/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=1.0 --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_spec2_product31.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:38:48,466 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:38:48,470 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:38:48,499 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:38:48,500 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:38:48,501 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:38:48,503 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:38:48,505 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:38:48,506 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:38:48,507 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:38:48,509 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:38:48,510 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:38:48,510 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:38:48,512 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:38:48,513 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:38:48,514 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:38:48,515 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:38:48,516 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:38:48,518 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:38:48,520 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:38:48,522 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:38:48,524 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:38:48,525 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:38:48,526 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:38:48,529 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:38:48,530 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:38:48,530 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:38:48,531 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:38:48,532 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:38:48,533 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:38:48,534 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:38:48,535 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:38:48,536 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:38:48,537 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:38:48,538 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:38:48,539 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:38:48,540 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:38:48,540 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:38:48,540 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:38:48,541 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:38:48,542 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:38:48,543 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 08:38:48,591 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 08:38:48,591 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:38:48,595 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:38:48,595 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 08:38:48,596 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 08:38:48,596 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:38:48,596 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 08:38:48,597 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 08:38:48,597 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 08:38:48,597 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 08:38:48,598 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:38:48,598 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:38:48,598 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:38:48,599 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 08:38:48,599 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 08:38:48,599 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 08:38:48,600 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:38:48,600 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:38:48,600 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 08:38:48,600 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 08:38:48,601 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 08:38:48,601 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:38:48,601 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:38:48,602 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:38:48,602 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:38:48,602 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 08:38:48,602 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:38:48,602 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:38:48,603 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 08:38:48,603 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true;
[2020-09-25 08:38:49,054 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:38:49,071 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:38:49,075 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:38:49,077 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 08:38:49,078 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 08:38:49,079 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c
[2020-09-25 08:38:49,171 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c103b8b/b457d1557f0e4471af0534e62283530f/FLAG171c81442
[2020-09-25 08:38:49,764 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 08:38:49,765 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product31.cil.c
[2020-09-25 08:38:49,780 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c103b8b/b457d1557f0e4471af0534e62283530f/FLAG171c81442
[2020-09-25 08:38:50,038 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25c103b8b/b457d1557f0e4471af0534e62283530f
[2020-09-25 08:38:50,050 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:38:50,055 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:38:50,056 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:50,056 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:38:50,060 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:38:50,061 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,066 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50, skipping insertion in model container
[2020-09-25 08:38:50,066 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,075 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 08:38:50,148 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:38:50,574 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:50,590 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 08:38:50,748 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:50,804 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 08:38:50,805 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50 WrapperNode
[2020-09-25 08:38:50,805 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:50,806 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:38:50,806 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:38:50,807 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:38:50,824 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,825 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,851 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,851 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,883 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,894 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,899 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (1/1) ...
[2020-09-25 08:38:50,910 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:38:50,910 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:38:50,911 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:38:50,911 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:38:50,914 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (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 08:38:50,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 08:38:50,988 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:50,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 08:38:50,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 08:38:50,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:38:50,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 08:38:50,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 08:38:50,990 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 08:38:50,990 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 08:38:50,990 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 08:38:50,990 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 08:38:50,990 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 08:38:50,991 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 08:38:50,991 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 08:38:50,991 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 08:38:50,991 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 08:38:50,991 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 08:38:50,992 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:38:50,993 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 08:38:50,994 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 08:38:50,995 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 08:38:50,996 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 08:38:50,997 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 08:38:50,998 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 08:38:50,999 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:38:51,000 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:51,001 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:51,002 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:38:51,002 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 08:38:51,002 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 08:38:51,002 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 08:38:51,002 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 08:38:51,003 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:38:51,004 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:38:51,004 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:38:52,128 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:38:52,128 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 08:38:52,135 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:52 BoogieIcfgContainer
[2020-09-25 08:38:52,135 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:38:52,137 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:38:52,137 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:38:52,140 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:38:52,140 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:50" (1/3) ...
[2020-09-25 08:38:52,141 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f72e030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:52, skipping insertion in model container
[2020-09-25 08:38:52,142 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:50" (2/3) ...
[2020-09-25 08:38:52,142 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f72e030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:52, skipping insertion in model container
[2020-09-25 08:38:52,142 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:52" (3/3) ...
