
[2019-11-24 04:04:38,043 INFO  L78                 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14
[2019-11-24 04:04:38,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:04:38,043 INFO  L462      AbstractCegarLoop]: Abstraction has 28 states and 35 transitions.
[2019-11-24 04:04:38,044 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-24 04:04:38,044 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions.
[2019-11-24 04:04:38,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2019-11-24 04:04:38,045 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:38,045 INFO  L410         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:38,045 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:38,046 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:38,046 INFO  L82        PathProgramCache]: Analyzing trace with hash 1314997268, now seen corresponding path program 1 times
[2019-11-24 04:04:38,046 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:38,047 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938009336]
[2019-11-24 04:04:38,047 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:38,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:38,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:38,174 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938009336]
[2019-11-24 04:04:38,174 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77946978]
[2019-11-24 04:04:38,174 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/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
[2019-11-24 04:04:38,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:38,265 INFO  L255         TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core
[2019-11-24 04:04:38,273 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2019-11-24 04:04:38,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:38,312 INFO  L320         TraceCheckSpWp]: Computing backward predicates...
[2019-11-24 04:04:38,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:38,366 INFO  L220   FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-11-24 04:04:38,366 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 10
[2019-11-24 04:04:38,367 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735141752]
[2019-11-24 04:04:38,367 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-11-24 04:04:38,368 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:04:38,368 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-11-24 04:04:38,368 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2019-11-24 04:04:38,369 INFO  L87              Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 10 states.
[2019-11-24 04:04:38,711 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:04:38,712 INFO  L93              Difference]: Finished difference Result 98 states and 124 transitions.
[2019-11-24 04:04:38,712 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2019-11-24 04:04:38,713 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 16
[2019-11-24 04:04:38,713 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:04:38,716 INFO  L225             Difference]: With dead ends: 98
[2019-11-24 04:04:38,716 INFO  L226             Difference]: Without dead ends: 82
[2019-11-24 04:04:38,719 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272
[2019-11-24 04:04:38,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2019-11-24 04:04:38,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 31.
[2019-11-24 04:04:38,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2019-11-24 04:04:38,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions.
[2019-11-24 04:04:38,738 INFO  L78                 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 16
[2019-11-24 04:04:38,738 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:04:38,738 INFO  L462      AbstractCegarLoop]: Abstraction has 31 states and 38 transitions.
[2019-11-24 04:04:38,739 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2019-11-24 04:04:38,739 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions.
[2019-11-24 04:04:38,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-11-24 04:04:38,740 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:38,741 INFO  L410         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:38,944 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-24 04:04:38,944 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:38,945 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:38,945 INFO  L82        PathProgramCache]: Analyzing trace with hash -1495376527, now seen corresponding path program 1 times
[2019-11-24 04:04:38,946 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:38,946 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355178828]
[2019-11-24 04:04:38,947 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:38,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:39,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 04:04:39,088 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355178828]
[2019-11-24 04:04:39,088 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 04:04:39,088 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-11-24 04:04:39,090 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463441579]
[2019-11-24 04:04:39,090 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-11-24 04:04:39,090 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:04:39,090 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-11-24 04:04:39,091 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2019-11-24 04:04:39,092 INFO  L87              Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 6 states.
[2019-11-24 04:04:39,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:04:39,204 INFO  L93              Difference]: Finished difference Result 50 states and 60 transitions.
[2019-11-24 04:04:39,204 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-11-24 04:04:39,204 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 17
[2019-11-24 04:04:39,205 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:04:39,205 INFO  L225             Difference]: With dead ends: 50
[2019-11-24 04:04:39,205 INFO  L226             Difference]: Without dead ends: 47
[2019-11-24 04:04:39,206 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-11-24 04:04:39,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2019-11-24 04:04:39,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 33.
[2019-11-24 04:04:39,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2019-11-24 04:04:39,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions.
[2019-11-24 04:04:39,219 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 17
[2019-11-24 04:04:39,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:04:39,220 INFO  L462      AbstractCegarLoop]: Abstraction has 33 states and 41 transitions.
