/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 04:07:43,227 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 04:07:43,231 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 04:07:43,280 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 04:07:43,280 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 04:07:43,281 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 04:07:43,283 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 04:07:43,285 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 04:07:43,287 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 04:07:43,288 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 04:07:43,289 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 04:07:43,290 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 04:07:43,291 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 04:07:43,292 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 04:07:43,293 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 04:07:43,295 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 04:07:43,296 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 04:07:43,297 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 04:07:43,299 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 04:07:43,300 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 04:07:43,302 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 04:07:43,303 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 04:07:43,304 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 04:07:43,305 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 04:07:43,308 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 04:07:43,308 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 04:07:43,308 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 04:07:43,309 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 04:07:43,310 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 04:07:43,311 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 04:07:43,311 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 04:07:43,312 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 04:07:43,313 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 04:07:43,314 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 04:07:43,315 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 04:07:43,316 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 04:07:43,316 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 04:07:43,317 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 04:07:43,317 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 04:07:43,318 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 04:07:43,319 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 04:07:43,320 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 04:07:43,345 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 04:07:43,345 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 04:07:43,347 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 04:07:43,347 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 04:07:43,347 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 04:07:43,347 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 04:07:43,348 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 04:07:43,348 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 04:07:43,348 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 04:07:43,348 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 04:07:43,348 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 04:07:43,349 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 04:07:43,349 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 04:07:43,349 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 04:07:43,349 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 04:07:43,349 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 04:07:43,350 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 04:07:43,350 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 04:07:43,350 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 04:07:43,350 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 04:07:43,350 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 04:07:43,351 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:07:43,351 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 04:07:43,351 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 04:07:43,351 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 04:07:43,351 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 04:07:43,352 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 04:07:43,352 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 04:07:43,352 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 04:07:43,352 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
[2020-09-25 04:07:43,815 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 04:07:43,836 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 04:07:43,842 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 04:07:43,845 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 04:07:43,846 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 04:07:43,847 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c
[2020-09-25 04:07:43,936 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f8ef7edb/3860f5b98fa24795857d4c15df65cc6e/FLAGecfbbeae3
[2020-09-25 04:07:44,610 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 04:07:44,611 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c
[2020-09-25 04:07:44,627 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f8ef7edb/3860f5b98fa24795857d4c15df65cc6e/FLAGecfbbeae3
[2020-09-25 04:07:44,814 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f8ef7edb/3860f5b98fa24795857d4c15df65cc6e
[2020-09-25 04:07:44,826 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 04:07:44,833 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 04:07:44,834 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 04:07:44,834 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 04:07:44,839 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 04:07:44,840 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:44" (1/1) ...
[2020-09-25 04:07:44,844 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:44, skipping insertion in model container
[2020-09-25 04:07:44,845 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:44" (1/1) ...
[2020-09-25 04:07:44,854 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 04:07:44,910 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 04:07:45,267 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:07:45,282 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 04:07:45,488 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:07:45,528 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 04:07:45,529 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45 WrapperNode
[2020-09-25 04:07:45,529 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 04:07:45,530 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 04:07:45,531 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 04:07:45,531 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 04:07:45,545 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,546 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,566 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,567 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,599 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,610 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,617 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
[2020-09-25 04:07:45,626 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 04:07:45,627 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 04:07:45,627 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 04:07:45,627 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 04:07:45,628 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:07:45,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 04:07:45,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 04:07:45,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:07:45,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 04:07:45,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 04:07:45,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 04:07:45,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 04:07:45,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 04:07:45,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 04:07:45,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 04:07:45,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 04:07:45,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 04:07:45,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 04:07:45,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 04:07:45,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 04:07:45,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 04:07:45,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 04:07:45,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 04:07:45,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 04:07:45,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 04:07:45,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 04:07:45,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 04:07:45,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 04:07:45,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 04:07:45,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:07:45,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 04:07:45,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 04:07:45,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 04:07:45,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 04:07:45,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 04:07:45,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 04:07:45,720 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 04:07:45,721 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 04:07:45,722 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 04:07:45,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 04:07:45,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:07:45,725 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 04:07:45,726 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 04:07:45,727 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 04:07:46,878 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 04:07:46,878 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 04:07:46,895 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:46 BoogieIcfgContainer
[2020-09-25 04:07:46,895 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 04:07:46,899 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 04:07:46,899 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 04:07:46,903 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 04:07:46,904 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:07:44" (1/3) ...
