/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 04:10:51,696 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 04:10:51,700 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 04:10:51,727 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 04:10:51,727 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 04:10:51,728 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 04:10:51,730 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 04:10:51,732 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 04:10:51,733 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 04:10:51,734 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 04:10:51,735 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 04:10:51,736 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 04:10:51,737 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 04:10:51,738 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 04:10:51,743 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 04:10:51,744 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 04:10:51,747 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 04:10:51,750 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 04:10:51,754 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 04:10:51,756 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 04:10:51,761 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 04:10:51,762 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 04:10:51,767 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 04:10:51,767 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 04:10:51,772 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 04:10:51,773 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 04:10:51,773 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 04:10:51,777 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 04:10:51,777 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 04:10:51,779 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 04:10:51,780 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 04:10:51,781 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 04:10:51,782 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 04:10:51,784 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 04:10:51,786 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 04:10:51,786 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 04:10:51,787 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 04:10:51,787 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 04:10:51,787 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 04:10:51,789 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 04:10:51,790 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 04:10:51,791 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 04:10:51,858 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 04:10:51,858 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 04:10:51,859 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 04:10:51,859 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 04:10:51,860 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 04:10:51,860 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 04:10:51,860 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 04:10:51,860 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 04:10:51,861 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 04:10:51,864 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 04:10:51,864 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 04:10:51,865 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 04:10:51,867 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 04:10:51,867 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 04:10:51,867 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 04:10:51,867 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 04:10:51,867 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:10:51,868 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 04:10:51,868 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 04:10:51,868 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 04:10:51,868 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 04:10:51,868 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 04:10:51,869 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 04:10:51,869 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 04:10:51,869 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
[2020-09-25 04:10:52,342 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 04:10:52,369 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 04:10:52,376 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 04:10:52,378 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 04:10:52,378 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 04:10:52,380 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c
[2020-09-25 04:10:52,469 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43dd09f57/feebc15632da4116a7ca6472db227bd8/FLAG612679c53
[2020-09-25 04:10:53,129 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 04:10:53,130 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c
[2020-09-25 04:10:53,151 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43dd09f57/feebc15632da4116a7ca6472db227bd8/FLAG612679c53
[2020-09-25 04:10:53,343 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43dd09f57/feebc15632da4116a7ca6472db227bd8
[2020-09-25 04:10:53,355 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 04:10:53,361 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 04:10:53,362 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 04:10:53,362 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 04:10:53,369 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 04:10:53,370 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:53" (1/1) ...
[2020-09-25 04:10:53,375 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8aa329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:53, skipping insertion in model container
[2020-09-25 04:10:53,375 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:53" (1/1) ...
[2020-09-25 04:10:53,385 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 04:10:53,442 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 04:10:53,910 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:10:53,926 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 04:10:54,026 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:10:54,065 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 04:10:54,065 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54 WrapperNode
[2020-09-25 04:10:54,066 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 04:10:54,067 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 04:10:54,067 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 04:10:54,067 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 04:10:54,081 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,082 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,103 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,104 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,139 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,151 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,157 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
[2020-09-25 04:10:54,166 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 04:10:54,167 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 04:10:54,167 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 04:10:54,167 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 04:10:54,168 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:10:54,247 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 04:10:54,247 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 04:10:54,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:10:54,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 04:10:54,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 04:10:54,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 04:10:54,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 04:10:54,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 04:10:54,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 04:10:54,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 04:10:54,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 04:10:54,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 04:10:54,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 04:10:54,251 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 04:10:54,251 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:10:54,251 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 04:10:54,251 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 04:10:54,251 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 04:10:54,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 04:10:54,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 04:10:54,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 04:10:54,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 04:10:54,252 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-25 04:10:54,253 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 04:10:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 04:10:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:10:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 04:10:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 04:10:54,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 04:10:54,254 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 04:10:54,255 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 04:10:54,256 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 04:10:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 04:10:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 04:10:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 04:10:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 04:10:54,257 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 04:10:54,258 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 04:10:54,259 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 04:10:54,260 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 04:10:54,261 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 04:10:54,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 04:10:54,263 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 04:10:54,263 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 04:10:54,263 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 04:10:54,263 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 04:10:55,559 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 04:10:55,559 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 04:10:55,566 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:55 BoogieIcfgContainer
[2020-09-25 04:10:55,567 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 04:10:55,568 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 04:10:55,568 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 04:10:55,572 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 04:10:55,572 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:10:53" (1/3) ...
