/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c


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


This is Ultimate 0.2.0-7d8eed3
[2020-11-07 00:25:15,954 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2020-11-07 00:25:16,012 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2020-11-07 00:25:16,054 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-11-07 00:25:16,065 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-07 00:25:16,065 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-07 00:25:16,067 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-07 00:25:16,067 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-11-07 00:25:16,068 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-07 00:25:16,068 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-11-07 00:25:16,068 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-07 00:25:16,068 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-11-07 00:25:16,069 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-07 00:25:16,069 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-11-07 00:25:16,069 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-11-07 00:25:16,069 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-07 00:25:16,070 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-07 00:25:16,070 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-11-07 00:25:16,070 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-07 00:25:16,070 INFO  L138        SettingsManager]:  * Size of a code block=SingleStatement
[2020-11-07 00:25:16,071 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-11-07 00:25:16,071 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-11-07 00:25:16,071 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-07 00:25:16,071 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-07 00:25:16,072 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-11-07 00:25:16,072 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-07 00:25:16,072 INFO  L138        SettingsManager]:  * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-07 00:25:16,420 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-07 00:25:16,449 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-07 00:25:16,452 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-07 00:25:16,453 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-07 00:25:16,454 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-07 00:25:16,455 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c
[2020-11-07 00:25:16,530 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18331f727/4c99fe6bbfe745b8b9ca5d5550d49525/FLAG82c2cc65d
[2020-11-07 00:25:17,248 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-07 00:25:17,249 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c
[2020-11-07 00:25:17,271 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18331f727/4c99fe6bbfe745b8b9ca5d5550d49525/FLAG82c2cc65d
[2020-11-07 00:25:17,540 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18331f727/4c99fe6bbfe745b8b9ca5d5550d49525
[2020-11-07 00:25:17,543 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-07 00:25:17,552 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-11-07 00:25:17,554 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-07 00:25:17,554 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-07 00:25:17,558 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-07 00:25:17,559 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:17" (1/1) ...
[2020-11-07 00:25:17,563 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9b91bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:17, skipping insertion in model container
[2020-11-07 00:25:17,564 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:17" (1/1) ...
[2020-11-07 00:25:17,574 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-07 00:25:17,641 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-07 00:25:17,929 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-07 00:25:17,938 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-07 00:25:18,004 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-07 00:25:18,030 INFO  L208         MainTranslator]: Completed translation
[2020-11-07 00:25:18,031 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18 WrapperNode
[2020-11-07 00:25:18,031 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-07 00:25:18,033 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-07 00:25:18,033 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-07 00:25:18,033 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-07 00:25:18,047 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,047 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,057 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,058 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,072 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,084 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,088 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (1/1) ...
[2020-11-07 00:25:18,093 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-07 00:25:18,094 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-07 00:25:18,094 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-07 00:25:18,095 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-07 00:25:18,095 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (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
[2020-11-07 00:25:18,168 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-11-07 00:25:18,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-07 00:25:18,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-11-07 00:25:18,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure ssl3_connect
[2020-11-07 00:25:18,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-11-07 00:25:18,169 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-11-07 00:25:18,169 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure ssl3_connect
[2020-11-07 00:25:18,170 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-11-07 00:25:18,171 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-11-07 00:25:18,171 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-07 00:25:18,171 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-07 00:25:18,171 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-11-07 00:25:18,172 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-11-07 00:25:18,172 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-07 00:25:18,417 WARN  L798   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2020-11-07 00:25:18,993 INFO  L751   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false;
[2020-11-07 00:25:18,993 INFO  L751   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false;
[2020-11-07 00:25:19,013 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-07 00:25:19,014 INFO  L298             CfgBuilder]: Removed 1 assume(true) statements.
[2020-11-07 00:25:19,016 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:19 BoogieIcfgContainer
[2020-11-07 00:25:19,016 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-07 00:25:19,018 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-07 00:25:19,018 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-11-07 00:25:19,021 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-11-07 00:25:19,022 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:17" (1/3) ...
[2020-11-07 00:25:19,022 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7684a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:19, skipping insertion in model container
[2020-11-07 00:25:19,023 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:18" (2/3) ...
[2020-11-07 00:25:19,023 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7684a877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:19, skipping insertion in model container
[2020-11-07 00:25:19,023 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:19" (3/3) ...
[2020-11-07 00:25:19,025 INFO  L111   eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c
[2020-11-07 00:25:19,040 INFO  L179   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-11-07 00:25:19,044 INFO  L191   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-07 00:25:19,057 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-11-07 00:25:19,080 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-11-07 00:25:19,081 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-11-07 00:25:19,081 INFO  L379      AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-11-07 00:25:19,081 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-07 00:25:19,081 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-07 00:25:19,081 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-11-07 00:25:19,081 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-07 00:25:19,081 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-07 00:25:19,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 362 states.
