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


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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:44:32,439 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:44:32,441 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-10-13 19:44:32,458 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-10-13 19:44:32,490 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:44:32,491 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:44:32,493 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-10-13 19:44:32,519 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 19:44:32,551 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 19:44:32,553 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:44:32,554 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:44:32,555 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 19:44:32,555 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 19:44:32,555 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:44:32,555 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 19:44:32,555 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 19:44:32,556 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 19:44:32,556 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 19:44:32,556 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:44:32,558 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:44:32,558 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:44:32,558 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 19:44:32,558 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 19:44:32,559 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 19:44:32,559 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:44:32,559 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:44:32,559 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 19:44:32,560 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 19:44:32,560 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 19:44:32,560 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:44:32,560 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:44:32,560 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:44:32,560 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:44:32,561 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 19:44:32,561 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:44:32,561 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:44:32,561 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-13 19:44:32,844 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:44:32,861 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:44:32,866 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:44:32,869 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 19:44:32,870 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 19:44:32,870 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:44:32,946 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7fb77ccf/1b3fbdc5ef5b4e64bb45b28db307ccbf/FLAGa2ebeff71
[2019-10-13 19:44:33,500 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 19:44:33,505 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:44:33,532 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7fb77ccf/1b3fbdc5ef5b4e64bb45b28db307ccbf/FLAGa2ebeff71
[2019-10-13 19:44:33,787 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7fb77ccf/1b3fbdc5ef5b4e64bb45b28db307ccbf
[2019-10-13 19:44:33,797 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:44:33,798 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:44:33,799 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:44:33,799 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:44:33,803 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:44:33,804 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:44:33" (1/1) ...
[2019-10-13 19:44:33,807 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4262f24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:33, skipping insertion in model container
[2019-10-13 19:44:33,808 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:44:33" (1/1) ...
[2019-10-13 19:44:33,816 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 19:44:33,895 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:44:34,570 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:44:34,593 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 19:44:35,017 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:44:35,059 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 19:44:35,060 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35 WrapperNode
[2019-10-13 19:44:35,060 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:44:35,061 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:44:35,062 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:44:35,062 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:44:35,083 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,084 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,106 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,107 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,140 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,179 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,185 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
[2019-10-13 19:44:35,194 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:44:35,195 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:44:35,195 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:44:35,195 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:44:35,196 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:44:35,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:44:35,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:44:35,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:44:35,290 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:44:35,291 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-13 19:44:35,291 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-13 19:44:35,291 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-13 19:44:35,291 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 19:44:35,291 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-13 19:44:35,292 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-13 19:44:35,292 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-13 19:44:35,292 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-13 19:44:35,292 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-13 19:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-13 19:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-13 19:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:44:37,044 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:44:37,045 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-13 19:44:37,046 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:44:37 BoogieIcfgContainer
[2019-10-13 19:44:37,047 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:44:37,048 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:44:37,048 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:44:37,052 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:44:37,052 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:44:33" (1/3) ...
[2019-10-13 19:44:37,053 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6297879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:44:37, skipping insertion in model container
[2019-10-13 19:44:37,053 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:44:35" (2/3) ...
[2019-10-13 19:44:37,053 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6297879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:44:37, skipping insertion in model container
[2019-10-13 19:44:37,054 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:44:37" (3/3) ...
[2019-10-13 19:44:37,056 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2019-10-13 19:44:37,067 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:44:37,087 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-13 19:44:37,097 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-13 19:44:37,129 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:44:37,129 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 19:44:37,129 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:44:37,129 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:44:37,130 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:44:37,130 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 19:44:37,130 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:44:37,130 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:44:37,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 376 states.
[2019-10-13 19:44:37,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2019-10-13 19:44:37,186 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:37,187 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]
[2019-10-13 19:44:37,189 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:37,193 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:37,193 INFO  L82        PathProgramCache]: Analyzing trace with hash 566032510, now seen corresponding path program 1 times
[2019-10-13 19:44:37,199 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:37,200 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652266283]
[2019-10-13 19:44:37,200 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:37,200 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:37,200 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:37,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:38,184 WARN  L191               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:38,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:38,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:38,287 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652266283]
[2019-10-13 19:44:38,288 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:38,288 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:44:38,288 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184304381]
[2019-10-13 19:44:38,295 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:44:38,295 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:38,313 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:44:38,314 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:38,316 INFO  L87              Difference]: Start difference. First operand 376 states. Second operand 4 states.
