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.BOUNDED-6.pals.c.v+lhb-reducer.c


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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:45:48,586 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:45:48,589 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-10-13 19:45:48,610 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-10-13 19:45:48,642 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:45:48,643 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2019-10-13 19:45:48,647 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-10-13 19:45:48,676 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 19:45:48,679 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
[2019-10-13 19:45:48,716 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 19:45:48,717 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:45:48,720 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:45:48,720 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 19:45:48,721 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 19:45:48,721 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:45:48,721 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 19:45:48,721 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 19:45:48,721 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 19:45:48,722 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 19:45:48,722 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:45:48,722 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:45:48,724 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:45:48,724 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 19:45:48,725 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 19:45:48,725 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 19:45:48,725 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:45:48,725 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:45:48,725 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 19:45:48,726 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 19:45:48,726 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 19:45:48,726 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:45:48,726 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:45:48,726 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:45:48,727 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:45:48,727 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 19:45:48,727 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:45:48,727 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:45:48,727 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-13 19:45:49,032 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:45:49,052 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:45:49,057 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:45:49,059 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 19:45:49,059 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 19:45:49,060 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:49,127 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955/FLAG875fe64e0
[2019-10-13 19:45:49,729 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 19:45:49,730 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:49,745 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955/FLAG875fe64e0
[2019-10-13 19:45:49,995 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955
[2019-10-13 19:45:50,004 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:45:50,006 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:45:50,007 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:45:50,007 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:45:50,011 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:45:50,012 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:49" (1/1) ...
[2019-10-13 19:45:50,015 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5d4e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:50, skipping insertion in model container
[2019-10-13 19:45:50,015 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:49" (1/1) ...
[2019-10-13 19:45:50,023 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 19:45:50,106 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:45:50,794 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:45:50,825 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 19:45:51,252 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:45:51,283 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 19:45:51,284 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51 WrapperNode
[2019-10-13 19:45:51,284 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:45:51,285 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:45:51,285 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:45:51,285 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:45:51,300 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,300 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,324 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,325 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,356 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,379 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,385 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ...
[2019-10-13 19:45:51,394 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:45:51,395 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:45:51,395 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:45:51,395 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:45:51,396 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (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
[2019-10-13 19:45:51,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:45:51,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:45:51,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:45:51,471 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:45:51,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-13 19:45:51,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-13 19:45:51,472 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-13 19:45:51,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 19:45:51,472 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-13 19:45:51,473 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-13 19:45:51,473 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-13 19:45:51,473 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-13 19:45:51,473 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-13 19:45:51,473 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-13 19:45:51,474 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-13 19:45:51,474 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:45:51,474 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:45:51,474 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:45:53,359 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:45:53,359 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-13 19:45:53,362 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:53 BoogieIcfgContainer
[2019-10-13 19:45:53,363 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:45:53,365 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:45:53,366 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:45:53,369 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:45:53,369 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:45:49" (1/3) ...
[2019-10-13 19:45:53,371 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b036ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:53, skipping insertion in model container
[2019-10-13 19:45:53,371 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (2/3) ...
[2019-10-13 19:45:53,372 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b036ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:53, skipping insertion in model container
[2019-10-13 19:45:53,372 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:53" (3/3) ...
[2019-10-13 19:45:53,380 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:53,394 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:45:53,417 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-13 19:45:53,432 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-13 19:45:53,476 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:45:53,477 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 19:45:53,477 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:45:53,477 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:45:53,477 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:45:53,477 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 19:45:53,477 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:45:53,478 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:45:53,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 412 states.
