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 0.1.24-13a467a-m
[2019-10-14 23:44:46,658 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-10-14 23:44:46,715 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 23:44:46,716 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 23:44:46,719 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-10-14 23:44:46,755 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 23:44:46,784 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:44:46,784 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:44:46,786 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:44:46,786 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:44:46,786 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:44:46,786 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:44:46,787 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:44:46,788 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:44:46,788 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:44:46,788 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:44:46,788 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:44:46,788 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:44:46,789 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:44:46,789 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:44:46,789 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:44:46,789 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:44:46,789 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:44:46,790 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:44:46,790 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:44:46,790 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:44:46,790 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:44:46,790 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:44:46,791 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:44:46,791 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:44:47,108 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:44:47,134 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:44:47,138 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:44:47,139 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:44:47,139 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:44:47,140 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:47,219 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee2257e/bb0a75ba050c4e0f81884c8a605ee1a0/FLAG1bfd70b61
[2019-10-14 23:44:47,791 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:44:47,791 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:47,820 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee2257e/bb0a75ba050c4e0f81884c8a605ee1a0/FLAG1bfd70b61
[2019-10-14 23:44:48,052 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee2257e/bb0a75ba050c4e0f81884c8a605ee1a0
[2019-10-14 23:44:48,062 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:44:48,064 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:44:48,065 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:48,065 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:44:48,069 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:44:48,070 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:48" (1/1) ...
[2019-10-14 23:44:48,072 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed9b754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:48, skipping insertion in model container
[2019-10-14 23:44:48,073 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:48" (1/1) ...
[2019-10-14 23:44:48,080 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:44:48,158 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:44:48,839 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:48,867 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:44:49,313 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:44:49,336 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:44:49,336 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49 WrapperNode
[2019-10-14 23:44:49,337 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:44:49,337 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:44:49,338 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:44:49,338 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:44:49,353 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,354 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,389 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,390 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,455 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,481 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,487 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (1/1) ...
[2019-10-14 23:44:49,498 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:44:49,502 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:44:49,503 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:44:49,503 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:44:49,504 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (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 23:44:49,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:44:49,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:44:49,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:44:49,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:44:49,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:44:49,587 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 23:44:49,587 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-14 23:44:49,587 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 23:44:49,588 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-14 23:44:49,588 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-14 23:44:49,589 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-14 23:44:49,589 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-14 23:44:49,589 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-14 23:44:49,590 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-14 23:44:49,591 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-14 23:44:49,591 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:44:49,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:44:49,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:44:51,464 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:44:51,465 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-14 23:44:51,469 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:51 BoogieIcfgContainer
[2019-10-14 23:44:51,472 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:44:51,473 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:44:51,473 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:44:51,476 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:44:51,477 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:48" (1/3) ...
[2019-10-14 23:44:51,478 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4701deee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:51, skipping insertion in model container
[2019-10-14 23:44:51,478 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:49" (2/3) ...
[2019-10-14 23:44:51,479 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4701deee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:51, skipping insertion in model container
[2019-10-14 23:44:51,480 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:51" (3/3) ...
[2019-10-14 23:44:51,488 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-14 23:44:51,498 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:44:51,527 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-14 23:44:51,544 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-14 23:44:51,591 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:44:51,591 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:44:51,591 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:44:51,592 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:44:51,592 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:44:51,592 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:44:51,592 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:44:51,592 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:44:51,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 412 states.
[2019-10-14 23:44:51,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-14 23:44:51,671 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:51,672 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]
[2019-10-14 23:44:51,674 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:51,680 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:51,681 INFO  L82        PathProgramCache]: Analyzing trace with hash -1370932676, now seen corresponding path program 1 times
[2019-10-14 23:44:51,690 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:51,690 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063762051]
[2019-10-14 23:44:51,691 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:51,691 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:51,691 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:52,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:52,745 WARN  L191               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:44:52,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:52,837 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 23:44:52,838 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063762051]
[2019-10-14 23:44:52,839 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:52,839 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:52,840 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19885819]
[2019-10-14 23:44:52,848 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:52,848 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:52,862 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:52,863 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:52,866 INFO  L87              Difference]: Start difference. First operand 412 states. Second operand 4 states.
