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/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c


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


This is Ultimate 0.1.23-dd2f093
[2018-07-23 23:23:40,998 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-07-23 23:23:41,002 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
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[2018-07-23 23:23:41,024 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-07-23 23:23:41,025 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-07-23 23:23:41,028 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2018-07-23 23:23:41,054 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-07-23 23:23:41,055 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-07-23 23:23:41,060 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-07-23 23:23:41,065 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-07-23 23:23:41,067 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-07-23 23:23:41,068 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-07-23 23:23:41,071 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-07-23 23:23:41,075 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2018-07-23 23:23:41,076 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-07-23 23:23:41,077 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-07-23 23:23:41,078 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-07-23 23:23:41,080 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
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[2018-07-23 23:23:41,087 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
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[2018-07-23 23:23:41,091 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-07-23 23:23:41,091 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf
[2018-07-23 23:23:41,119 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-07-23 23:23:41,120 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-07-23 23:23:41,121 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-07-23 23:23:41,121 INFO  L133        SettingsManager]:  * User list type=DISABLED
[2018-07-23 23:23:41,121 INFO  L133        SettingsManager]:  * calls to implemented procedures=false
[2018-07-23 23:23:41,122 INFO  L131        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-07-23 23:23:41,122 INFO  L133        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2018-07-23 23:23:41,122 INFO  L133        SettingsManager]:  * Abstract domain=CompoundDomain
[2018-07-23 23:23:41,122 INFO  L133        SettingsManager]:  * Log string format=TERM
[2018-07-23 23:23:41,123 INFO  L133        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2018-07-23 23:23:41,123 INFO  L133        SettingsManager]:  * Interval Domain=false
[2018-07-23 23:23:41,124 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-07-23 23:23:41,124 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-07-23 23:23:41,124 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-07-23 23:23:41,125 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-07-23 23:23:41,126 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-07-23 23:23:41,126 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-07-23 23:23:41,126 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-07-23 23:23:41,126 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-07-23 23:23:41,127 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-07-23 23:23:41,127 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-07-23 23:23:41,127 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-07-23 23:23:41,127 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-07-23 23:23:41,128 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-07-23 23:23:41,128 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-07-23 23:23:41,128 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-07-23 23:23:41,129 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-07-23 23:23:41,130 INFO  L133        SettingsManager]:  * Trace refinement strategy=TAIPAN
[2018-07-23 23:23:41,130 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-07-23 23:23:41,130 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-07-23 23:23:41,130 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-07-23 23:23:41,131 INFO  L133        SettingsManager]:  * To the following directory=dump/
[2018-07-23 23:23:41,131 INFO  L133        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2018-07-23 23:23:41,212 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-07-23 23:23:41,235 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-07-23 23:23:41,243 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-07-23 23:23:41,245 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-07-23 23:23:41,245 INFO  L276        PluginConnector]: CDTParser initialized
[2018-07-23 23:23:41,246 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c
[2018-07-23 23:23:41,607 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba196c7c8/2036474cdf1d4cef8aea612c79efb166/FLAGc5060d1cd
[2018-07-23 23:23:42,202 INFO  L276              CDTParser]: Found 1 translation units.
[2018-07-23 23:23:42,202 INFO  L158              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c
[2018-07-23 23:23:42,257 INFO  L324              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba196c7c8/2036474cdf1d4cef8aea612c79efb166/FLAGc5060d1cd
[2018-07-23 23:23:42,281 INFO  L332              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba196c7c8/2036474cdf1d4cef8aea612c79efb166
[2018-07-23 23:23:42,294 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-07-23 23:23:42,296 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2018-07-23 23:23:42,297 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-07-23 23:23:42,298 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-07-23 23:23:42,306 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-07-23 23:23:42,307 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:23:42" (1/1) ...
[2018-07-23 23:23:42,312 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4632f630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:42, skipping insertion in model container
[2018-07-23 23:23:42,312 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:23:42" (1/1) ...
[2018-07-23 23:23:42,819 INFO  L179           PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode 
[2018-07-23 23:23:44,947 INFO  L175          PostProcessor]: Settings: Checked method=main
[2018-07-23 23:23:44,969 INFO  L422         MainDispatcher]: Starting main dispatcher in SV-COMP mode 
[2018-07-23 23:23:46,235 INFO  L175          PostProcessor]: Settings: Checked method=main
[2018-07-23 23:23:46,843 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46 WrapperNode
[2018-07-23 23:23:46,843 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-07-23 23:23:46,844 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-07-23 23:23:46,844 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-07-23 23:23:46,845 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-07-23 23:23:46,855 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:47,019 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:47,209 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-07-23 23:23:47,210 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-07-23 23:23:47,210 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-07-23 23:23:47,210 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-07-23 23:23:48,289 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,289 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,392 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,392 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,591 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,656 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,761 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (1/1) ...