[2020-11-07 00:25:19,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-11-07 00:25:19,125 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:19,126 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:19,129 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:19,135 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:19,135 INFO  L82        PathProgramCache]: Analyzing trace with hash -1178185491, now seen corresponding path program 1 times
[2020-11-07 00:25:19,145 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:19,146 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785651354]
[2020-11-07 00:25:19,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:19,223 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:19,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:19,483 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:19,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:19,576 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:19,578 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785651354]
[2020-11-07 00:25:19,580 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:19,580 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:19,581 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627015535]
[2020-11-07 00:25:19,589 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:19,590 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:19,607 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:19,608 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:19,610 INFO  L87              Difference]: Start difference. First operand 362 states. Second operand 4 states.
[2020-11-07 00:25:20,656 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:20,656 INFO  L93              Difference]: Finished difference Result 590 states and 767 transitions.
[2020-11-07 00:25:20,657 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:20,658 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 151
[2020-11-07 00:25:20,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:20,672 INFO  L225             Difference]: With dead ends: 590
[2020-11-07 00:25:20,673 INFO  L226             Difference]: Without dead ends: 326
[2020-11-07 00:25:20,678 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:20,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2020-11-07 00:25:20,775 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326.
[2020-11-07 00:25:20,777 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 326 states.
[2020-11-07 00:25:20,779 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 384 transitions.
[2020-11-07 00:25:20,780 INFO  L78                 Accepts]: Start accepts. Automaton has 326 states and 384 transitions. Word has length 151
[2020-11-07 00:25:20,781 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:20,781 INFO  L481      AbstractCegarLoop]: Abstraction has 326 states and 384 transitions.
[2020-11-07 00:25:20,782 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:20,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 326 states and 384 transitions.
[2020-11-07 00:25:20,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2020-11-07 00:25:20,785 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:20,785 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:20,785 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-07 00:25:20,786 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:20,786 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:20,786 INFO  L82        PathProgramCache]: Analyzing trace with hash -841787580, now seen corresponding path program 1 times
[2020-11-07 00:25:20,787 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:20,787 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856518059]
[2020-11-07 00:25:20,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:22,679 WARN  L194               SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 110 DAG size of output: 104
[2020-11-07 00:25:22,698 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:22,707 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:22,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:22,888 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:22,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:22,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:22,921 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856518059]
[2020-11-07 00:25:22,921 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:22,921 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:22,921 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492445597]
[2020-11-07 00:25:22,922 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:22,923 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:22,923 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:22,923 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:22,924 INFO  L87              Difference]: Start difference. First operand 326 states and 384 transitions. Second operand 4 states.
[2020-11-07 00:25:23,831 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:23,831 INFO  L93              Difference]: Finished difference Result 544 states and 667 transitions.
[2020-11-07 00:25:23,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:23,832 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 169
[2020-11-07 00:25:23,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:23,837 INFO  L225             Difference]: With dead ends: 544
[2020-11-07 00:25:23,837 INFO  L226             Difference]: Without dead ends: 354
[2020-11-07 00:25:23,844 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:23,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2020-11-07 00:25:23,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 344.
[2020-11-07 00:25:23,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 344 states.
[2020-11-07 00:25:23,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 407 transitions.
[2020-11-07 00:25:23,924 INFO  L78                 Accepts]: Start accepts. Automaton has 344 states and 407 transitions. Word has length 169
[2020-11-07 00:25:23,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:23,924 INFO  L481      AbstractCegarLoop]: Abstraction has 344 states and 407 transitions.
[2020-11-07 00:25:23,925 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:23,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 344 states and 407 transitions.
[2020-11-07 00:25:23,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-11-07 00:25:23,928 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:23,928 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:23,928 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-11-07 00:25:23,928 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:23,929 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:23,929 INFO  L82        PathProgramCache]: Analyzing trace with hash 327300708, now seen corresponding path program 1 times
[2020-11-07 00:25:23,929 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:23,930 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733316910]
[2020-11-07 00:25:23,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:24,072 WARN  L194               SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64
[2020-11-07 00:25:26,289 WARN  L194               SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 115 DAG size of output: 109
[2020-11-07 00:25:26,294 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:26,296 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:26,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:26,412 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:26,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:26,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:26,469 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733316910]
[2020-11-07 00:25:26,470 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:26,475 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-11-07 00:25:26,475 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463333846]
[2020-11-07 00:25:26,476 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-11-07 00:25:26,476 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:26,477 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-11-07 00:25:26,477 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:26,478 INFO  L87              Difference]: Start difference. First operand 344 states and 407 transitions. Second operand 5 states.
[2020-11-07 00:25:28,368 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:28,369 INFO  L93              Difference]: Finished difference Result 894 states and 1152 transitions.
