java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c


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


This is Ultimate 0.1.23-dd2f093
[2018-07-24 13:22:05,947 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-07-24 13:22:05,949 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-07-24 13:22:05,963 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-07-24 13:22:05,963 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-07-24 13:22:05,964 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-07-24 13:22:05,965 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-07-24 13:22:05,967 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-07-24 13:22:05,969 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-07-24 13:22:05,970 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-07-24 13:22:05,971 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-07-24 13:22:05,971 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-07-24 13:22:05,972 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-07-24 13:22:05,973 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-07-24 13:22:05,974 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-07-24 13:22:05,975 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-07-24 13:22:05,976 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-07-24 13:22:05,980 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-07-24 13:22:05,982 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-07-24 13:22:05,986 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-07-24 13:22:05,990 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-07-24 13:22:05,994 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-07-24 13:22:05,997 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-07-24 13:22:05,997 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-07-24 13:22:05,997 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-07-24 13:22:05,998 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-07-24 13:22:05,999 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-07-24 13:22:06,000 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-07-24 13:22:06,000 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-07-24 13:22:06,001 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-07-24 13:22:06,002 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-07-24 13:22:06,002 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-07-24 13:22:06,002 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-07-24 13:22:06,003 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-07-24 13:22:06,004 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-07-24 13:22:06,004 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-07-24 13:22:06,005 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf
[2018-07-24 13:22:06,030 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-07-24 13:22:06,030 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-07-24 13:22:06,031 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-07-24 13:22:06,032 INFO  L133        SettingsManager]:  * User list type=DISABLED
[2018-07-24 13:22:06,032 INFO  L133        SettingsManager]:  * calls to implemented procedures=false
[2018-07-24 13:22:06,032 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-07-24 13:22:06,032 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2018-07-24 13:22:06,032 INFO  L133        SettingsManager]:  * Abstract domain=CompoundDomain
[2018-07-24 13:22:06,033 INFO  L133        SettingsManager]:  * Log string format=TERM
[2018-07-24 13:22:06,033 INFO  L133        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2018-07-24 13:22:06,033 INFO  L133        SettingsManager]:  * Interval Domain=false
[2018-07-24 13:22:06,034 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-07-24 13:22:06,034 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-07-24 13:22:06,035 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-07-24 13:22:06,035 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-07-24 13:22:06,035 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-07-24 13:22:06,035 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-07-24 13:22:06,035 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-07-24 13:22:06,036 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-07-24 13:22:06,036 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-07-24 13:22:06,036 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-07-24 13:22:06,036 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-07-24 13:22:06,038 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-07-24 13:22:06,038 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-07-24 13:22:06,038 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-07-24 13:22:06,039 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-07-24 13:22:06,039 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-07-24 13:22:06,039 INFO  L133        SettingsManager]:  * Trace refinement strategy=RUBBER_TAIPAN
[2018-07-24 13:22:06,039 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-07-24 13:22:06,039 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-07-24 13:22:06,040 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-07-24 13:22:06,040 INFO  L133        SettingsManager]:  * To the following directory=dump/
[2018-07-24 13:22:06,040 INFO  L133        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2018-07-24 13:22:06,090 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-07-24 13:22:06,103 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-07-24 13:22:06,107 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-07-24 13:22:06,109 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-07-24 13:22:06,109 INFO  L276        PluginConnector]: CDTParser initialized
[2018-07-24 13:22:06,110 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c
[2018-07-24 13:22:06,449 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba543f0b/9aa6d8e028fd4c4981b6026ebb9ecaea/FLAGd5fe60f5b
[2018-07-24 13:22:07,057 INFO  L276              CDTParser]: Found 1 translation units.
[2018-07-24 13:22:07,058 INFO  L158              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label49_true-unreach-call.c
[2018-07-24 13:22:07,110 INFO  L324              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba543f0b/9aa6d8e028fd4c4981b6026ebb9ecaea/FLAGd5fe60f5b
[2018-07-24 13:22:07,131 INFO  L332              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba543f0b/9aa6d8e028fd4c4981b6026ebb9ecaea
[2018-07-24 13:22:07,146 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-07-24 13:22:07,147 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-07-24 13:22:07,148 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-07-24 13:22:07,148 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-07-24 13:22:07,157 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-07-24 13:22:07,158 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:22:07" (1/1) ...