[2019-10-14 23:44:53,236 WARN  L191               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 203
[2019-10-14 23:44:55,877 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:55,878 INFO  L93              Difference]: Finished difference Result 754 states and 1320 transitions.
[2019-10-14 23:44:55,878 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:55,880 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 146
[2019-10-14 23:44:55,881 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:55,919 INFO  L225             Difference]: With dead ends: 754
[2019-10-14 23:44:55,920 INFO  L226             Difference]: Without dead ends: 593
[2019-10-14 23:44:55,927 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
[2019-10-14 23:44:55,950 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 593 states.
[2019-10-14 23:44:56,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591.
[2019-10-14 23:44:56,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 591 states.
[2019-10-14 23:44:56,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 870 transitions.
[2019-10-14 23:44:56,055 INFO  L78                 Accepts]: Start accepts. Automaton has 591 states and 870 transitions. Word has length 146
[2019-10-14 23:44:56,056 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:56,056 INFO  L462      AbstractCegarLoop]: Abstraction has 591 states and 870 transitions.
[2019-10-14 23:44:56,057 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:56,057 INFO  L276                IsEmpty]: Start isEmpty. Operand 591 states and 870 transitions.
[2019-10-14 23:44:56,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-14 23:44:56,060 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:56,060 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]
[2019-10-14 23:44:56,061 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:56,061 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:56,061 INFO  L82        PathProgramCache]: Analyzing trace with hash 949503868, now seen corresponding path program 1 times
[2019-10-14 23:44:56,062 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:56,062 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144989879]
[2019-10-14 23:44:56,062 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:56,062 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:56,063 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:56,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:56,527 WARN  L191               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:44:56,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:56,570 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 23:44:56,571 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144989879]
[2019-10-14 23:44:56,571 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:56,571 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:56,571 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110023950]
[2019-10-14 23:44:56,573 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:56,573 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:56,574 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:56,574 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:56,574 INFO  L87              Difference]: Start difference. First operand 591 states and 870 transitions. Second operand 4 states.
[2019-10-14 23:44:56,880 WARN  L191               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 203
[2019-10-14 23:44:59,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:59,100 INFO  L93              Difference]: Finished difference Result 1192 states and 1809 transitions.
[2019-10-14 23:44:59,100 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:59,100 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 146
[2019-10-14 23:44:59,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:59,107 INFO  L225             Difference]: With dead ends: 1192
[2019-10-14 23:44:59,108 INFO  L226             Difference]: Without dead ends: 979
[2019-10-14 23:44:59,111 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:59,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 979 states.
[2019-10-14 23:44:59,152 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 977.
[2019-10-14 23:44:59,153 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 977 states.
[2019-10-14 23:44:59,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1462 transitions.
[2019-10-14 23:44:59,158 INFO  L78                 Accepts]: Start accepts. Automaton has 977 states and 1462 transitions. Word has length 146
[2019-10-14 23:44:59,159 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:59,159 INFO  L462      AbstractCegarLoop]: Abstraction has 977 states and 1462 transitions.
[2019-10-14 23:44:59,159 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:59,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 977 states and 1462 transitions.
[2019-10-14 23:44:59,162 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2019-10-14 23:44:59,162 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:59,163 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]
[2019-10-14 23:44:59,163 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:59,163 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:59,163 INFO  L82        PathProgramCache]: Analyzing trace with hash 949165244, now seen corresponding path program 1 times
[2019-10-14 23:44:59,164 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:59,164 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931317730]
[2019-10-14 23:44:59,164 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:59,164 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:59,165 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:59,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:59,824 WARN  L191               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:44:59,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:59,902 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 23:44:59,903 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931317730]
[2019-10-14 23:44:59,903 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:59,903 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:59,904 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252105389]
[2019-10-14 23:44:59,904 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:59,905 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:59,905 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:59,905 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:59,905 INFO  L87              Difference]: Start difference. First operand 977 states and 1462 transitions. Second operand 5 states.
