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


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


This is Ultimate 0.1.24-fb55353
[2019-11-06 22:12:28,159 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-11-06 22:12:28,181 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-11-06 22:12:28,213 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2019-11-06 22:12:28,216 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-06 22:12:28,220 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2019-11-06 22:12:28,244 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-11-06 22:12:28,247 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-11-06 22:12:28,274 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-06 22:12:28,274 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-06 22:12:28,278 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-06 22:12:28,278 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-06 22:12:28,278 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-06 22:12:28,279 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-06 22:12:28,279 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-06 22:12:28,279 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-06 22:12:28,280 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-06 22:12:28,280 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-06 22:12:28,281 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-06 22:12:28,281 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-06 22:12:28,281 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-06 22:12:28,282 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-06 22:12:28,282 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-06 22:12:28,282 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-06 22:12:28,282 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-06 22:12:28,283 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-06 22:12:28,283 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-06 22:12:28,283 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-06 22:12:28,283 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-06 22:12:28,283 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 22:12:28,284 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-06 22:12:28,284 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-06 22:12:28,284 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-06 22:12:28,284 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-06 22:12:28,285 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-06 22:12:28,285 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-06 22:12:28,285 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-06 22:12:28,558 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-06 22:12:28,572 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-06 22:12:28,575 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-06 22:12:28,577 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-06 22:12:28,577 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-06 22:12:28,578 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:12:28,642 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9486edd/14106bd04f9e4878be00d478cfe20cd9/FLAG7ba67c967
[2019-11-06 22:12:29,243 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-06 22:12:29,243 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:12:29,262 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9486edd/14106bd04f9e4878be00d478cfe20cd9/FLAG7ba67c967
[2019-11-06 22:12:29,484 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9486edd/14106bd04f9e4878be00d478cfe20cd9
[2019-11-06 22:12:29,495 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-06 22:12:29,496 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-06 22:12:29,497 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-06 22:12:29,497 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-06 22:12:29,500 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-06 22:12:29,501 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:29" (1/1) ...
[2019-11-06 22:12:29,504 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789b381a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:29, skipping insertion in model container
[2019-11-06 22:12:29,505 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:12:29" (1/1) ...
[2019-11-06 22:12:29,513 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-06 22:12:29,599 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-06 22:12:30,235 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 22:12:30,249 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-06 22:12:30,702 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 22:12:30,724 INFO  L192         MainTranslator]: Completed translation
[2019-11-06 22:12:30,725 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30 WrapperNode
[2019-11-06 22:12:30,725 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-06 22:12:30,726 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-06 22:12:30,726 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-06 22:12:30,727 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-06 22:12:30,738 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,738 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,763 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,764 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,821 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,851 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,861 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
[2019-11-06 22:12:30,876 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-06 22:12:30,878 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-06 22:12:30,879 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-06 22:12:30,879 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-06 22:12:30,880 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 22:12:30,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-06 22:12:30,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-06 22:12:30,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-11-06 22:12:30,959 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-06 22:12:30,959 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-11-06 22:12:30,960 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-11-06 22:12:30,960 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-11-06 22:12:30,960 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-11-06 22:12:30,961 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-11-06 22:12:30,961 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-11-06 22:12:30,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-11-06 22:12:30,961 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-11-06 22:12:30,962 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-11-06 22:12:30,962 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-11-06 22:12:30,963 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-11-06 22:12:30,963 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-11-06 22:12:30,966 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-11-06 22:12:30,966 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-06 22:12:30,966 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-06 22:12:32,581 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-06 22:12:32,582 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-06 22:12:32,586 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:32 BoogieIcfgContainer
[2019-11-06 22:12:32,587 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-06 22:12:32,588 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-06 22:12:32,588 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-11-06 22:12:32,593 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-11-06 22:12:32,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:12:29" (1/3) ...
[2019-11-06 22:12:32,595 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7ef95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:32, skipping insertion in model container
[2019-11-06 22:12:32,595 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:12:30" (2/3) ...
[2019-11-06 22:12:32,596 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e7ef95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:12:32, skipping insertion in model container
[2019-11-06 22:12:32,596 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:12:32" (3/3) ...
[2019-11-06 22:12:32,603 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-06 22:12:32,618 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-06 22:12:32,645 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-11-06 22:12:32,659 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-11-06 22:12:32,702 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-11-06 22:12:32,702 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-11-06 22:12:32,702 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-06 22:12:32,702 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-06 22:12:32,703 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-06 22:12:32,703 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-11-06 22:12:32,703 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-06 22:12:32,703 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-06 22:12:32,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 387 states.