[2019-10-13 19:44:38,731 WARN  L191               SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2019-10-13 19:44:41,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:41,255 INFO  L93              Difference]: Finished difference Result 683 states and 1210 transitions.
[2019-10-13 19:44:41,255 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:44:41,256 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 137
[2019-10-13 19:44:41,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:41,276 INFO  L225             Difference]: With dead ends: 683
[2019-10-13 19:44:41,277 INFO  L226             Difference]: Without dead ends: 536
[2019-10-13 19:44:41,282 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:44:41,303 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 536 states.
[2019-10-13 19:44:41,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 534.
[2019-10-13 19:44:41,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 534 states.
[2019-10-13 19:44:41,371 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 783 transitions.
[2019-10-13 19:44:41,373 INFO  L78                 Accepts]: Start accepts. Automaton has 534 states and 783 transitions. Word has length 137
[2019-10-13 19:44:41,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:41,374 INFO  L462      AbstractCegarLoop]: Abstraction has 534 states and 783 transitions.
[2019-10-13 19:44:41,374 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:44:41,374 INFO  L276                IsEmpty]: Start isEmpty. Operand 534 states and 783 transitions.
[2019-10-13 19:44:41,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2019-10-13 19:44:41,379 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:41,379 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]
[2019-10-13 19:44:41,379 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:41,380 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:41,380 INFO  L82        PathProgramCache]: Analyzing trace with hash 227617534, now seen corresponding path program 1 times
[2019-10-13 19:44:41,380 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:41,381 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747347131]
[2019-10-13 19:44:41,381 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:41,381 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:41,381 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:41,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:41,810 WARN  L191               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:41,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:41,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:41,884 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747347131]
[2019-10-13 19:44:41,884 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:41,884 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:44:41,884 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228957255]
[2019-10-13 19:44:41,887 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:44:41,888 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:41,888 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:44:41,888 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:41,889 INFO  L87              Difference]: Start difference. First operand 534 states and 783 transitions. Second operand 4 states.
[2019-10-13 19:44:42,231 WARN  L191               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2019-10-13 19:44:44,157 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:44,158 INFO  L93              Difference]: Finished difference Result 1069 states and 1620 transitions.
[2019-10-13 19:44:44,158 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:44:44,159 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 137
[2019-10-13 19:44:44,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:44,167 INFO  L225             Difference]: With dead ends: 1069
[2019-10-13 19:44:44,167 INFO  L226             Difference]: Without dead ends: 878
[2019-10-13 19:44:44,169 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:44:44,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 878 states.
[2019-10-13 19:44:44,210 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 876.
[2019-10-13 19:44:44,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 876 states.
[2019-10-13 19:44:44,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1307 transitions.
[2019-10-13 19:44:44,215 INFO  L78                 Accepts]: Start accepts. Automaton has 876 states and 1307 transitions. Word has length 137
[2019-10-13 19:44:44,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:44,216 INFO  L462      AbstractCegarLoop]: Abstraction has 876 states and 1307 transitions.
[2019-10-13 19:44:44,216 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:44:44,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 876 states and 1307 transitions.
[2019-10-13 19:44:44,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2019-10-13 19:44:44,220 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:44,221 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]
[2019-10-13 19:44:44,221 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:44,221 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:44,222 INFO  L82        PathProgramCache]: Analyzing trace with hash 227278910, now seen corresponding path program 1 times
[2019-10-13 19:44:44,222 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:44,222 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421223152]
[2019-10-13 19:44:44,222 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:44,222 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:44,223 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:44,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:44,801 WARN  L191               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:44,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:44,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:44,840 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421223152]
[2019-10-13 19:44:44,840 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:44,840 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:44:44,841 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476348719]
[2019-10-13 19:44:44,841 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:44:44,842 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:44,842 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:44:44,842 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:44:44,842 INFO  L87              Difference]: Start difference. First operand 876 states and 1307 transitions. Second operand 5 states.
[2019-10-13 19:44:47,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:47,857 INFO  L93              Difference]: Finished difference Result 2559 states and 3814 transitions.
[2019-10-13 19:44:47,857 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:44:47,857 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 137
[2019-10-13 19:44:47,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:47,869 INFO  L225             Difference]: With dead ends: 2559
[2019-10-13 19:44:47,870 INFO  L226             Difference]: Without dead ends: 1696
[2019-10-13 19:44:47,875 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
[2019-10-13 19:44:47,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1696 states.
