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/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:45:20,432 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-10-14 23:45:20,469 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-10-14 23:45:20,491 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-14 23:45:20,505 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:45:20,505 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:45:20,506 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:45:20,506 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:45:20,506 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:45:20,507 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:45:20,507 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:45:20,507 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:45:20,507 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:45:20,508 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:45:20,508 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:45:20,508 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:45:20,508 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:45:20,508 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:45:20,509 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:45:20,509 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:45:20,509 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:45:20,509 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:45:20,509 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:45:20,510 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:45:20,510 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:45:20,510 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:45:20,510 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:45:20,510 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:45:20,511 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:45:20,511 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:45:20,511 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:45:20,511 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:45:20,511 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:45:20,831 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:45:20,852 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:45:20,855 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:45:20,857 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:45:20,857 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:45:20,858 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:45:20,935 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a003108fb/b89b79610a2c473ba17c50699e2c2d5f/FLAG175d57852
[2019-10-14 23:45:21,538 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:45:21,539 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:45:21,554 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a003108fb/b89b79610a2c473ba17c50699e2c2d5f/FLAG175d57852
[2019-10-14 23:45:21,776 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a003108fb/b89b79610a2c473ba17c50699e2c2d5f
[2019-10-14 23:45:21,787 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:45:21,789 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:45:21,790 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:45:21,790 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:45:21,793 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:45:21,795 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:21" (1/1) ...
[2019-10-14 23:45:21,797 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5f647f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:21, skipping insertion in model container
[2019-10-14 23:45:21,798 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:21" (1/1) ...
[2019-10-14 23:45:21,805 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:45:21,883 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:45:22,503 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:45:22,531 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:45:23,031 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:45:23,052 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:45:23,052 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23 WrapperNode
[2019-10-14 23:45:23,053 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:45:23,053 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:45:23,053 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:45:23,054 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:45:23,064 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,064 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,085 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,085 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,120 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,146 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,152 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (1/1) ...
[2019-10-14 23:45:23,161 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:45:23,161 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:45:23,162 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:45:23,162 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:45:23,165 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (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
[2019-10-14 23:45:23,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:45:23,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:45:23,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:45:23,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:45:23,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:45:23,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-10-14 23:45:23,245 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 23:45:23,245 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-14 23:45:23,245 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 23:45:23,245 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-14 23:45:23,245 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-14 23:45:23,246 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-14 23:45:23,246 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-14 23:45:23,246 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-14 23:45:23,246 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-14 23:45:23,246 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-14 23:45:23,247 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:45:23,247 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:45:23,247 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:45:24,962 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:45:24,963 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-14 23:45:24,964 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:24 BoogieIcfgContainer
[2019-10-14 23:45:24,965 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:45:24,966 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:45:24,966 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:45:24,970 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:45:24,970 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:45:21" (1/3) ...
[2019-10-14 23:45:24,971 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a418120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:24, skipping insertion in model container
[2019-10-14 23:45:24,971 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:23" (2/3) ...
[2019-10-14 23:45:24,972 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a418120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:24, skipping insertion in model container
[2019-10-14 23:45:24,972 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:24" (3/3) ...
[2019-10-14 23:45:24,974 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:45:24,984 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:45:24,993 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-14 23:45:25,004 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-14 23:45:25,037 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:45:25,037 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:45:25,037 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:45:25,038 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:45:25,038 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:45:25,038 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:45:25,038 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:45:25,038 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:45:25,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 429 states.
[2019-10-14 23:45:25,090 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2019-10-14 23:45:25,090 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:25,092 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:25,094 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:25,099 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:25,099 INFO  L82        PathProgramCache]: Analyzing trace with hash 598173108, now seen corresponding path program 1 times
[2019-10-14 23:45:25,106 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:25,106 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8257491]
[2019-10-14 23:45:25,107 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:25,107 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:25,107 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:25,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:26,361 WARN  L191               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:26,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:26,474 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:26,475 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8257491]
[2019-10-14 23:45:26,475 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:26,476 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:26,476 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065849042]
[2019-10-14 23:45:26,482 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:26,483 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:26,497 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:26,498 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:26,500 INFO  L87              Difference]: Start difference. First operand 429 states. Second operand 5 states.
[2019-10-14 23:45:30,674 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:30,674 INFO  L93              Difference]: Finished difference Result 1245 states and 2212 transitions.
[2019-10-14 23:45:30,675 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:45:30,677 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 154
[2019-10-14 23:45:30,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:30,702 INFO  L225             Difference]: With dead ends: 1245
[2019-10-14 23:45:30,702 INFO  L226             Difference]: Without dead ends: 821
[2019-10-14 23:45:30,709 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:45:30,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 821 states.