[2018-07-24 13:22:07,162 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:07, skipping insertion in model container
[2018-07-24 13:22:07,162 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:22:07" (1/1) ...
[2018-07-24 13:22:07,694 INFO  L179           PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode 
[2018-07-24 13:22:09,384 INFO  L175          PostProcessor]: Settings: Checked method=main
[2018-07-24 13:22:09,408 INFO  L422         MainDispatcher]: Starting main dispatcher in SV-COMP mode 
[2018-07-24 13:22:10,734 INFO  L175          PostProcessor]: Settings: Checked method=main
[2018-07-24 13:22:10,978 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10 WrapperNode
[2018-07-24 13:22:10,978 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-07-24 13:22:10,980 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-07-24 13:22:10,980 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-07-24 13:22:10,980 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-07-24 13:22:10,990 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:11,082 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:11,365 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-07-24 13:22:11,365 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-07-24 13:22:11,366 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-07-24 13:22:11,366 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-07-24 13:22:11,967 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:11,968 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,015 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,016 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,194 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,258 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,325 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (1/1) ...
[2018-07-24 13:22:12,379 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-07-24 13:22:12,380 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-07-24 13:22:12,380 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-07-24 13:22:12,380 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-07-24 13:22:12,382 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (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
[2018-07-24 13:22:12,454 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-07-24 13:22:12,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-07-24 13:22:12,455 INFO  L130     BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5
[2018-07-24 13:22:12,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5
[2018-07-24 13:22:12,455 INFO  L130     BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output
[2018-07-24 13:22:12,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output
[2018-07-24 13:22:12,456 INFO  L130     BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3
[2018-07-24 13:22:12,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3
[2018-07-24 13:22:12,456 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-07-24 13:22:12,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-07-24 13:22:12,457 INFO  L130     BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4
[2018-07-24 13:22:12,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4
[2018-07-24 13:22:12,457 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2018-07-24 13:22:12,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2018-07-24 13:22:12,458 INFO  L130     BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2
[2018-07-24 13:22:12,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2
[2018-07-24 13:22:24,983 INFO  L261             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-07-24 13:22:24,984 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:22:24 BoogieIcfgContainer
[2018-07-24 13:22:24,984 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-07-24 13:22:24,985 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-07-24 13:22:24,985 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-07-24 13:22:24,988 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-07-24 13:22:24,989 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:22:07" (1/3) ...
[2018-07-24 13:22:24,989 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e960ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:22:24, skipping insertion in model container
[2018-07-24 13:22:24,990 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:10" (2/3) ...
[2018-07-24 13:22:24,990 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e960ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:22:24, skipping insertion in model container
[2018-07-24 13:22:24,990 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:22:24" (3/3) ...
[2018-07-24 13:22:24,992 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem06_label49_true-unreach-call.c
[2018-07-24 13:22:25,000 INFO  L132   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-07-24 13:22:25,010 INFO  L144   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-07-24 13:22:25,075 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2018-07-24 13:22:25,076 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2018-07-24 13:22:25,076 INFO  L374      AbstractCegarLoop]: Hoare is true
[2018-07-24 13:22:25,076 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-07-24 13:22:25,076 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-07-24 13:22:25,076 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-07-24 13:22:25,076 INFO  L378      AbstractCegarLoop]: Difference is false
[2018-07-24 13:22:25,077 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-07-24 13:22:25,077 INFO  L384      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-07-24 13:22:25,120 INFO  L276                IsEmpty]: Start isEmpty. Operand 1316 states.
[2018-07-24 13:22:25,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1006
[2018-07-24 13:22:25,209 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:22:25,212 INFO  L353         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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:22:25,213 INFO  L414      AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:22:25,219 INFO  L82        PathProgramCache]: Analyzing trace with hash -318199043, now seen corresponding path program 1 times
[2018-07-24 13:22:25,223 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:22:25,275 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:25,275 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:22:25,276 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:25,276 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:22:25,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:22:27,305 WARN  L169               SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4
[2018-07-24 13:22:28,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:22:28,585 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-24 13:22:28,585 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-07-24 13:22:28,585 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-24 13:22:28,593 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-07-24 13:22:28,605 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-07-24 13:22:28,606 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-24 13:22:28,608 INFO  L87              Difference]: Start difference. First operand 1316 states. Second operand 3 states.