[2019-10-13 19:45:53,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-13 19:45:53,551 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:53,552 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]
[2019-10-13 19:45:53,554 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:53,560 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:53,561 INFO  L82        PathProgramCache]: Analyzing trace with hash -1370932676, now seen corresponding path program 1 times
[2019-10-13 19:45:53,571 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:53,571 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433466999]
[2019-10-13 19:45:53,572 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:53,572 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:53,572 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:53,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:54,559 WARN  L191               SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:45:54,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:54,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:54,642 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433466999]
[2019-10-13 19:45:54,643 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:54,643 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:45:54,644 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686321583]
[2019-10-13 19:45:54,650 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:45:54,650 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:54,664 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:45:54,665 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:45:54,668 INFO  L87              Difference]: Start difference. First operand 412 states. Second operand 4 states.
[2019-10-13 19:45:55,050 WARN  L191               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 203
[2019-10-13 19:45:57,877 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:45:57,878 INFO  L93              Difference]: Finished difference Result 754 states and 1320 transitions.
[2019-10-13 19:45:57,878 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:45:57,880 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 146
[2019-10-13 19:45:57,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:45:57,903 INFO  L225             Difference]: With dead ends: 754
[2019-10-13 19:45:57,903 INFO  L226             Difference]: Without dead ends: 593
[2019-10-13 19:45:57,908 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:45:57,926 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 593 states.
[2019-10-13 19:45:57,999 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591.
[2019-10-13 19:45:58,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 591 states.
[2019-10-13 19:45:58,004 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 870 transitions.
[2019-10-13 19:45:58,006 INFO  L78                 Accepts]: Start accepts. Automaton has 591 states and 870 transitions. Word has length 146
[2019-10-13 19:45:58,007 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:45:58,007 INFO  L462      AbstractCegarLoop]: Abstraction has 591 states and 870 transitions.
[2019-10-13 19:45:58,008 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:45:58,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 591 states and 870 transitions.
[2019-10-13 19:45:58,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-13 19:45:58,011 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:58,011 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]
[2019-10-13 19:45:58,012 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:58,012 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:58,012 INFO  L82        PathProgramCache]: Analyzing trace with hash 949503868, now seen corresponding path program 1 times
[2019-10-13 19:45:58,012 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:58,013 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352259625]
[2019-10-13 19:45:58,013 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:58,013 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:58,013 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:58,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:58,516 WARN  L191               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:45:58,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:58,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:58,563 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352259625]
[2019-10-13 19:45:58,564 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:58,564 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:45:58,564 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454306559]
[2019-10-13 19:45:58,566 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:45:58,566 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:58,567 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:45:58,567 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:45:58,567 INFO  L87              Difference]: Start difference. First operand 591 states and 870 transitions. Second operand 4 states.
[2019-10-13 19:45:58,855 WARN  L191               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 203
[2019-10-13 19:46:01,025 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:01,025 INFO  L93              Difference]: Finished difference Result 1192 states and 1809 transitions.
[2019-10-13 19:46:01,026 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:01,026 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 146
[2019-10-13 19:46:01,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:01,039 INFO  L225             Difference]: With dead ends: 1192
[2019-10-13 19:46:01,039 INFO  L226             Difference]: Without dead ends: 979
[2019-10-13 19:46:01,043 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
[2019-10-13 19:46:01,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 979 states.
[2019-10-13 19:46:01,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 977.
[2019-10-13 19:46:01,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 977 states.
[2019-10-13 19:46:01,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1462 transitions.
[2019-10-13 19:46:01,126 INFO  L78                 Accepts]: Start accepts. Automaton has 977 states and 1462 transitions. Word has length 146
[2019-10-13 19:46:01,128 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:01,129 INFO  L462      AbstractCegarLoop]: Abstraction has 977 states and 1462 transitions.
[2019-10-13 19:46:01,129 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:01,129 INFO  L276                IsEmpty]: Start isEmpty. Operand 977 states and 1462 transitions.