[2019-10-14 23:45:30,818 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 794.
[2019-10-14 23:45:30,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 794 states.
[2019-10-14 23:45:30,826 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1136 transitions.
[2019-10-14 23:45:30,828 INFO  L78                 Accepts]: Start accepts. Automaton has 794 states and 1136 transitions. Word has length 154
[2019-10-14 23:45:30,829 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:30,829 INFO  L462      AbstractCegarLoop]: Abstraction has 794 states and 1136 transitions.
[2019-10-14 23:45:30,829 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:30,829 INFO  L276                IsEmpty]: Start isEmpty. Operand 794 states and 1136 transitions.
[2019-10-14 23:45:30,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2019-10-14 23:45:30,835 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:30,835 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:30,836 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:30,836 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:30,836 INFO  L82        PathProgramCache]: Analyzing trace with hash 1172332246, now seen corresponding path program 1 times
[2019-10-14 23:45:30,836 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:30,837 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172275799]
[2019-10-14 23:45:30,837 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:30,837 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:30,837 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:30,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:31,175 WARN  L191               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:31,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:31,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:31,247 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172275799]
[2019-10-14 23:45:31,247 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:31,247 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:31,247 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616024975]
[2019-10-14 23:45:31,250 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:31,250 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:31,250 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:31,251 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:31,251 INFO  L87              Difference]: Start difference. First operand 794 states and 1136 transitions. Second operand 4 states.
[2019-10-14 23:45:34,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:34,821 INFO  L93              Difference]: Finished difference Result 2336 states and 3338 transitions.
[2019-10-14 23:45:34,822 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:34,822 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 155
[2019-10-14 23:45:34,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:34,835 INFO  L225             Difference]: With dead ends: 2336
[2019-10-14 23:45:34,835 INFO  L226             Difference]: Without dead ends: 1574
[2019-10-14 23:45:34,847 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:34,851 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1574 states.
[2019-10-14 23:45:34,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 796.
[2019-10-14 23:45:34,929 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 796 states.
[2019-10-14 23:45:34,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1138 transitions.
[2019-10-14 23:45:34,936 INFO  L78                 Accepts]: Start accepts. Automaton has 796 states and 1138 transitions. Word has length 155
[2019-10-14 23:45:34,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:34,939 INFO  L462      AbstractCegarLoop]: Abstraction has 796 states and 1138 transitions.
[2019-10-14 23:45:34,941 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:34,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 796 states and 1138 transitions.
[2019-10-14 23:45:34,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2019-10-14 23:45:34,949 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:34,949 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:34,950 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:34,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:34,951 INFO  L82        PathProgramCache]: Analyzing trace with hash 501625459, now seen corresponding path program 1 times
[2019-10-14 23:45:34,952 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:34,952 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188321078]
[2019-10-14 23:45:34,952 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:34,952 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:34,953 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:35,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:35,494 WARN  L191               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:35,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:35,557 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:35,558 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188321078]
[2019-10-14 23:45:35,558 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:35,559 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:35,568 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203370426]
[2019-10-14 23:45:35,569 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:35,570 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:35,570 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:35,571 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:35,571 INFO  L87              Difference]: Start difference. First operand 796 states and 1138 transitions. Second operand 4 states.
[2019-10-14 23:45:39,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:39,175 INFO  L93              Difference]: Finished difference Result 2139 states and 3061 transitions.
[2019-10-14 23:45:39,176 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:39,176 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 156
[2019-10-14 23:45:39,177 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:39,186 INFO  L225             Difference]: With dead ends: 2139
[2019-10-14 23:45:39,186 INFO  L226             Difference]: Without dead ends: 1540
[2019-10-14 23:45:39,188 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:39,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1540 states.
[2019-10-14 23:45:39,248 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1513.
[2019-10-14 23:45:39,249 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1513 states.
[2019-10-14 23:45:39,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2153 transitions.
[2019-10-14 23:45:39,255 INFO  L78                 Accepts]: Start accepts. Automaton has 1513 states and 2153 transitions. Word has length 156
[2019-10-14 23:45:39,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:39,256 INFO  L462      AbstractCegarLoop]: Abstraction has 1513 states and 2153 transitions.
[2019-10-14 23:45:39,256 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:39,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 1513 states and 2153 transitions.