[2020-09-25 04:07:46,905 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc5e0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:46, skipping insertion in model container
[2020-09-25 04:07:46,905 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:45" (2/3) ...
[2020-09-25 04:07:46,906 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc5e0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:46, skipping insertion in model container
[2020-09-25 04:07:46,906 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:46" (3/3) ...
[2020-09-25 04:07:46,909 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c
[2020-09-25 04:07:46,923 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 04:07:46,939 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 04:07:46,965 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 04:07:47,012 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 04:07:47,013 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 04:07:47,013 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 04:07:47,013 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 04:07:47,014 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 04:07:47,015 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 04:07:47,015 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 04:07:47,015 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 04:07:47,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 347 states.
[2020-09-25 04:07:47,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 04:07:47,102 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:07:47,103 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:07:47,105 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:07:47,116 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:07:47,116 INFO  L82        PathProgramCache]: Analyzing trace with hash 900449918, now seen corresponding path program 1 times
[2020-09-25 04:07:47,130 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:07:47,130 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649830025]
[2020-09-25 04:07:47,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:07:47,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:47,667 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:47,864 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:49,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:52,594 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:52,595 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 04:07:52,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 04:07:52,597 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5064
[2020-09-25 04:07:52,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:52,602 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:52,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:52,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 04:07:52,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:52,613 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 16
[2020-09-25 04:07:53,155 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:07:53,158 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:07:53,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,181 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,317 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,317 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:07:53,317 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,317 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 145
[2020-09-25 04:07:53,318 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,318 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:07:53,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:07:53,395 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:07:53,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,398 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,400 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,400 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:07:53,401 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,401 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:07:53,401 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,401 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:07:53,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,402 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:07:53,404 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:07:53,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,406 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,410 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:07:53,410 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:07:53,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,411 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:07:53,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,412 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:07:53,414 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:07:53,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,422 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,422 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:07:53,423 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,423 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 04:07:53,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,424 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:07:53,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,426 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:07:53,428 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:07:53,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,429 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,432 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,432 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:07:53,433 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,433 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:07:53,433 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,434 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:07:53,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,435 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:07:53,437 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 04:07:53,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,440 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:07:53,444 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:07:53,445 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,445 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:07:53,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:07:53,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:07:53,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,455 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:07:53,455 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:07:53,456 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,457 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:07:53,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,458 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:07:53,460 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 04:07:53,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:53,463 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:53,466 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:07:53,466 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:07:53,466 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:07:53,466 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:07:53,467 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:07:53,467 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:07:53,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:07:53,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:07:53,468 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:07:53,468 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:07:53,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:07:53,522 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649830025]
[2020-09-25 04:07:53,525 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:07:53,526 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 04:07:53,527 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627110471]
[2020-09-25 04:07:53,534 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 04:07:53,535 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:07:53,562 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 04:07:53,563 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:07:53,567 INFO  L87              Difference]: Start difference. First operand 347 states. Second operand 3 states.
[2020-09-25 04:07:55,294 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:07:55,295 INFO  L93              Difference]: Finished difference Result 562 states and 667 transitions.
[2020-09-25 04:07:55,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-25 04:07:55,298 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-25 04:07:55,299 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:07:55,321 INFO  L225             Difference]: With dead ends: 562
[2020-09-25 04:07:55,321 INFO  L226             Difference]: Without dead ends: 340
[2020-09-25 04:07:55,328 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:07:55,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 340 states.
[2020-09-25 04:07:55,493 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 296.
[2020-09-25 04:07:55,497 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 296 states.
[2020-09-25 04:07:55,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 324 transitions.