[2019-10-13 19:44:47,951 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1660.
[2019-10-13 19:44:47,951 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1660 states.
[2019-10-13 19:44:47,960 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2465 transitions.
[2019-10-13 19:44:47,960 INFO  L78                 Accepts]: Start accepts. Automaton has 1660 states and 2465 transitions. Word has length 137
[2019-10-13 19:44:47,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:47,961 INFO  L462      AbstractCegarLoop]: Abstraction has 1660 states and 2465 transitions.
[2019-10-13 19:44:47,961 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:44:47,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 1660 states and 2465 transitions.
[2019-10-13 19:44:47,965 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2019-10-13 19:44:47,965 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:47,965 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]
[2019-10-13 19:44:47,965 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:47,966 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:47,966 INFO  L82        PathProgramCache]: Analyzing trace with hash -1550747192, now seen corresponding path program 1 times
[2019-10-13 19:44:47,966 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:47,966 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494349327]
[2019-10-13 19:44:47,967 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:47,967 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:47,967 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:47,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:48,382 WARN  L191               SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:48,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:48,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:48,444 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494349327]
[2019-10-13 19:44:48,444 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:48,444 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:44:48,445 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979985332]
[2019-10-13 19:44:48,446 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:44:48,446 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:48,446 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:44:48,447 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:48,447 INFO  L87              Difference]: Start difference. First operand 1660 states and 2465 transitions. Second operand 4 states.
[2019-10-13 19:44:50,336 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:50,337 INFO  L93              Difference]: Finished difference Result 4934 states and 7325 transitions.
[2019-10-13 19:44:50,337 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:44:50,337 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 138
[2019-10-13 19:44:50,338 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:50,354 INFO  L225             Difference]: With dead ends: 4934
[2019-10-13 19:44:50,354 INFO  L226             Difference]: Without dead ends: 3306
[2019-10-13 19:44:50,358 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:50,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3306 states.
[2019-10-13 19:44:50,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 1662.
[2019-10-13 19:44:50,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1662 states.
[2019-10-13 19:44:50,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2467 transitions.
[2019-10-13 19:44:50,447 INFO  L78                 Accepts]: Start accepts. Automaton has 1662 states and 2467 transitions. Word has length 138
[2019-10-13 19:44:50,447 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:50,447 INFO  L462      AbstractCegarLoop]: Abstraction has 1662 states and 2467 transitions.
[2019-10-13 19:44:50,448 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:44:50,448 INFO  L276                IsEmpty]: Start isEmpty. Operand 1662 states and 2467 transitions.
[2019-10-13 19:44:50,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-10-13 19:44:50,451 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:50,451 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]
[2019-10-13 19:44:50,452 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:50,452 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:50,452 INFO  L82        PathProgramCache]: Analyzing trace with hash -2121179683, now seen corresponding path program 1 times
[2019-10-13 19:44:50,452 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:50,453 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374400962]
[2019-10-13 19:44:50,453 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:50,453 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:50,453 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:50,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:50,914 WARN  L191               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:50,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:50,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:50,959 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374400962]
[2019-10-13 19:44:50,960 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:50,960 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:44:50,960 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425960901]
[2019-10-13 19:44:50,961 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:44:50,961 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:50,962 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:44:50,962 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:44:50,962 INFO  L87              Difference]: Start difference. First operand 1662 states and 2467 transitions. Second operand 5 states.
[2019-10-13 19:44:53,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:53,787 INFO  L93              Difference]: Finished difference Result 4830 states and 7153 transitions.
[2019-10-13 19:44:53,787 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:44:53,787 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 139
[2019-10-13 19:44:53,788 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:53,804 INFO  L225             Difference]: With dead ends: 4830
[2019-10-13 19:44:53,804 INFO  L226             Difference]: Without dead ends: 3202
[2019-10-13 19:44:53,808 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
[2019-10-13 19:44:53,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3202 states.
[2019-10-13 19:44:53,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3166.
[2019-10-13 19:44:53,954 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3166 states.
[2019-10-13 19:44:53,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4659 transitions.
[2019-10-13 19:44:53,966 INFO  L78                 Accepts]: Start accepts. Automaton has 3166 states and 4659 transitions. Word has length 139
[2019-10-13 19:44:53,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:53,968 INFO  L462      AbstractCegarLoop]: Abstraction has 3166 states and 4659 transitions.