[2018-07-23 23:23:48,859 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-07-23 23:23:48,859 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-07-23 23:23:48,859 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-07-23 23:23:48,860 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-07-23 23:23:48,860 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (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
[2018-07-23 23:23:48,913 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-07-23 23:23:48,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-07-23 23:23:48,913 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
[2018-07-23 23:23:48,913 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
[2018-07-23 23:23:48,913 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
[2018-07-23 23:23:48,914 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
[2018-07-23 23:23:48,914 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_output6
[2018-07-23 23:23:48,914 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_output6
[2018-07-23 23:23:48,914 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
[2018-07-23 23:23:48,914 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
[2018-07-23 23:23:48,914 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-07-23 23:23:48,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-07-23 23:23:48,915 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
[2018-07-23 23:23:48,915 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
[2018-07-23 23:23:48,916 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2018-07-23 23:23:48,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2018-07-23 23:23:48,916 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
[2018-07-23 23:23:48,916 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
[2018-07-23 23:24:08,576 INFO  L261             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-07-23 23:24:08,577 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:24:08 BoogieIcfgContainer
[2018-07-23 23:24:08,577 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-07-23 23:24:08,578 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-07-23 23:24:08,578 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-07-23 23:24:08,581 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-07-23 23:24:08,582 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:23:42" (1/3) ...
[2018-07-23 23:24:08,583 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17255bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:24:08, skipping insertion in model container
[2018-07-23 23:24:08,583 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:23:46" (2/3) ...
[2018-07-23 23:24:08,583 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17255bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:24:08, skipping insertion in model container
[2018-07-23 23:24:08,583 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:24:08" (3/3) ...
[2018-07-23 23:24:08,585 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem19_label54_true-unreach-call.c
[2018-07-23 23:24:08,595 INFO  L132   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-07-23 23:24:08,608 INFO  L144   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-07-23 23:24:08,675 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2018-07-23 23:24:08,676 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2018-07-23 23:24:08,676 INFO  L374      AbstractCegarLoop]: Hoare is true
[2018-07-23 23:24:08,677 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-07-23 23:24:08,677 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-07-23 23:24:08,677 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-07-23 23:24:08,677 INFO  L378      AbstractCegarLoop]: Difference is false
[2018-07-23 23:24:08,677 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-07-23 23:24:08,677 INFO  L384      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-07-23 23:24:08,730 INFO  L276                IsEmpty]: Start isEmpty. Operand 1778 states.
[2018-07-23 23:24:08,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2018-07-23 23:24:08,749 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:24:08,751 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]
[2018-07-23 23:24:08,752 INFO  L414      AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:24:08,757 INFO  L82        PathProgramCache]: Analyzing trace with hash -1174165856, now seen corresponding path program 1 times
[2018-07-23 23:24:08,760 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:24:08,812 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:24:08,813 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:24:08,813 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:24:08,813 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:24:08,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:24:09,232 WARN  L169               SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4
[2018-07-23 23:24:09,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-23 23:24:09,370 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-23 23:24:09,370 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-07-23 23:24:09,370 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-23 23:24:09,377 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-07-23 23:24:09,395 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-07-23 23:24:09,395 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-23 23:24:09,399 INFO  L87              Difference]: Start difference. First operand 1778 states. Second operand 3 states.
[2018-07-23 23:24:27,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-23 23:24:27,126 INFO  L93              Difference]: Finished difference Result 5049 states and 9513 transitions.
[2018-07-23 23:24:27,127 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-07-23 23:24:27,128 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 71
[2018-07-23 23:24:27,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-23 23:24:27,182 INFO  L225             Difference]: With dead ends: 5049
[2018-07-23 23:24:27,183 INFO  L226             Difference]: Without dead ends: 3269
[2018-07-23 23:24:27,200 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-07-23 23:24:27,224 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3269 states.
[2018-07-23 23:24:27,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3218.
[2018-07-23 23:24:27,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3218 states.
[2018-07-23 23:24:27,422 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5997 transitions.
[2018-07-23 23:24:27,425 INFO  L78                 Accepts]: Start accepts. Automaton has 3218 states and 5997 transitions. Word has length 71
[2018-07-23 23:24:27,426 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-23 23:24:27,426 INFO  L471      AbstractCegarLoop]: Abstraction has 3218 states and 5997 transitions.
