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


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This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:44:51,543 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-10-14 23:44:51,566 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-10-14 23:44:51,592 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 23:44:51,593 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
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[2019-10-14 23:44:51,624 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 23:44:51,625 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 23:44:51,641 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:44:51,642 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:44:51,643 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:44:51,643 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:44:51,643 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:44:51,643 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:44:51,644 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:44:51,644 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:44:51,644 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:44:51,644 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:44:51,644 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:44:51,645 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:44:51,645 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:44:51,645 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:44:51,645 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:44:51,645 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:44:51,646 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:44:51,646 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:44:51,646 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:44:51,646 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:44:51,646 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:44:51,647 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:44:51,647 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:44:51,647 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:44:51,647 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:44:51,647 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:44:51,648 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:44:51,648 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:44:51,648 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:44:51,905 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:44:51,923 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:44:51,927 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:44:51,929 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:44:51,929 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:44:51,929 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:51,997 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ade43ae/06e91f6dd37e469aaacdefbd9fce6c11/FLAGb037591fc
[2019-10-14 23:44:52,561 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:44:52,562 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:52,589 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ade43ae/06e91f6dd37e469aaacdefbd9fce6c11/FLAGb037591fc
[2019-10-14 23:44:52,819 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ade43ae/06e91f6dd37e469aaacdefbd9fce6c11
[2019-10-14 23:44:52,831 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:44:52,833 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:44:52,836 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:52,836 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:44:52,839 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:44:52,840 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:52" (1/1) ...
[2019-10-14 23:44:52,843 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac13daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52, skipping insertion in model container
[2019-10-14 23:44:52,843 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:52" (1/1) ...
[2019-10-14 23:44:52,852 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:44:52,930 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:44:53,624 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:53,653 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:44:54,011 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:54,032 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:44:54,032 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54 WrapperNode
[2019-10-14 23:44:54,032 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:54,033 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:44:54,033 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:44:54,033 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:44:54,043 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,044 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,064 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,064 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,120 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,150 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,161 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ...
[2019-10-14 23:44:54,170 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:44:54,170 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:44:54,170 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:44:54,171 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:44:54,172 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (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 23:44:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:44:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:44:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:44:54,254 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:44:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:44:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-10-14 23:44:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 23:44:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-14 23:44:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 23:44:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-14 23:44:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-14 23:44:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-14 23:44:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-14 23:44:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-14 23:44:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-14 23:44:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-14 23:44:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:44:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:44:54,263 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:44:55,983 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:44:55,983 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-14 23:44:55,986 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:55 BoogieIcfgContainer
[2019-10-14 23:44:55,986 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:44:55,990 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:44:55,990 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:44:55,993 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:44:55,993 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:52" (1/3) ...
[2019-10-14 23:44:55,995 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7975d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:55, skipping insertion in model container
[2019-10-14 23:44:55,995 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (2/3) ...
[2019-10-14 23:44:55,996 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7975d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:55, skipping insertion in model container
[2019-10-14 23:44:55,997 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:55" (3/3) ...
[2019-10-14 23:44:56,005 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:56,016 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:44:56,044 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-14 23:44:56,058 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-14 23:44:56,102 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:44:56,102 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:44:56,102 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:44:56,103 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:44:56,103 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:44:56,103 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:44:56,103 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:44:56,103 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:44:56,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 423 states.
[2019-10-14 23:44:56,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:44:56,157 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:56,158 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:44:56,159 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:56,164 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:56,164 INFO  L82        PathProgramCache]: Analyzing trace with hash 431419903, now seen corresponding path program 1 times
[2019-10-14 23:44:56,170 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:56,171 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921350922]
[2019-10-14 23:44:56,171 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:56,171 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:56,172 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:56,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:57,102 WARN  L191               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:44:57,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:57,190 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 23:44:57,190 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921350922]
[2019-10-14 23:44:57,191 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:57,192 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:57,192 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322279718]
[2019-10-14 23:44:57,196 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:57,197 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:57,210 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:57,211 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:57,213 INFO  L87              Difference]: Start difference. First operand 423 states. Second operand 4 states.