[2019-10-14 23:45:39,260 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2019-10-14 23:45:39,260 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:39,260 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:39,261 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:39,261 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:39,261 INFO  L82        PathProgramCache]: Analyzing trace with hash 104654224, now seen corresponding path program 1 times
[2019-10-14 23:45:39,262 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:39,262 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230892573]
[2019-10-14 23:45:39,262 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:39,262 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:39,262 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:39,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:39,723 WARN  L191               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:39,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:39,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:39,804 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230892573]
[2019-10-14 23:45:39,804 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:39,804 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:39,804 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590028192]
[2019-10-14 23:45:39,805 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:39,805 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:39,805 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:39,806 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:39,806 INFO  L87              Difference]: Start difference. First operand 1513 states and 2153 transitions. Second operand 5 states.
[2019-10-14 23:45:41,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:41,550 INFO  L93              Difference]: Finished difference Result 2489 states and 3549 transitions.
[2019-10-14 23:45:41,550 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:41,550 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 156
[2019-10-14 23:45:41,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:41,557 INFO  L225             Difference]: With dead ends: 2489
[2019-10-14 23:45:41,558 INFO  L226             Difference]: Without dead ends: 1161
[2019-10-14 23:45:41,561 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:45:41,564 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1161 states.
[2019-10-14 23:45:41,604 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161.
[2019-10-14 23:45:41,605 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1161 states.
[2019-10-14 23:45:41,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1645 transitions.
[2019-10-14 23:45:41,610 INFO  L78                 Accepts]: Start accepts. Automaton has 1161 states and 1645 transitions. Word has length 156
[2019-10-14 23:45:41,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:41,611 INFO  L462      AbstractCegarLoop]: Abstraction has 1161 states and 1645 transitions.
[2019-10-14 23:45:41,611 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:41,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 1161 states and 1645 transitions.
[2019-10-14 23:45:41,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2019-10-14 23:45:41,615 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:41,615 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:41,616 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:41,616 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:41,616 INFO  L82        PathProgramCache]: Analyzing trace with hash -1233167963, now seen corresponding path program 1 times
[2019-10-14 23:45:41,616 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:41,617 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270092378]
[2019-10-14 23:45:41,617 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:41,617 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:41,617 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:41,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:42,005 WARN  L191               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:42,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:42,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:42,078 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270092378]
[2019-10-14 23:45:42,079 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:42,079 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:42,079 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974673647]
[2019-10-14 23:45:42,080 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:42,080 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:42,080 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:42,081 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:42,081 INFO  L87              Difference]: Start difference. First operand 1161 states and 1645 transitions. Second operand 4 states.
[2019-10-14 23:45:44,321 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:44,322 INFO  L93              Difference]: Finished difference Result 2522 states and 3657 transitions.
[2019-10-14 23:45:44,322 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:44,322 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 158
[2019-10-14 23:45:44,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:44,331 INFO  L225             Difference]: With dead ends: 2522
[2019-10-14 23:45:44,331 INFO  L226             Difference]: Without dead ends: 1547
[2019-10-14 23:45:44,334 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:44,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1547 states.
[2019-10-14 23:45:44,381 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1382.
[2019-10-14 23:45:44,381 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1382 states.
[2019-10-14 23:45:44,386 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 2003 transitions.
[2019-10-14 23:45:44,386 INFO  L78                 Accepts]: Start accepts. Automaton has 1382 states and 2003 transitions. Word has length 158
[2019-10-14 23:45:44,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:44,386 INFO  L462      AbstractCegarLoop]: Abstraction has 1382 states and 2003 transitions.
[2019-10-14 23:45:44,386 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:44,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 1382 states and 2003 transitions.
[2019-10-14 23:45:44,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2019-10-14 23:45:44,390 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:44,390 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:44,390 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:44,391 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:44,391 INFO  L82        PathProgramCache]: Analyzing trace with hash -866694497, now seen corresponding path program 1 times
[2019-10-14 23:45:44,391 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:44,391 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486772572]
[2019-10-14 23:45:44,392 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:44,392 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:44,392 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:44,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:44,706 WARN  L191               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:44,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:44,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:44,746 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486772572]
[2019-10-14 23:45:44,746 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:44,747 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:44,747 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963019872]
[2019-10-14 23:45:44,747 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:44,748 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:44,748 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:44,748 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:44,748 INFO  L87              Difference]: Start difference. First operand 1382 states and 2003 transitions. Second operand 4 states.
[2019-10-14 23:45:47,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:47,139 INFO  L93              Difference]: Finished difference Result 3110 states and 4621 transitions.
