/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=0.4 --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_spec5_product55.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 05:23:16,169 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 05:23:16,173 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 05:23:16,201 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 05:23:16,202 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 05:23:16,203 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 05:23:16,205 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 05:23:16,207 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 05:23:16,209 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 05:23:16,210 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-25 05:23:16,213 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 05:23:16,213 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 05:23:16,214 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 05:23:16,216 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 05:23:16,217 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 05:23:16,218 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 05:23:16,219 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 05:23:16,221 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 05:23:16,223 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 05:23:16,225 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 05:23:16,226 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 05:23:16,227 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 05:23:16,228 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 05:23:16,231 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 05:23:16,232 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 05:23:16,232 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 05:23:16,236 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 05:23:16,237 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 05:23:16,238 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 05:23:16,238 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 05:23:16,244 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 05:23:16,245 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 05:23:16,247 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 05:23:16,247 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-25 05:23:16,248 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 05:23:16,253 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 05:23:16,261 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 05:23:16,262 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 05:23:16,311 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 05:23:16,311 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 05:23:16,313 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 05:23:16,314 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 05:23:16,314 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 05:23:16,314 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 05:23:16,314 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 05:23:16,315 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 05:23:16,315 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 05:23:16,315 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 05:23:16,316 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 05:23:16,316 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 05:23:16,316 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 05:23:16,317 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 05:23:16,317 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 05:23:16,317 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 05:23:16,317 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 05:23:16,318 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 05:23:16,318 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 05:23:16,318 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 05:23:16,319 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 05:23:16,319 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 05:23:16,319 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 05:23:16,319 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 05:23:16,319 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 05:23:16,320 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 05:23:16,320 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 05:23:16,320 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 05:23:16,321 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 05:23:16,321 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true;
[2020-09-25 05:23:16,769 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 05:23:16,791 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 05:23:16,795 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 05:23:16,797 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 05:23:16,797 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 05:23:16,798 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c
[2020-09-25 05:23:16,892 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4638f08c6/265510055350448688c44e683761a70d/FLAGfb687279c
[2020-09-25 05:23:17,526 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 05:23:17,527 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c
[2020-09-25 05:23:17,545 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4638f08c6/265510055350448688c44e683761a70d/FLAGfb687279c
[2020-09-25 05:23:17,784 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4638f08c6/265510055350448688c44e683761a70d
[2020-09-25 05:23:17,798 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 05:23:17,803 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 05:23:17,805 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 05:23:17,805 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 05:23:17,809 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 05:23:17,811 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:23:17" (1/1) ...
[2020-09-25 05:23:17,815 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:17, skipping insertion in model container
[2020-09-25 05:23:17,816 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:23:17" (1/1) ...
[2020-09-25 05:23:17,825 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 05:23:17,905 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 05:23:18,287 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:23:18,311 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 05:23:18,560 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:23:18,609 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 05:23:18,611 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18 WrapperNode
[2020-09-25 05:23:18,611 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 05:23:18,612 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 05:23:18,612 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 05:23:18,612 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 05:23:18,628 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,629 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,651 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,652 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,686 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,703 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,708 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (1/1) ...
[2020-09-25 05:23:18,716 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 05:23:18,717 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 05:23:18,717 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 05:23:18,717 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 05:23:18,718 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (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 05:23:18,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 05:23:18,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 05:23:18,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 05:23:18,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 05:23:18,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 05:23:18,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 05:23:18,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 05:23:18,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 05:23:18,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 05:23:18,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 05:23:18,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 05:23:18,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 05:23:18,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 05:23:18,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 05:23:18,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 05:23:18,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 05:23:18,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 05:23:18,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 05:23:18,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 05:23:18,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 05:23:18,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 05:23:18,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-25 05:23:18,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-25 05:23:18,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-25 05:23:18,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 05:23:18,799 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 05:23:18,800 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 05:23:18,801 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 05:23:18,801 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 05:23:18,801 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 05:23:18,801 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 05:23:18,801 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 05:23:18,802 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 05:23:18,803 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 05:23:18,804 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 05:23:18,805 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 05:23:18,806 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 05:23:18,807 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 05:23:18,808 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 05:23:18,809 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 05:23:20,023 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 05:23:20,023 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 05:23:20,032 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:23:20 BoogieIcfgContainer
[2020-09-25 05:23:20,032 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 05:23:20,034 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 05:23:20,034 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 05:23:20,038 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 05:23:20,039 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:23:17" (1/3) ...