[2020-09-25 04:10:55,573 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b917638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:55, skipping insertion in model container
[2020-09-25 04:10:55,574 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:54" (2/3) ...
[2020-09-25 04:10:55,574 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b917638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:55, skipping insertion in model container
[2020-09-25 04:10:55,574 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:55" (3/3) ...
[2020-09-25 04:10:55,577 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c
[2020-09-25 04:10:55,589 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 04:10:55,601 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 04:10:55,629 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 04:10:55,665 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 04:10:55,665 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 04:10:55,665 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 04:10:55,666 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 04:10:55,666 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 04:10:55,666 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 04:10:55,666 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 04:10:55,666 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 04:10:55,698 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 04:10:55,718 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-25 04:10:55,719 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:10:55,721 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:10:55,721 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:10:55,729 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:10:55,730 INFO  L82        PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times
[2020-09-25 04:10:55,742 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:10:55,743 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130215687]
[2020-09-25 04:10:55,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:10:56,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:10:56,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:10:56,449 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:10:57,080 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:10:58,261 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:10:58,487 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,149 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,150 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-25 04:11:01,150 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 04:11:01,150 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5040
[2020-09-25 04:11:01,155 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,156 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 04:11:01,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 15
[2020-09-25 04:11:01,539 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:01,542 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:01,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,673 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,674 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:01,674 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,674 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-09-25 04:11:01,675 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,675 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:01,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,676 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,745 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:01,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,749 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,752 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:01,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:01,754 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,755 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:01,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:01,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,762 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,763 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,764 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:01,764 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,764 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:01,764 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,765 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:01,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,766 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,768 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:01,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,772 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,776 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,776 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:01,777 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,777 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:11:01,777 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,777 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:01,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,778 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,780 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:01,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,783 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,784 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,785 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:01,785 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,785 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:01,785 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,786 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:01,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,787 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,788 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 04:11:01,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,792 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,794 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,795 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:01,795 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,795 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:01,795 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,796 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:01,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,796 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,799 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 04:11:01,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:01,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:01,806 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:01,806 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:01,806 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:01,806 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:01,807 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:01,807 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:01,807 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:01,807 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:01,808 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:01,808 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:01,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:11:01,846 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130215687]
[2020-09-25 04:11:01,849 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:01,850 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 04:11:01,851 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759044843]
[2020-09-25 04:11:01,864 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 04:11:01,865 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:01,893 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 04:11:01,894 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:11:01,898 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 3 states.
[2020-09-25 04:11:03,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:03,791 INFO  L93              Difference]: Finished difference Result 489 states and 580 transitions.
[2020-09-25 04:11:03,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-25 04:11:03,793 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-25 04:11:03,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:03,814 INFO  L225             Difference]: With dead ends: 489
[2020-09-25 04:11:03,815 INFO  L226             Difference]: Without dead ends: 302
[2020-09-25 04:11:03,822 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:11:03,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 302 states.
[2020-09-25 04:11:03,936 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261.
[2020-09-25 04:11:03,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 261 states.
[2020-09-25 04:11:03,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions.
[2020-09-25 04:11:03,944 INFO  L78                 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 142
[2020-09-25 04:11:03,945 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:03,946 INFO  L479      AbstractCegarLoop]: Abstraction has 261 states and 283 transitions.
[2020-09-25 04:11:03,946 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 04:11:03,946 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions.