[2019-11-24 04:04:39,220 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-11-24 04:04:39,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions.
[2019-11-24 04:04:39,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2019-11-24 04:04:39,223 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:39,223 INFO  L410         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:39,224 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:39,224 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:39,224 INFO  L82        PathProgramCache]: Analyzing trace with hash 886344432, now seen corresponding path program 1 times
[2019-11-24 04:04:39,225 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:39,225 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82529507]
[2019-11-24 04:04:39,225 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:39,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:39,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-11-24 04:04:39,350 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82529507]
[2019-11-24 04:04:39,350 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998153774]
[2019-11-24 04:04:39,350 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/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
[2019-11-24 04:04:39,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:39,433 INFO  L255         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core
[2019-11-24 04:04:39,437 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2019-11-24 04:04:39,477 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-11-24 04:04:39,478 INFO  L320         TraceCheckSpWp]: Computing backward predicates...
[2019-11-24 04:04:39,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-11-24 04:04:39,508 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524125453]
[2019-11-24 04:04:39,535 INFO  L159        IcfgInterpreter]: Started Sifa with 16 locations of interest
[2019-11-24 04:04:39,535 INFO  L166        IcfgInterpreter]: Building call graph
[2019-11-24 04:04:39,542 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-11-24 04:04:39,549 INFO  L176        IcfgInterpreter]: Starting interpretation
[2019-11-24 04:04:39,550 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-11-24 04:04:39,843 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:40,352 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:40,602 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:41,281 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:41,433 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:41,607 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:42,215 WARN  L192               SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 215
[2019-11-24 04:04:42,525 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:42,665 INFO  L180        IcfgInterpreter]: Interpretation finished
[2019-11-24 04:04:42,829 WARN  L192               SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37
[2019-11-24 04:04:44,085 WARN  L192               SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 133 DAG size of output: 96
[2019-11-24 04:04:45,138 WARN  L192               SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 95
[2019-11-24 04:04:46,036 WARN  L192               SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81
[2019-11-24 04:04:46,662 WARN  L192               SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 86
[2019-11-24 04:04:47,118 WARN  L192               SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 90
[2019-11-24 04:04:47,595 WARN  L192               SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 104
[2019-11-24 04:04:48,060 WARN  L192               SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 95
[2019-11-24 04:04:50,208 WARN  L192               SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 212 DAG size of output: 148
[2019-11-24 04:04:51,603 WARN  L192               SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 221 DAG size of output: 119
[2019-11-24 04:04:51,604 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences.
[2019-11-24 04:04:51,604 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 17
[2019-11-24 04:04:51,605 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376219048]
[2019-11-24 04:04:51,606 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 13 states
[2019-11-24 04:04:51,606 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:04:51,606 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2019-11-24 04:04:51,607 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306
[2019-11-24 04:04:51,607 INFO  L87              Difference]: Start difference. First operand 33 states and 41 transitions. Second operand 13 states.
[2019-11-24 04:04:51,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:04:51,868 INFO  L93              Difference]: Finished difference Result 58 states and 73 transitions.
[2019-11-24 04:04:51,868 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2019-11-24 04:04:51,868 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 18
[2019-11-24 04:04:51,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:04:51,869 INFO  L225             Difference]: With dead ends: 58
[2019-11-24 04:04:51,869 INFO  L226             Difference]: Without dead ends: 41
[2019-11-24 04:04:51,871 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306
[2019-11-24 04:04:51,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2019-11-24 04:04:51,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2019-11-24 04:04:51,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2019-11-24 04:04:51,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions.
[2019-11-24 04:04:51,887 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 18
[2019-11-24 04:04:51,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:04:51,887 INFO  L462      AbstractCegarLoop]: Abstraction has 41 states and 50 transitions.
[2019-11-24 04:04:51,887 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2019-11-24 04:04:51,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions.