[2020-09-25 05:23:20,040 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cba8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:23:20, skipping insertion in model container
[2020-09-25 05:23:20,040 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:23:18" (2/3) ...
[2020-09-25 05:23:20,041 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cba8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:23:20, skipping insertion in model container
[2020-09-25 05:23:20,041 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:23:20" (3/3) ...
[2020-09-25 05:23:20,043 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c
[2020-09-25 05:23:20,057 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 05:23:20,069 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 05:23:20,094 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 05:23:20,144 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 05:23:20,145 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 05:23:20,145 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 05:23:20,145 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 05:23:20,145 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 05:23:20,147 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 05:23:20,147 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 05:23:20,148 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 05:23:20,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 356 states.
[2020-09-25 05:23:20,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-25 05:23:20,234 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:23:20,236 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:23:20,236 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:23:20,244 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:23:20,244 INFO  L82        PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times
[2020-09-25 05:23:20,256 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:23:20,256 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643202621]
[2020-09-25 05:23:20,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:23:20,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:20,797 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:20,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:22,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:22,584 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:25,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:25,663 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:25,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-25 05:23:25,673 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 05:23:25,673 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 05:23:25,677 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:25,678 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:25,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:25,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 05:23:25,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:25,678 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 05:23:26,093 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:23:26,096 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:26,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,122 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:23:26,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-25 05:23:26,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,233 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,234 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,331 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:23:26,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,338 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,352 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:26,352 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,352 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 05:23:26,353 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,353 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,358 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:23:26,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,361 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,364 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,364 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:26,365 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:26,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,366 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,374 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:23:26,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,376 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:26,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 05:23:26,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,388 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:23:26,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,391 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,393 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,393 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:26,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,394 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:26,394 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,395 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:23:26,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,414 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,415 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,416 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:26,416 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,416 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:26,416 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,417 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,418 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 05:23:26,422 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 05:23:26,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,432 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,435 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,436 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:23:26,436 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,436 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:26,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,437 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 05:23:26,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,439 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,443 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:26,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,449 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,450 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:26,450 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,450 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:26,451 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,451 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,453 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:26,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,460 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 05:23:26,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 05:23:26,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,467 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,469 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,469 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:26,470 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,470 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:26,470 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,470 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:26,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,471 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,474 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 05:23:26,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:26,477 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:26,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:26,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:26,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:26,479 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:26,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:26,480 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:26,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:26,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:26,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:26,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:26,568 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 05:23:26,569 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643202621]
[2020-09-25 05:23:26,571 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:23:26,571 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 05:23:26,572 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266728309]
[2020-09-25 05:23:26,581 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 05:23:26,581 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:23:26,599 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 05:23:26,600 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 05:23:26,603 INFO  L87              Difference]: Start difference. First operand 356 states. Second operand 4 states.
[2020-09-25 05:23:28,230 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:23:28,231 INFO  L93              Difference]: Finished difference Result 574 states and 675 transitions.
[2020-09-25 05:23:28,232 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 05:23:28,233 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 160
[2020-09-25 05:23:28,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:23:28,256 INFO  L225             Difference]: With dead ends: 574
[2020-09-25 05:23:28,256 INFO  L226             Difference]: Without dead ends: 354
[2020-09-25 05:23:28,266 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 05:23:28,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2020-09-25 05:23:28,400 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 305.