[2018-07-24 13:22:37,804 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-24 13:22:37,806 INFO  L93              Difference]: Finished difference Result 3747 states and 6996 transitions.
[2018-07-24 13:22:37,806 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-07-24 13:22:37,808 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 1005
[2018-07-24 13:22:37,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-24 13:22:37,860 INFO  L225             Difference]: With dead ends: 3747
[2018-07-24 13:22:37,860 INFO  L226             Difference]: Without dead ends: 2429
[2018-07-24 13:22:37,876 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-24 13:22:37,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2429 states.
[2018-07-24 13:22:38,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2407.
[2018-07-24 13:22:38,044 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2407 states.
[2018-07-24 13:22:38,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4264 transitions.
[2018-07-24 13:22:38,060 INFO  L78                 Accepts]: Start accepts. Automaton has 2407 states and 4264 transitions. Word has length 1005
[2018-07-24 13:22:38,065 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-24 13:22:38,066 INFO  L471      AbstractCegarLoop]: Abstraction has 2407 states and 4264 transitions.
[2018-07-24 13:22:38,066 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-07-24 13:22:38,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 2407 states and 4264 transitions.
[2018-07-24 13:22:38,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1015
[2018-07-24 13:22:38,108 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:22:38,109 INFO  L353         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:22:38,109 INFO  L414      AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:22:38,110 INFO  L82        PathProgramCache]: Analyzing trace with hash 126607241, now seen corresponding path program 1 times
[2018-07-24 13:22:38,110 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:22:38,112 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:38,112 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:22:38,112 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:38,112 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:22:38,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:22:38,528 WARN  L169               SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4
[2018-07-24 13:22:39,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:22:39,277 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-24 13:22:39,277 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2018-07-24 13:22:39,277 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-24 13:22:39,280 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 5 states
[2018-07-24 13:22:39,281 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-07-24 13:22:39,281 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2018-07-24 13:22:39,281 INFO  L87              Difference]: Start difference. First operand 2407 states and 4264 transitions. Second operand 5 states.
[2018-07-24 13:22:45,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-24 13:22:45,706 INFO  L93              Difference]: Finished difference Result 7230 states and 12898 transitions.
[2018-07-24 13:22:45,707 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2018-07-24 13:22:45,707 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 1014
[2018-07-24 13:22:45,707 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-24 13:22:45,747 INFO  L225             Difference]: With dead ends: 7230
[2018-07-24 13:22:45,747 INFO  L226             Difference]: Without dead ends: 4829
[2018-07-24 13:22:45,756 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2018-07-24 13:22:45,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4829 states.
[2018-07-24 13:22:45,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4765.
[2018-07-24 13:22:45,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4765 states.
[2018-07-24 13:22:45,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4765 states to 4765 states and 8477 transitions.
[2018-07-24 13:22:45,954 INFO  L78                 Accepts]: Start accepts. Automaton has 4765 states and 8477 transitions. Word has length 1014
[2018-07-24 13:22:45,955 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-24 13:22:45,955 INFO  L471      AbstractCegarLoop]: Abstraction has 4765 states and 8477 transitions.
[2018-07-24 13:22:45,955 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2018-07-24 13:22:45,955 INFO  L276                IsEmpty]: Start isEmpty. Operand 4765 states and 8477 transitions.
[2018-07-24 13:22:45,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1020
[2018-07-24 13:22:45,992 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:22:45,993 INFO  L353         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:22:45,994 INFO  L414      AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:22:45,994 INFO  L82        PathProgramCache]: Analyzing trace with hash -949474753, now seen corresponding path program 1 times
[2018-07-24 13:22:45,995 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:22:45,996 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:45,996 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:22:45,997 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:45,997 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:22:46,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:22:48,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:22:48,649 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-24 13:22:48,650 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-07-24 13:22:48,650 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-24 13:22:48,651 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-07-24 13:22:48,652 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-07-24 13:22:48,652 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-24 13:22:48,652 INFO  L87              Difference]: Start difference. First operand 4765 states and 8477 transitions. Second operand 3 states.
[2018-07-24 13:22:57,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-24 13:22:57,318 INFO  L93              Difference]: Finished difference Result 13725 states and 24965 transitions.