[2019-10-14 23:44:57,530 WARN  L191               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-10-14 23:45:00,036 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:00,036 INFO  L93              Difference]: Finished difference Result 780 states and 1363 transitions.
[2019-10-14 23:45:00,037 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:00,038 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-14 23:45:00,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:00,061 INFO  L225             Difference]: With dead ends: 780
[2019-10-14 23:45:00,061 INFO  L226             Difference]: Without dead ends: 620
[2019-10-14 23:45:00,069 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 23:45:00,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 620 states.
[2019-10-14 23:45:00,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 618.
[2019-10-14 23:45:00,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 618 states.
[2019-10-14 23:45:00,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 908 transitions.
[2019-10-14 23:45:00,222 INFO  L78                 Accepts]: Start accepts. Automaton has 618 states and 908 transitions. Word has length 148
[2019-10-14 23:45:00,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:00,223 INFO  L462      AbstractCegarLoop]: Abstraction has 618 states and 908 transitions.
[2019-10-14 23:45:00,223 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:00,223 INFO  L276                IsEmpty]: Start isEmpty. Operand 618 states and 908 transitions.
[2019-10-14 23:45:00,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:45:00,228 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:00,229 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:00,229 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:00,229 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:00,230 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285034941, now seen corresponding path program 1 times
[2019-10-14 23:45:00,230 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:00,230 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791501097]
[2019-10-14 23:45:00,230 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:00,231 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:00,231 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:00,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:00,652 WARN  L191               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:00,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:00,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:00,697 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791501097]
[2019-10-14 23:45:00,697 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:00,697 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:00,698 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928354379]
[2019-10-14 23:45:00,700 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:00,700 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:00,700 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:00,700 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:00,701 INFO  L87              Difference]: Start difference. First operand 618 states and 908 transitions. Second operand 4 states.
[2019-10-14 23:45:01,022 WARN  L191               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-10-14 23:45:03,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:03,036 INFO  L93              Difference]: Finished difference Result 1261 states and 1910 transitions.
[2019-10-14 23:45:03,036 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:03,036 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-14 23:45:03,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:03,047 INFO  L225             Difference]: With dead ends: 1261
[2019-10-14 23:45:03,047 INFO  L226             Difference]: Without dead ends: 1038
[2019-10-14 23:45:03,054 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 23:45:03,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1038 states.
[2019-10-14 23:45:03,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1036.
[2019-10-14 23:45:03,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1036 states.
[2019-10-14 23:45:03,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1547 transitions.
[2019-10-14 23:45:03,105 INFO  L78                 Accepts]: Start accepts. Automaton has 1036 states and 1547 transitions. Word has length 148
[2019-10-14 23:45:03,107 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:03,107 INFO  L462      AbstractCegarLoop]: Abstraction has 1036 states and 1547 transitions.
[2019-10-14 23:45:03,108 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:03,108 INFO  L276                IsEmpty]: Start isEmpty. Operand 1036 states and 1547 transitions.
[2019-10-14 23:45:03,114 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:45:03,115 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:03,116 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:03,117 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:03,117 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:03,118 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285373565, now seen corresponding path program 1 times
[2019-10-14 23:45:03,118 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:03,118 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747696744]
[2019-10-14 23:45:03,118 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:03,119 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:03,119 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:03,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:03,662 WARN  L191               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:03,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:03,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:03,739 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747696744]
[2019-10-14 23:45:03,740 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:03,740 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:03,740 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858973037]
[2019-10-14 23:45:03,741 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:03,741 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:03,741 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:03,741 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:03,742 INFO  L87              Difference]: Start difference. First operand 1036 states and 1547 transitions. Second operand 5 states.
[2019-10-14 23:45:06,541 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:06,542 INFO  L93              Difference]: Finished difference Result 3025 states and 4506 transitions.
[2019-10-14 23:45:06,543 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:06,543 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-14 23:45:06,544 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:06,555 INFO  L225             Difference]: With dead ends: 3025
[2019-10-14 23:45:06,555 INFO  L226             Difference]: Without dead ends: 2002
[2019-10-14 23:45:06,558 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:45:06,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2002 states.
[2019-10-14 23:45:06,624 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1954.
