/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-fb55353
[2019-11-06 22:14:34,783 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-11-06 22:14:34,799 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-11-06 22:14:34,849 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
[2019-11-06 22:14:34,875 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-06 22:14:34,875 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-06 22:14:34,877 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-06 22:14:34,877 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-06 22:14:34,878 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-06 22:14:34,878 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-06 22:14:34,878 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-06 22:14:34,878 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-06 22:14:34,878 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-06 22:14:34,879 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-06 22:14:34,880 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-06 22:14:34,880 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-06 22:14:34,880 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-06 22:14:34,880 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-06 22:14:34,881 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-06 22:14:34,881 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-06 22:14:34,881 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-06 22:14:34,881 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-06 22:14:34,881 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-06 22:14:34,881 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-06 22:14:34,882 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-06 22:14:34,882 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 22:14:34,882 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-06 22:14:34,882 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-06 22:14:34,883 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-06 22:14:34,883 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-06 22:14:34,883 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-06 22:14:34,883 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-06 22:14:34,883 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-06 22:14:35,140 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-06 22:14:35,155 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-06 22:14:35,159 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-06 22:14:35,161 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-06 22:14:35,161 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-06 22:14:35,162 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:14:35,241 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eab0067c/eed4a79beb444c51a5bcf1dc000ee7df/FLAG94df3d837
[2019-11-06 22:14:35,805 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-06 22:14:35,806 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:14:35,826 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eab0067c/eed4a79beb444c51a5bcf1dc000ee7df/FLAG94df3d837
[2019-11-06 22:14:36,078 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eab0067c/eed4a79beb444c51a5bcf1dc000ee7df
[2019-11-06 22:14:36,087 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-06 22:14:36,089 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-06 22:14:36,091 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-06 22:14:36,091 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-06 22:14:36,095 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-06 22:14:36,096 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:36" (1/1) ...
[2019-11-06 22:14:36,098 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b24e2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:36, skipping insertion in model container
[2019-11-06 22:14:36,099 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:36" (1/1) ...
[2019-11-06 22:14:36,105 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-06 22:14:36,169 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-06 22:14:36,793 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 22:14:36,824 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-06 22:14:37,259 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 22:14:37,287 INFO  L192         MainTranslator]: Completed translation
[2019-11-06 22:14:37,288 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37 WrapperNode
[2019-11-06 22:14:37,289 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-06 22:14:37,290 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-06 22:14:37,290 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-06 22:14:37,291 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-06 22:14:37,306 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,307 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,349 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,353 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,403 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,424 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,429 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (1/1) ...
[2019-11-06 22:14:37,438 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-06 22:14:37,439 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-06 22:14:37,439 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-06 22:14:37,439 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-06 22:14:37,440 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (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
[2019-11-06 22:14:37,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-06 22:14:37,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-06 22:14:37,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-11-06 22:14:37,517 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-06 22:14:37,517 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-11-06 22:14:37,518 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-11-06 22:14:37,518 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-11-06 22:14:37,519 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-11-06 22:14:37,519 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-11-06 22:14:37,519 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-11-06 22:14:37,519 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-11-06 22:14:37,520 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-11-06 22:14:37,520 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-11-06 22:14:37,520 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-11-06 22:14:37,521 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-11-06 22:14:37,522 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-11-06 22:14:37,524 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-11-06 22:14:37,524 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-06 22:14:37,525 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-06 22:14:39,387 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-06 22:14:39,387 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-06 22:14:39,389 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:39 BoogieIcfgContainer
[2019-11-06 22:14:39,389 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-06 22:14:39,390 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-06 22:14:39,390 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-11-06 22:14:39,394 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-11-06 22:14:39,394 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:14:36" (1/3) ...
[2019-11-06 22:14:39,395 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b5c4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:14:39, skipping insertion in model container
[2019-11-06 22:14:39,395 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:37" (2/3) ...
[2019-11-06 22:14:39,395 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b5c4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:14:39, skipping insertion in model container
[2019-11-06 22:14:39,396 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:39" (3/3) ...