[2018-07-24 13:22:57,319 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-07-24 13:22:57,319 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 1019
[2018-07-24 13:22:57,324 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-24 13:22:57,374 INFO  L225             Difference]: With dead ends: 13725
[2018-07-24 13:22:57,375 INFO  L226             Difference]: Without dead ends: 8966
[2018-07-24 13:22:57,391 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-24 13:22:57,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8966 states.
[2018-07-24 13:22:57,634 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 8938.
[2018-07-24 13:22:57,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8938 states.
[2018-07-24 13:22:57,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 15028 transitions.
[2018-07-24 13:22:57,667 INFO  L78                 Accepts]: Start accepts. Automaton has 8938 states and 15028 transitions. Word has length 1019
[2018-07-24 13:22:57,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-24 13:22:57,669 INFO  L471      AbstractCegarLoop]: Abstraction has 8938 states and 15028 transitions.
[2018-07-24 13:22:57,669 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-07-24 13:22:57,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 8938 states and 15028 transitions.
[2018-07-24 13:22:57,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1037
[2018-07-24 13:22:57,717 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:22:57,718 INFO  L353         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:22:57,718 INFO  L414      AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:22:57,719 INFO  L82        PathProgramCache]: Analyzing trace with hash 1131694999, now seen corresponding path program 1 times
[2018-07-24 13:22:57,719 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:22:57,720 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:57,721 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:22:57,721 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:22:57,721 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:22:57,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:22:58,748 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:22:58,748 INFO  L297   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-07-24 13:22:58,748 INFO  L191   anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-07-24 13:22:58,761 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:22:58,762 INFO  L288   anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP)
[2018-07-24 13:22:59,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:22:59,501 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-07-24 13:23:00,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:23:00,460 INFO  L316         TraceCheckSpWp]: Computing backward predicates...
[2018-07-24 13:23:01,301 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:23:01,337 INFO  L297   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-07-24 13:23:01,337 INFO  L191   anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu
Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000
[2018-07-24 13:23:01,354 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:23:01,354 INFO  L288   anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP)
[2018-07-24 13:23:02,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:23:02,966 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-07-24 13:23:04,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:23:04,335 INFO  L316         TraceCheckSpWp]: Computing backward predicates...
[2018-07-24 13:23:05,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-24 13:23:05,303 INFO  L309   seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences.
[2018-07-24 13:23:05,304 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 14
[2018-07-24 13:23:05,304 INFO  L251   anRefinementStrategy]: Using the first two imperfect interpolant sequences
[2018-07-24 13:23:05,309 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 8 states
[2018-07-24 13:23:05,309 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2018-07-24 13:23:05,310 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2018-07-24 13:23:05,310 INFO  L87              Difference]: Start difference. First operand 8938 states and 15028 transitions. Second operand 8 states.
[2018-07-24 13:23:06,279 WARN  L169               SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9
[2018-07-24 13:23:32,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-24 13:23:32,985 INFO  L93              Difference]: Finished difference Result 46360 states and 88338 transitions.
[2018-07-24 13:23:32,986 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. 
[2018-07-24 13:23:32,986 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 1036
[2018-07-24 13:23:32,986 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-24 13:23:33,198 INFO  L225             Difference]: With dead ends: 46360
[2018-07-24 13:23:33,198 INFO  L226             Difference]: Without dead ends: 37428
[2018-07-24 13:23:33,249 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 4189 GetRequests, 4142 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=417, Invalid=1745, Unknown=0, NotChecked=0, Total=2162
[2018-07-24 13:23:33,280 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37428 states.
[2018-07-24 13:23:34,321 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37428 to 36541.
[2018-07-24 13:23:34,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 36541 states.
[2018-07-24 13:23:34,432 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36541 states to 36541 states and 60842 transitions.
[2018-07-24 13:23:34,432 INFO  L78                 Accepts]: Start accepts. Automaton has 36541 states and 60842 transitions. Word has length 1036
[2018-07-24 13:23:34,433 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-24 13:23:34,433 INFO  L471      AbstractCegarLoop]: Abstraction has 36541 states and 60842 transitions.
[2018-07-24 13:23:34,433 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2018-07-24 13:23:34,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 36541 states and 60842 transitions.