[2020-09-25 05:23:28,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 305 states.
[2020-09-25 05:23:28,404 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions.
[2020-09-25 05:23:28,406 INFO  L78                 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 160
[2020-09-25 05:23:28,407 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:23:28,408 INFO  L479      AbstractCegarLoop]: Abstraction has 305 states and 335 transitions.
[2020-09-25 05:23:28,408 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 05:23:28,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions.
[2020-09-25 05:23:28,412 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2020-09-25 05:23:28,412 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:23:28,413 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:23:28,413 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 05:23:28,413 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:23:28,414 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:23:28,414 INFO  L82        PathProgramCache]: Analyzing trace with hash -1789816380, now seen corresponding path program 1 times
[2020-09-25 05:23:28,414 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:23:28,414 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313925732]
[2020-09-25 05:23:28,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:23:28,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:28,547 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:28,662 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:30,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:30,749 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:31,896 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:33,518 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:33,518 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 198
[2020-09-25 05:23:33,518 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 05:23:33,518 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-09-25 05:23:33,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:33,519 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:33,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:33,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 05:23:33,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 05:23:33,520 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:33,851 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:23:33,853 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:33,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:33,875 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:33,971 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:33,971 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:23:33,971 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:33,972 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 05:23:33,972 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:33,972 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:33,972 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:33,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:33,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:33,973 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,008 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:23:34,009 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,010 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,012 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,012 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:34,012 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,012 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,013 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,013 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,014 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:23:34,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,017 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,018 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,019 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:34,019 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,019 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,019 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,020 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,020 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,021 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:23:34,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,023 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,027 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:34,028 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:34,028 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,029 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,032 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:23:34,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,035 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,035 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:34,035 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,035 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,036 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,036 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,037 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,047 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:23:34,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,049 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,051 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:34,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,052 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,053 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,054 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 05:23:34,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,059 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,060 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:23:34,060 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,060 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:34,060 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,061 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,061 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,061 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 05:23:34,061 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,061 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,063 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:34,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,065 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,067 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,067 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:34,068 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,068 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,068 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,068 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:34,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,069 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,071 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-09-25 05:23:34,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,073 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,075 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,075 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:34,075 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,076 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,076 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,076 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:34,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,077 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,078 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-25 05:23:34,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:34,081 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:34,083 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:34,083 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:34,083 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:34,083 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:34,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:34,084 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:34,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:34,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:34,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:34,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:34,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 05:23:34,116 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313925732]
[2020-09-25 05:23:34,116 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:23:34,116 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 05:23:34,116 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872419293]
[2020-09-25 05:23:34,120 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 05:23:34,120 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:23:34,120 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 05:23:34,120 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 05:23:34,121 INFO  L87              Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 5 states.
[2020-09-25 05:23:34,796 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 05:23:36,144 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:23:36,144 INFO  L93              Difference]: Finished difference Result 497 states and 563 transitions.
[2020-09-25 05:23:36,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 05:23:36,145 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 161
[2020-09-25 05:23:36,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:23:36,151 INFO  L225             Difference]: With dead ends: 497
[2020-09-25 05:23:36,151 INFO  L226             Difference]: Without dead ends: 343
[2020-09-25 05:23:36,153 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 05:23:36,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 343 states.
[2020-09-25 05:23:36,210 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 295.
[2020-09-25 05:23:36,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 295 states.
[2020-09-25 05:23:36,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions.
[2020-09-25 05:23:36,213 INFO  L78                 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 161
[2020-09-25 05:23:36,214 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:23:36,214 INFO  L479      AbstractCegarLoop]: Abstraction has 295 states and 322 transitions.
[2020-09-25 05:23:36,214 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 05:23:36,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions.