[2019-11-06 22:14:39,397 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:14:39,410 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-06 22:14:39,434 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-11-06 22:14:39,446 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-11-06 22:14:39,494 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-11-06 22:14:39,494 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-11-06 22:14:39,494 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-06 22:14:39,494 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-06 22:14:39,494 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-06 22:14:39,495 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-11-06 22:14:39,495 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-06 22:14:39,495 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-06 22:14:39,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 423 states.
[2019-11-06 22:14:39,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-11-06 22:14:39,579 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:39,580 INFO  L410         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]
[2019-11-06 22:14:39,583 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:39,589 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:39,589 INFO  L82        PathProgramCache]: Analyzing trace with hash 431419903, now seen corresponding path program 1 times
[2019-11-06 22:14:39,598 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:39,599 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212050250]
[2019-11-06 22:14:39,599 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:40,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:40,659 WARN  L191               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:40,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:40,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:40,721 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212050250]
[2019-11-06 22:14:40,722 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:40,722 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:14:40,724 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837732517]
[2019-11-06 22:14:40,729 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:14:40,730 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:40,743 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:14:40,744 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:14:40,746 INFO  L87              Difference]: Start difference. First operand 423 states. Second operand 4 states.
[2019-11-06 22:14:41,123 WARN  L191               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-11-06 22:14:43,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:14:43,848 INFO  L93              Difference]: Finished difference Result 780 states and 1363 transitions.
[2019-11-06 22:14:43,848 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:14:43,850 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-11-06 22:14:43,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:14:43,872 INFO  L225             Difference]: With dead ends: 780
[2019-11-06 22:14:43,872 INFO  L226             Difference]: Without dead ends: 620
[2019-11-06 22:14:43,877 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:14:43,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 620 states.
[2019-11-06 22:14:43,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 618.
[2019-11-06 22:14:43,968 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 618 states.
[2019-11-06 22:14:43,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 908 transitions.
[2019-11-06 22:14:43,973 INFO  L78                 Accepts]: Start accepts. Automaton has 618 states and 908 transitions. Word has length 148
[2019-11-06 22:14:43,974 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:14:43,974 INFO  L462      AbstractCegarLoop]: Abstraction has 618 states and 908 transitions.
[2019-11-06 22:14:43,974 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:14:43,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 618 states and 908 transitions.
[2019-11-06 22:14:43,977 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-11-06 22:14:43,977 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:43,978 INFO  L410         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]
[2019-11-06 22:14:43,978 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:43,978 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:43,979 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285034941, now seen corresponding path program 1 times
[2019-11-06 22:14:43,979 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:43,979 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786822811]
[2019-11-06 22:14:43,979 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:44,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:44,446 WARN  L191               SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:44,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:44,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:44,521 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786822811]
[2019-11-06 22:14:44,521 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:44,521 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:14:44,522 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204841565]
[2019-11-06 22:14:44,525 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:14:44,526 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:44,526 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:14:44,527 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:14:44,527 INFO  L87              Difference]: Start difference. First operand 618 states and 908 transitions. Second operand 4 states.
[2019-11-06 22:14:44,826 WARN  L191               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-11-06 22:14:46,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:14:46,884 INFO  L93              Difference]: Finished difference Result 1261 states and 1910 transitions.
[2019-11-06 22:14:46,884 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:14:46,885 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-11-06 22:14:46,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:14:46,895 INFO  L225             Difference]: With dead ends: 1261
[2019-11-06 22:14:46,895 INFO  L226             Difference]: Without dead ends: 1038
[2019-11-06 22:14:46,903 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:14:46,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1038 states.
[2019-11-06 22:14:46,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1036.
[2019-11-06 22:14:46,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1036 states.
[2019-11-06 22:14:46,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1547 transitions.
[2019-11-06 22:14:46,979 INFO  L78                 Accepts]: Start accepts. Automaton has 1036 states and 1547 transitions. Word has length 148
[2019-11-06 22:14:46,980 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:14:46,980 INFO  L462      AbstractCegarLoop]: Abstraction has 1036 states and 1547 transitions.
[2019-11-06 22:14:46,981 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:14:46,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 1036 states and 1547 transitions.