[2018-07-23 23:24:27,426 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-07-23 23:24:27,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 3218 states and 5997 transitions.
[2018-07-23 23:24:27,435 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2018-07-23 23:24:27,435 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:24:27,435 INFO  L353         BasicCegarLoop]: trace histogram [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]
[2018-07-23 23:24:27,436 INFO  L414      AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:24:27,436 INFO  L82        PathProgramCache]: Analyzing trace with hash 1061310538, now seen corresponding path program 1 times
[2018-07-23 23:24:27,436 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:24:27,437 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:24:27,438 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:24:27,438 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:24:27,438 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:24:27,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:24:27,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-23 23:24:27,992 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-23 23:24:27,993 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-07-23 23:24:27,993 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-23 23:24:27,995 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-07-23 23:24:27,995 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-07-23 23:24:27,995 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2018-07-23 23:24:27,996 INFO  L87              Difference]: Start difference. First operand 3218 states and 5997 transitions. Second operand 6 states.
[2018-07-23 23:25:05,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-23 23:25:05,148 INFO  L93              Difference]: Finished difference Result 9679 states and 18107 transitions.
[2018-07-23 23:25:05,149 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2018-07-23 23:25:05,149 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 143
[2018-07-23 23:25:05,149 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-23 23:25:05,193 INFO  L225             Difference]: With dead ends: 9679
[2018-07-23 23:25:05,193 INFO  L226             Difference]: Without dead ends: 6467
[2018-07-23 23:25:05,205 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2018-07-23 23:25:05,213 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6467 states.
[2018-07-23 23:25:05,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6363.
[2018-07-23 23:25:05,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6363 states.
[2018-07-23 23:25:05,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 10122 transitions.
[2018-07-23 23:25:05,424 INFO  L78                 Accepts]: Start accepts. Automaton has 6363 states and 10122 transitions. Word has length 143
[2018-07-23 23:25:05,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-23 23:25:05,425 INFO  L471      AbstractCegarLoop]: Abstraction has 6363 states and 10122 transitions.
[2018-07-23 23:25:05,425 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-07-23 23:25:05,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 6363 states and 10122 transitions.
[2018-07-23 23:25:05,431 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2018-07-23 23:25:05,432 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:25:05,432 INFO  L353         BasicCegarLoop]: trace histogram [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]
[2018-07-23 23:25:05,433 INFO  L414      AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:25:05,433 INFO  L82        PathProgramCache]: Analyzing trace with hash 478969252, now seen corresponding path program 1 times
[2018-07-23 23:25:05,433 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:25:05,434 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:05,434 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:25:05,434 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:05,435 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:25:05,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:25:05,758 WARN  L169               SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4
[2018-07-23 23:25:05,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-23 23:25:05,961 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-23 23:25:05,961 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-07-23 23:25:05,961 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-23 23:25:05,962 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-07-23 23:25:05,962 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-07-23 23:25:05,962 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2018-07-23 23:25:05,963 INFO  L87              Difference]: Start difference. First operand 6363 states and 10122 transitions. Second operand 6 states.
[2018-07-23 23:25:23,491 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-23 23:25:23,491 INFO  L93              Difference]: Finished difference Result 18762 states and 30589 transitions.
[2018-07-23 23:25:23,494 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2018-07-23 23:25:23,495 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 150
[2018-07-23 23:25:23,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-23 23:25:23,556 INFO  L225             Difference]: With dead ends: 18762
[2018-07-23 23:25:23,557 INFO  L226             Difference]: Without dead ends: 12405
[2018-07-23 23:25:23,578 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2018-07-23 23:25:23,590 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12405 states.
[2018-07-23 23:25:23,830 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12405 to 12198.
[2018-07-23 23:25:23,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 12198 states.
[2018-07-23 23:25:24,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12198 states to 12198 states and 19173 transitions.
[2018-07-23 23:25:24,295 INFO  L78                 Accepts]: Start accepts. Automaton has 12198 states and 19173 transitions. Word has length 150
[2018-07-23 23:25:24,295 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-23 23:25:24,296 INFO  L471      AbstractCegarLoop]: Abstraction has 12198 states and 19173 transitions.
[2018-07-23 23:25:24,296 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-07-23 23:25:24,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 12198 states and 19173 transitions.