[2020-09-25 04:07:55,503 INFO  L78                 Accepts]: Start accepts. Automaton has 296 states and 324 transitions. Word has length 153
[2020-09-25 04:07:55,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:07:55,505 INFO  L479      AbstractCegarLoop]: Abstraction has 296 states and 324 transitions.
[2020-09-25 04:07:55,506 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 04:07:55,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states and 324 transitions.
[2020-09-25 04:07:55,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-25 04:07:55,518 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:07:55,519 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:07:55,519 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 04:07:55,519 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:07:55,520 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:07:55,520 INFO  L82        PathProgramCache]: Analyzing trace with hash 773490884, now seen corresponding path program 1 times
[2020-09-25 04:07:55,520 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:07:55,521 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36675106]
[2020-09-25 04:07:55,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:07:55,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:07:55,656 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:55,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:07:57,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:00,622 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:00,622 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 04:08:00,623 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 04:08:00,623 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5026
[2020-09-25 04:08:00,623 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:00,623 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:00,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:00,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 04:08:00,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 04:08:00,624 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:00,922 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:08:00,923 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:08:00,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:00,953 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,052 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,052 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:08:01,053 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,053 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 109
[2020-09-25 04:08:01,053 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,053 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:01,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,054 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,090 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:08:01,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,093 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,095 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:01,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,096 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:01,096 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,096 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:01,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,097 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,098 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:08:01,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,101 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,102 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:01,102 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,102 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:01,102 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,103 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:01,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,105 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:08:01,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,111 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,111 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:01,111 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,111 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:08:01,112 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,112 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:01,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,113 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,114 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:08:01,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,117 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,117 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:01,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,117 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:01,118 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,118 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:01,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,119 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,120 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-25 04:08:01,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,122 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,124 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,125 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:01,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:01,125 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,126 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:01,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,127 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,129 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 04:08:01,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,133 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:01,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:01,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,169 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:01,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,170 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 04:08:01,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-25 04:08:01,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:01,177 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:01,179 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:01,180 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:01,180 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:01,180 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:01,180 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:01,181 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:01,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:01,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:01,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:01,181 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:01,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:08:01,210 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36675106]
[2020-09-25 04:08:01,211 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:08:01,211 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 04:08:01,211 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465047078]
[2020-09-25 04:08:01,216 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 04:08:01,216 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:08:01,216 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 04:08:01,217 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 04:08:01,217 INFO  L87              Difference]: Start difference. First operand 296 states and 324 transitions. Second operand 4 states.
[2020-09-25 04:08:01,841 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:08:03,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:08:03,160 INFO  L93              Difference]: Finished difference Result 475 states and 538 transitions.
[2020-09-25 04:08:03,161 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 04:08:03,161 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-25 04:08:03,162 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:08:03,165 INFO  L225             Difference]: With dead ends: 475
[2020-09-25 04:08:03,166 INFO  L226             Difference]: Without dead ends: 323
[2020-09-25 04:08:03,167 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:08:03,169 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-25 04:08:03,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 286.
[2020-09-25 04:08:03,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 286 states.
[2020-09-25 04:08:03,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions.
[2020-09-25 04:08:03,215 INFO  L78                 Accepts]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 154
[2020-09-25 04:08:03,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:08:03,215 INFO  L479      AbstractCegarLoop]: Abstraction has 286 states and 311 transitions.
[2020-09-25 04:08:03,215 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 04:08:03,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 286 states and 311 transitions.