[2019-10-14 23:45:06,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1954 states.
[2019-10-14 23:45:06,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2902 transitions.
[2019-10-14 23:45:06,633 INFO  L78                 Accepts]: Start accepts. Automaton has 1954 states and 2902 transitions. Word has length 148
[2019-10-14 23:45:06,633 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:06,633 INFO  L462      AbstractCegarLoop]: Abstraction has 1954 states and 2902 transitions.
[2019-10-14 23:45:06,634 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:06,634 INFO  L276                IsEmpty]: Start isEmpty. Operand 1954 states and 2902 transitions.
[2019-10-14 23:45:06,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2019-10-14 23:45:06,639 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:06,639 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:06,640 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:06,640 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:06,640 INFO  L82        PathProgramCache]: Analyzing trace with hash 2096736245, now seen corresponding path program 1 times
[2019-10-14 23:45:06,640 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:06,641 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810700900]
[2019-10-14 23:45:06,641 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:06,641 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:06,641 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:06,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:07,055 WARN  L191               SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:07,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:07,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:07,105 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810700900]
[2019-10-14 23:45:07,106 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:07,106 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:07,107 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186241137]
[2019-10-14 23:45:07,107 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:07,108 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:07,108 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:07,109 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:07,109 INFO  L87              Difference]: Start difference. First operand 1954 states and 2902 transitions. Second operand 4 states.
[2019-10-14 23:45:09,243 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:09,243 INFO  L93              Difference]: Finished difference Result 5816 states and 8636 transitions.
[2019-10-14 23:45:09,248 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:09,249 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 149
[2019-10-14 23:45:09,249 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:09,267 INFO  L225             Difference]: With dead ends: 5816
[2019-10-14 23:45:09,267 INFO  L226             Difference]: Without dead ends: 3894
[2019-10-14 23:45:09,272 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:09,276 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3894 states.
[2019-10-14 23:45:09,372 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1956.
[2019-10-14 23:45:09,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1956 states.
[2019-10-14 23:45:09,379 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2904 transitions.
[2019-10-14 23:45:09,379 INFO  L78                 Accepts]: Start accepts. Automaton has 1956 states and 2904 transitions. Word has length 149
[2019-10-14 23:45:09,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:09,380 INFO  L462      AbstractCegarLoop]: Abstraction has 1956 states and 2904 transitions.
[2019-10-14 23:45:09,380 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:09,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 1956 states and 2904 transitions.
[2019-10-14 23:45:09,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2019-10-14 23:45:09,385 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:09,385 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:09,386 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:09,386 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:09,386 INFO  L82        PathProgramCache]: Analyzing trace with hash 196497924, now seen corresponding path program 1 times
[2019-10-14 23:45:09,386 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:09,387 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285350646]
[2019-10-14 23:45:09,387 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:09,388 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:09,388 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:09,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:09,852 WARN  L191               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:09,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:09,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:09,898 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285350646]
[2019-10-14 23:45:09,898 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:09,898 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:09,898 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903330292]
[2019-10-14 23:45:09,899 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:09,899 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:09,899 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:09,900 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:09,900 INFO  L87              Difference]: Start difference. First operand 1956 states and 2904 transitions. Second operand 5 states.
[2019-10-14 23:45:12,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:12,637 INFO  L93              Difference]: Finished difference Result 5698 states and 8436 transitions.
[2019-10-14 23:45:12,641 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:12,641 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 150
[2019-10-14 23:45:12,642 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:12,659 INFO  L225             Difference]: With dead ends: 5698
[2019-10-14 23:45:12,659 INFO  L226             Difference]: Without dead ends: 3776
[2019-10-14 23:45:12,663 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:45:12,668 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3776 states.
[2019-10-14 23:45:12,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3728.
[2019-10-14 23:45:12,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3728 states.
[2019-10-14 23:45:12,801 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5493 transitions.
[2019-10-14 23:45:12,802 INFO  L78                 Accepts]: Start accepts. Automaton has 3728 states and 5493 transitions. Word has length 150
[2019-10-14 23:45:12,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:12,802 INFO  L462      AbstractCegarLoop]: Abstraction has 3728 states and 5493 transitions.