[2020-09-25 04:11:03,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-25 04:11:03,957 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:03,958 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:11:03,958 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 04:11:03,958 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:03,959 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:03,959 INFO  L82        PathProgramCache]: Analyzing trace with hash -484006528, now seen corresponding path program 1 times
[2020-09-25 04:11:03,961 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:03,961 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884574278]
[2020-09-25 04:11:03,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:04,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:04,083 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:04,184 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:04,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:05,754 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,062 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,063 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 174
[2020-09-25 04:11:09,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 04:11:09,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5034
[2020-09-25 04:11:09,064 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,064 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 04:11:09,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-25 04:11:09,065 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,417 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:09,418 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:09,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,494 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,707 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,707 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:09,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,708 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-25 04:11:09,708 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,708 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:09,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 04:11:09,710 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,758 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:09,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,760 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,763 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,763 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:09,764 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,764 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:09,764 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,764 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:09,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:11:09,765 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,770 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:09,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,773 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,776 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,777 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:09,777 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,777 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:11:09,777 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,777 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:09,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:11:09,778 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,781 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:09,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,784 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,802 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,803 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:09,803 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,803 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-09-25 04:11:09,803 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,803 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:09,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:11:09,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:09,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,812 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,812 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:09,812 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,812 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:09,813 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,813 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:09,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:09,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:11:09,814 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 04:11:09,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,817 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,819 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:09,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:09,820 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,820 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:09,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:09,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:09,821 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,823 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:11:09,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:09,825 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:09,826 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:09,827 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:09,827 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:09,827 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:09,827 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:09,828 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:09,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:09,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:09,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:09,828 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:09,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:11:09,857 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884574278]
[2020-09-25 04:11:09,857 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:09,859 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 04:11:09,859 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157709271]
[2020-09-25 04:11:09,864 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 04:11:09,864 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:09,865 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 04:11:09,865 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 04:11:09,865 INFO  L87              Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 4 states.
[2020-09-25 04:11:10,410 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:11,452 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:11,453 INFO  L93              Difference]: Finished difference Result 453 states and 521 transitions.
[2020-09-25 04:11:11,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 04:11:11,453 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-09-25 04:11:11,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:11,466 INFO  L225             Difference]: With dead ends: 453
[2020-09-25 04:11:11,466 INFO  L226             Difference]: Without dead ends: 302
[2020-09-25 04:11:11,469 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:11:11,470 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 302 states.
[2020-09-25 04:11:11,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261.
[2020-09-25 04:11:11,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 261 states.
[2020-09-25 04:11:11,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions.
[2020-09-25 04:11:11,563 INFO  L78                 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143
[2020-09-25 04:11:11,565 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:11,565 INFO  L479      AbstractCegarLoop]: Abstraction has 261 states and 282 transitions.
[2020-09-25 04:11:11,565 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 04:11:11,565 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions.
[2020-09-25 04:11:11,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2020-09-25 04:11:11,569 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:11,569 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:11:11,570 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 04:11:11,570 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:11,570 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:11,570 INFO  L82        PathProgramCache]: Analyzing trace with hash 1452522798, now seen corresponding path program 1 times
[2020-09-25 04:11:11,570 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:11,571 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367561669]
[2020-09-25 04:11:11,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:11,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,679 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:12,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:13,471 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:14,376 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:14,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:15,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:16,651 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:16,652 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 04:11:16,652 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-25 04:11:16,652 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5024
[2020-09-25 04:11:16,652 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:16,653 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:16,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:11:16,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 152
[2020-09-25 04:11:16,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 04:11:16,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:16,968 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:16,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:16,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:16,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,076 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:17,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-25 04:11:17,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,077 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,078 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,112 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:17,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,114 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,115 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:17,116 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,116 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:17,116 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,116 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,117 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,118 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:17,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,120 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,121 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,121 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:17,122 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:17,122 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,122 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,123 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:17,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,129 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,130 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:17,130 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,130 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:17,130 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,130 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,131 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,133 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:17,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:17,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,136 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:17,136 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,137 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,145 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 04:11:17,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,158 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,158 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 04:11:17,158 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,159 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 04:11:17,159 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,159 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:11:17,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 4
[2020-09-25 04:11:17,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 04:11:17,160 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:17,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,185 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,185 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 04:11:17,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 04:11:17,186 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,186 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 04:11:17,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 04:11:17,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 04:11:17,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,212 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:17,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,219 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:17,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:17,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,220 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:17,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:17,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:11:17,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143
[2020-09-25 04:11:17,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,234 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,235 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:17,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:17,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,235 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:17,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153
[2020-09-25 04:11:17,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:17,240 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:17,241 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:17,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:17,241 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:17,242 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:17,242 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:17,242 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:17,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:17,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:17,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:17,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:17,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:11:17,293 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367561669]
[2020-09-25 04:11:17,293 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:17,294 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 04:11:17,294 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051650342]
[2020-09-25 04:11:17,297 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 04:11:17,297 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:17,297 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 04:11:17,299 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 04:11:17,300 INFO  L87              Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 7 states.