[2019-10-13 19:44:53,968 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:44:53,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 3166 states and 4659 transitions.
[2019-10-13 19:44:53,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2019-10-13 19:44:53,974 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:53,974 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]
[2019-10-13 19:44:53,975 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:53,975 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:53,975 INFO  L82        PathProgramCache]: Analyzing trace with hash 1901470855, now seen corresponding path program 1 times
[2019-10-13 19:44:53,976 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:53,976 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071177383]
[2019-10-13 19:44:53,976 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:53,976 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:53,977 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:54,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:54,355 WARN  L191               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:54,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:54,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:54,393 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071177383]
[2019-10-13 19:44:54,394 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:54,395 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:44:54,401 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370812323]
[2019-10-13 19:44:54,402 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:44:54,402 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:54,402 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:44:54,409 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:54,409 INFO  L87              Difference]: Start difference. First operand 3166 states and 4659 transitions. Second operand 4 states.
[2019-10-13 19:44:57,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:44:57,415 INFO  L93              Difference]: Finished difference Result 9414 states and 13849 transitions.
[2019-10-13 19:44:57,415 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:44:57,415 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 140
[2019-10-13 19:44:57,415 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:44:57,444 INFO  L225             Difference]: With dead ends: 9414
[2019-10-13 19:44:57,444 INFO  L226             Difference]: Without dead ends: 6296
[2019-10-13 19:44:57,452 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:57,458 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6296 states.
[2019-10-13 19:44:57,624 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 3170.
[2019-10-13 19:44:57,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3170 states.
[2019-10-13 19:44:57,631 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4663 transitions.
[2019-10-13 19:44:57,631 INFO  L78                 Accepts]: Start accepts. Automaton has 3170 states and 4663 transitions. Word has length 140
[2019-10-13 19:44:57,632 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:44:57,632 INFO  L462      AbstractCegarLoop]: Abstraction has 3170 states and 4663 transitions.
[2019-10-13 19:44:57,633 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:44:57,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 3170 states and 4663 transitions.
[2019-10-13 19:44:57,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-13 19:44:57,639 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:44:57,639 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:44:57,639 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:44:57,640 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:44:57,640 INFO  L82        PathProgramCache]: Analyzing trace with hash 1097233700, now seen corresponding path program 1 times
[2019-10-13 19:44:57,640 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:44:57,640 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028702297]
[2019-10-13 19:44:57,640 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:57,641 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:44:57,641 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:44:57,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:58,007 WARN  L191               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:44:58,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:44:58,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:44:58,094 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028702297]
[2019-10-13 19:44:58,095 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:44:58,095 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:44:58,096 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419607453]
[2019-10-13 19:44:58,097 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:44:58,097 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:44:58,097 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:44:58,097 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:44:58,098 INFO  L87              Difference]: Start difference. First operand 3170 states and 4663 transitions. Second operand 4 states.
[2019-10-13 19:45:00,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:45:00,496 INFO  L93              Difference]: Finished difference Result 8343 states and 12276 transitions.
[2019-10-13 19:45:00,496 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:45:00,496 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 141
[2019-10-13 19:45:00,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:45:00,519 INFO  L225             Difference]: With dead ends: 8343
[2019-10-13 19:45:00,520 INFO  L226             Difference]: Without dead ends: 5461
[2019-10-13 19:45:00,526 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:45:00,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5461 states.
[2019-10-13 19:45:00,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 5425.
[2019-10-13 19:45:00,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5425 states.
[2019-10-13 19:45:00,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 7876 transitions.
[2019-10-13 19:45:00,766 INFO  L78                 Accepts]: Start accepts. Automaton has 5425 states and 7876 transitions. Word has length 141
[2019-10-13 19:45:00,766 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:45:00,766 INFO  L462      AbstractCegarLoop]: Abstraction has 5425 states and 7876 transitions.
[2019-10-13 19:45:00,766 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:45:00,766 INFO  L276                IsEmpty]: Start isEmpty. Operand 5425 states and 7876 transitions.
[2019-10-13 19:45:00,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-13 19:45:00,776 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:00,776 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]
[2019-10-13 19:45:00,776 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:00,777 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:00,777 INFO  L82        PathProgramCache]: Analyzing trace with hash -1702008345, now seen corresponding path program 1 times
[2019-10-13 19:45:00,777 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:00,777 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803239959]
[2019-10-13 19:45:00,777 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:00,778 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:00,778 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:00,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:01,190 WARN  L191               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:45:01,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:01,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:01,223 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803239959]
[2019-10-13 19:45:01,223 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:01,223 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:45:01,224 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538560714]
[2019-10-13 19:45:01,225 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:45:01,225 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:01,225 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:45:01,226 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:45:01,227 INFO  L87              Difference]: Start difference. First operand 5425 states and 7876 transitions. Second operand 5 states.