[2019-11-24 04:04:51,888 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2019-11-24 04:04:51,888 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:04:51,888 INFO  L410         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:04:52,098 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-24 04:04:52,099 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:04:52,100 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:04:52,100 INFO  L82        PathProgramCache]: Analyzing trace with hash -451686096, now seen corresponding path program 1 times
[2019-11-24 04:04:52,100 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:04:52,100 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955665264]
[2019-11-24 04:04:52,100 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:04:52,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:52,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2019-11-24 04:04:52,185 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955665264]
[2019-11-24 04:04:52,185 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968438533]
[2019-11-24 04:04:52,185 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/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
[2019-11-24 04:04:52,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:04:52,252 INFO  L255         TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core
[2019-11-24 04:04:52,254 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2019-11-24 04:04:52,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2019-11-24 04:04:52,266 INFO  L320         TraceCheckSpWp]: Computing backward predicates...
[2019-11-24 04:04:52,295 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2019-11-24 04:04:52,295 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1568214168]
[2019-11-24 04:04:52,298 INFO  L159        IcfgInterpreter]: Started Sifa with 16 locations of interest
[2019-11-24 04:04:52,298 INFO  L166        IcfgInterpreter]: Building call graph
[2019-11-24 04:04:52,299 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-11-24 04:04:52,299 INFO  L176        IcfgInterpreter]: Starting interpretation
[2019-11-24 04:04:52,299 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-11-24 04:04:52,436 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:52,732 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:52,871 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:53,254 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:53,415 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:53,514 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:54,123 WARN  L192               SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 223
[2019-11-24 04:04:54,324 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:04:54,462 INFO  L180        IcfgInterpreter]: Interpretation finished
[2019-11-24 04:04:55,370 WARN  L192               SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 89
[2019-11-24 04:04:56,218 WARN  L192               SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 93
[2019-11-24 04:04:57,059 WARN  L192               SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81
[2019-11-24 04:04:57,510 WARN  L192               SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 80
[2019-11-24 04:04:58,386 WARN  L192               SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 106
[2019-11-24 04:04:59,345 WARN  L192               SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 124
[2019-11-24 04:05:00,270 WARN  L192               SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112
[2019-11-24 04:05:02,271 WARN  L192               SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 220 DAG size of output: 146
[2019-11-24 04:05:03,580 WARN  L192               SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 229 DAG size of output: 120
[2019-11-24 04:05:03,581 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences.
[2019-11-24 04:05:03,581 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 17
[2019-11-24 04:05:03,582 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13395496]
[2019-11-24 04:05:03,582 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 13 states
[2019-11-24 04:05:03,583 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 04:05:03,583 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2019-11-24 04:05:03,584 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306
[2019-11-24 04:05:03,584 INFO  L87              Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 13 states.
[2019-11-24 04:05:03,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 04:05:03,997 INFO  L93              Difference]: Finished difference Result 57 states and 70 transitions.
[2019-11-24 04:05:03,997 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2019-11-24 04:05:03,997 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 20
[2019-11-24 04:05:03,997 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 04:05:03,998 INFO  L225             Difference]: With dead ends: 57
[2019-11-24 04:05:03,998 INFO  L226             Difference]: Without dead ends: 52
[2019-11-24 04:05:03,999 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306
[2019-11-24 04:05:03,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2019-11-24 04:05:04,007 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45.
[2019-11-24 04:05:04,007 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2019-11-24 04:05:04,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions.
[2019-11-24 04:05:04,008 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 20
[2019-11-24 04:05:04,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 04:05:04,009 INFO  L462      AbstractCegarLoop]: Abstraction has 45 states and 55 transitions.
[2019-11-24 04:05:04,009 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2019-11-24 04:05:04,009 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions.