[2020-09-25 05:23:36,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2020-09-25 05:23:36,216 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:23:36,217 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:23:36,217 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 05:23:36,217 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:23:36,217 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:23:36,218 INFO  L82        PathProgramCache]: Analyzing trace with hash 350266212, now seen corresponding path program 1 times
[2020-09-25 05:23:36,218 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:23:36,218 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304584061]
[2020-09-25 05:23:36,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:23:36,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:36,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:36,968 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:37,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:39,482 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:41,290 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:41,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 205
[2020-09-25 05:23:41,291 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 05:23:41,291 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5018
[2020-09-25 05:23:41,291 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:41,292 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:41,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 05:23:41,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 05:23:41,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 05:23:41,292 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:41,626 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:23:41,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:41,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:41,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:41,897 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:41,897 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:23:41,897 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:41,898 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 238
[2020-09-25 05:23:41,898 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:41,898 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:41,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:41,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:41,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 05:23:41,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:41,948 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:23:41,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:41,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:41,955 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:41,955 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:41,955 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:41,956 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 05:23:41,956 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:41,956 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:41,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:41,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:41,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 05:23:41,957 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:41,959 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:23:41,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:41,961 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:41,963 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:41,964 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:41,964 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:42,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,007 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:42,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 05:23:42,011 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 05:23:42,016 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:23:42,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,027 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,027 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:42,027 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 05:23:42,028 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,028 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,028 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:42,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 05:23:42,029 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:42,031 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:23:42,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,036 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,036 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:42,036 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,036 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:42,037 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,037 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:42,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 05:23:42,038 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:23:42,045 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:23:42,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:42,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:42,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,051 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:42,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 05:23:42,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:42,054 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 05:23:42,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,061 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,062 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:23:42,062 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,062 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 05:23:42,062 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,063 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:42,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-25 05:23:42,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:42,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:42,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,068 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,069 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,069 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:42,070 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,070 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:42,070 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,070 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:42,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:42,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:42,071 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:42,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 05:23:42,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,075 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,077 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:42,077 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,078 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:42,078 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:42,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:42,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:42,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:23:42,080 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157
[2020-09-25 05:23:42,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:42,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:42,084 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:42,084 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:42,084 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:42,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:42,085 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:42,085 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:42,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:42,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:42,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:42,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:42,121 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 05:23:42,123 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304584061]
[2020-09-25 05:23:42,123 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:23:42,123 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 05:23:42,124 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524688217]
[2020-09-25 05:23:42,125 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 05:23:42,126 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:23:42,126 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 05:23:42,129 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 05:23:42,129 INFO  L87              Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 5 states.
[2020-09-25 05:23:42,834 WARN  L193               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 05:23:44,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:23:44,979 INFO  L93              Difference]: Finished difference Result 713 states and 818 transitions.
[2020-09-25 05:23:44,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 05:23:44,980 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 170
[2020-09-25 05:23:44,981 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:23:44,986 INFO  L225             Difference]: With dead ends: 713
[2020-09-25 05:23:44,986 INFO  L226             Difference]: Without dead ends: 533
[2020-09-25 05:23:44,987 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 05:23:44,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 533 states.
[2020-09-25 05:23:45,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 469.
[2020-09-25 05:23:45,060 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 469 states.
[2020-09-25 05:23:45,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 524 transitions.
[2020-09-25 05:23:45,063 INFO  L78                 Accepts]: Start accepts. Automaton has 469 states and 524 transitions. Word has length 170
[2020-09-25 05:23:45,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:23:45,064 INFO  L479      AbstractCegarLoop]: Abstraction has 469 states and 524 transitions.
[2020-09-25 05:23:45,064 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 05:23:45,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 469 states and 524 transitions.