[2020-09-25 04:08:03,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 04:08:03,218 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:08:03,218 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:08:03,218 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 04:08:03,219 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:08:03,219 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:08:03,219 INFO  L82        PathProgramCache]: Analyzing trace with hash 1369101505, now seen corresponding path program 1 times
[2020-09-25 04:08:03,219 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:08:03,220 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525153058]
[2020-09-25 04:08:03,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:08:03,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:03,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:03,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,214 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,215 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 04:08:06,215 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:08:06,215 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2946
[2020-09-25 04:08:06,215 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,215 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 04:08:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 04:08:06,216 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:06,490 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:08:06,491 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:08:06,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,507 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,595 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,595 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:08:06,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,596 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-09-25 04:08:06,596 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,596 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,597 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:06,642 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:08:06,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,643 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,645 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,645 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:06,645 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,645 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:06,646 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,646 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,647 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:06,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:08:06,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,651 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,651 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:06,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:06,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,652 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,652 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:06,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:08:06,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,659 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:06,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:08:06,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,660 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,662 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:08:06,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:08:06,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,666 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,666 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:06,666 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:06,667 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,667 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:06,677 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 04:08:06,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,684 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,685 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:08:06,685 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,685 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:08:06,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,685 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:06,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:06,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 04:08:06,687 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:06,689 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 04:08:06,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,699 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:06,699 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,699 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:06,702 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 04:08:06,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,704 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,707 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,707 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:06,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,708 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:08:06,708 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,708 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:06,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,709 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:06,710 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 04:08:06,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:06,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:06,715 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:06,715 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:06,715 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:06,715 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:06,716 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:06,716 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:06,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:06,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:06,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:06,717 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:06,748 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:08:06,750 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525153058]
[2020-09-25 04:08:06,750 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:08:06,750 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 04:08:06,751 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65022623]
[2020-09-25 04:08:06,752 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 04:08:06,753 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:08:06,753 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 04:08:06,756 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:08:06,756 INFO  L87              Difference]: Start difference. First operand 286 states and 311 transitions. Second operand 5 states.
[2020-09-25 04:08:07,313 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:08:08,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:08:08,599 INFO  L93              Difference]: Finished difference Result 521 states and 600 transitions.
[2020-09-25 04:08:08,603 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 04:08:08,603 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 167
[2020-09-25 04:08:08,604 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:08:08,609 INFO  L225             Difference]: With dead ends: 521
[2020-09-25 04:08:08,609 INFO  L226             Difference]: Without dead ends: 345
[2020-09-25 04:08:08,614 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 04:08:08,615 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 345 states.
[2020-09-25 04:08:08,679 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 286.
[2020-09-25 04:08:08,679 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 286 states.
[2020-09-25 04:08:08,683 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 310 transitions.
[2020-09-25 04:08:08,684 INFO  L78                 Accepts]: Start accepts. Automaton has 286 states and 310 transitions. Word has length 167
[2020-09-25 04:08:08,685 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:08:08,686 INFO  L479      AbstractCegarLoop]: Abstraction has 286 states and 310 transitions.
[2020-09-25 04:08:08,686 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 04:08:08,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 286 states and 310 transitions.
[2020-09-25 04:08:08,690 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 04:08:08,690 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:08:08,690 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:08:08,691 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 04:08:08,691 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:08:08,691 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:08:08,691 INFO  L82        PathProgramCache]: Analyzing trace with hash -1017575846, now seen corresponding path program 1 times
[2020-09-25 04:08:08,692 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:08:08,692 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407886183]
[2020-09-25 04:08:08,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:08:08,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:08,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:09,015 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:09,169 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:10,173 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:12,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:13,420 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:13,769 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:13,769 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 226
[2020-09-25 04:08:13,769 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 04:08:13,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5001
[2020-09-25 04:08:13,770 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:13,770 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:13,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:08:13,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 163
[2020-09-25 04:08:13,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 04:08:13,771 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,128 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:08:14,129 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:08:14,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,265 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,266 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:08:14,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 125