[2019-11-06 22:14:46,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-11-06 22:14:46,987 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:46,987 INFO  L410         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]
[2019-11-06 22:14:46,988 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:46,988 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:46,988 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285373565, now seen corresponding path program 1 times
[2019-11-06 22:14:46,989 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:46,989 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319403197]
[2019-11-06 22:14:46,989 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:47,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:47,570 WARN  L191               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:47,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:47,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:47,613 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319403197]
[2019-11-06 22:14:47,613 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:47,613 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:14:47,614 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569673415]
[2019-11-06 22:14:47,614 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:14:47,615 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:47,615 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:14:47,615 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:14:47,616 INFO  L87              Difference]: Start difference. First operand 1036 states and 1547 transitions. Second operand 5 states.
[2019-11-06 22:14:50,757 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:14:50,758 INFO  L93              Difference]: Finished difference Result 3025 states and 4506 transitions.
[2019-11-06 22:14:50,759 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:14:50,759 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-11-06 22:14:50,759 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:14:50,775 INFO  L225             Difference]: With dead ends: 3025
[2019-11-06 22:14:50,775 INFO  L226             Difference]: Without dead ends: 2002
[2019-11-06 22:14:50,779 INFO  L630         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
[2019-11-06 22:14:50,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2002 states.
[2019-11-06 22:14:50,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1954.
[2019-11-06 22:14:50,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1954 states.
[2019-11-06 22:14:50,905 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2902 transitions.
[2019-11-06 22:14:50,906 INFO  L78                 Accepts]: Start accepts. Automaton has 1954 states and 2902 transitions. Word has length 148
[2019-11-06 22:14:50,906 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:14:50,907 INFO  L462      AbstractCegarLoop]: Abstraction has 1954 states and 2902 transitions.
[2019-11-06 22:14:50,907 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:14:50,907 INFO  L276                IsEmpty]: Start isEmpty. Operand 1954 states and 2902 transitions.
[2019-11-06 22:14:50,913 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2019-11-06 22:14:50,913 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:50,914 INFO  L410         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]
[2019-11-06 22:14:50,914 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:50,915 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:50,915 INFO  L82        PathProgramCache]: Analyzing trace with hash 2096736245, now seen corresponding path program 1 times
[2019-11-06 22:14:50,916 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:50,916 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698494593]
[2019-11-06 22:14:50,916 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:50,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:51,387 WARN  L191               SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:51,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:51,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:51,444 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698494593]
[2019-11-06 22:14:51,444 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:51,445 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:14:51,445 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120147597]
[2019-11-06 22:14:51,446 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:14:51,447 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:51,447 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:14:51,447 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:14:51,448 INFO  L87              Difference]: Start difference. First operand 1954 states and 2902 transitions. Second operand 4 states.
[2019-11-06 22:14:54,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:14:54,014 INFO  L93              Difference]: Finished difference Result 5816 states and 8636 transitions.
[2019-11-06 22:14:54,014 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:14:54,015 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 149
[2019-11-06 22:14:54,015 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:14:54,033 INFO  L225             Difference]: With dead ends: 5816
[2019-11-06 22:14:54,033 INFO  L226             Difference]: Without dead ends: 3894
[2019-11-06 22:14:54,038 INFO  L630         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
[2019-11-06 22:14:54,043 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3894 states.
[2019-11-06 22:14:54,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1956.
[2019-11-06 22:14:54,133 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1956 states.
[2019-11-06 22:14:54,139 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2904 transitions.
[2019-11-06 22:14:54,140 INFO  L78                 Accepts]: Start accepts. Automaton has 1956 states and 2904 transitions. Word has length 149
[2019-11-06 22:14:54,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:14:54,140 INFO  L462      AbstractCegarLoop]: Abstraction has 1956 states and 2904 transitions.
[2019-11-06 22:14:54,140 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:14:54,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 1956 states and 2904 transitions.
[2019-11-06 22:14:54,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2019-11-06 22:14:54,145 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:54,145 INFO  L410         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]
[2019-11-06 22:14:54,145 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:54,146 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:54,146 INFO  L82        PathProgramCache]: Analyzing trace with hash 196497924, now seen corresponding path program 1 times
[2019-11-06 22:14:54,146 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:54,147 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428754532]
[2019-11-06 22:14:54,147 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:54,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:54,591 WARN  L191               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:54,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:54,634 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:54,634 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428754532]
[2019-11-06 22:14:54,635 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:54,635 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:14:54,635 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865173501]
[2019-11-06 22:14:54,636 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:14:54,636 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:54,636 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:14:54,636 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:14:54,636 INFO  L87              Difference]: Start difference. First operand 1956 states and 2904 transitions. Second operand 5 states.