[2018-07-23 23:25:24,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2018-07-23 23:25:24,301 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:25:24,301 INFO  L353         BasicCegarLoop]: trace histogram [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]
[2018-07-23 23:25:24,302 INFO  L414      AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:25:24,308 INFO  L82        PathProgramCache]: Analyzing trace with hash 2079698610, now seen corresponding path program 1 times
[2018-07-23 23:25:24,308 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:25:24,309 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:24,309 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:25:24,309 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:24,309 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:25:24,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:25:24,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-23 23:25:24,810 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-23 23:25:24,810 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-07-23 23:25:24,810 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-23 23:25:24,811 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-07-23 23:25:24,811 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-07-23 23:25:24,812 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2018-07-23 23:25:24,812 INFO  L87              Difference]: Start difference. First operand 12198 states and 19173 transitions. Second operand 6 states.
[2018-07-23 23:25:50,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-23 23:25:50,821 INFO  L93              Difference]: Finished difference Result 36802 states and 59015 transitions.
[2018-07-23 23:25:50,824 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2018-07-23 23:25:50,824 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 158
[2018-07-23 23:25:50,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-23 23:25:50,929 INFO  L225             Difference]: With dead ends: 36802
[2018-07-23 23:25:50,929 INFO  L226             Difference]: Without dead ends: 24610
[2018-07-23 23:25:50,974 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2018-07-23 23:25:51,002 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24610 states.
[2018-07-23 23:25:51,551 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24610 to 24108.
[2018-07-23 23:25:51,551 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 24108 states.
[2018-07-23 23:25:51,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24108 states to 24108 states and 36201 transitions.
[2018-07-23 23:25:51,626 INFO  L78                 Accepts]: Start accepts. Automaton has 24108 states and 36201 transitions. Word has length 158
[2018-07-23 23:25:51,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-23 23:25:51,627 INFO  L471      AbstractCegarLoop]: Abstraction has 24108 states and 36201 transitions.
[2018-07-23 23:25:51,627 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-07-23 23:25:51,627 INFO  L276                IsEmpty]: Start isEmpty. Operand 24108 states and 36201 transitions.
[2018-07-23 23:25:51,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2018-07-23 23:25:51,632 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:25:51,632 INFO  L353         BasicCegarLoop]: trace histogram [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]
[2018-07-23 23:25:51,632 INFO  L414      AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:25:51,633 INFO  L82        PathProgramCache]: Analyzing trace with hash 2015304975, now seen corresponding path program 1 times
[2018-07-23 23:25:51,633 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:25:51,634 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:51,634 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:25:51,634 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:25:51,635 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:25:51,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:25:52,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-07-23 23:25:52,586 INFO  L309   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-07-23 23:25:52,586 INFO  L324   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-07-23 23:25:52,587 INFO  L258   anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-07-23 23:25:52,587 INFO  L450      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-07-23 23:25:52,588 INFO  L132   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-07-23 23:25:52,588 INFO  L133   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2018-07-23 23:25:52,588 INFO  L87              Difference]: Start difference. First operand 24108 states and 36201 transitions. Second operand 6 states.
[2018-07-23 23:26:43,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-07-23 23:26:43,624 INFO  L93              Difference]: Finished difference Result 88842 states and 148993 transitions.
[2018-07-23 23:26:43,625 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2018-07-23 23:26:43,625 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 234
[2018-07-23 23:26:43,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-07-23 23:26:43,841 INFO  L225             Difference]: With dead ends: 88842
[2018-07-23 23:26:43,842 INFO  L226             Difference]: Without dead ends: 64740
[2018-07-23 23:26:43,953 INFO  L573         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2018-07-23 23:26:43,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64740 states.
[2018-07-23 23:26:45,084 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64740 to 64291.
[2018-07-23 23:26:45,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 64291 states.
[2018-07-23 23:26:45,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64291 states to 64291 states and 94135 transitions.
[2018-07-23 23:26:45,266 INFO  L78                 Accepts]: Start accepts. Automaton has 64291 states and 94135 transitions. Word has length 234
[2018-07-23 23:26:45,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-07-23 23:26:45,266 INFO  L471      AbstractCegarLoop]: Abstraction has 64291 states and 94135 transitions.
[2018-07-23 23:26:45,267 INFO  L472      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-07-23 23:26:45,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 64291 states and 94135 transitions.