[2019-10-14 23:45:47,140 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:47,140 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 160
[2019-10-14 23:45:47,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:47,149 INFO  L225             Difference]: With dead ends: 3110
[2019-10-14 23:45:47,149 INFO  L226             Difference]: Without dead ends: 1998
[2019-10-14 23:45:47,152 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:47,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1998 states.
[2019-10-14 23:45:47,221 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1771.
[2019-10-14 23:45:47,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1771 states.
[2019-10-14 23:45:47,226 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2632 transitions.
[2019-10-14 23:45:47,227 INFO  L78                 Accepts]: Start accepts. Automaton has 1771 states and 2632 transitions. Word has length 160
[2019-10-14 23:45:47,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:47,227 INFO  L462      AbstractCegarLoop]: Abstraction has 1771 states and 2632 transitions.
[2019-10-14 23:45:47,227 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:47,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 1771 states and 2632 transitions.
[2019-10-14 23:45:47,230 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2019-10-14 23:45:47,230 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:47,231 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:47,231 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:47,231 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:47,232 INFO  L82        PathProgramCache]: Analyzing trace with hash 753095009, now seen corresponding path program 1 times
[2019-10-14 23:45:47,232 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:47,232 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325286304]
[2019-10-14 23:45:47,232 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:47,232 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:47,233 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:47,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:47,864 WARN  L191               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:47,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:47,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:47,980 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325286304]
[2019-10-14 23:45:47,980 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:47,980 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2019-10-14 23:45:47,980 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515146912]
[2019-10-14 23:45:47,981 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 14 states
[2019-10-14 23:45:47,981 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:47,981 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2019-10-14 23:45:47,982 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182
[2019-10-14 23:45:47,982 INFO  L87              Difference]: Start difference. First operand 1771 states and 2632 transitions. Second operand 14 states.
[2019-10-14 23:45:48,332 WARN  L191               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2019-10-14 23:45:54,049 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:54,049 INFO  L93              Difference]: Finished difference Result 14490 states and 22590 transitions.
[2019-10-14 23:45:54,050 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2019-10-14 23:45:54,050 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 161
[2019-10-14 23:45:54,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:54,109 INFO  L225             Difference]: With dead ends: 14490
[2019-10-14 23:45:54,109 INFO  L226             Difference]: Without dead ends: 12938
[2019-10-14 23:45:54,118 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=372, Invalid=960, Unknown=0, NotChecked=0, Total=1332
[2019-10-14 23:45:54,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12938 states.
[2019-10-14 23:45:54,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12938 to 7935.
[2019-10-14 23:45:54,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7935 states.
[2019-10-14 23:45:54,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7935 states to 7935 states and 12108 transitions.
[2019-10-14 23:45:54,645 INFO  L78                 Accepts]: Start accepts. Automaton has 7935 states and 12108 transitions. Word has length 161
[2019-10-14 23:45:54,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:54,646 INFO  L462      AbstractCegarLoop]: Abstraction has 7935 states and 12108 transitions.
[2019-10-14 23:45:54,646 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2019-10-14 23:45:54,646 INFO  L276                IsEmpty]: Start isEmpty. Operand 7935 states and 12108 transitions.
[2019-10-14 23:45:54,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2019-10-14 23:45:54,653 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:54,653 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:54,653 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:54,654 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:54,654 INFO  L82        PathProgramCache]: Analyzing trace with hash -1464453224, now seen corresponding path program 1 times
[2019-10-14 23:45:54,654 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:54,654 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562563445]
[2019-10-14 23:45:54,654 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:54,654 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:54,655 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:54,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:55,106 WARN  L191               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:55,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:55,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:55,202 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562563445]
[2019-10-14 23:45:55,203 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:55,203 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2019-10-14 23:45:55,203 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992155336]
[2019-10-14 23:45:55,204 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-14 23:45:55,204 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:55,204 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-14 23:45:55,205 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2019-10-14 23:45:55,205 INFO  L87              Difference]: Start difference. First operand 7935 states and 12108 transitions. Second operand 10 states.
[2019-10-14 23:45:55,589 WARN  L191               SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205
[2019-10-14 23:45:57,863 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:57,864 INFO  L93              Difference]: Finished difference Result 11115 states and 17157 transitions.
[2019-10-14 23:45:57,864 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2019-10-14 23:45:57,864 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 161
[2019-10-14 23:45:57,864 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:57,880 INFO  L225             Difference]: With dead ends: 11115
[2019-10-14 23:45:57,880 INFO  L226             Difference]: Without dead ends: 3905
[2019-10-14 23:45:57,893 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2019-10-14 23:45:57,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3905 states.