[2020-09-25 04:11:17,966 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:19,400 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:20,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:20,910 INFO  L93              Difference]: Finished difference Result 618 states and 742 transitions.
[2020-09-25 04:11:20,910 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 04:11:20,911 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 165
[2020-09-25 04:11:20,912 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:20,917 INFO  L225             Difference]: With dead ends: 618
[2020-09-25 04:11:20,917 INFO  L226             Difference]: Without dead ends: 467
[2020-09-25 04:11:20,919 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2020-09-25 04:11:20,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 467 states.
[2020-09-25 04:11:21,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 384.
[2020-09-25 04:11:21,002 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 384 states.
[2020-09-25 04:11:21,005 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 427 transitions.
[2020-09-25 04:11:21,005 INFO  L78                 Accepts]: Start accepts. Automaton has 384 states and 427 transitions. Word has length 165
[2020-09-25 04:11:21,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:21,006 INFO  L479      AbstractCegarLoop]: Abstraction has 384 states and 427 transitions.
[2020-09-25 04:11:21,006 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 04:11:21,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 384 states and 427 transitions.
[2020-09-25 04:11:21,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 04:11:21,009 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:21,009 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:11:21,009 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 04:11:21,009 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:21,010 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:21,010 INFO  L82        PathProgramCache]: Analyzing trace with hash 1700590291, now seen corresponding path program 1 times
[2020-09-25 04:11:21,010 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:21,010 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628595238]
[2020-09-25 04:11:21,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:21,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:21,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:21,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:22,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:22,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:22,785 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:22,874 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,085 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 221
[2020-09-25 04:11:26,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 04:11:26,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5027
[2020-09-25 04:11:26,086 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,086 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:26,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 04:11:26,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 04:11:26,087 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,403 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:26,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:26,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,425 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,509 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,510 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:26,510 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,510 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-25 04:11:26,510 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,511 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,511 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,546 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:26,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,549 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,549 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:26,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,550 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,551 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:26,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,553 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,555 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,555 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,555 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,555 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,555 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,556 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,556 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,557 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:26,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,559 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,562 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,562 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,562 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:26,563 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,563 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,564 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,565 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:26,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,568 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,568 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,568 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,568 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:26,569 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,569 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,570 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,577 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 04:11:26,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,596 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,596 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 04:11:26,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,596 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 04:11:26,597 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,597 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 47
[2020-09-25 04:11:26,598 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,598 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,601 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:26,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,605 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,614 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 04:11:26,615 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,615 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 04:11:26,615 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,615 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,616 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:26,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,621 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,628 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,628 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 04:11:26,628 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,628 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 04:11:26,629 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,629 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,632 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 04:11:26,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,637 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,637 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 04:11:26,637 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,637 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:26,638 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,638 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,639 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,641 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 04:11:26,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,642 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,644 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,644 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,645 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,645 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2020-09-25 04:11:26,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,652 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,652 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,653 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,653 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,653 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,653 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:26,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,654 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,655 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-09-25 04:11:26,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,662 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,662 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:11:26,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,663 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:26,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:11:26,706 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628595238]
[2020-09-25 04:11:26,706 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:26,706 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 04:11:26,707 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925174462]
[2020-09-25 04:11:26,707 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 04:11:26,707 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:26,708 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 04:11:26,708 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:11:26,708 INFO  L87              Difference]: Start difference. First operand 384 states and 427 transitions. Second operand 5 states.
[2020-09-25 04:11:27,363 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:28,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:28,415 INFO  L93              Difference]: Finished difference Result 624 states and 699 transitions.
[2020-09-25 04:11:28,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 04:11:28,415 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 180
[2020-09-25 04:11:28,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:28,419 INFO  L225             Difference]: With dead ends: 624
[2020-09-25 04:11:28,419 INFO  L226             Difference]: Without dead ends: 410
[2020-09-25 04:11:28,421 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 04:11:28,422 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 410 states.
[2020-09-25 04:11:28,484 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 357.
[2020-09-25 04:11:28,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 357 states.
[2020-09-25 04:11:28,491 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 384 transitions.
[2020-09-25 04:11:28,491 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 384 transitions. Word has length 180
[2020-09-25 04:11:28,492 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:28,492 INFO  L479      AbstractCegarLoop]: Abstraction has 357 states and 384 transitions.
