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_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:44:11,607 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-10-14 23:44:11,634 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 23:44:11,636 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-10-14 23:44:11,667 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 23:44:11,693 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:44:11,693 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:44:11,695 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:44:11,695 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:44:11,695 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:44:11,696 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:44:11,696 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:44:11,696 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:44:11,696 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:44:11,696 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:44:11,697 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:44:11,698 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:44:11,698 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:44:11,698 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:44:11,698 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:44:11,699 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:44:11,699 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:44:11,699 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:44:11,699 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:44:11,699 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:44:11,700 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:44:11,700 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:44:11,700 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:44:11,700 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:44:11,700 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:44:11,701 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:44:11,701 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:44:11,701 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:44:11,701 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:44:11,972 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:44:11,982 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:44:11,988 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:44:11,989 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:44:11,989 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:44:11,990 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:12,058 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699223ae9/bd0b6244fae3472e90cdaf15d86d82bb/FLAG76c5270fd
[2019-10-14 23:44:12,558 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:44:12,559 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:12,573 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699223ae9/bd0b6244fae3472e90cdaf15d86d82bb/FLAG76c5270fd
[2019-10-14 23:44:12,864 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699223ae9/bd0b6244fae3472e90cdaf15d86d82bb
[2019-10-14 23:44:12,874 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:44:12,875 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:44:12,877 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:12,877 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:44:12,880 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:44:12,881 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:12" (1/1) ...
[2019-10-14 23:44:12,884 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a95ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:12, skipping insertion in model container
[2019-10-14 23:44:12,884 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:12" (1/1) ...
[2019-10-14 23:44:12,891 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:44:12,971 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:44:13,571 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:13,584 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:44:14,016 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:14,038 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:44:14,039 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14 WrapperNode
[2019-10-14 23:44:14,040 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:14,041 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:44:14,041 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:44:14,041 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:44:14,055 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,055 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,074 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,074 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,122 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,152 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,163 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (1/1) ...
[2019-10-14 23:44:14,174 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:44:14,174 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:44:14,174 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:44:14,175 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:44:14,180 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (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 23:44:14,258 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:44:14,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:44:14,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:44:14,259 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:44:14,259 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:44:14,260 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-10-14 23:44:14,260 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 23:44:14,261 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-14 23:44:14,261 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 23:44:14,261 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-14 23:44:14,261 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-14 23:44:14,262 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-14 23:44:14,262 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-14 23:44:14,262 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-14 23:44:14,263 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-14 23:44:14,264 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-14 23:44:14,265 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:44:14,266 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:44:14,266 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:44:15,908 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:44:15,908 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-14 23:44:15,910 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:15 BoogieIcfgContainer
[2019-10-14 23:44:15,911 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:44:15,912 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:44:15,912 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:44:15,915 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:44:15,915 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:12" (1/3) ...
[2019-10-14 23:44:15,916 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be13acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:15, skipping insertion in model container
[2019-10-14 23:44:15,916 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:14" (2/3) ...
[2019-10-14 23:44:15,916 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be13acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:15, skipping insertion in model container
[2019-10-14 23:44:15,917 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:15" (3/3) ...
[2019-10-14 23:44:15,919 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:15,928 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:44:15,936 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-14 23:44:15,946 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-14 23:44:15,975 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:44:15,976 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:44:15,976 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:44:15,976 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:44:15,976 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:44:15,976 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:44:15,977 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:44:15,977 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:44:16,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 382 states.
[2019-10-14 23:44:16,019 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-10-14 23:44:16,019 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:16,021 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]
[2019-10-14 23:44:16,022 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:16,027 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:16,027 INFO  L82        PathProgramCache]: Analyzing trace with hash -242885028, now seen corresponding path program 1 times
[2019-10-14 23:44:16,035 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:16,035 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333610648]
[2019-10-14 23:44:16,035 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:16,035 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:16,035 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:16,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:17,007 WARN  L191               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:17,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:17,090 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 23:44:17,091 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333610648]
[2019-10-14 23:44:17,092 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:17,092 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:17,093 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982753842]
[2019-10-14 23:44:17,099 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:17,099 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:17,113 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:17,113 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:17,116 INFO  L87              Difference]: Start difference. First operand 382 states. Second operand 4 states.
[2019-10-14 23:44:17,464 WARN  L191               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-10-14 23:44:19,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:19,700 INFO  L93              Difference]: Finished difference Result 692 states and 1229 transitions.