[2019-10-13 19:46:01,133 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-13 19:46:01,134 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:01,134 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]
[2019-10-13 19:46:01,135 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:01,136 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:01,136 INFO  L82        PathProgramCache]: Analyzing trace with hash 949165244, now seen corresponding path program 1 times
[2019-10-13 19:46:01,136 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:01,137 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596895045]
[2019-10-13 19:46:01,137 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:01,137 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:01,137 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:01,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:01,971 WARN  L191               SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:01,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:02,024 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:02,024 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596895045]
[2019-10-13 19:46:02,025 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:02,034 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:02,034 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130383699]
[2019-10-13 19:46:02,036 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:02,037 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:02,037 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:02,038 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:02,038 INFO  L87              Difference]: Start difference. First operand 977 states and 1462 transitions. Second operand 5 states.
[2019-10-13 19:46:05,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:05,504 INFO  L93              Difference]: Finished difference Result 2853 states and 4261 transitions.
[2019-10-13 19:46:05,509 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:05,509 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 146
[2019-10-13 19:46:05,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:05,522 INFO  L225             Difference]: With dead ends: 2853
[2019-10-13 19:46:05,522 INFO  L226             Difference]: Without dead ends: 1889
[2019-10-13 19:46:05,527 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 19:46:05,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1889 states.
[2019-10-13 19:46:05,596 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1849.
[2019-10-13 19:46:05,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1849 states.
[2019-10-13 19:46:05,606 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2753 transitions.
[2019-10-13 19:46:05,607 INFO  L78                 Accepts]: Start accepts. Automaton has 1849 states and 2753 transitions. Word has length 146
[2019-10-13 19:46:05,607 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:05,607 INFO  L462      AbstractCegarLoop]: Abstraction has 1849 states and 2753 transitions.
[2019-10-13 19:46:05,607 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:05,607 INFO  L276                IsEmpty]: Start isEmpty. Operand 1849 states and 2753 transitions.
[2019-10-13 19:46:05,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-13 19:46:05,614 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:05,614 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]
[2019-10-13 19:46:05,614 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:05,614 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:05,615 INFO  L82        PathProgramCache]: Analyzing trace with hash 538456924, now seen corresponding path program 1 times
[2019-10-13 19:46:05,615 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:05,615 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359573157]
[2019-10-13 19:46:05,616 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:05,616 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:05,616 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:05,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:05,950 WARN  L191               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:05,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:06,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:06,022 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359573157]
[2019-10-13 19:46:06,023 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:06,023 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:06,024 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258114540]
[2019-10-13 19:46:06,024 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:06,024 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:06,025 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:06,025 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:06,025 INFO  L87              Difference]: Start difference. First operand 1849 states and 2753 transitions. Second operand 4 states.
[2019-10-13 19:46:09,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:09,294 INFO  L93              Difference]: Finished difference Result 5501 states and 8189 transitions.
[2019-10-13 19:46:09,295 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:09,295 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 147
[2019-10-13 19:46:09,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:09,313 INFO  L225             Difference]: With dead ends: 5501
[2019-10-13 19:46:09,314 INFO  L226             Difference]: Without dead ends: 3684
[2019-10-13 19:46:09,319 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
[2019-10-13 19:46:09,324 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3684 states.
[2019-10-13 19:46:09,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 1851.
[2019-10-13 19:46:09,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1851 states.
[2019-10-13 19:46:09,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2755 transitions.
[2019-10-13 19:46:09,414 INFO  L78                 Accepts]: Start accepts. Automaton has 1851 states and 2755 transitions. Word has length 147
[2019-10-13 19:46:09,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:09,414 INFO  L462      AbstractCegarLoop]: Abstraction has 1851 states and 2755 transitions.
[2019-10-13 19:46:09,414 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:09,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 1851 states and 2755 transitions.
[2019-10-13 19:46:09,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:46:09,420 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:09,420 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]
[2019-10-13 19:46:09,420 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:09,420 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:09,421 INFO  L82        PathProgramCache]: Analyzing trace with hash 633413372, now seen corresponding path program 1 times
[2019-10-13 19:46:09,421 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:09,421 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345726207]
[2019-10-13 19:46:09,422 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:09,422 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:09,422 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:09,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:09,882 WARN  L191               SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:09,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:10,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:10,018 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345726207]
[2019-10-13 19:46:10,018 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:10,018 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:10,019 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883361891]
[2019-10-13 19:46:10,019 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:10,019 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:10,019 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:10,020 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:10,020 INFO  L87              Difference]: Start difference. First operand 1851 states and 2755 transitions. Second operand 4 states.