[2019-11-06 22:12:32,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-11-06 22:12:32,775 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:32,777 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:32,779 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:32,784 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:32,785 INFO  L82        PathProgramCache]: Analyzing trace with hash -1251267404, now seen corresponding path program 1 times
[2019-11-06 22:12:32,795 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:32,795 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112695938]
[2019-11-06 22:12:32,795 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:33,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:33,802 WARN  L191               SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:33,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:33,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:33,878 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112695938]
[2019-11-06 22:12:33,879 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:33,879 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:12:33,881 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097813118]
[2019-11-06 22:12:33,886 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:12:33,886 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:33,900 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:12:33,901 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:33,903 INFO  L87              Difference]: Start difference. First operand 387 states. Second operand 4 states.
[2019-11-06 22:12:34,251 WARN  L191               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-11-06 22:12:36,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:36,848 INFO  L93              Difference]: Finished difference Result 709 states and 1253 transitions.
[2019-11-06 22:12:36,848 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:12:36,850 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 139
[2019-11-06 22:12:36,852 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:36,872 INFO  L225             Difference]: With dead ends: 709
[2019-11-06 22:12:36,872 INFO  L226             Difference]: Without dead ends: 562
[2019-11-06 22:12:36,877 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:36,896 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 562 states.
[2019-11-06 22:12:36,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 560.
[2019-11-06 22:12:36,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 560 states.
[2019-11-06 22:12:36,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 820 transitions.
[2019-11-06 22:12:36,969 INFO  L78                 Accepts]: Start accepts. Automaton has 560 states and 820 transitions. Word has length 139
[2019-11-06 22:12:36,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:36,970 INFO  L462      AbstractCegarLoop]: Abstraction has 560 states and 820 transitions.
[2019-11-06 22:12:36,970 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:12:36,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 560 states and 820 transitions.
[2019-11-06 22:12:36,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-11-06 22:12:36,973 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:36,973 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:36,974 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:36,974 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:36,974 INFO  L82        PathProgramCache]: Analyzing trace with hash 1903687668, now seen corresponding path program 1 times
[2019-11-06 22:12:36,975 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:36,975 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318614742]
[2019-11-06 22:12:36,975 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:37,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:37,360 WARN  L191               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:37,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:37,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:37,424 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318614742]
[2019-11-06 22:12:37,424 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:37,425 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:12:37,425 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639490504]
[2019-11-06 22:12:37,427 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:12:37,427 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:37,427 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:12:37,428 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:37,428 INFO  L87              Difference]: Start difference. First operand 560 states and 820 transitions. Second operand 4 states.
[2019-11-06 22:12:37,690 WARN  L191               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-11-06 22:12:39,777 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:39,778 INFO  L93              Difference]: Finished difference Result 1135 states and 1718 transitions.
[2019-11-06 22:12:39,779 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:12:39,779 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 139
[2019-11-06 22:12:39,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:39,791 INFO  L225             Difference]: With dead ends: 1135
[2019-11-06 22:12:39,791 INFO  L226             Difference]: Without dead ends: 934
[2019-11-06 22:12:39,795 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:39,799 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 934 states.
[2019-11-06 22:12:39,859 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 932.
[2019-11-06 22:12:39,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 932 states.
[2019-11-06 22:12:39,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1389 transitions.
[2019-11-06 22:12:39,864 INFO  L78                 Accepts]: Start accepts. Automaton has 932 states and 1389 transitions. Word has length 139
[2019-11-06 22:12:39,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:39,865 INFO  L462      AbstractCegarLoop]: Abstraction has 932 states and 1389 transitions.
[2019-11-06 22:12:39,865 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:12:39,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 932 states and 1389 transitions.
[2019-11-06 22:12:39,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-11-06 22:12:39,868 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:39,868 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:39,869 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:39,869 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:39,869 INFO  L82        PathProgramCache]: Analyzing trace with hash 1903349044, now seen corresponding path program 1 times
[2019-11-06 22:12:39,869 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:39,870 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788443096]
[2019-11-06 22:12:39,870 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:40,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:40,371 WARN  L191               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:40,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:40,408 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:40,408 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788443096]
[2019-11-06 22:12:40,409 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:40,409 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:12:40,409 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483110204]
[2019-11-06 22:12:40,410 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:12:40,410 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:40,410 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:12:40,411 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:40,411 INFO  L87              Difference]: Start difference. First operand 932 states and 1389 transitions. Second operand 5 states.