[2019-10-14 23:45:03,085 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:03,085 INFO  L93              Difference]: Finished difference Result 2853 states and 4261 transitions.
[2019-10-14 23:45:03,090 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:03,090 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 146
[2019-10-14 23:45:03,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:03,103 INFO  L225             Difference]: With dead ends: 2853
[2019-10-14 23:45:03,104 INFO  L226             Difference]: Without dead ends: 1889
[2019-10-14 23:45:03,109 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 23:45:03,112 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1889 states.
[2019-10-14 23:45:03,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1849.
[2019-10-14 23:45:03,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1849 states.
[2019-10-14 23:45:03,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2753 transitions.
[2019-10-14 23:45:03,188 INFO  L78                 Accepts]: Start accepts. Automaton has 1849 states and 2753 transitions. Word has length 146
[2019-10-14 23:45:03,188 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:03,188 INFO  L462      AbstractCegarLoop]: Abstraction has 1849 states and 2753 transitions.
[2019-10-14 23:45:03,188 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:03,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 1849 states and 2753 transitions.
[2019-10-14 23:45:03,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2019-10-14 23:45:03,192 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:03,193 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:45:03,193 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:03,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:03,194 INFO  L82        PathProgramCache]: Analyzing trace with hash 538456924, now seen corresponding path program 1 times
[2019-10-14 23:45:03,194 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:03,194 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521419787]
[2019-10-14 23:45:03,194 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:03,195 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:03,195 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:03,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:03,663 WARN  L191               SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:03,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:03,720 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 23:45:03,720 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521419787]
[2019-10-14 23:45:03,721 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:03,721 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:03,722 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804737259]
[2019-10-14 23:45:03,722 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:03,723 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:03,723 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:03,723 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:03,723 INFO  L87              Difference]: Start difference. First operand 1849 states and 2753 transitions. Second operand 4 states.
[2019-10-14 23:45:07,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:07,488 INFO  L93              Difference]: Finished difference Result 5501 states and 8189 transitions.
[2019-10-14 23:45:07,489 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:07,489 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 147
[2019-10-14 23:45:07,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:07,508 INFO  L225             Difference]: With dead ends: 5501
[2019-10-14 23:45:07,508 INFO  L226             Difference]: Without dead ends: 3684
[2019-10-14 23:45:07,512 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:07,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3684 states.
[2019-10-14 23:45:07,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 1851.
[2019-10-14 23:45:07,610 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1851 states.
[2019-10-14 23:45:07,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2755 transitions.
[2019-10-14 23:45:07,652 INFO  L78                 Accepts]: Start accepts. Automaton has 1851 states and 2755 transitions. Word has length 147
[2019-10-14 23:45:07,653 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:07,653 INFO  L462      AbstractCegarLoop]: Abstraction has 1851 states and 2755 transitions.
[2019-10-14 23:45:07,653 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:07,653 INFO  L276                IsEmpty]: Start isEmpty. Operand 1851 states and 2755 transitions.
[2019-10-14 23:45:07,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:45:07,656 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:07,657 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 23:45:07,657 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:07,657 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:07,658 INFO  L82        PathProgramCache]: Analyzing trace with hash 633413372, now seen corresponding path program 1 times
[2019-10-14 23:45:07,658 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:07,658 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488682187]
[2019-10-14 23:45:07,658 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:07,658 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:07,659 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:07,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:07,993 WARN  L191               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:07,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:08,036 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 23:45:08,037 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488682187]
[2019-10-14 23:45:08,037 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:08,037 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:08,037 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317660432]
[2019-10-14 23:45:08,038 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:08,038 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:08,038 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:08,039 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:08,039 INFO  L87              Difference]: Start difference. First operand 1851 states and 2755 transitions. Second operand 4 states.