[2019-10-13 19:46:13,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:13,293 INFO  L93              Difference]: Finished difference Result 5242 states and 7802 transitions.
[2019-10-13 19:46:13,293 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:13,294 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-13 19:46:13,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:13,311 INFO  L225             Difference]: With dead ends: 5242
[2019-10-13 19:46:13,312 INFO  L226             Difference]: Without dead ends: 3578
[2019-10-13 19:46:13,316 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
[2019-10-13 19:46:13,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3578 states.
[2019-10-13 19:46:13,438 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3538.
[2019-10-13 19:46:13,438 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3538 states.
[2019-10-13 19:46:13,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5226 transitions.
[2019-10-13 19:46:13,450 INFO  L78                 Accepts]: Start accepts. Automaton has 3538 states and 5226 transitions. Word has length 148
[2019-10-13 19:46:13,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:13,450 INFO  L462      AbstractCegarLoop]: Abstraction has 3538 states and 5226 transitions.
[2019-10-13 19:46:13,450 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:13,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 3538 states and 5226 transitions.
[2019-10-13 19:46:13,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:46:13,457 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:13,457 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]
[2019-10-13 19:46:13,457 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:13,458 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:13,458 INFO  L82        PathProgramCache]: Analyzing trace with hash -898154727, now seen corresponding path program 1 times
[2019-10-13 19:46:13,458 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:13,458 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481266449]
[2019-10-13 19:46:13,458 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:13,459 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:13,459 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:13,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:14,025 WARN  L191               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:14,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:14,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:14,062 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481266449]
[2019-10-13 19:46:14,064 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:14,064 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:14,069 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674201432]
[2019-10-13 19:46:14,069 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:14,069 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:14,070 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:14,071 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:14,071 INFO  L87              Difference]: Start difference. First operand 3538 states and 5226 transitions. Second operand 5 states.
[2019-10-13 19:46:16,217 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:16,217 INFO  L93              Difference]: Finished difference Result 7326 states and 10753 transitions.
[2019-10-13 19:46:16,217 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:16,218 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-13 19:46:16,218 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:16,234 INFO  L225             Difference]: With dead ends: 7326
[2019-10-13 19:46:16,234 INFO  L226             Difference]: Without dead ends: 3729
[2019-10-13 19:46:16,241 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:16,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3729 states.
[2019-10-13 19:46:16,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3689.
[2019-10-13 19:46:16,357 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3689 states.
[2019-10-13 19:46:16,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5386 transitions.
[2019-10-13 19:46:16,364 INFO  L78                 Accepts]: Start accepts. Automaton has 3689 states and 5386 transitions. Word has length 148
[2019-10-13 19:46:16,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:16,365 INFO  L462      AbstractCegarLoop]: Abstraction has 3689 states and 5386 transitions.
[2019-10-13 19:46:16,365 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:16,365 INFO  L276                IsEmpty]: Start isEmpty. Operand 3689 states and 5386 transitions.
[2019-10-13 19:46:16,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:46:16,373 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:16,373 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]
[2019-10-13 19:46:16,373 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:16,373 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:16,374 INFO  L82        PathProgramCache]: Analyzing trace with hash 869668669, now seen corresponding path program 1 times
[2019-10-13 19:46:16,374 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:16,374 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033004188]
[2019-10-13 19:46:16,374 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:16,374 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:16,375 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:16,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:16,856 WARN  L191               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:16,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:16,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:16,897 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033004188]
[2019-10-13 19:46:16,897 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:16,897 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:16,897 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939870364]
[2019-10-13 19:46:16,898 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:16,898 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:16,898 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:16,899 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:16,899 INFO  L87              Difference]: Start difference. First operand 3689 states and 5386 transitions. Second operand 5 states.