[2019-11-06 22:12:42,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:42,856 INFO  L93              Difference]: Finished difference Result 2722 states and 4050 transitions.
[2019-11-06 22:12:42,856 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:12:42,857 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 139
[2019-11-06 22:12:42,857 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:42,868 INFO  L225             Difference]: With dead ends: 2722
[2019-11-06 22:12:42,868 INFO  L226             Difference]: Without dead ends: 1803
[2019-11-06 22:12:42,874 INFO  L630         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
[2019-11-06 22:12:42,877 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1803 states.
[2019-11-06 22:12:42,981 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1761.
[2019-11-06 22:12:42,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1761 states.
[2019-11-06 22:12:42,994 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2610 transitions.
[2019-11-06 22:12:42,995 INFO  L78                 Accepts]: Start accepts. Automaton has 1761 states and 2610 transitions. Word has length 139
[2019-11-06 22:12:42,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:42,996 INFO  L462      AbstractCegarLoop]: Abstraction has 1761 states and 2610 transitions.
[2019-11-06 22:12:42,996 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:12:42,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 1761 states and 2610 transitions.
[2019-11-06 22:12:43,002 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2019-11-06 22:12:43,002 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:43,003 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:43,003 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:43,003 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:43,004 INFO  L82        PathProgramCache]: Analyzing trace with hash 1746903084, now seen corresponding path program 1 times
[2019-11-06 22:12:43,004 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:43,004 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74254489]
[2019-11-06 22:12:43,005 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:43,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:43,483 WARN  L191               SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:43,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:43,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:43,534 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74254489]
[2019-11-06 22:12:43,534 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:43,535 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:12:43,536 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234728505]
[2019-11-06 22:12:43,536 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:12:43,537 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:43,537 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:12:43,538 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:43,538 INFO  L87              Difference]: Start difference. First operand 1761 states and 2610 transitions. Second operand 4 states.
[2019-11-06 22:12:46,685 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:46,685 INFO  L93              Difference]: Finished difference Result 5237 states and 7760 transitions.
[2019-11-06 22:12:46,686 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:12:46,686 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 140
[2019-11-06 22:12:46,686 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:46,703 INFO  L225             Difference]: With dead ends: 5237
[2019-11-06 22:12:46,704 INFO  L226             Difference]: Without dead ends: 3508
[2019-11-06 22:12:46,708 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:46,713 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3508 states.
[2019-11-06 22:12:46,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 1763.
[2019-11-06 22:12:46,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1763 states.
[2019-11-06 22:12:46,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions.
[2019-11-06 22:12:46,814 INFO  L78                 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 140
[2019-11-06 22:12:46,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:46,814 INFO  L462      AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions.
[2019-11-06 22:12:46,814 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:12:46,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions.
[2019-11-06 22:12:46,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-11-06 22:12:46,819 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:46,819 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:46,819 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:46,820 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:46,820 INFO  L82        PathProgramCache]: Analyzing trace with hash 2122749224, now seen corresponding path program 1 times
[2019-11-06 22:12:46,820 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:46,821 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148549344]
[2019-11-06 22:12:46,821 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:46,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:47,161 WARN  L191               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:47,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:47,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:47,199 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148549344]
[2019-11-06 22:12:47,199 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:47,199 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:12:47,200 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210398217]
[2019-11-06 22:12:47,200 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:12:47,200 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:47,201 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:12:47,201 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:47,201 INFO  L87              Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 4 states.
[2019-11-06 22:12:50,021 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:50,021 INFO  L93              Difference]: Finished difference Result 4646 states and 6878 transitions.
[2019-11-06 22:12:50,022 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:12:50,022 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 141
[2019-11-06 22:12:50,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:50,036 INFO  L225             Difference]: With dead ends: 4646
[2019-11-06 22:12:50,037 INFO  L226             Difference]: Without dead ends: 3051
[2019-11-06 22:12:50,041 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:50,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3051 states.
[2019-11-06 22:12:50,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3009.
[2019-11-06 22:12:50,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3009 states.
[2019-11-06 22:12:50,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4406 transitions.