[2020-11-07 00:25:28,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-11-07 00:25:28,370 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 176
[2020-11-07 00:25:28,371 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:28,376 INFO  L225             Difference]: With dead ends: 894
[2020-11-07 00:25:28,376 INFO  L226             Difference]: Without dead ends: 686
[2020-11-07 00:25:28,377 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-11-07 00:25:28,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 686 states.
[2020-11-07 00:25:28,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 391.
[2020-11-07 00:25:28,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 391 states.
[2020-11-07 00:25:28,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 462 transitions.
[2020-11-07 00:25:28,445 INFO  L78                 Accepts]: Start accepts. Automaton has 391 states and 462 transitions. Word has length 176
[2020-11-07 00:25:28,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:28,446 INFO  L481      AbstractCegarLoop]: Abstraction has 391 states and 462 transitions.
[2020-11-07 00:25:28,446 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-11-07 00:25:28,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 391 states and 462 transitions.
[2020-11-07 00:25:28,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2020-11-07 00:25:28,451 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:28,452 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:28,452 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-11-07 00:25:28,452 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:28,453 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:28,453 INFO  L82        PathProgramCache]: Analyzing trace with hash 1453915873, now seen corresponding path program 1 times
[2020-11-07 00:25:28,454 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:28,454 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107457962]
[2020-11-07 00:25:28,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:29,403 WARN  L194               SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 118
[2020-11-07 00:25:30,319 WARN  L194               SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 118
[2020-11-07 00:25:32,173 WARN  L194               SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 110 DAG size of output: 104
[2020-11-07 00:25:32,178 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:32,180 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:32,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:32,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:32,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:32,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:32,352 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107457962]
[2020-11-07 00:25:32,352 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:32,352 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:32,353 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12331386]
[2020-11-07 00:25:32,353 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:32,353 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:32,354 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:32,354 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:32,354 INFO  L87              Difference]: Start difference. First operand 391 states and 462 transitions. Second operand 4 states.
[2020-11-07 00:25:33,262 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:33,262 INFO  L93              Difference]: Finished difference Result 886 states and 1089 transitions.
[2020-11-07 00:25:33,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:33,263 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 189
[2020-11-07 00:25:33,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:33,269 INFO  L225             Difference]: With dead ends: 886
[2020-11-07 00:25:33,269 INFO  L226             Difference]: Without dead ends: 631
[2020-11-07 00:25:33,271 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:33,273 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 631 states.
[2020-11-07 00:25:33,360 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 630.
[2020-11-07 00:25:33,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 630 states.
[2020-11-07 00:25:33,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 761 transitions.
[2020-11-07 00:25:33,365 INFO  L78                 Accepts]: Start accepts. Automaton has 630 states and 761 transitions. Word has length 189
[2020-11-07 00:25:33,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:33,366 INFO  L481      AbstractCegarLoop]: Abstraction has 630 states and 761 transitions.
[2020-11-07 00:25:33,366 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:33,366 INFO  L276                IsEmpty]: Start isEmpty. Operand 630 states and 761 transitions.
[2020-11-07 00:25:33,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-11-07 00:25:33,369 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:33,369 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:33,370 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-11-07 00:25:33,370 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:33,370 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:33,373 INFO  L82        PathProgramCache]: Analyzing trace with hash -605658390, now seen corresponding path program 1 times
[2020-11-07 00:25:33,373 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:33,374 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377511236]
[2020-11-07 00:25:33,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:34,319 WARN  L194               SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:25:36,287 WARN  L194               SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 110 DAG size of output: 101
[2020-11-07 00:25:37,325 WARN  L194               SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:25:37,327 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:37,329 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:37,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:37,470 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:37,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:37,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:37,502 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377511236]
[2020-11-07 00:25:37,502 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:37,502 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:37,502 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783624330]
[2020-11-07 00:25:37,503 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:37,503 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:37,504 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:37,504 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:37,504 INFO  L87              Difference]: Start difference. First operand 630 states and 761 transitions. Second operand 4 states.
[2020-11-07 00:25:38,312 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:38,313 INFO  L93              Difference]: Finished difference Result 923 states and 1135 transitions.
[2020-11-07 00:25:38,313 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:38,313 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 190
[2020-11-07 00:25:38,314 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:38,318 INFO  L225             Difference]: With dead ends: 923
[2020-11-07 00:25:38,318 INFO  L226             Difference]: Without dead ends: 668
[2020-11-07 00:25:38,319 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:38,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 668 states.
[2020-11-07 00:25:38,409 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 650.
[2020-11-07 00:25:38,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 650 states.
[2020-11-07 00:25:38,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 786 transitions.
[2020-11-07 00:25:38,413 INFO  L78                 Accepts]: Start accepts. Automaton has 650 states and 786 transitions. Word has length 190
[2020-11-07 00:25:38,413 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:38,414 INFO  L481      AbstractCegarLoop]: Abstraction has 650 states and 786 transitions.