[2019-10-14 23:45:11,511 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:11,511 INFO  L93              Difference]: Finished difference Result 5242 states and 7802 transitions.
[2019-10-14 23:45:11,513 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:11,513 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-14 23:45:11,513 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:11,529 INFO  L225             Difference]: With dead ends: 5242
[2019-10-14 23:45:11,530 INFO  L226             Difference]: Without dead ends: 3578
[2019-10-14 23:45:11,534 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 23:45:11,538 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3578 states.
[2019-10-14 23:45:11,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3538.
[2019-10-14 23:45:11,659 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3538 states.
[2019-10-14 23:45:11,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5226 transitions.
[2019-10-14 23:45:11,669 INFO  L78                 Accepts]: Start accepts. Automaton has 3538 states and 5226 transitions. Word has length 148
[2019-10-14 23:45:11,670 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:11,670 INFO  L462      AbstractCegarLoop]: Abstraction has 3538 states and 5226 transitions.
[2019-10-14 23:45:11,670 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:11,670 INFO  L276                IsEmpty]: Start isEmpty. Operand 3538 states and 5226 transitions.
[2019-10-14 23:45:11,676 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:45:11,676 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:11,676 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 23:45:11,677 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:11,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:11,677 INFO  L82        PathProgramCache]: Analyzing trace with hash -898154727, now seen corresponding path program 1 times
[2019-10-14 23:45:11,678 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:11,678 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178283415]
[2019-10-14 23:45:11,678 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:11,678 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:11,678 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:11,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:12,231 WARN  L191               SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:12,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:12,265 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 23:45:12,265 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178283415]
[2019-10-14 23:45:12,266 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:12,267 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:12,271 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547415523]
[2019-10-14 23:45:12,272 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:12,273 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:12,273 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:12,279 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:12,280 INFO  L87              Difference]: Start difference. First operand 3538 states and 5226 transitions. Second operand 5 states.
[2019-10-14 23:45:14,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:14,488 INFO  L93              Difference]: Finished difference Result 7326 states and 10753 transitions.
[2019-10-14 23:45:14,493 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:14,494 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-14 23:45:14,494 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:14,509 INFO  L225             Difference]: With dead ends: 7326
[2019-10-14 23:45:14,509 INFO  L226             Difference]: Without dead ends: 3729
[2019-10-14 23:45:14,515 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
[2019-10-14 23:45:14,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3729 states.
[2019-10-14 23:45:14,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3689.
[2019-10-14 23:45:14,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3689 states.
[2019-10-14 23:45:14,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5386 transitions.
[2019-10-14 23:45:14,658 INFO  L78                 Accepts]: Start accepts. Automaton has 3689 states and 5386 transitions. Word has length 148
[2019-10-14 23:45:14,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:14,658 INFO  L462      AbstractCegarLoop]: Abstraction has 3689 states and 5386 transitions.
[2019-10-14 23:45:14,658 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:14,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 3689 states and 5386 transitions.
[2019-10-14 23:45:14,668 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-14 23:45:14,668 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:14,668 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]
[2019-10-14 23:45:14,669 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:14,669 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:14,669 INFO  L82        PathProgramCache]: Analyzing trace with hash 869668669, now seen corresponding path program 1 times
[2019-10-14 23:45:14,670 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:14,670 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763760313]
[2019-10-14 23:45:14,670 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:14,671 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:14,671 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:14,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:15,158 WARN  L191               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:15,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:15,208 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 23:45:15,209 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763760313]
[2019-10-14 23:45:15,209 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:15,209 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:15,209 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006463573]
[2019-10-14 23:45:15,210 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:15,211 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:15,211 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:15,212 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:15,212 INFO  L87              Difference]: Start difference. First operand 3689 states and 5386 transitions. Second operand 5 states.