[2019-10-14 23:45:12,802 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:12,803 INFO  L276                IsEmpty]: Start isEmpty. Operand 3728 states and 5493 transitions.
[2019-10-14 23:45:12,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2019-10-14 23:45:12,808 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:12,809 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:12,809 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:12,809 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:12,809 INFO  L82        PathProgramCache]: Analyzing trace with hash 790157398, now seen corresponding path program 1 times
[2019-10-14 23:45:12,810 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:12,810 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122515537]
[2019-10-14 23:45:12,810 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:12,810 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:12,810 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:12,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:13,100 WARN  L191               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:13,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:13,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:13,155 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122515537]
[2019-10-14 23:45:13,155 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:13,156 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:13,156 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816915186]
[2019-10-14 23:45:13,156 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:13,157 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:13,157 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:13,157 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:13,157 INFO  L87              Difference]: Start difference. First operand 3728 states and 5493 transitions. Second operand 4 states.
[2019-10-14 23:45:16,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:16,428 INFO  L93              Difference]: Finished difference Result 11100 states and 16351 transitions.
[2019-10-14 23:45:16,428 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:16,428 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 151
[2019-10-14 23:45:16,428 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:16,463 INFO  L225             Difference]: With dead ends: 11100
[2019-10-14 23:45:16,463 INFO  L226             Difference]: Without dead ends: 7420
[2019-10-14 23:45:16,471 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:16,479 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7420 states.
[2019-10-14 23:45:16,647 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 3732.
[2019-10-14 23:45:16,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3732 states.
[2019-10-14 23:45:16,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5497 transitions.
[2019-10-14 23:45:16,658 INFO  L78                 Accepts]: Start accepts. Automaton has 3732 states and 5497 transitions. Word has length 151
[2019-10-14 23:45:16,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:16,658 INFO  L462      AbstractCegarLoop]: Abstraction has 3732 states and 5497 transitions.
[2019-10-14 23:45:16,658 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:16,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 3732 states and 5497 transitions.
[2019-10-14 23:45:16,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-14 23:45:16,667 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:16,668 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:16,668 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:16,668 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:16,669 INFO  L82        PathProgramCache]: Analyzing trace with hash -126702401, now seen corresponding path program 1 times
[2019-10-14 23:45:16,670 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:16,670 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029750349]
[2019-10-14 23:45:16,671 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:16,671 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:16,671 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:16,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:17,036 WARN  L191               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:17,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:17,076 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:17,076 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029750349]
[2019-10-14 23:45:17,076 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:17,077 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:17,077 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735805559]
[2019-10-14 23:45:17,077 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:17,077 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:17,078 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:17,078 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:17,078 INFO  L87              Difference]: Start difference. First operand 3732 states and 5497 transitions. Second operand 4 states.
[2019-10-14 23:45:20,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:20,043 INFO  L93              Difference]: Finished difference Result 10632 states and 15663 transitions.
[2019-10-14 23:45:20,043 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:20,043 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 152
[2019-10-14 23:45:20,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:20,074 INFO  L225             Difference]: With dead ends: 10632
[2019-10-14 23:45:20,074 INFO  L226             Difference]: Without dead ends: 7212
[2019-10-14 23:45:20,081 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:20,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7212 states.
[2019-10-14 23:45:20,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 7164.
[2019-10-14 23:45:20,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7164 states.
[2019-10-14 23:45:20,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10459 transitions.
[2019-10-14 23:45:20,427 INFO  L78                 Accepts]: Start accepts. Automaton has 7164 states and 10459 transitions. Word has length 152
[2019-10-14 23:45:20,427 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:20,428 INFO  L462      AbstractCegarLoop]: Abstraction has 7164 states and 10459 transitions.
[2019-10-14 23:45:20,428 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:20,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 7164 states and 10459 transitions.