[2020-11-07 00:25:38,414 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:38,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 650 states and 786 transitions.
[2020-11-07 00:25:38,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2020-11-07 00:25:38,416 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:38,417 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:38,417 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-11-07 00:25:38,417 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:38,418 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:38,418 INFO  L82        PathProgramCache]: Analyzing trace with hash -1560288258, now seen corresponding path program 1 times
[2020-11-07 00:25:38,418 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:38,419 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515188534]
[2020-11-07 00:25:38,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:39,379 WARN  L194               SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:25:39,528 WARN  L194               SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54
[2020-11-07 00:25:40,670 WARN  L194               SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 127
[2020-11-07 00:25:42,522 WARN  L194               SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 110 DAG size of output: 104
[2020-11-07 00:25:42,525 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:42,527 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:42,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:42,611 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:42,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:42,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:42,649 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515188534]
[2020-11-07 00:25:42,649 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:42,649 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:42,649 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770022894]
[2020-11-07 00:25:42,650 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:42,650 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:42,650 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:42,651 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:42,651 INFO  L87              Difference]: Start difference. First operand 650 states and 786 transitions. Second operand 4 states.
[2020-11-07 00:25:43,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:43,552 INFO  L93              Difference]: Finished difference Result 1608 states and 1979 transitions.
[2020-11-07 00:25:43,553 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:43,553 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 197
[2020-11-07 00:25:43,553 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:43,559 INFO  L225             Difference]: With dead ends: 1608
[2020-11-07 00:25:43,559 INFO  L226             Difference]: Without dead ends: 1094
[2020-11-07 00:25:43,561 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:43,562 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1094 states.
[2020-11-07 00:25:43,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1089.
[2020-11-07 00:25:43,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1089 states.
[2020-11-07 00:25:43,704 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1322 transitions.
[2020-11-07 00:25:43,704 INFO  L78                 Accepts]: Start accepts. Automaton has 1089 states and 1322 transitions. Word has length 197
[2020-11-07 00:25:43,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:43,704 INFO  L481      AbstractCegarLoop]: Abstraction has 1089 states and 1322 transitions.
[2020-11-07 00:25:43,705 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:43,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 1089 states and 1322 transitions.
[2020-11-07 00:25:43,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2020-11-07 00:25:43,707 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:43,708 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:43,708 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-11-07 00:25:43,708 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:43,709 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:43,709 INFO  L82        PathProgramCache]: Analyzing trace with hash -2007213211, now seen corresponding path program 1 times
[2020-11-07 00:25:43,709 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:43,709 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066394374]
[2020-11-07 00:25:43,710 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:44,733 WARN  L194               SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 122
[2020-11-07 00:25:46,858 WARN  L194               SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 112 DAG size of output: 103
[2020-11-07 00:25:47,054 WARN  L194               SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54
[2020-11-07 00:25:48,201 WARN  L194               SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 127
[2020-11-07 00:25:48,202 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:48,204 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:48,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:48,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:48,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:48,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:48,322 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066394374]
[2020-11-07 00:25:48,322 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:48,322 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:48,322 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338943023]
[2020-11-07 00:25:48,322 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:48,323 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:48,323 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:48,323 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:48,323 INFO  L87              Difference]: Start difference. First operand 1089 states and 1322 transitions. Second operand 4 states.
[2020-11-07 00:25:48,748 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:48,748 INFO  L93              Difference]: Finished difference Result 2060 states and 2525 transitions.
[2020-11-07 00:25:48,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:48,749 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 198
[2020-11-07 00:25:48,751 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:48,757 INFO  L225             Difference]: With dead ends: 2060
[2020-11-07 00:25:48,757 INFO  L226             Difference]: Without dead ends: 1107
[2020-11-07 00:25:48,760 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:48,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1107 states.
[2020-11-07 00:25:48,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1097.
[2020-11-07 00:25:48,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1097 states.
[2020-11-07 00:25:48,905 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1327 transitions.
[2020-11-07 00:25:48,905 INFO  L78                 Accepts]: Start accepts. Automaton has 1097 states and 1327 transitions. Word has length 198
[2020-11-07 00:25:48,905 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:48,906 INFO  L481      AbstractCegarLoop]: Abstraction has 1097 states and 1327 transitions.
[2020-11-07 00:25:48,906 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:48,906 INFO  L276                IsEmpty]: Start isEmpty. Operand 1097 states and 1327 transitions.