[2020-09-25 04:11:28,492 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 04:11:28,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 384 transitions.
[2020-09-25 04:11:28,494 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2020-09-25 04:11:28,495 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:28,495 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:11:28,495 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 04:11:28,495 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:28,496 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:28,496 INFO  L82        PathProgramCache]: Analyzing trace with hash 1067841542, now seen corresponding path program 1 times
[2020-09-25 04:11:28,496 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:28,496 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792764469]
[2020-09-25 04:11:28,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:28,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:28,592 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:29,413 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:29,497 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:29,973 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:30,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:33,571 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 228
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5028
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:11:33,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 157
[2020-09-25 04:11:33,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-09-25 04:11:33,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:33,903 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:33,904 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:33,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:33,931 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,034 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,034 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:34,035 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,035 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 116
[2020-09-25 04:11:34,035 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,035 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,036 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,068 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:34,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,071 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,071 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,071 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,071 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:34,072 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,072 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,073 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,074 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:34,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,076 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,077 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,078 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,078 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:34,078 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,080 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:34,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,084 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,087 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,087 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,088 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:11:34,088 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,088 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,089 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,090 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:34,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,092 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,093 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,093 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,093 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,093 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:34,093 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,094 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,094 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,105 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 04:11:34,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,111 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,125 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,181 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,181 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 04:11:34,181 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:11:34,181 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 72
[2020-09-25 04:11:34,182 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,182 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,182 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 04:11:34,183 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:34,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,212 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,213 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 04:11:34,213 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-09-25 04:11:34,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,214 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 04:11:34,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,220 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:34,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,238 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 04:11:34,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,239 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 04:11:34,239 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,240 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-09-25 04:11:34,240 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 04:11:34,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,245 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,249 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 04:11:34,249 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,249 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:34,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,250 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 04:11:34,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,257 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,257 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,257 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,258 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:34,258 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,258 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 04:11:34,259 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,263 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167
[2020-09-25 04:11:34,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,268 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,268 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,268 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,269 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:34,269 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,269 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:11:34,270 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,271 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177
[2020-09-25 04:11:34,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,281 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 04:11:34,282 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,282 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 04:11:34,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:11:34,283 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 04:11:34,363 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792764469]
[2020-09-25 04:11:34,363 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:34,363 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 04:11:34,363 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438908701]
[2020-09-25 04:11:34,365 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 04:11:34,365 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:34,365 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 04:11:34,366 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 04:11:34,366 INFO  L87              Difference]: Start difference. First operand 357 states and 384 transitions. Second operand 9 states.
[2020-09-25 04:11:34,955 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:36,472 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 04:11:36,769 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:37,105 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 04:11:37,427 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:11:37,783 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:11:38,157 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 195
[2020-09-25 04:11:38,435 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 04:11:38,750 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:11:39,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:39,676 INFO  L93              Difference]: Finished difference Result 419 states and 468 transitions.
[2020-09-25 04:11:39,677 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 04:11:39,677 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 189
[2020-09-25 04:11:39,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:39,681 INFO  L225             Difference]: With dead ends: 419
[2020-09-25 04:11:39,681 INFO  L226             Difference]: Without dead ends: 416
[2020-09-25 04:11:39,682 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-25 04:11:39,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-25 04:11:39,727 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 357.
[2020-09-25 04:11:39,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 357 states.
[2020-09-25 04:11:39,731 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 383 transitions.
[2020-09-25 04:11:39,731 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 383 transitions. Word has length 189
[2020-09-25 04:11:39,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:39,732 INFO  L479      AbstractCegarLoop]: Abstraction has 357 states and 383 transitions.
[2020-09-25 04:11:39,732 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 04:11:39,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 383 transitions.
[2020-09-25 04:11:39,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-09-25 04:11:39,735 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:39,735 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 04:11:39,735 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 04:11:39,736 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:39,736 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:39,736 INFO  L82        PathProgramCache]: Analyzing trace with hash -1791967861, now seen corresponding path program 1 times
[2020-09-25 04:11:39,736 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:39,737 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92716532]
[2020-09-25 04:11:39,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:39,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:39,826 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:40,221 FATAL L256   erpolLogProxyWrapper]: Now shrinking...