[2019-10-13 19:45:03,074 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:45:03,074 INFO  L93              Difference]: Finished difference Result 11218 states and 16169 transitions.
[2019-10-13 19:45:03,075 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:45:03,075 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-10-13 19:45:03,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:45:03,097 INFO  L225             Difference]: With dead ends: 11218
[2019-10-13 19:45:03,097 INFO  L226             Difference]: Without dead ends: 5673
[2019-10-13 19:45:03,107 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:45:03,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5673 states.
[2019-10-13 19:45:03,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 5637.
[2019-10-13 19:45:03,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5637 states.
[2019-10-13 19:45:03,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5637 states to 5637 states and 8064 transitions.
[2019-10-13 19:45:03,349 INFO  L78                 Accepts]: Start accepts. Automaton has 5637 states and 8064 transitions. Word has length 141
[2019-10-13 19:45:03,350 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:45:03,350 INFO  L462      AbstractCegarLoop]: Abstraction has 5637 states and 8064 transitions.
[2019-10-13 19:45:03,350 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:45:03,350 INFO  L276                IsEmpty]: Start isEmpty. Operand 5637 states and 8064 transitions.
[2019-10-13 19:45:03,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-13 19:45:03,358 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:03,359 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]
[2019-10-13 19:45:03,359 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:03,359 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:03,359 INFO  L82        PathProgramCache]: Analyzing trace with hash 680281852, now seen corresponding path program 1 times
[2019-10-13 19:45:03,360 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:03,360 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599099168]
[2019-10-13 19:45:03,360 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:03,360 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:03,360 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:03,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:03,780 WARN  L191               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:45:03,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:03,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:03,832 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599099168]
[2019-10-13 19:45:03,832 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:03,832 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:45:03,833 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566609935]
[2019-10-13 19:45:03,833 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:45:03,834 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:03,834 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:45:03,838 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:45:03,839 INFO  L87              Difference]: Start difference. First operand 5637 states and 8064 transitions. Second operand 5 states.
[2019-10-13 19:45:06,501 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:45:06,501 INFO  L93              Difference]: Finished difference Result 7924 states and 11307 transitions.
[2019-10-13 19:45:06,502 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:45:06,502 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-10-13 19:45:06,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:45:06,515 INFO  L225             Difference]: With dead ends: 7924
[2019-10-13 19:45:06,515 INFO  L226             Difference]: Without dead ends: 5673
[2019-10-13 19:45:06,521 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
[2019-10-13 19:45:06,528 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5673 states.
[2019-10-13 19:45:06,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 5425.
[2019-10-13 19:45:06,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5425 states.
[2019-10-13 19:45:06,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 7802 transitions.
[2019-10-13 19:45:06,838 INFO  L78                 Accepts]: Start accepts. Automaton has 5425 states and 7802 transitions. Word has length 141
[2019-10-13 19:45:06,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:45:06,838 INFO  L462      AbstractCegarLoop]: Abstraction has 5425 states and 7802 transitions.
[2019-10-13 19:45:06,839 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:45:06,839 INFO  L276                IsEmpty]: Start isEmpty. Operand 5425 states and 7802 transitions.
[2019-10-13 19:45:06,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-10-13 19:45:06,847 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:06,847 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:45:06,848 INFO  L410      AbstractCegarLoop]: === Iteration 10 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:06,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:06,849 INFO  L82        PathProgramCache]: Analyzing trace with hash -341992133, now seen corresponding path program 1 times
[2019-10-13 19:45:06,854 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:06,854 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549368736]
[2019-10-13 19:45:06,854 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:06,855 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:06,855 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:06,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:07,185 WARN  L191               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2019-10-13 19:45:07,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:07,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:07,217 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549368736]
[2019-10-13 19:45:07,217 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:07,217 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:45:07,217 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505718950]
[2019-10-13 19:45:07,218 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:45:07,218 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:07,218 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:45:07,219 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:45:07,219 INFO  L87              Difference]: Start difference. First operand 5425 states and 7802 transitions. Second operand 4 states.