[2020-11-07 00:25:48,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2020-11-07 00:25:48,909 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:48,909 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:48,909 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-11-07 00:25:48,910 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:48,910 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:48,910 INFO  L82        PathProgramCache]: Analyzing trace with hash -585015371, now seen corresponding path program 1 times
[2020-11-07 00:25:48,911 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:48,911 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970411803]
[2020-11-07 00:25:48,911 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:49,019 WARN  L194               SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47
[2020-11-07 00:25:50,122 WARN  L194               SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 125
[2020-11-07 00:25:50,283 WARN  L194               SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54
[2020-11-07 00:25:51,453 WARN  L194               SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 128
[2020-11-07 00:25:51,455 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:51,456 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:51,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:51,525 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:51,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:51,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:51,554 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970411803]
[2020-11-07 00:25:51,554 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:51,555 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:51,555 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87197873]
[2020-11-07 00:25:51,555 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:51,556 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:51,556 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:51,556 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:51,556 INFO  L87              Difference]: Start difference. First operand 1097 states and 1327 transitions. Second operand 4 states.
[2020-11-07 00:25:52,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:52,555 INFO  L93              Difference]: Finished difference Result 2614 states and 3192 transitions.
[2020-11-07 00:25:52,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:52,555 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 200
[2020-11-07 00:25:52,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:52,564 INFO  L225             Difference]: With dead ends: 2614
[2020-11-07 00:25:52,564 INFO  L226             Difference]: Without dead ends: 1653
[2020-11-07 00:25:52,569 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:52,572 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1653 states.
[2020-11-07 00:25:52,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1652.
[2020-11-07 00:25:52,792 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1652 states.
[2020-11-07 00:25:52,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1994 transitions.
[2020-11-07 00:25:52,798 INFO  L78                 Accepts]: Start accepts. Automaton has 1652 states and 1994 transitions. Word has length 200
[2020-11-07 00:25:52,799 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:52,799 INFO  L481      AbstractCegarLoop]: Abstraction has 1652 states and 1994 transitions.
[2020-11-07 00:25:52,799 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:52,803 INFO  L276                IsEmpty]: Start isEmpty. Operand 1652 states and 1994 transitions.
[2020-11-07 00:25:52,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2020-11-07 00:25:52,806 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:52,806 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:52,806 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-11-07 00:25:52,807 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:52,807 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:52,807 INFO  L82        PathProgramCache]: Analyzing trace with hash -639408269, now seen corresponding path program 1 times
[2020-11-07 00:25:52,807 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:52,808 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22086326]
[2020-11-07 00:25:52,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:52,914 WARN  L194               SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47
[2020-11-07 00:25:53,988 WARN  L194               SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 125
[2020-11-07 00:25:54,135 WARN  L194               SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54
[2020-11-07 00:25:55,314 WARN  L194               SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 128
[2020-11-07 00:25:57,468 WARN  L194               SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 112 DAG size of output: 106
[2020-11-07 00:25:57,471 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:25:57,472 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:25:57,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:57,580 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:25:57,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:25:57,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:25:57,606 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22086326]
[2020-11-07 00:25:57,606 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:25:57,606 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:25:57,606 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639184866]
[2020-11-07 00:25:57,607 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:25:57,607 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:25:57,607 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:25:57,607 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:25:57,607 INFO  L87              Difference]: Start difference. First operand 1652 states and 1994 transitions. Second operand 4 states.
[2020-11-07 00:25:58,510 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:25:58,510 INFO  L93              Difference]: Finished difference Result 2628 states and 3188 transitions.
[2020-11-07 00:25:58,511 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:25:58,511 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 200
[2020-11-07 00:25:58,511 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:25:58,519 INFO  L225             Difference]: With dead ends: 2628
[2020-11-07 00:25:58,520 INFO  L226             Difference]: Without dead ends: 1667
[2020-11-07 00:25:58,522 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:25:58,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1667 states.
[2020-11-07 00:25:58,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1666.
[2020-11-07 00:25:58,750 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1666 states.
[2020-11-07 00:25:58,758 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2004 transitions.
[2020-11-07 00:25:58,758 INFO  L78                 Accepts]: Start accepts. Automaton has 1666 states and 2004 transitions. Word has length 200
[2020-11-07 00:25:58,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:25:58,759 INFO  L481      AbstractCegarLoop]: Abstraction has 1666 states and 2004 transitions.
[2020-11-07 00:25:58,759 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:25:58,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 1666 states and 2004 transitions.
[2020-11-07 00:25:58,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 202
[2020-11-07 00:25:58,764 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:25:58,765 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:25:58,765 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-11-07 00:25:58,765 INFO  L429      AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:25:58,765 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:25:58,766 INFO  L82        PathProgramCache]: Analyzing trace with hash -682836114, now seen corresponding path program 1 times
[2020-11-07 00:25:58,766 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:25:58,766 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111002283]
[2020-11-07 00:25:58,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:25:58,892 WARN  L194               SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50
[2020-11-07 00:26:00,053 WARN  L194               SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 128
[2020-11-07 00:26:00,196 WARN  L194               SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54
[2020-11-07 00:26:01,363 WARN  L194               SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 128
[2020-11-07 00:26:01,372 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:26:01,375 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:26:01,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:26:01,494 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:26:01,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:26:01,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:26:01,526 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111002283]
[2020-11-07 00:26:01,526 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:26:01,526 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-11-07 00:26:01,526 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746019802]
[2020-11-07 00:26:01,527 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-11-07 00:26:01,527 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:26:01,527 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-11-07 00:26:01,528 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:26:01,528 INFO  L87              Difference]: Start difference. First operand 1666 states and 2004 transitions. Second operand 5 states.