[2019-11-06 22:12:50,168 INFO  L78                 Accepts]: Start accepts. Automaton has 3009 states and 4406 transitions. Word has length 141
[2019-11-06 22:12:50,168 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:50,168 INFO  L462      AbstractCegarLoop]: Abstraction has 3009 states and 4406 transitions.
[2019-11-06 22:12:50,169 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:12:50,169 INFO  L276                IsEmpty]: Start isEmpty. Operand 3009 states and 4406 transitions.
[2019-11-06 22:12:50,174 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-11-06 22:12:50,174 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:50,175 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:50,175 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:50,175 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:50,176 INFO  L82        PathProgramCache]: Analyzing trace with hash -1627018325, now seen corresponding path program 1 times
[2019-11-06 22:12:50,176 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:50,177 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130102036]
[2019-11-06 22:12:50,177 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:50,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:50,646 WARN  L191               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:50,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:50,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:50,683 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130102036]
[2019-11-06 22:12:50,684 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:50,684 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:12:50,684 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880034790]
[2019-11-06 22:12:50,685 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:12:50,685 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:50,685 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:12:50,685 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:50,686 INFO  L87              Difference]: Start difference. First operand 3009 states and 4406 transitions. Second operand 5 states.
[2019-11-06 22:12:52,574 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:52,575 INFO  L93              Difference]: Finished difference Result 6236 states and 9063 transitions.
[2019-11-06 22:12:52,575 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:12:52,575 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-11-06 22:12:52,575 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:52,590 INFO  L225             Difference]: With dead ends: 6236
[2019-11-06 22:12:52,591 INFO  L226             Difference]: Without dead ends: 3185
[2019-11-06 22:12:52,598 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:52,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3185 states.
[2019-11-06 22:12:52,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3141.
[2019-11-06 22:12:52,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3141 states.
[2019-11-06 22:12:52,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4541 transitions.
[2019-11-06 22:12:52,733 INFO  L78                 Accepts]: Start accepts. Automaton has 3141 states and 4541 transitions. Word has length 141
[2019-11-06 22:12:52,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:52,734 INFO  L462      AbstractCegarLoop]: Abstraction has 3141 states and 4541 transitions.
[2019-11-06 22:12:52,734 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:12:52,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 3141 states and 4541 transitions.
[2019-11-06 22:12:52,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-11-06 22:12:52,739 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:52,740 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:52,740 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:52,740 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:52,741 INFO  L82        PathProgramCache]: Analyzing trace with hash -1058765613, now seen corresponding path program 1 times
[2019-11-06 22:12:52,741 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:52,741 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904404920]
[2019-11-06 22:12:52,741 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:52,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:53,170 WARN  L191               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:53,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:53,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:53,209 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904404920]
[2019-11-06 22:12:53,209 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:53,210 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:12:53,211 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225589642]
[2019-11-06 22:12:53,211 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:12:53,211 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:53,212 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:12:53,212 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:53,212 INFO  L87              Difference]: Start difference. First operand 3141 states and 4541 transitions. Second operand 5 states.
[2019-11-06 22:12:55,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:55,904 INFO  L93              Difference]: Finished difference Result 9129 states and 13145 transitions.
[2019-11-06 22:12:55,904 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:12:55,905 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-11-06 22:12:55,905 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:55,929 INFO  L225             Difference]: With dead ends: 9129
[2019-11-06 22:12:55,930 INFO  L226             Difference]: Without dead ends: 6060
[2019-11-06 22:12:55,936 INFO  L630         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
[2019-11-06 22:12:55,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6060 states.
[2019-11-06 22:12:56,166 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 6016.
[2019-11-06 22:12:56,167 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6016 states.
[2019-11-06 22:12:56,178 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 8600 transitions.
[2019-11-06 22:12:56,179 INFO  L78                 Accepts]: Start accepts. Automaton has 6016 states and 8600 transitions. Word has length 141
[2019-11-06 22:12:56,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:56,180 INFO  L462      AbstractCegarLoop]: Abstraction has 6016 states and 8600 transitions.
[2019-11-06 22:12:56,180 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:12:56,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 6016 states and 8600 transitions.
[2019-11-06 22:12:56,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-11-06 22:12:56,192 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:56,192 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:56,193 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:56,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:56,193 INFO  L82        PathProgramCache]: Analyzing trace with hash -1467508373, now seen corresponding path program 1 times
[2019-11-06 22:12:56,193 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:56,194 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972886122]
[2019-11-06 22:12:56,194 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:56,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:56,457 WARN  L191               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:56,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:56,484 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:56,484 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972886122]
[2019-11-06 22:12:56,485 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:56,485 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 22:12:56,485 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418779895]
[2019-11-06 22:12:56,486 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 22:12:56,486 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:56,486 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 22:12:56,486 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:56,487 INFO  L87              Difference]: Start difference. First operand 6016 states and 8600 transitions. Second operand 4 states.