[2020-09-25 04:08:14,267 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,267 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,268 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,309 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:08:14,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,312 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,313 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:14,313 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,313 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:14,313 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,314 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,314 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,315 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:08:14,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:14,318 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:14,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,319 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:14,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:08:14,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:14,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:08:14,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,327 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:08:14,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,331 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,332 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,332 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:14,332 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,333 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:08:14,333 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,333 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,334 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 04:08:14,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,345 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,347 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:08:14,348 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,348 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:14,348 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,349 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,349 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,359 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:08:14,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,364 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,375 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,386 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 29
[2020-09-25 04:08:14,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:08:14,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 04:08:14,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,388 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:08:14,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-25 04:08:14,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 04:08:14,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:14,391 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:14,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,405 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 04:08:14,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,406 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 04:08:14,406 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,406 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:08:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 4
[2020-09-25 04:08:14,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 04:08:14,407 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,426 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:14,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,430 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,444 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,447 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 04:08:14,447 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,447 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 04:08:14,447 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,448 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:08:14,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 04:08:14,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 04:08:14,448 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:14,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,467 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,468 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:14,468 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,468 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:14,468 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,477 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:14,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:14,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:08:14,478 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 04:08:14,481 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153
[2020-09-25 04:08:14,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,487 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,492 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,492 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:14,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,492 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:08:14,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,493 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:14,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,495 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163
[2020-09-25 04:08:14,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,497 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,498 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,499 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:14,499 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,499 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:14,499 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,499 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:14,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,500 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:14,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2020-09-25 04:08:14,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:14,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:14,506 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:14,506 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:14,506 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:14,507 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:14,507 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:14,507 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:14,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:14,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:14,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:14,508 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:14,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:08:14,547 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407886183]
[2020-09-25 04:08:14,547 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:08:14,547 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 04:08:14,547 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028816627]
[2020-09-25 04:08:14,548 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 04:08:14,548 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:08:14,549 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 04:08:14,549 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-09-25 04:08:14,549 INFO  L87              Difference]: Start difference. First operand 286 states and 310 transitions. Second operand 7 states.
[2020-09-25 04:08:15,225 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:08:17,001 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:08:18,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:08:18,095 INFO  L93              Difference]: Finished difference Result 729 states and 861 transitions.
[2020-09-25 04:08:18,096 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-25 04:08:18,096 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 185
[2020-09-25 04:08:18,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:08:18,102 INFO  L225             Difference]: With dead ends: 729
[2020-09-25 04:08:18,103 INFO  L226             Difference]: Without dead ends: 553
[2020-09-25 04:08:18,104 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210
[2020-09-25 04:08:18,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 553 states.
[2020-09-25 04:08:18,163 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 426.
[2020-09-25 04:08:18,163 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 426 states.
[2020-09-25 04:08:18,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 459 transitions.
[2020-09-25 04:08:18,166 INFO  L78                 Accepts]: Start accepts. Automaton has 426 states and 459 transitions. Word has length 185
[2020-09-25 04:08:18,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:08:18,167 INFO  L479      AbstractCegarLoop]: Abstraction has 426 states and 459 transitions.
[2020-09-25 04:08:18,167 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 04:08:18,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 426 states and 459 transitions.
[2020-09-25 04:08:18,170 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2020-09-25 04:08:18,170 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:08:18,170 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:08:18,171 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 04:08:18,171 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:08:18,171 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:08:18,171 INFO  L82        PathProgramCache]: Analyzing trace with hash 1341999149, now seen corresponding path program 1 times
[2020-09-25 04:08:18,171 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:08:18,172 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144278873]
[2020-09-25 04:08:18,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:08:18,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:18,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:18,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,161 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 254
[2020-09-25 04:08:21,162 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:08:21,162 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2934
[2020-09-25 04:08:21,162 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,162 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:08:21,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 179
[2020-09-25 04:08:21,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 04:08:21,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,492 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:08:21,493 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:08:21,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,530 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,657 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:08:21,657 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 151