[2019-11-06 22:14:57,674 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:14:57,675 INFO  L93              Difference]: Finished difference Result 5698 states and 8436 transitions.
[2019-11-06 22:14:57,675 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:14:57,675 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 150
[2019-11-06 22:14:57,676 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:14:57,697 INFO  L225             Difference]: With dead ends: 5698
[2019-11-06 22:14:57,698 INFO  L226             Difference]: Without dead ends: 3776
[2019-11-06 22:14:57,703 INFO  L630         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
[2019-11-06 22:14:57,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3776 states.
[2019-11-06 22:14:57,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3728.
[2019-11-06 22:14:57,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3728 states.
[2019-11-06 22:14:57,899 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5493 transitions.
[2019-11-06 22:14:57,900 INFO  L78                 Accepts]: Start accepts. Automaton has 3728 states and 5493 transitions. Word has length 150
[2019-11-06 22:14:57,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:14:57,901 INFO  L462      AbstractCegarLoop]: Abstraction has 3728 states and 5493 transitions.
[2019-11-06 22:14:57,901 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:14:57,901 INFO  L276                IsEmpty]: Start isEmpty. Operand 3728 states and 5493 transitions.
[2019-11-06 22:14:57,908 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2019-11-06 22:14:57,908 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:14:57,908 INFO  L410         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]
[2019-11-06 22:14:57,909 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:14:57,909 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:14:57,909 INFO  L82        PathProgramCache]: Analyzing trace with hash 790157398, now seen corresponding path program 1 times
[2019-11-06 22:14:57,909 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:14:57,910 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919926395]
[2019-11-06 22:14:57,910 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:14:57,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:58,299 WARN  L191               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:14:58,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:14:58,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:14:58,336 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919926395]
[2019-11-06 22:14:58,338 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:14:58,338 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:14:58,339 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750867490]
[2019-11-06 22:14:58,339 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:14:58,340 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:14:58,340 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:14:58,340 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:14:58,340 INFO  L87              Difference]: Start difference. First operand 3728 states and 5493 transitions. Second operand 4 states.
[2019-11-06 22:15:01,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:15:01,843 INFO  L93              Difference]: Finished difference Result 11100 states and 16351 transitions.
[2019-11-06 22:15:01,844 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:15:01,844 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 151
[2019-11-06 22:15:01,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:15:01,878 INFO  L225             Difference]: With dead ends: 11100
[2019-11-06 22:15:01,878 INFO  L226             Difference]: Without dead ends: 7420
[2019-11-06 22:15:01,887 INFO  L630         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
[2019-11-06 22:15:01,896 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7420 states.
[2019-11-06 22:15:02,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 3732.
[2019-11-06 22:15:02,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3732 states.
[2019-11-06 22:15:02,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5497 transitions.
[2019-11-06 22:15:02,146 INFO  L78                 Accepts]: Start accepts. Automaton has 3732 states and 5497 transitions. Word has length 151
[2019-11-06 22:15:02,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:15:02,147 INFO  L462      AbstractCegarLoop]: Abstraction has 3732 states and 5497 transitions.
[2019-11-06 22:15:02,147 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:15:02,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 3732 states and 5497 transitions.
[2019-11-06 22:15:02,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-11-06 22:15:02,155 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:15:02,156 INFO  L410         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]
[2019-11-06 22:15:02,156 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:15:02,156 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:15:02,157 INFO  L82        PathProgramCache]: Analyzing trace with hash -126702401, now seen corresponding path program 1 times
[2019-11-06 22:15:02,157 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:15:02,157 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884824287]
[2019-11-06 22:15:02,157 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:15:02,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:02,496 WARN  L191               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:15:02,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:02,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:15:02,537 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884824287]
[2019-11-06 22:15:02,537 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:15:02,537 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:15:02,537 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984025207]
[2019-11-06 22:15:02,538 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:15:02,538 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:15:02,538 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:15:02,538 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:15:02,539 INFO  L87              Difference]: Start difference. First operand 3732 states and 5497 transitions. Second operand 4 states.