[2019-10-14 23:44:19,700 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:19,702 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2019-10-14 23:44:19,703 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:19,722 INFO  L225             Difference]: With dead ends: 692
[2019-10-14 23:44:19,722 INFO  L226             Difference]: Without dead ends: 537
[2019-10-14 23:44:19,727 INFO  L600         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
[2019-10-14 23:44:19,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 537 states.
[2019-10-14 23:44:19,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 535.
[2019-10-14 23:44:19,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 535 states.
[2019-10-14 23:44:19,814 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 778 transitions.
[2019-10-14 23:44:19,815 INFO  L78                 Accepts]: Start accepts. Automaton has 535 states and 778 transitions. Word has length 142
[2019-10-14 23:44:19,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:19,816 INFO  L462      AbstractCegarLoop]: Abstraction has 535 states and 778 transitions.
[2019-10-14 23:44:19,816 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:19,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 535 states and 778 transitions.
[2019-10-14 23:44:19,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-10-14 23:44:19,821 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:19,821 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]
[2019-10-14 23:44:19,822 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:19,822 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:19,822 INFO  L82        PathProgramCache]: Analyzing trace with hash 1296834716, now seen corresponding path program 1 times
[2019-10-14 23:44:19,823 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:19,823 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837714277]
[2019-10-14 23:44:19,823 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:19,823 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:19,823 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:19,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:20,226 WARN  L191               SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:20,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:20,289 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 23:44:20,290 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837714277]
[2019-10-14 23:44:20,290 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:20,290 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:20,290 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727860463]
[2019-10-14 23:44:20,292 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:20,292 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:20,293 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:20,293 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:20,293 INFO  L87              Difference]: Start difference. First operand 535 states and 778 transitions. Second operand 4 states.
[2019-10-14 23:44:20,546 WARN  L191               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-10-14 23:44:22,273 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:22,273 INFO  L93              Difference]: Finished difference Result 1070 states and 1613 transitions.
[2019-10-14 23:44:22,274 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:22,274 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2019-10-14 23:44:22,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:22,281 INFO  L225             Difference]: With dead ends: 1070
[2019-10-14 23:44:22,281 INFO  L226             Difference]: Without dead ends: 853
[2019-10-14 23:44:22,284 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:22,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2019-10-14 23:44:22,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 851.
[2019-10-14 23:44:22,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 851 states.
[2019-10-14 23:44:22,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1260 transitions.
[2019-10-14 23:44:22,332 INFO  L78                 Accepts]: Start accepts. Automaton has 851 states and 1260 transitions. Word has length 142
[2019-10-14 23:44:22,333 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:22,333 INFO  L462      AbstractCegarLoop]: Abstraction has 851 states and 1260 transitions.
[2019-10-14 23:44:22,333 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:22,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 851 states and 1260 transitions.
[2019-10-14 23:44:22,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-10-14 23:44:22,337 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:22,337 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]
[2019-10-14 23:44:22,338 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:22,338 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:22,338 INFO  L82        PathProgramCache]: Analyzing trace with hash 156483868, now seen corresponding path program 1 times
[2019-10-14 23:44:22,339 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:22,339 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136157093]
[2019-10-14 23:44:22,339 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:22,339 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:22,339 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:22,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:22,925 WARN  L191               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:22,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:22,974 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 23:44:22,975 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136157093]
[2019-10-14 23:44:22,983 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:22,984 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:22,984 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245081380]
[2019-10-14 23:44:22,985 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:22,985 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:22,986 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:22,986 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:22,986 INFO  L87              Difference]: Start difference. First operand 851 states and 1260 transitions. Second operand 5 states.
[2019-10-14 23:44:25,679 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:25,679 INFO  L93              Difference]: Finished difference Result 2496 states and 3689 transitions.
[2019-10-14 23:44:25,680 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:25,680 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 142
[2019-10-14 23:44:25,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:25,689 INFO  L225             Difference]: With dead ends: 2496
[2019-10-14 23:44:25,690 INFO  L226             Difference]: Without dead ends: 1658
[2019-10-14 23:44:25,695 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 23:44:25,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1658 states.
[2019-10-14 23:44:25,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1630.
[2019-10-14 23:44:25,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1630 states.
[2019-10-14 23:44:25,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2403 transitions.