[2019-11-06 22:12:58,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:12:58,307 INFO  L93              Difference]: Finished difference Result 17854 states and 25496 transitions.
[2019-11-06 22:12:58,308 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-11-06 22:12:58,308 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2019-11-06 22:12:58,309 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:12:58,366 INFO  L225             Difference]: With dead ends: 17854
[2019-11-06 22:12:58,366 INFO  L226             Difference]: Without dead ends: 11954
[2019-11-06 22:12:58,381 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 22:12:58,395 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11954 states.
[2019-11-06 22:12:58,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11954 to 6028.
[2019-11-06 22:12:58,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6028 states.
[2019-11-06 22:12:58,717 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 8612 transitions.
[2019-11-06 22:12:58,718 INFO  L78                 Accepts]: Start accepts. Automaton has 6028 states and 8612 transitions. Word has length 142
[2019-11-06 22:12:58,718 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:12:58,718 INFO  L462      AbstractCegarLoop]: Abstraction has 6028 states and 8612 transitions.
[2019-11-06 22:12:58,718 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 22:12:58,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 6028 states and 8612 transitions.
[2019-11-06 22:12:58,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2019-11-06 22:12:58,727 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:12:58,727 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:12:58,727 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:12:58,728 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:12:58,728 INFO  L82        PathProgramCache]: Analyzing trace with hash -1015908366, now seen corresponding path program 1 times
[2019-11-06 22:12:58,728 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:12:58,728 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053418719]
[2019-11-06 22:12:58,729 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:12:58,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:59,126 WARN  L191               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:12:59,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:12:59,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:12:59,164 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053418719]
[2019-11-06 22:12:59,164 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:12:59,164 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:12:59,165 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267924852]
[2019-11-06 22:12:59,165 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:12:59,165 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:12:59,165 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:12:59,166 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:12:59,166 INFO  L87              Difference]: Start difference. First operand 6028 states and 8612 transitions. Second operand 5 states.
[2019-11-06 22:13:02,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 22:13:02,017 INFO  L93              Difference]: Finished difference Result 17520 states and 24960 transitions.
[2019-11-06 22:13:02,018 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-11-06 22:13:02,018 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 143
[2019-11-06 22:13:02,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 22:13:02,040 INFO  L225             Difference]: With dead ends: 17520
[2019-11-06 22:13:02,040 INFO  L226             Difference]: Without dead ends: 11618
[2019-11-06 22:13:02,052 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-11-06 22:13:02,066 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11618 states.
[2019-11-06 22:13:02,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11618 to 11574.
[2019-11-06 22:13:02,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 11574 states.
[2019-11-06 22:13:02,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11574 states to 11574 states and 16344 transitions.
[2019-11-06 22:13:02,591 INFO  L78                 Accepts]: Start accepts. Automaton has 11574 states and 16344 transitions. Word has length 143
[2019-11-06 22:13:02,592 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 22:13:02,592 INFO  L462      AbstractCegarLoop]: Abstraction has 11574 states and 16344 transitions.
[2019-11-06 22:13:02,592 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 22:13:02,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 11574 states and 16344 transitions.
[2019-11-06 22:13:02,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2019-11-06 22:13:02,607 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 22:13:02,607 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 22:13:02,608 INFO  L410      AbstractCegarLoop]: === Iteration 10 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 22:13:02,608 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 22:13:02,608 INFO  L82        PathProgramCache]: Analyzing trace with hash 152789353, now seen corresponding path program 1 times
[2019-11-06 22:13:02,608 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 22:13:02,609 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955063571]
[2019-11-06 22:13:02,609 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 22:13:02,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:13:02,944 WARN  L191               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-11-06 22:13:02,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 22:13:02,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 22:13:02,983 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955063571]
[2019-11-06 22:13:02,983 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 22:13:02,984 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 22:13:02,984 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328133555]
[2019-11-06 22:13:02,984 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 22:13:02,984 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 22:13:02,985 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 22:13:02,985 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 22:13:02,985 INFO  L87              Difference]: Start difference. First operand 11574 states and 16344 transitions. Second operand 5 states.