[2020-11-07 00:26:03,421 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:26:03,421 INFO  L93              Difference]: Finished difference Result 3400 states and 4121 transitions.
[2020-11-07 00:26:03,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-11-07 00:26:03,429 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 201
[2020-11-07 00:26:03,430 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:26:03,443 INFO  L225             Difference]: With dead ends: 3400
[2020-11-07 00:26:03,443 INFO  L226             Difference]: Without dead ends: 2887
[2020-11-07 00:26:03,446 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-11-07 00:26:03,449 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2887 states.
[2020-11-07 00:26:03,693 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1680.
[2020-11-07 00:26:03,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1680 states.
[2020-11-07 00:26:03,700 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2023 transitions.
[2020-11-07 00:26:03,700 INFO  L78                 Accepts]: Start accepts. Automaton has 1680 states and 2023 transitions. Word has length 201
[2020-11-07 00:26:03,701 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:26:03,701 INFO  L481      AbstractCegarLoop]: Abstraction has 1680 states and 2023 transitions.
[2020-11-07 00:26:03,701 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-11-07 00:26:03,701 INFO  L276                IsEmpty]: Start isEmpty. Operand 1680 states and 2023 transitions.
[2020-11-07 00:26:03,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2020-11-07 00:26:03,706 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:26:03,706 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:26:03,706 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-11-07 00:26:03,707 INFO  L429      AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:26:03,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:26:03,707 INFO  L82        PathProgramCache]: Analyzing trace with hash 1837573722, now seen corresponding path program 1 times
[2020-11-07 00:26:03,707 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:26:03,708 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566111686]
[2020-11-07 00:26:03,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:26:04,743 WARN  L194               SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:26:06,841 WARN  L194               SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 110 DAG size of output: 101
[2020-11-07 00:26:07,971 WARN  L194               SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:26:07,972 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:26:07,974 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:26:07,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:26:08,042 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:26:08,044 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:26:08,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:26:08,113 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566111686]
[2020-11-07 00:26:08,114 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:26:08,114 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 00:26:08,114 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362264143]
[2020-11-07 00:26:08,114 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 00:26:08,115 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:26:08,115 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 00:26:08,115 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 00:26:08,115 INFO  L87              Difference]: Start difference. First operand 1680 states and 2023 transitions. Second operand 4 states.
[2020-11-07 00:26:09,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:26:09,201 INFO  L93              Difference]: Finished difference Result 4622 states and 5626 transitions.
[2020-11-07 00:26:09,201 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-11-07 00:26:09,201 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 212
[2020-11-07 00:26:09,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:26:09,215 INFO  L225             Difference]: With dead ends: 4622
[2020-11-07 00:26:09,215 INFO  L226             Difference]: Without dead ends: 3147
[2020-11-07 00:26:09,219 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 00:26:09,223 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3147 states.
[2020-11-07 00:26:09,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3142.
[2020-11-07 00:26:09,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3142 states.
[2020-11-07 00:26:09,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 3797 transitions.
[2020-11-07 00:26:09,759 INFO  L78                 Accepts]: Start accepts. Automaton has 3142 states and 3797 transitions. Word has length 212
[2020-11-07 00:26:09,760 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:26:09,760 INFO  L481      AbstractCegarLoop]: Abstraction has 3142 states and 3797 transitions.
[2020-11-07 00:26:09,760 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 00:26:09,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 3142 states and 3797 transitions.
[2020-11-07 00:26:09,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2020-11-07 00:26:09,764 INFO  L414         BasicCegarLoop]: Found error trace
[2020-11-07 00:26:09,765 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:26:09,765 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-11-07 00:26:09,765 INFO  L429      AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:26:09,765 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:26:09,766 INFO  L82        PathProgramCache]: Analyzing trace with hash -1140327750, now seen corresponding path program 1 times
[2020-11-07 00:26:09,766 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:26:09,766 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678707000]
[2020-11-07 00:26:09,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:26:10,758 WARN  L194               SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:26:10,861 WARN  L194               SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33
[2020-11-07 00:26:12,977 WARN  L194               SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 110 DAG size of output: 101
[2020-11-07 00:26:13,227 WARN  L194               SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42
[2020-11-07 00:26:14,121 WARN  L194               SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2020-11-07 00:26:14,122 INFO  L120            Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found.