[2020-09-25 04:08:21,658 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,658 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,659 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,700 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:08:21,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,704 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,706 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:21,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,707 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:08:21,707 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,707 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,709 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,710 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:08:21,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,713 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:21,714 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,714 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:21,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,715 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,716 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,717 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:08:21,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,719 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,725 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:21,726 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,726 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 04:08:21,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,727 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,730 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:08:21,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,734 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,734 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:21,734 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,735 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:21,735 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,735 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,737 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,753 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 04:08:21,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,758 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:08:21,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:21,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,760 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:21,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:21,761 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,779 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:08:21,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,818 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-09-25 04:08:21,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 30
[2020-09-25 04:08:21,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,820 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 24
[2020-09-25 04:08:21,821 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,843 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:21,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,851 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,873 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 04:08:21,874 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 25
[2020-09-25 04:08:21,875 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,875 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 04:08:21,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,881 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:21,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,890 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,918 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,919 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 04:08:21,919 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,919 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 30
[2020-09-25 04:08:21,920 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,920 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 04:08:21,922 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:08:21,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,939 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,954 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,954 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 04:08:21,954 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,955 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-25 04:08:21,955 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,956 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 04:08:21,957 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:21,964 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 04:08:21,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,966 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,974 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,975 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 04:08:21,975 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,975 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 04:08:21,976 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,976 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 04:08:21,978 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:08:21,986 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 04:08:21,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:21,988 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:21,991 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:21,992 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:08:21,992 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:21,993 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:08:21,993 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:21,993 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:21,994 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:21,994 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:21,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:08:21,995 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:08:22,004 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177
[2020-09-25 04:08:22,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:22,007 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:22,012 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:22,013 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:22,013 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:22,013 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 04:08:22,014 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:22,014 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:22,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:08:22,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:22,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:08:22,015 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:22,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187
[2020-09-25 04:08:22,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:22,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:22,029 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:22,030 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:22,030 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:22,030 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 04:08:22,031 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:22,031 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:22,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 04:08:22,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:08:22,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:08:22,032 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:22,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197
[2020-09-25 04:08:22,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:22,075 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:22,076 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:22,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:08:22,077 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:22,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:08:22,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:22,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:22,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:08:22,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:08:22,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:08:22,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:08:22,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:08:22,196 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144278873]
[2020-09-25 04:08:22,197 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:08:22,197 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 04:08:22,197 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047016654]
[2020-09-25 04:08:22,198 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 04:08:22,198 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:08:22,198 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 04:08:22,199 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-25 04:08:22,199 INFO  L87              Difference]: Start difference. First operand 426 states and 459 transitions. Second operand 11 states.
[2020-09-25 04:08:22,933 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:08:25,016 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:08:25,417 WARN  L193               SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:08:25,773 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:08:26,098 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:08:26,411 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 04:08:26,749 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:08:27,019 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:08:27,463 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:08:29,646 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:08:29,647 INFO  L93              Difference]: Finished difference Result 1236 states and 1510 transitions.
[2020-09-25 04:08:29,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-09-25 04:08:29,647 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 209
[2020-09-25 04:08:29,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:08:29,655 INFO  L225             Difference]: With dead ends: 1236
[2020-09-25 04:08:29,655 INFO  L226             Difference]: Without dead ends: 920
[2020-09-25 04:08:29,657 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552
[2020-09-25 04:08:29,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 920 states.
[2020-09-25 04:08:29,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 710.
[2020-09-25 04:08:29,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 710 states.
[2020-09-25 04:08:29,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 788 transitions.
[2020-09-25 04:08:29,759 INFO  L78                 Accepts]: Start accepts. Automaton has 710 states and 788 transitions. Word has length 209
[2020-09-25 04:08:29,760 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:08:29,760 INFO  L479      AbstractCegarLoop]: Abstraction has 710 states and 788 transitions.
[2020-09-25 04:08:29,760 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 04:08:29,761 INFO  L276                IsEmpty]: Start isEmpty. Operand 710 states and 788 transitions.
[2020-09-25 04:08:29,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2020-09-25 04:08:29,765 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:08:29,765 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:08:29,765 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 04:08:29,765 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:08:29,766 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:08:29,766 INFO  L82        PathProgramCache]: Analyzing trace with hash 1540758972, now seen corresponding path program 1 times
[2020-09-25 04:08:29,766 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:08:29,767 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203071013]
[2020-09-25 04:08:29,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:08:29,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:29,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:08:30,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:08:30,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 261
[2020-09-25 04:08:30,549 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 728
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 187
[2020-09-25 04:08:30,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 04:08:30,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:08:30,829 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:08:30,830 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:08:30,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:08:30,848 FATAL L256   erpolLogProxyWrapper]: Now shrinking...