[2020-09-25 05:23:45,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 180
[2020-09-25 05:23:45,068 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:23:45,068 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:23:45,068 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 05:23:45,068 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:23:45,068 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:23:45,069 INFO  L82        PathProgramCache]: Analyzing trace with hash 163203770, now seen corresponding path program 1 times
[2020-09-25 05:23:45,069 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:23:45,069 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27902473]
[2020-09-25 05:23:45,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:23:45,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:45,169 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:45,406 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:45,907 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:48,430 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,157 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,157 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 216
[2020-09-25 05:23:50,157 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 05:23:50,158 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-09-25 05:23:50,158 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,158 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 05:23:50,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 157
[2020-09-25 05:23:50,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 54
[2020-09-25 05:23:50,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,522 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:23:50,523 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:50,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,666 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,666 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:23:50,667 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 122
[2020-09-25 05:23:50,668 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,668 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,717 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:23:50,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,721 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,722 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:50,722 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:50,723 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,723 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,724 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:23:50,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,730 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:50,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,731 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:50,731 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,732 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,733 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,733 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,734 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:23:50,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,740 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,741 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:50,741 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,742 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:50,742 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,742 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,744 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,744 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,746 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:23:50,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,748 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:50,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:50,751 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,751 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,753 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,768 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:23:50,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,770 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,772 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,772 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:50,773 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,773 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:50,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,774 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,775 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,794 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 05:23:50,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,801 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,801 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 05:23:50,801 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,802 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 05:23:50,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,802 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:50,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 05:23:50,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 05:23:50,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:23:50,823 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 05:23:50,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,824 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:50,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-25 05:23:50,825 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,828 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:50,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,832 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,833 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:50,833 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,833 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:50,834 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,834 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:50,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:50,836 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,838 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 05:23:50,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,841 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,845 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,845 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:50,845 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,846 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:50,846 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,846 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:23:50,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 05:23:50,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,854 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166
[2020-09-25 05:23:50,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:50,858 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:50,869 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:50,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:50,870 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:50,870 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 05:23:50,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:50,871 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:50,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:23:50,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:50,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 05:23:50,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:50,977 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-25 05:23:50,980 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27902473]
[2020-09-25 05:23:50,981 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:23:50,981 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 05:23:50,982 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979445328]
[2020-09-25 05:23:50,983 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 05:23:50,983 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:23:50,984 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 05:23:50,984 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 05:23:50,985 INFO  L87              Difference]: Start difference. First operand 469 states and 524 transitions. Second operand 10 states.
[2020-09-25 05:23:51,636 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 05:23:52,439 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 05:23:52,763 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 05:23:54,059 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 05:23:54,365 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 05:23:54,738 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 05:23:55,397 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 05:23:55,735 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2020-09-25 05:23:56,056 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-25 05:23:57,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:23:57,071 INFO  L93              Difference]: Finished difference Result 1102 states and 1317 transitions.
[2020-09-25 05:23:57,071 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-09-25 05:23:57,072 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 179
[2020-09-25 05:23:57,073 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:23:57,079 INFO  L225             Difference]: With dead ends: 1102
[2020-09-25 05:23:57,079 INFO  L226             Difference]: Without dead ends: 748
[2020-09-25 05:23:57,081 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2020-09-25 05:23:57,083 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 748 states.
[2020-09-25 05:23:57,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 665.
[2020-09-25 05:23:57,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 665 states.
[2020-09-25 05:23:57,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 752 transitions.
[2020-09-25 05:23:57,174 INFO  L78                 Accepts]: Start accepts. Automaton has 665 states and 752 transitions. Word has length 179
[2020-09-25 05:23:57,174 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:23:57,174 INFO  L479      AbstractCegarLoop]: Abstraction has 665 states and 752 transitions.
[2020-09-25 05:23:57,175 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 05:23:57,175 INFO  L276                IsEmpty]: Start isEmpty. Operand 665 states and 752 transitions.