[2018-07-24 13:23:34,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1168
[2018-07-24 13:23:34,591 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:23:34,593 INFO  L353         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:23:34,593 INFO  L414      AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:23:34,593 INFO  L82        PathProgramCache]: Analyzing trace with hash 2115626973, now seen corresponding path program 1 times
[2018-07-24 13:23:34,594 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:23:34,595 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:23:34,595 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:23:34,595 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:23:34,595 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:23:34,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:23:36,275 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 157 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2018-07-24 13:23:36,276 INFO  L297   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-07-24 13:23:36,276 INFO  L191   anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-07-24 13:23:36,286 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:23:36,286 INFO  L288   anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP)
[2018-07-24 13:23:37,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:23:37,248 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-07-24 13:23:37,796 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2018-07-24 13:23:37,796 INFO  L316         TraceCheckSpWp]: Computing backward predicates...
[2018-07-24 13:23:38,754 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 167 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2018-07-24 13:23:38,779 INFO  L297   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-07-24 13:23:38,779 INFO  L191   anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu
Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000
[2018-07-24 13:23:38,796 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:23:38,796 INFO  L288   anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP)
[2018-07-24 13:23:40,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:23:40,642 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-07-24 13:23:41,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2018-07-24 13:23:41,282 INFO  L316         TraceCheckSpWp]: Computing backward predicates...
[2018-07-24 13:23:42,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 167 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2018-07-24 13:23:42,143 INFO  L309   seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences.
[2018-07-24 13:23:42,145 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5, 5, 5] total 20
[2018-07-24 13:23:42,145 INFO  L251   anRefinementStrategy]: Using the first two imperfect interpolant sequences
[2018-07-24 13:23:42,147 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 13 states
[2018-07-24 13:23:42,147 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2018-07-24 13:23:42,148 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380
[2018-07-24 13:23:42,148 INFO  L87              Difference]: Start difference. First operand 36541 states and 60842 transitions. Second operand 13 states.
[2018-07-24 13:24:34,575 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-24 13:24:34,575 INFO  L93              Difference]: Finished difference Result 360209 states and 951278 transitions.
[2018-07-24 13:24:34,576 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. 
[2018-07-24 13:24:34,576 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 1167
[2018-07-24 13:24:34,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-24 13:24:38,046 INFO  L225             Difference]: With dead ends: 360209
[2018-07-24 13:24:38,046 INFO  L226             Difference]: Without dead ends: 323674
[2018-07-24 13:24:38,309 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 4781 GetRequests, 4709 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=864, Invalid=4248, Unknown=0, NotChecked=0, Total=5112
[2018-07-24 13:24:38,498 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323674 states.
[2018-07-24 13:24:49,359 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323674 to 321467.
[2018-07-24 13:24:49,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 321467 states.
[2018-07-24 13:25:04,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 321467 states to 321467 states and 708434 transitions.
[2018-07-24 13:25:04,707 INFO  L78                 Accepts]: Start accepts. Automaton has 321467 states and 708434 transitions. Word has length 1167
[2018-07-24 13:25:04,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-24 13:25:04,707 INFO  L471      AbstractCegarLoop]: Abstraction has 321467 states and 708434 transitions.
[2018-07-24 13:25:04,708 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2018-07-24 13:25:04,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 321467 states and 708434 transitions.
[2018-07-24 13:25:07,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1173
[2018-07-24 13:25:07,660 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-24 13:25:07,661 INFO  L353         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-07-24 13:25:07,662 INFO  L414      AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5Err0AssertViolationERROR_FUNCTION]===
[2018-07-24 13:25:07,663 INFO  L82        PathProgramCache]: Analyzing trace with hash 1519591198, now seen corresponding path program 1 times
[2018-07-24 13:25:07,663 INFO  L69    tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy
[2018-07-24 13:25:07,665 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:25:07,665 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-24 13:25:07,665 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-24 13:25:07,665 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-24 13:25:09,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-24 13:25:12,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 207 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2018-07-24 13:25:12,714 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-24 13:25:12,714 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2018-07-24 13:25:12,714 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-24 13:25:12,715 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-07-24 13:25:12,715 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-07-24 13:25:12,715 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-07-24 13:25:12,715 INFO  L87              Difference]: Start difference. First operand 321467 states and 708434 transitions. Second operand 4 states.