[2019-10-14 23:44:25,768 INFO  L78                 Accepts]: Start accepts. Automaton has 1630 states and 2403 transitions. Word has length 142
[2019-10-14 23:44:25,769 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:25,769 INFO  L462      AbstractCegarLoop]: Abstraction has 1630 states and 2403 transitions.
[2019-10-14 23:44:25,769 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:44:25,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 1630 states and 2403 transitions.
[2019-10-14 23:44:25,773 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2019-10-14 23:44:25,774 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:25,775 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]
[2019-10-14 23:44:25,775 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:25,775 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:25,775 INFO  L82        PathProgramCache]: Analyzing trace with hash 1506911746, now seen corresponding path program 1 times
[2019-10-14 23:44:25,776 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:25,776 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284036038]
[2019-10-14 23:44:25,776 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:25,776 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:25,776 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:25,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:26,144 WARN  L191               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:26,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:26,187 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 23:44:26,188 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284036038]
[2019-10-14 23:44:26,188 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:26,188 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:26,189 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084082236]
[2019-10-14 23:44:26,189 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:26,190 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:26,190 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:26,190 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:26,190 INFO  L87              Difference]: Start difference. First operand 1630 states and 2403 transitions. Second operand 4 states.
[2019-10-14 23:44:28,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:28,949 INFO  L93              Difference]: Finished difference Result 4844 states and 7139 transitions.
[2019-10-14 23:44:28,950 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:44:28,950 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2019-10-14 23:44:28,950 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:28,969 INFO  L225             Difference]: With dead ends: 4844
[2019-10-14 23:44:28,969 INFO  L226             Difference]: Without dead ends: 3246
[2019-10-14 23:44:28,973 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 23:44:28,978 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3246 states.
[2019-10-14 23:44:29,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 1632.
[2019-10-14 23:44:29,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1632 states.
[2019-10-14 23:44:29,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2405 transitions.
[2019-10-14 23:44:29,151 INFO  L78                 Accepts]: Start accepts. Automaton has 1632 states and 2405 transitions. Word has length 143
[2019-10-14 23:44:29,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:29,152 INFO  L462      AbstractCegarLoop]: Abstraction has 1632 states and 2405 transitions.
[2019-10-14 23:44:29,152 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:29,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 1632 states and 2405 transitions.
[2019-10-14 23:44:29,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2019-10-14 23:44:29,156 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:29,156 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]
[2019-10-14 23:44:29,156 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:29,157 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:29,157 INFO  L82        PathProgramCache]: Analyzing trace with hash -705286279, now seen corresponding path program 1 times
[2019-10-14 23:44:29,157 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:29,158 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938404896]
[2019-10-14 23:44:29,158 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:29,158 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:29,158 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:29,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:29,460 WARN  L191               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:29,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:29,519 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 23:44:29,521 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938404896]
[2019-10-14 23:44:29,521 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:29,522 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:29,522 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281694771]
[2019-10-14 23:44:29,522 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:29,523 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:29,523 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:29,523 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:29,523 INFO  L87              Difference]: Start difference. First operand 1632 states and 2405 transitions. Second operand 4 states.
[2019-10-14 23:44:31,675 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:31,676 INFO  L93              Difference]: Finished difference Result 4281 states and 6311 transitions.
[2019-10-14 23:44:31,676 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:44:31,676 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 144
[2019-10-14 23:44:31,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:31,689 INFO  L225             Difference]: With dead ends: 4281
[2019-10-14 23:44:31,690 INFO  L226             Difference]: Without dead ends: 2829
[2019-10-14 23:44:31,693 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 23:44:31,696 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2829 states.
[2019-10-14 23:44:31,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2801.
[2019-10-14 23:44:31,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2801 states.
[2019-10-14 23:44:31,809 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 4081 transitions.
[2019-10-14 23:44:31,810 INFO  L78                 Accepts]: Start accepts. Automaton has 2801 states and 4081 transitions. Word has length 144
[2019-10-14 23:44:31,810 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:31,810 INFO  L462      AbstractCegarLoop]: Abstraction has 2801 states and 4081 transitions.
[2019-10-14 23:44:31,810 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:31,810 INFO  L276                IsEmpty]: Start isEmpty. Operand 2801 states and 4081 transitions.