[2019-10-13 19:46:19,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:19,895 INFO  L93              Difference]: Finished difference Result 10707 states and 15556 transitions.
[2019-10-13 19:46:19,895 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:19,896 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-13 19:46:19,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:19,922 INFO  L225             Difference]: With dead ends: 10707
[2019-10-13 19:46:19,922 INFO  L226             Difference]: Without dead ends: 7090
[2019-10-13 19:46:19,929 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 19:46:19,936 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7090 states.
[2019-10-13 19:46:20,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7050.
[2019-10-13 19:46:20,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7050 states.
[2019-10-13 19:46:20,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10162 transitions.
[2019-10-13 19:46:20,193 INFO  L78                 Accepts]: Start accepts. Automaton has 7050 states and 10162 transitions. Word has length 148
[2019-10-13 19:46:20,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:20,193 INFO  L462      AbstractCegarLoop]: Abstraction has 7050 states and 10162 transitions.
[2019-10-13 19:46:20,193 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:20,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 7050 states and 10162 transitions.
[2019-10-13 19:46:20,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2019-10-13 19:46:20,203 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:20,203 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]
[2019-10-13 19:46:20,204 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:20,204 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:20,204 INFO  L82        PathProgramCache]: Analyzing trace with hash -1355279811, now seen corresponding path program 1 times
[2019-10-13 19:46:20,204 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:20,205 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012563246]
[2019-10-13 19:46:20,205 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:20,205 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:20,205 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:20,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:20,591 WARN  L191               SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:20,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:20,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:20,642 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012563246]
[2019-10-13 19:46:20,642 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:20,642 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:20,643 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382313201]
[2019-10-13 19:46:20,644 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:20,644 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:20,645 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:20,646 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:20,646 INFO  L87              Difference]: Start difference. First operand 7050 states and 10162 transitions. Second operand 4 states.
[2019-10-13 19:46:22,756 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:22,757 INFO  L93              Difference]: Finished difference Result 20956 states and 30182 transitions.
[2019-10-13 19:46:22,757 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:22,757 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 149
[2019-10-13 19:46:22,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:22,803 INFO  L225             Difference]: With dead ends: 20956
[2019-10-13 19:46:22,804 INFO  L226             Difference]: Without dead ends: 14022
[2019-10-13 19:46:22,817 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
[2019-10-13 19:46:22,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14022 states.
[2019-10-13 19:46:23,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14022 to 7062.
[2019-10-13 19:46:23,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7062 states.
[2019-10-13 19:46:23,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7062 states to 7062 states and 10174 transitions.
[2019-10-13 19:46:23,212 INFO  L78                 Accepts]: Start accepts. Automaton has 7062 states and 10174 transitions. Word has length 149
[2019-10-13 19:46:23,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:23,212 INFO  L462      AbstractCegarLoop]: Abstraction has 7062 states and 10174 transitions.
[2019-10-13 19:46:23,212 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:23,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 7062 states and 10174 transitions.
[2019-10-13 19:46:23,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2019-10-13 19:46:23,222 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:23,223 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]
[2019-10-13 19:46:23,223 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:23,223 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:23,224 INFO  L82        PathProgramCache]: Analyzing trace with hash 562177598, now seen corresponding path program 1 times
[2019-10-13 19:46:23,224 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:23,224 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580422471]
[2019-10-13 19:46:23,224 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:23,225 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:23,225 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:23,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:23,663 WARN  L191               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-13 19:46:23,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:23,704 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:23,705 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580422471]
[2019-10-13 19:46:23,705 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:23,705 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:23,705 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933064954]
[2019-10-13 19:46:23,706 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:23,706 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:23,706 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:23,707 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:23,707 INFO  L87              Difference]: Start difference. First operand 7062 states and 10174 transitions. Second operand 5 states.