[2019-11-24 04:05:04,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2019-11-24 04:05:04,010 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 04:05:04,010 INFO  L410         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 04:05:04,214 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-24 04:05:04,214 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 04:05:04,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 04:05:04,215 INFO  L82        PathProgramCache]: Analyzing trace with hash 484873613, now seen corresponding path program 1 times
[2019-11-24 04:05:04,215 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 04:05:04,215 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706055693]
[2019-11-24 04:05:04,215 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 04:05:04,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:05:04,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-11-24 04:05:04,292 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706055693]
[2019-11-24 04:05:04,293 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853336679]
[2019-11-24 04:05:04,293 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/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
[2019-11-24 04:05:04,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 04:05:04,352 INFO  L255         TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 14 conjunts are in the unsatisfiable core
[2019-11-24 04:05:04,353 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2019-11-24 04:05:04,445 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-11-24 04:05:04,445 INFO  L320         TraceCheckSpWp]: Computing backward predicates...
[2019-11-24 04:05:04,506 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-11-24 04:05:04,507 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [12539584]
[2019-11-24 04:05:04,509 INFO  L159        IcfgInterpreter]: Started Sifa with 16 locations of interest
[2019-11-24 04:05:04,510 INFO  L166        IcfgInterpreter]: Building call graph
[2019-11-24 04:05:04,510 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-11-24 04:05:04,510 INFO  L176        IcfgInterpreter]: Starting interpretation
[2019-11-24 04:05:04,510 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-11-24 04:05:05,077 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:05,236 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:05,387 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:05,496 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:06,433 WARN  L192               SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 216
[2019-11-24 04:05:07,383 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:07,626 WARN  L192               SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 276
[2019-11-24 04:05:07,646 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:07,831 WARN  L192               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 270
[2019-11-24 04:05:07,984 WARN  L192               SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 268
[2019-11-24 04:05:08,032 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:08,139 WARN  L192               SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 262
[2019-11-24 04:05:08,303 WARN  L192               SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 257
[2019-11-24 04:05:08,447 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:08,580 WARN  L192               SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 246
[2019-11-24 04:05:08,723 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:08,852 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:09,011 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:09,099 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:10,015 WARN  L192               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 356
[2019-11-24 04:05:10,184 WARN  L192               SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 351
[2019-11-24 04:05:10,317 WARN  L192               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 346
[2019-11-24 04:05:11,607 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:12,145 WARN  L192               SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230
[2019-11-24 04:05:12,423 WARN  L192               SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 219
[2019-11-24 04:05:12,675 WARN  L192               SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208
[2019-11-24 04:05:12,824 WARN  L192               SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 197
[2019-11-24 04:05:13,339 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:13,775 WARN  L192               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 368
[2019-11-24 04:05:14,038 WARN  L192               SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 365
[2019-11-24 04:05:14,227 WARN  L192               SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 360
[2019-11-24 04:05:15,050 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:15,631 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:15,685 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:15,740 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:15,756 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:15,772 WARN  L227             Elim1Store]: Array PQE input equivalent to false
[2019-11-24 04:05:16,200 WARN  L192               SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 212
[2019-11-24 04:05:16,343 WARN  L192               SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 232
[2019-11-24 04:05:16,564 WARN  L192               SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 231
[2019-11-24 04:05:16,735 WARN  L192               SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 253
[2019-11-24 04:05:17,069 WARN  L192               SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 254
[2019-11-24 04:05:17,337 WARN  L192               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 285
[2019-11-24 04:05:18,309 WARN  L192               SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285
[2019-11-24 04:05:18,867 WARN  L192               SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 344
[2019-11-24 04:05:21,978 WARN  L192               SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 345
[2019-11-24 04:05:23,505 WARN  L192               SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 490
[2019-11-24 04:05:36,724 WARN  L192               SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 491 DAG size of output: 491
[2019-11-24 04:05:41,468 WARN  L192               SmtUtils]: Spent 4.49 s on a formula simplification that was a NOOP. DAG size: 826
[2019-11-24 04:05:47,721 WARN  L177   XnfTransformerHelper]: Simplifying disjunction of 5873 conjuctions. This might take some time...
[2019-11-24 04:06:03,491 WARN  L138   XnfTransformerHelper]: expecting exponential blowup for input size 6
[2019-11-24 04:06:06,816 WARN  L177   XnfTransformerHelper]: Simplifying disjunction of 8093 conjuctions. This might take some time...