[2019-10-14 23:44:31,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2019-10-14 23:44:31,815 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:31,815 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]
[2019-10-14 23:44:31,816 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:31,816 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:31,816 INFO  L82        PathProgramCache]: Analyzing trace with hash 2069030422, now seen corresponding path program 1 times
[2019-10-14 23:44:31,816 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:31,817 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900247258]
[2019-10-14 23:44:31,817 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:31,817 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:31,817 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:31,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:32,249 WARN  L191               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:32,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:32,295 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 23:44:32,296 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900247258]
[2019-10-14 23:44:32,297 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:32,301 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:32,301 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134674320]
[2019-10-14 23:44:32,302 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:32,303 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:32,303 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:32,303 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:32,303 INFO  L87              Difference]: Start difference. First operand 2801 states and 4081 transitions. Second operand 5 states.
[2019-10-14 23:44:33,753 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:33,754 INFO  L93              Difference]: Finished difference Result 5024 states and 7338 transitions.
[2019-10-14 23:44:33,754 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:33,756 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 144
[2019-10-14 23:44:33,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:33,767 INFO  L225             Difference]: With dead ends: 5024
[2019-10-14 23:44:33,767 INFO  L226             Difference]: Without dead ends: 2393
[2019-10-14 23:44:33,773 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 23:44:33,776 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2393 states.
[2019-10-14 23:44:33,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393.
[2019-10-14 23:44:33,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2393 states.
[2019-10-14 23:44:33,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3482 transitions.
[2019-10-14 23:44:33,877 INFO  L78                 Accepts]: Start accepts. Automaton has 2393 states and 3482 transitions. Word has length 144
[2019-10-14 23:44:33,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:33,878 INFO  L462      AbstractCegarLoop]: Abstraction has 2393 states and 3482 transitions.
[2019-10-14 23:44:33,878 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:44:33,878 INFO  L276                IsEmpty]: Start isEmpty. Operand 2393 states and 3482 transitions.
[2019-10-14 23:44:33,882 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-14 23:44:33,883 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:33,883 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]
[2019-10-14 23:44:33,883 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:33,884 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:33,884 INFO  L82        PathProgramCache]: Analyzing trace with hash -839538967, now seen corresponding path program 1 times
[2019-10-14 23:44:33,885 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:33,885 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210803188]
[2019-10-14 23:44:33,885 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:33,885 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:33,885 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:33,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:34,479 WARN  L191               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:34,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:34,556 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 23:44:34,557 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210803188]
[2019-10-14 23:44:34,557 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:34,557 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2019-10-14 23:44:34,557 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326734451]
[2019-10-14 23:44:34,558 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 14 states
[2019-10-14 23:44:34,558 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:34,558 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2019-10-14 23:44:34,559 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182
[2019-10-14 23:44:34,559 INFO  L87              Difference]: Start difference. First operand 2393 states and 3482 transitions. Second operand 14 states.
[2019-10-14 23:44:34,881 WARN  L191               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 200
[2019-10-14 23:44:40,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:40,957 INFO  L93              Difference]: Finished difference Result 10628 states and 16267 transitions.
[2019-10-14 23:44:40,958 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2019-10-14 23:44:40,958 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 147
[2019-10-14 23:44:40,958 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:40,992 INFO  L225             Difference]: With dead ends: 10628
[2019-10-14 23:44:40,993 INFO  L226             Difference]: Without dead ends: 8437
[2019-10-14 23:44:40,999 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=372, Invalid=960, Unknown=0, NotChecked=0, Total=1332
[2019-10-14 23:44:41,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8437 states.
[2019-10-14 23:44:41,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 5241.
[2019-10-14 23:44:41,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5241 states.
[2019-10-14 23:44:41,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 7870 transitions.
[2019-10-14 23:44:41,339 INFO  L78                 Accepts]: Start accepts. Automaton has 5241 states and 7870 transitions. Word has length 147
[2019-10-14 23:44:41,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:41,340 INFO  L462      AbstractCegarLoop]: Abstraction has 5241 states and 7870 transitions.
[2019-10-14 23:44:41,340 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2019-10-14 23:44:41,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 5241 states and 7870 transitions.
[2019-10-14 23:44:41,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-14 23:44:41,346 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:41,347 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]
[2019-10-14 23:44:41,347 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:41,347 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:41,347 INFO  L82        PathProgramCache]: Analyzing trace with hash 1983851261, now seen corresponding path program 1 times
[2019-10-14 23:44:41,348 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:41,348 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575364322]
[2019-10-14 23:44:41,348 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:41,348 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:41,348 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:41,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:41,723 WARN  L191               SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:41,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:41,767 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 23:44:41,767 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575364322]
[2019-10-14 23:44:41,767 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:41,768 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:41,768 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141566182]
[2019-10-14 23:44:41,768 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:44:41,768 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:41,769 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:44:41,769 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:44:41,769 INFO  L87              Difference]: Start difference. First operand 5241 states and 7870 transitions. Second operand 6 states.