[2019-11-06 22:15:05,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:15:05,744 INFO  L93              Difference]: Finished difference Result 10632 states and 15663 transitions.
[2019-11-06 22:15:05,744 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:15:05,744 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 152
[2019-11-06 22:15:05,744 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:15:05,775 INFO  L225             Difference]: With dead ends: 10632
[2019-11-06 22:15:05,775 INFO  L226             Difference]: Without dead ends: 7212
[2019-11-06 22:15:05,783 INFO  L630         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
[2019-11-06 22:15:05,791 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7212 states.
[2019-11-06 22:15:06,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 7164.
[2019-11-06 22:15:06,129 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7164 states.
[2019-11-06 22:15:06,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10459 transitions.
[2019-11-06 22:15:06,142 INFO  L78                 Accepts]: Start accepts. Automaton has 7164 states and 10459 transitions. Word has length 152
[2019-11-06 22:15:06,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:15:06,142 INFO  L462      AbstractCegarLoop]: Abstraction has 7164 states and 10459 transitions.
[2019-11-06 22:15:06,142 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:15:06,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 7164 states and 10459 transitions.
[2019-11-06 22:15:06,153 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-11-06 22:15:06,154 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:15:06,154 INFO  L410         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]
[2019-11-06 22:15:06,154 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:15:06,154 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:15:06,155 INFO  L82        PathProgramCache]: Analyzing trace with hash -1183043556, now seen corresponding path program 1 times
[2019-11-06 22:15:06,155 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:15:06,155 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924741192]
[2019-11-06 22:15:06,155 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:15:06,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:06,602 WARN  L191               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:15:06,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:06,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:15:06,636 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924741192]
[2019-11-06 22:15:06,636 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:15:06,636 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:15:06,637 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329952591]
[2019-11-06 22:15:06,637 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:15:06,637 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:15:06,638 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:15:06,638 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:15:06,638 INFO  L87              Difference]: Start difference. First operand 7164 states and 10459 transitions. Second operand 5 states.
[2019-11-06 22:15:08,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:15:08,772 INFO  L93              Difference]: Finished difference Result 14748 states and 21411 transitions.
[2019-11-06 22:15:08,772 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:15:08,772 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 152
[2019-11-06 22:15:08,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:15:08,788 INFO  L225             Difference]: With dead ends: 14748
[2019-11-06 22:15:08,788 INFO  L226             Difference]: Without dead ends: 7444
[2019-11-06 22:15:08,800 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:15:08,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7444 states.
[2019-11-06 22:15:09,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7396.
[2019-11-06 22:15:09,073 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7396 states.
[2019-11-06 22:15:09,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7396 states to 7396 states and 10665 transitions.
[2019-11-06 22:15:09,084 INFO  L78                 Accepts]: Start accepts. Automaton has 7396 states and 10665 transitions. Word has length 152
[2019-11-06 22:15:09,085 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:15:09,085 INFO  L462      AbstractCegarLoop]: Abstraction has 7396 states and 10665 transitions.
[2019-11-06 22:15:09,085 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:15:09,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 7396 states and 10665 transitions.
[2019-11-06 22:15:09,097 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-11-06 22:15:09,097 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:15:09,097 INFO  L410         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]
[2019-11-06 22:15:09,097 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:15:09,098 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:15:09,098 INFO  L82        PathProgramCache]: Analyzing trace with hash 1596344069, now seen corresponding path program 1 times
[2019-11-06 22:15:09,098 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:15:09,098 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876098620]
[2019-11-06 22:15:09,098 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:15:09,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:09,514 WARN  L191               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-11-06 22:15:09,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:15:09,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:15:09,555 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876098620]
[2019-11-06 22:15:09,556 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:15:09,556 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:15:09,556 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007374823]
[2019-11-06 22:15:09,556 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:15:09,557 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:15:09,557 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:15:09,557 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:15:09,557 INFO  L87              Difference]: Start difference. First operand 7396 states and 10665 transitions. Second operand 5 states.