[2020-09-25 05:23:57,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2020-09-25 05:23:57,178 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:23:57,179 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:23:57,179 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 05:23:57,179 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:23:57,179 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:23:57,179 INFO  L82        PathProgramCache]: Analyzing trace with hash 1477920914, now seen corresponding path program 1 times
[2020-09-25 05:23:57,180 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:23:57,180 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490417048]
[2020-09-25 05:23:57,180 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:23:57,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:57,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,078 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,078 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 260
[2020-09-25 05:23:58,078 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,079 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 845
[2020-09-25 05:23:58,079 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,079 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 05:23:58,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 205
[2020-09-25 05:23:58,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:23:58,080 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,375 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:23:58,377 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:58,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,496 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:23:58,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 108
[2020-09-25 05:23:58,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,498 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,499 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,541 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:23:58,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,543 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,544 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,545 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:58,545 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,545 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:58,546 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,546 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,546 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,549 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:23:58,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,550 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,552 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,552 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:58,553 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,553 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:58,553 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,554 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,554 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,554 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,555 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,556 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:23:58,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,558 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,562 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,562 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:58,562 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,563 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:58,563 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,563 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,564 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,564 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,564 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,566 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:23:58,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,568 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,569 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:23:58,569 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,569 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 05:23:58,569 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,569 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,570 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,581 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:23:58,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,585 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,585 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:58,585 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,586 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:58,586 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,587 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,588 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,590 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 05:23:58,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,592 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,595 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,596 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:23:58,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,596 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:58,597 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,597 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,598 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,598 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,604 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:23:58,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,606 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,607 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,608 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:58,608 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:23:58,609 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,609 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,610 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,610 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,610 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 05:23:58,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,700 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,700 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 58
[2020-09-25 05:23:58,701 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,701 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 76
[2020-09-25 05:23:58,701 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,701 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 05:23:58,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 34
[2020-09-25 05:23:58,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:23:58,702 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,717 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:23:58,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,726 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,785 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,785 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-25 05:23:58,785 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,786 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 63
[2020-09-25 05:23:58,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,786 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 05:23:58,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-25 05:23:58,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:23:58,787 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:23:58,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,854 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,854 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 05:23:58,854 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,854 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-25 05:23:58,855 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,855 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,855 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 05:23:58,855 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-25 05:23:58,855 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:23:58,856 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:23:58,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,885 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,915 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 05:23:58,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-25 05:23:58,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,917 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:23:58,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-25 05:23:58,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,954 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 05:23:58,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 05:23:58,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:58,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:23:58,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,962 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,965 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 05:23:58,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,970 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,970 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:23:58,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:58,971 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,971 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,972 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-25 05:23:58,972 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,972 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:23:58,978 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190
[2020-09-25 05:23:58,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,980 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,982 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,982 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:58,983 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,983 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:23:58,983 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,983 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:58,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,984 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:23:58,986 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200
[2020-09-25 05:23:58,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:23:58,988 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:23:58,991 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:23:58,991 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:23:58,991 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:23:58,991 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:23:58,992 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:23:58,992 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:23:58,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:23:58,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:23:58,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:23:58,993 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:23:59,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 05:23:59,042 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490417048]
[2020-09-25 05:23:59,042 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:23:59,043 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 05:23:59,043 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406267050]
[2020-09-25 05:23:59,043 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 05:23:59,044 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:23:59,044 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 05:23:59,045 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 05:23:59,045 INFO  L87              Difference]: Start difference. First operand 665 states and 752 transitions. Second operand 10 states.
[2020-09-25 05:24:00,721 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 05:24:01,037 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 05:24:01,374 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-25 05:24:01,687 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 05:24:02,026 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 05:24:02,332 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 05:24:03,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:24:03,585 INFO  L93              Difference]: Finished difference Result 1327 states and 1563 transitions.
[2020-09-25 05:24:03,588 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 05:24:03,588 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 213
[2020-09-25 05:24:03,589 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:24:03,595 INFO  L225             Difference]: With dead ends: 1327
[2020-09-25 05:24:03,596 INFO  L226             Difference]: Without dead ends: 777
[2020-09-25 05:24:03,598 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2020-09-25 05:24:03,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 777 states.
[2020-09-25 05:24:03,695 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 684.