[2019-10-14 23:44:42,025 WARN  L191               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-14 23:44:43,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:43,909 INFO  L93              Difference]: Finished difference Result 7383 states and 11193 transitions.
[2019-10-14 23:44:43,910 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-10-14 23:44:43,910 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 147
[2019-10-14 23:44:43,911 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:43,922 INFO  L225             Difference]: With dead ends: 7383
[2019-10-14 23:44:43,922 INFO  L226             Difference]: Without dead ends: 2962
[2019-10-14 23:44:43,930 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2019-10-14 23:44:43,934 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2962 states.
[2019-10-14 23:44:44,042 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2393.
[2019-10-14 23:44:44,043 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2393 states.
[2019-10-14 23:44:44,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3467 transitions.
[2019-10-14 23:44:44,048 INFO  L78                 Accepts]: Start accepts. Automaton has 2393 states and 3467 transitions. Word has length 147
[2019-10-14 23:44:44,048 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:44,048 INFO  L462      AbstractCegarLoop]: Abstraction has 2393 states and 3467 transitions.
[2019-10-14 23:44:44,049 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:44:44,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 2393 states and 3467 transitions.
[2019-10-14 23:44:44,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-14 23:44:44,053 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:44,053 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]
[2019-10-14 23:44:44,053 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:44,054 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:44,054 INFO  L82        PathProgramCache]: Analyzing trace with hash 1902905006, now seen corresponding path program 1 times
[2019-10-14 23:44:44,054 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:44,054 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130210641]
[2019-10-14 23:44:44,055 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:44,055 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:44,055 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:44,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:44,454 WARN  L191               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:44,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:44,505 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 23:44:44,506 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130210641]
[2019-10-14 23:44:44,506 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:44,506 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2019-10-14 23:44:44,506 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517495076]
[2019-10-14 23:44:44,507 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-14 23:44:44,507 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:44,507 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-14 23:44:44,507 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2019-10-14 23:44:44,508 INFO  L87              Difference]: Start difference. First operand 2393 states and 3467 transitions. Second operand 10 states.
[2019-10-14 23:44:44,816 WARN  L191               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-14 23:44:47,270 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:47,270 INFO  L93              Difference]: Finished difference Result 8933 states and 13661 transitions.
[2019-10-14 23:44:47,270 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2019-10-14 23:44:47,270 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 147
[2019-10-14 23:44:47,271 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:47,297 INFO  L225             Difference]: With dead ends: 8933
[2019-10-14 23:44:47,297 INFO  L226             Difference]: Without dead ends: 6742
[2019-10-14 23:44:47,302 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420
[2019-10-14 23:44:47,308 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6742 states.
[2019-10-14 23:44:47,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 4124.
[2019-10-14 23:44:47,543 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4124 states.
[2019-10-14 23:44:47,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 6152 transitions.
[2019-10-14 23:44:47,548 INFO  L78                 Accepts]: Start accepts. Automaton has 4124 states and 6152 transitions. Word has length 147
[2019-10-14 23:44:47,548 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:47,548 INFO  L462      AbstractCegarLoop]: Abstraction has 4124 states and 6152 transitions.
[2019-10-14 23:44:47,548 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2019-10-14 23:44:47,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 4124 states and 6152 transitions.
[2019-10-14 23:44:47,552 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-14 23:44:47,553 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:47,553 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]
[2019-10-14 23:44:47,553 INFO  L410      AbstractCegarLoop]: === Iteration 10 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:47,553 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:47,553 INFO  L82        PathProgramCache]: Analyzing trace with hash 431327938, now seen corresponding path program 1 times
[2019-10-14 23:44:47,554 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:47,554 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352189424]
[2019-10-14 23:44:47,554 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:47,554 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:47,554 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:47,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:47,983 WARN  L191               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:47,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:48,021 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 23:44:48,022 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352189424]
[2019-10-14 23:44:48,024 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:48,024 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:48,024 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208663764]
[2019-10-14 23:44:48,025 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:48,025 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:48,025 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:48,025 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:48,025 INFO  L87              Difference]: Start difference. First operand 4124 states and 6152 transitions. Second operand 5 states.