[2020-11-07 00:26:14,124 INFO  L328   leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:26:14,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-07 00:26:14,160 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-07 00:26:14,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-07 00:26:14,214 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-07 00:26:14,328 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-11-07 00:26:14,328 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-11-07 00:26:14,331 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2020-11-07 00:26:14,374 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:26:14 BoogieIcfgContainer
[2020-11-07 00:26:14,374 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-07 00:26:14,376 INFO  L168              Benchmark]: Toolchain (without parser) took 56829.31 ms. Allocated memory was 158.3 MB in the beginning and 562.0 MB in the end (delta: 403.7 MB). Free memory was 133.7 MB in the beginning and 389.6 MB in the end (delta: -255.9 MB). Peak memory consumption was 148.6 MB. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,379 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,382 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 477.51 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 118.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,383 INFO  L168              Benchmark]: Boogie Preprocessor took 60.96 ms. Allocated memory is still 158.3 MB. Free memory was 118.8 MB in the beginning and 116.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,386 INFO  L168              Benchmark]: RCFGBuilder took 922.00 ms. Allocated memory is still 158.3 MB. Free memory was 116.4 MB in the beginning and 101.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,389 INFO  L168              Benchmark]: TraceAbstraction took 55355.92 ms. Allocated memory was 158.3 MB in the beginning and 562.0 MB in the end (delta: 403.7 MB). Free memory was 100.7 MB in the beginning and 389.6 MB in the end (delta: -288.9 MB). Peak memory consumption was 115.3 MB. Max. memory is 8.0 GB.
[2020-11-07 00:26:14,397 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 477.51 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 118.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 60.96 ms. Allocated memory is still 158.3 MB. Free memory was 118.8 MB in the beginning and 116.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 922.00 ms. Allocated memory is still 158.3 MB. Free memory was 116.4 MB in the beginning and 101.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 55355.92 ms. Allocated memory was 158.3 MB in the beginning and 562.0 MB in the end (delta: 403.7 MB). Free memory was 100.7 MB in the beginning and 389.6 MB in the end (delta: -288.9 MB). Peak memory consumption was 115.3 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: overapproximation of bitwiseOr at line 303. 
Possible FailurePath: 
[L625]              int __retres1 ;
[L629]  CALL        ssl3_connect()
[L11]               int s__info_callback  = __VERIFIER_nondet_int();
[L12]               unsigned int s__in_handshake  = __VERIFIER_nondet_uint();
[L13]               int s__state ;
[L14]               int s__new_session ;
[L15]               int s__server ;
[L16]               unsigned int s__version  = __VERIFIER_nondet_uint();
[L17]               int s__type ;
[L18]               int s__init_num ;
[L19]               int s__bbio  = __VERIFIER_nondet_int();
[L20]               int s__wbio  = __VERIFIER_nondet_int();
[L21]               int s__hit  = __VERIFIER_nondet_int();
[L22]               int s__rwstate ;
[L23]               int s__init_buf___0 ;
[L24]               int s__debug  = __VERIFIER_nondet_int();
[L25]               int s__shutdown ;
[L26]               int s__ctx__info_callback  = __VERIFIER_nondet_int();
[L27]               unsigned int s__ctx__stats__sess_connect_renegotiate ;
[L28]               unsigned int s__ctx__stats__sess_connect ;
[L29]               unsigned int s__ctx__stats__sess_hit  = __VERIFIER_nondet_uint();
[L30]               unsigned int s__ctx__stats__sess_connect_good  = __VERIFIER_nondet_uint();
[L31]               int s__s3__change_cipher_spec ;
[L32]               int s__s3__flags ;
[L33]               int s__s3__delay_buf_pop_ret ;
[L34]               int s__s3__tmp__cert_req  = __VERIFIER_nondet_int();
[L35]               int s__s3__tmp__new_compression  = __VERIFIER_nondet_int();
[L36]               int s__s3__tmp__reuse_message  = __VERIFIER_nondet_int();
[L37]               int s__s3__tmp__new_cipher  = __VERIFIER_nondet_int();
[L38]               int s__s3__tmp__new_cipher__algorithms  = __VERIFIER_nondet_int();
[L39]               int s__s3__tmp__next_state___0 ;
[L40]               int s__s3__tmp__new_compression__id  = __VERIFIER_nondet_int();
[L41]               int s__session__cipher ;
[L42]               int s__session__compress_meth ;
[L43]               int buf ;