[2020-09-25 05:24:03,696 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 684 states.
[2020-09-25 05:24:03,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 772 transitions.
[2020-09-25 05:24:03,700 INFO  L78                 Accepts]: Start accepts. Automaton has 684 states and 772 transitions. Word has length 213
[2020-09-25 05:24:03,701 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:24:03,701 INFO  L479      AbstractCegarLoop]: Abstraction has 684 states and 772 transitions.
[2020-09-25 05:24:03,701 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 05:24:03,701 INFO  L276                IsEmpty]: Start isEmpty. Operand 684 states and 772 transitions.
[2020-09-25 05:24:03,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2020-09-25 05:24:03,704 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 05:24:03,705 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:24:03,705 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 05:24:03,705 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:24:03,705 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:24:03,706 INFO  L82        PathProgramCache]: Analyzing trace with hash 1415592178, now seen corresponding path program 1 times
[2020-09-25 05:24:03,706 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:24:03,706 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166777762]
[2020-09-25 05:24:03,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:24:03,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:03,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,501 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,501 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 260
[2020-09-25 05:24:04,501 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,501 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 737
[2020-09-25 05:24:04,502 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,502 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:24:04,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 197
[2020-09-25 05:24:04,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 05:24:04,503 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:04,773 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 05:24:04,774 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:24:04,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,790 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,874 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,875 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:24:04,875 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,875 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 92
[2020-09-25 05:24:04,875 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,875 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:04,905 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 05:24:04,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,906 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,908 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,908 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:24:04,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,908 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:24:04,909 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,909 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,910 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:04,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 05:24:04,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,913 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,913 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:24:04,913 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,913 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 05:24:04,913 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,914 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,914 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:04,915 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 05:24:04,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,920 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,920 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:24:04,921 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,921 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:24:04,921 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,921 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,922 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:04,925 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 05:24:04,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,928 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,929 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 05:24:04,929 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,929 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:24:04,929 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,930 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,930 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,930 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,930 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,930 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:04,940 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 05:24:04,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,942 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,943 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,943 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:24:04,943 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,943 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 05:24:04,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,944 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,944 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,944 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,945 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:04,946 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 05:24:04,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,950 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,950 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 05:24:04,950 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,950 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:24:04,951 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,951 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,952 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:04,957 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:24:04,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:04,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:04,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:24:04,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:04,960 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 05:24:04,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:04,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:04,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:04,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:04,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:04,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:04,972 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 05:24:04,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:04,983 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,034 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,034 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 58
[2020-09-25 05:24:05,034 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,034 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-25 05:24:05,034 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,035 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:24:05,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 26
[2020-09-25 05:24:05,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 05:24:05,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,039 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:24:05,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,093 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,094 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-25 05:24:05,094 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,094 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 51
[2020-09-25 05:24:05,094 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,095 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:24:05,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-25 05:24:05,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 05:24:05,095 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:24:05,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:24:05,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,147 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,147 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 05:24:05,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 05:24:05,148 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 05:24:05,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,178 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,178 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 05:24:05,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 05:24:05,180 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,212 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 05:24:05,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 05:24:05,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:24:05,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 05:24:05,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 05:24:05,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,245 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,247 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-25 05:24:05,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:05,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,252 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190
[2020-09-25 05:24:05,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,255 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,255 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:24:05,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:24:05,255 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,256 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:05,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:24:05,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:05,256 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200
[2020-09-25 05:24:05,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:24:05,259 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:24:05,259 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:24:05,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 05:24:05,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:24:05,261 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:24:05,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 05:24:05,285 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166777762]
[2020-09-25 05:24:05,285 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:24:05,285 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 05:24:05,285 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679788903]
[2020-09-25 05:24:05,286 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 05:24:05,286 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:24:05,286 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 05:24:05,286 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-09-25 05:24:05,287 INFO  L87              Difference]: Start difference. First operand 684 states and 772 transitions. Second operand 9 states.