[2018-07-23 23:26:45,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 568
[2018-07-23 23:26:45,280 INFO  L345         BasicCegarLoop]: Found error trace
[2018-07-23 23:26:45,280 INFO  L353         BasicCegarLoop]: trace histogram [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]
[2018-07-23 23:26:45,281 INFO  L414      AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]===
[2018-07-23 23:26:45,281 INFO  L82        PathProgramCache]: Analyzing trace with hash -1849220924, now seen corresponding path program 1 times
[2018-07-23 23:26:45,281 INFO  L69    tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-07-23 23:26:45,282 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:26:45,282 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-07-23 23:26:45,282 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-07-23 23:26:45,282 INFO  L288   anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-07-23 23:26:45,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-07-23 23:26:45,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2018-07-23 23:26:45,985 INFO  L297   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-07-23 23:26:45,985 INFO  L191   anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION
[2018-07-23 23:26:45,986 INFO  L199      CegarAbsIntRunner]: Running AI on error trace of length 568 with the following transitions: 
[2018-07-23 23:26:45,990 INFO  L201      CegarAbsIntRunner]: [0], [1], [1075], [1082], [1090], [1098], [1106], [1114], [1122], [1130], [1138], [1146], [1154], [1162], [1170], [1178], [1186], [1194], [1202], [1210], [1218], [1226], [1234], [1242], [1250], [1258], [1266], [1274], [1282], [1290], [1298], [1306], [1314], [1322], [1330], [1338], [1346], [1354], [1362], [1370], [1378], [1386], [1394], [1402], [1410], [1418], [1426], [1434], [1442], [1450], [1458], [1466], [1474], [1482], [1490], [1498], [1506], [1514], [1522], [1530], [1538], [1542], [1544], [1547], [1555], [1563], [1575], [1579], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1645], [1656], [1667], [1671], [1675], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1825], [1829], [1833], [1844], [1848], [1852], [1856], [1860], [1864], [1868], [1872], [1876], [1880], [1884], [1888], [1899], [1903], [1907], [1911], [1915], [1919], [1923], [1927], [1931], [1935], [1939], [1950], [1954], [1958], [1969], [1973], [1977], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2032], [2036], [2040], [2044], [2048], [2052], [2056], [2060], [2064], [2068], [2072], [2076], [2080], [2084], [2088], [2099], [2103], [2107], [2111], [2115], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2173], [2177], [2181], [2192], [2196], [2200], [2204], [2208], [2219], [2223], [2227], [2231], [2235], [2239], [2250], [2261], [2265], [2269], [2273], [2277], [2288], [2292], [2303], [2307], [2311], [2315], [2319], [2323], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2452], [2456], [2467], [2471], [2482], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2560], [2564], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2615], [2619], [2623], [2627], [2631], [2635], [2639], [2643], [2647], [2649], [2650], [5775], [5779], [5785], [5789], [5791], [5796], [5800], [5804], [5808], [5812], [5816], [5820], [5824], [5828], [5832], [5836], [5840], [5844], [5848], [5852], [5856], [5860], [5864], [5868], [5879], [5890], [5894], [5898], [5909], [5913], [5917], [5921], [5925], [5929], [5933], [5937], [5941], [5945], [5949], [5953], [5957], [5961], [5965], [5969], [5973], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6031], [6035], [6039], [6043], [6054], [6058], [6062], [6066], [6070], [6074], [6078], [6082], [6086], [6090], [6094], [6098], [6102], [6106], [6110], [6114], [6118], [6122], [6126], [6130], [6134], [6138], [6142], [6153], [6157], [6161], [6165], [6169], [6173], [6177], [6181], [6185], [6189], [6193], [6197], [6201], [6205], [6209], [6220], [6224], [6228], [6232], [6236], [6247], [6251], [6255], [6259], [6263], [6267], [6271], [6275], [6279], [6290], [6294], [6298], [6309], [6313], [6317], [6321], [6325], [6329], [6333], [6337], [6341], [6345], [6349], [6353], [6364], [6368], [6372], [6376], [6380], [6384], [6388], [6392], [6403], [6407], [6411], [6415], [6419], [6423], [6427], [6431], [6435], [6439], [6443], [6447], [6458], [6462], [6473], [6477], [6481], [6485], [6496], [6500], [6504], [6508], [6512], [6516], [6520], [6524], [6535], [6539], [6543], [6554], [6558], [6562], [6566], [6570], [6574], [6578], [6582], [6586], [6590], [6594], [6598], [6602], [6606], [6610], [6614], [6618], [6622], [6626], [6630], [6634], [6638], [6642], [6646], [6650], [6654], [6658], [6662], [6666], [6670], [6674], [6678], [6682], [6686], [6690], [6694], [6705], [6709], [6720], [6724], [6728], [6732], [6736], [6740], [6743], [6826], [6829], [6830], [6833], [6834], [6835], [6839], [6840]
[2018-07-23 23:26:46,084 INFO  L148    AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain]
[2018-07-23 23:26:46,084 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)
Received shutdown request...