[2019-10-14 23:45:20,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-14 23:45:20,443 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:20,444 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:20,444 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:20,444 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:20,445 INFO  L82        PathProgramCache]: Analyzing trace with hash -1183043556, now seen corresponding path program 1 times
[2019-10-14 23:45:20,445 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:20,445 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321357883]
[2019-10-14 23:45:20,445 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:20,446 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:20,446 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:20,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:20,851 WARN  L191               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:20,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:20,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:20,893 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321357883]
[2019-10-14 23:45:20,893 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:20,894 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:20,894 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640123227]
[2019-10-14 23:45:20,894 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:20,894 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:20,895 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:20,895 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:20,895 INFO  L87              Difference]: Start difference. First operand 7164 states and 10459 transitions. Second operand 5 states.
[2019-10-14 23:45:22,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:22,884 INFO  L93              Difference]: Finished difference Result 14748 states and 21411 transitions.
[2019-10-14 23:45:22,884 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:22,885 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 152
[2019-10-14 23:45:22,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:22,900 INFO  L225             Difference]: With dead ends: 14748
[2019-10-14 23:45:22,901 INFO  L226             Difference]: Without dead ends: 7444
[2019-10-14 23:45:22,915 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:22,924 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7444 states.
[2019-10-14 23:45:23,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7396.
[2019-10-14 23:45:23,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7396 states.
[2019-10-14 23:45:23,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7396 states to 7396 states and 10665 transitions.
[2019-10-14 23:45:23,202 INFO  L78                 Accepts]: Start accepts. Automaton has 7396 states and 10665 transitions. Word has length 152
[2019-10-14 23:45:23,202 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:23,202 INFO  L462      AbstractCegarLoop]: Abstraction has 7396 states and 10665 transitions.
[2019-10-14 23:45:23,203 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:23,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 7396 states and 10665 transitions.
[2019-10-14 23:45:23,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-14 23:45:23,214 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:23,214 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:23,214 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:23,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:23,215 INFO  L82        PathProgramCache]: Analyzing trace with hash 1596344069, now seen corresponding path program 1 times
[2019-10-14 23:45:23,215 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:23,215 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707388264]
[2019-10-14 23:45:23,215 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:23,216 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:23,216 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:23,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:23,747 WARN  L191               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:23,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:23,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:23,815 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707388264]
[2019-10-14 23:45:23,816 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:23,816 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:23,816 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319436547]
[2019-10-14 23:45:23,817 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:23,817 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:23,817 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:23,822 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:23,822 INFO  L87              Difference]: Start difference. First operand 7396 states and 10665 transitions. Second operand 5 states.
[2019-10-14 23:45:26,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:26,676 INFO  L93              Difference]: Finished difference Result 10884 states and 15665 transitions.
[2019-10-14 23:45:26,677 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:26,677 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 152
[2019-10-14 23:45:26,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:26,701 INFO  L225             Difference]: With dead ends: 10884
[2019-10-14 23:45:26,702 INFO  L226             Difference]: Without dead ends: 7444
[2019-10-14 23:45:26,708 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:45:26,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7444 states.
[2019-10-14 23:45:26,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7164.
[2019-10-14 23:45:26,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7164 states.
[2019-10-14 23:45:26,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10371 transitions.
[2019-10-14 23:45:26,992 INFO  L78                 Accepts]: Start accepts. Automaton has 7164 states and 10371 transitions. Word has length 152
[2019-10-14 23:45:26,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:26,993 INFO  L462      AbstractCegarLoop]: Abstraction has 7164 states and 10371 transitions.
[2019-10-14 23:45:26,993 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:26,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 7164 states and 10371 transitions.
[2019-10-14 23:45:27,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2019-10-14 23:45:27,004 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:27,004 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:27,004 INFO  L410      AbstractCegarLoop]: === Iteration 10 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:27,004 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:27,005 INFO  L82        PathProgramCache]: Analyzing trace with hash 1051221760, now seen corresponding path program 1 times
[2019-10-14 23:45:27,005 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:27,005 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784969292]
[2019-10-14 23:45:27,005 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:27,005 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:27,006 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:27,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:27,355 WARN  L191               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-14 23:45:27,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:27,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:45:27,397 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784969292]
[2019-10-14 23:45:27,397 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:27,398 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:27,400 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656899764]
[2019-10-14 23:45:27,401 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:27,401 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:27,401 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:27,402 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:27,402 INFO  L87              Difference]: Start difference. First operand 7164 states and 10371 transitions. Second operand 4 states.