[L44]               unsigned long tmp ;
[L45]               unsigned long l ;
[L46]               int num1 ;
[L47]               int cb ;
[L48]               int ret ;
[L49]               int new_state ;
[L50]               int state ;
[L51]               int skip ;
[L52]               int tmp___0 ;
[L53]               unsigned int tmp___1  = __VERIFIER_nondet_uint();
[L54]               unsigned int tmp___2  = __VERIFIER_nondet_uint();
[L55]               int tmp___3  = __VERIFIER_nondet_int();
[L56]               int tmp___4  = __VERIFIER_nondet_int();
[L57]               int tmp___5  = __VERIFIER_nondet_int();
[L58]               int tmp___6  = __VERIFIER_nondet_int();
[L59]               int tmp___7  = __VERIFIER_nondet_int();
[L60]               int tmp___8  = __VERIFIER_nondet_int();
[L61]               int tmp___9  = __VERIFIER_nondet_int();
[L62]               int blastFlag ;
[L63]               int ag_X ;
[L64]               int ag_Y ;
[L65]               int ag_Z ;
[L66]               int __retres60 ;
[L69]               s__state = 12292
[L70]               blastFlag = 0
[L71]               tmp = __VERIFIER_nondet_int()
[L72]               cb = 0
[L73]               ret = -1
[L74]               skip = 0
[L75]               tmp___0 = 0
[L76]   COND TRUE   s__info_callback != 0
[L77]               cb = s__info_callback
[L85]               s__in_handshake = s__in_handshake + 1
[L86]   COND FALSE  !(tmp___1 + 12288)
[L95]   COND TRUE   \read(s__hit)
[L96]               ag_Y = 208
[L101]  COND TRUE   1
[L103]              state = s__state
[L104]  COND TRUE   s__state == 12292
[L207]              s__new_session = 1
[L208]              s__state = 4096
[L209]              s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1
[L214]              s__server = 0
[L215]  COND TRUE   cb != 0
[L220]  COND FALSE  !(s__version + 65280 != 768)
[L226]              s__type = 4096
[L227]  COND FALSE  !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0))
[L245]  COND FALSE  !(! tmp___4)
[L251]  COND FALSE  !(! tmp___5)
[L257]              s__state = 4368
[L258]              s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1
[L259]              s__init_num = 0
[L574]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L603]              skip = 0
[L101]  COND TRUE   1
[L103]              state = s__state
[L104]  COND FALSE  !(s__state == 12292)
[L107]  COND FALSE  !(s__state == 16384)
[L110]  COND FALSE  !(s__state == 4096)
[L113]  COND FALSE  !(s__state == 20480)
[L116]  COND FALSE  !(s__state == 4099)
[L119]  COND TRUE   s__state == 4368
[L263]              s__shutdown = 0
[L264]              ret = __VERIFIER_nondet_int()
[L265]  COND TRUE   blastFlag == 0
[L266]              blastFlag = 1
[L270]  COND FALSE  !(ret <= 0)
[L275]              s__state = 4384
[L276]              ag_X = s__state - 32
[L277]              s__init_num = 0
[L278]  COND TRUE   (unsigned long )s__bbio != (unsigned long )s__wbio
[L574]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L603]              skip = 0
[L101]  COND TRUE   1
[L103]              state = s__state
[L104]  COND FALSE  !(s__state == 12292)
[L107]  COND FALSE  !(s__state == 16384)
[L110]  COND FALSE  !(s__state == 4096)
[L113]  COND FALSE  !(s__state == 20480)
[L116]  COND FALSE  !(s__state == 4099)
[L119]  COND FALSE  !(s__state == 4368)
[L122]  COND FALSE  !(s__state == 4369)
[L125]  COND TRUE   s__state == 4384
[L286]              ret = __VERIFIER_nondet_int()
[L287]  COND TRUE   blastFlag == 1
[L288]              blastFlag = 2
[L296]  COND FALSE  !(ret <= 0)
[L301]              s__state = ag_X
[L302]  COND TRUE   \read(s__hit)
[L303]              s__state = s__state | ag_Y
[L307]              s__init_num = 0
[L574]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L603]              skip = 0
[L101]  COND TRUE   1
[L103]              state = s__state
[L104]  COND FALSE  !(s__state == 12292)
[L107]  COND FALSE  !(s__state == 16384)
[L110]  COND FALSE  !(s__state == 4096)
[L113]  COND FALSE  !(s__state == 20480)
[L116]  COND FALSE  !(s__state == 4099)
[L119]  COND FALSE  !(s__state == 4368)
[L122]  COND FALSE  !(s__state == 4369)
[L125]  COND FALSE  !(s__state == 4384)
[L128]  COND FALSE  !(s__state == 4385)
[L131]  COND FALSE  !(s__state == 4400)
[L134]  COND FALSE  !(s__state == 4401)
[L137]  COND FALSE  !(s__state == 4416)
[L140]  COND FALSE  !(s__state == 4417)
[L143]  COND TRUE   s__state == 4432
[L353]              ret = __VERIFIER_nondet_int()
[L354]  COND TRUE   blastFlag <= 5
[L616]  CALL        reach_error()
[L3]                __assert_fail("0", "s3_clnt_3.BV.c.cil-2a.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 55.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5124 SDtfs, 7084 SDslu, 225 SDs, 0 SdLazy, 5096 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3142occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 1553 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...