[2019-10-14 23:45:18,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:18,205 INFO  L93              Difference]: Finished difference Result 10707 states and 15556 transitions.
[2019-10-14 23:45:18,206 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:45:18,206 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-14 23:45:18,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:18,234 INFO  L225             Difference]: With dead ends: 10707
[2019-10-14 23:45:18,234 INFO  L226             Difference]: Without dead ends: 7090
[2019-10-14 23:45:18,242 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
[2019-10-14 23:45:18,249 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7090 states.
[2019-10-14 23:45:18,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7050.
[2019-10-14 23:45:18,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7050 states.
[2019-10-14 23:45:18,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10162 transitions.
[2019-10-14 23:45:18,573 INFO  L78                 Accepts]: Start accepts. Automaton has 7050 states and 10162 transitions. Word has length 148
[2019-10-14 23:45:18,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:18,574 INFO  L462      AbstractCegarLoop]: Abstraction has 7050 states and 10162 transitions.
[2019-10-14 23:45:18,574 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:45:18,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 7050 states and 10162 transitions.
[2019-10-14 23:45:18,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2019-10-14 23:45:18,586 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:18,586 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 23:45:18,586 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:18,586 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:18,587 INFO  L82        PathProgramCache]: Analyzing trace with hash -1355279811, now seen corresponding path program 1 times
[2019-10-14 23:45:18,587 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:18,587 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757441091]
[2019-10-14 23:45:18,587 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:18,587 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:18,587 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:18,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:18,891 WARN  L191               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:18,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:18,920 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 23:45:18,921 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757441091]
[2019-10-14 23:45:18,921 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:18,921 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:45:18,921 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881931721]
[2019-10-14 23:45:18,922 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:45:18,922 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:18,922 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:45:18,922 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:45:18,923 INFO  L87              Difference]: Start difference. First operand 7050 states and 10162 transitions. Second operand 4 states.
[2019-10-14 23:45:21,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:45:21,185 INFO  L93              Difference]: Finished difference Result 20956 states and 30182 transitions.
[2019-10-14 23:45:21,185 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:45:21,185 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 149
[2019-10-14 23:45:21,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:45:21,233 INFO  L225             Difference]: With dead ends: 20956
[2019-10-14 23:45:21,233 INFO  L226             Difference]: Without dead ends: 14022
[2019-10-14 23:45:21,245 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 23:45:21,260 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14022 states.
[2019-10-14 23:45:21,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14022 to 7062.
[2019-10-14 23:45:21,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7062 states.
[2019-10-14 23:45:21,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7062 states to 7062 states and 10174 transitions.
[2019-10-14 23:45:21,574 INFO  L78                 Accepts]: Start accepts. Automaton has 7062 states and 10174 transitions. Word has length 149
[2019-10-14 23:45:21,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:45:21,574 INFO  L462      AbstractCegarLoop]: Abstraction has 7062 states and 10174 transitions.
[2019-10-14 23:45:21,574 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:45:21,575 INFO  L276                IsEmpty]: Start isEmpty. Operand 7062 states and 10174 transitions.
[2019-10-14 23:45:21,586 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2019-10-14 23:45:21,586 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:45:21,586 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 23:45:21,587 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:45:21,587 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:45:21,587 INFO  L82        PathProgramCache]: Analyzing trace with hash 562177598, now seen corresponding path program 1 times
[2019-10-14 23:45:21,587 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:45:21,587 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21132214]
[2019-10-14 23:45:21,588 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:21,588 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:45:21,588 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:45:21,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:22,061 WARN  L191               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2019-10-14 23:45:22,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:45:22,110 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 23:45:22,110 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21132214]
[2019-10-14 23:45:22,110 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:45:22,111 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:45:22,111 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715105149]
[2019-10-14 23:45:22,111 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:45:22,111 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:45:22,112 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:45:22,115 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:45:22,115 INFO  L87              Difference]: Start difference. First operand 7062 states and 10174 transitions. Second operand 5 states.