[2020-09-25 08:38:52,144 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product31.cil.c
[2020-09-25 08:38:52,155 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:38:52,167 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:38:52,189 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:38:52,223 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:38:52,223 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 08:38:52,224 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:38:52,224 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:38:52,224 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:38:52,224 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 08:38:52,224 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:38:52,224 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:38:52,255 INFO  L276                IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-25 08:38:52,274 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 08:38:52,274 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:52,276 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]
[2020-09-25 08:38:52,276 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:52,284 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:52,285 INFO  L82        PathProgramCache]: Analyzing trace with hash -154587198, now seen corresponding path program 1 times
[2020-09-25 08:38:52,296 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:52,297 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581379630]
[2020-09-25 08:38:52,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:52,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:52,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:53,051 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:54,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:55,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:56,208 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:57,553 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:57,753 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:57,754 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 08:38:57,754 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 08:38:57,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5070
[2020-09-25 08:38:57,760 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:57,760 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:57,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:57,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 08:38:57,770 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:57,770 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 15
[2020-09-25 08:38:58,221 WARN  L193               SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:58,224 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:58,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,432 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,432 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:58,433 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,433 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 166
[2020-09-25 08:38:58,434 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,434 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,435 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,508 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:58,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,512 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,513 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,513 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,513 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:58,513 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,514 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,517 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:58,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,521 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:58,522 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,523 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,526 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:58,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,533 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,534 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,534 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,534 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:38:58,535 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,535 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:38:58,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:58,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,541 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,543 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,543 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,544 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,544 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,544 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,544 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,545 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,556 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:58,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,559 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,561 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,561 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:58,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:58,562 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,562 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,563 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,565 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:38:58,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,569 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,569 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,570 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,570 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,571 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:58,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,572 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,574 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:38:58,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,579 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,580 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,580 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,581 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:58,581 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,582 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:58,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,636 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 08:38:58,638 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581379630]
[2020-09-25 08:38:58,641 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:58,641 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 08:38:58,642 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68920138]
[2020-09-25 08:38:58,650 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 08:38:58,650 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:58,677 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 08:38:58,678 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:38:58,682 INFO  L87              Difference]: Start difference. First operand 320 states. Second operand 4 states.
[2020-09-25 08:39:00,442 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:00,442 INFO  L93              Difference]: Finished difference Result 483 states and 578 transitions.
[2020-09-25 08:39:00,443 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 08:39:00,444 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 08:39:00,446 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:00,468 INFO  L225             Difference]: With dead ends: 483
[2020-09-25 08:39:00,468 INFO  L226             Difference]: Without dead ends: 309
[2020-09-25 08:39:00,474 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:39:00,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 309 states.
[2020-09-25 08:39:00,604 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 259.
[2020-09-25 08:39:00,606 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 259 states.
[2020-09-25 08:39:00,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 284 transitions.
[2020-09-25 08:39:00,613 INFO  L78                 Accepts]: Start accepts. Automaton has 259 states and 284 transitions. Word has length 148
[2020-09-25 08:39:00,617 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:00,617 INFO  L479      AbstractCegarLoop]: Abstraction has 259 states and 284 transitions.
[2020-09-25 08:39:00,617 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 08:39:00,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 259 states and 284 transitions.
[2020-09-25 08:39:00,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 08:39:00,631 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:00,631 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]
[2020-09-25 08:39:00,632 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:39:00,632 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:00,632 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:00,632 INFO  L82        PathProgramCache]: Analyzing trace with hash 378109291, now seen corresponding path program 1 times
[2020-09-25 08:39:00,633 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:00,633 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646447210]
[2020-09-25 08:39:00,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:00,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:00,757 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:00,857 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:02,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:03,222 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:04,433 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:05,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:05,732 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:05,732 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 08:39:05,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 08:39:05,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5028
[2020-09-25 08:39:05,733 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:05,733 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:05,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:05,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 08:39:05,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 08:39:05,734 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,023 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:06,024 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:06,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,044 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,135 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:06,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,136 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-25 08:39:06,136 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,136 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:06,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,214 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,214 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,215 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,215 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,215 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,215 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,216 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,218 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:06,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,220 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,222 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,222 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,222 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:06,223 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,223 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,224 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:06,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,227 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,232 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,233 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,233 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:39:06,233 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,233 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,234 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,236 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:06,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,238 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,240 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,241 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,242 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,251 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:06,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,255 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,255 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:06,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,256 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,256 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,259 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 08:39:06,260 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 08:39:06,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,268 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,269 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,270 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:06,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,272 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 08:39:06,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,276 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,277 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,277 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:06,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,278 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,310 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 08:39:06,311 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646447210]
[2020-09-25 08:39:06,311 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:06,311 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:39:06,312 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683735037]
[2020-09-25 08:39:06,315 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:39:06,315 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:06,315 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:39:06,316 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:39:06,316 INFO  L87              Difference]: Start difference. First operand 259 states and 284 transitions. Second operand 5 states.
[2020-09-25 08:39:06,945 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:39:07,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:07,999 INFO  L93              Difference]: Finished difference Result 406 states and 465 transitions.
[2020-09-25 08:39:08,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 08:39:08,000 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 08:39:08,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:08,004 INFO  L225             Difference]: With dead ends: 406
[2020-09-25 08:39:08,005 INFO  L226             Difference]: Without dead ends: 298
[2020-09-25 08:39:08,007 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:39:08,008 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-09-25 08:39:08,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 249.
[2020-09-25 08:39:08,047 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-25 08:39:08,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 271 transitions.
[2020-09-25 08:39:08,049 INFO  L78                 Accepts]: Start accepts. Automaton has 249 states and 271 transitions. Word has length 149
[2020-09-25 08:39:08,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:08,050 INFO  L479      AbstractCegarLoop]: Abstraction has 249 states and 271 transitions.
[2020-09-25 08:39:08,050 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:39:08,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 249 states and 271 transitions.
[2020-09-25 08:39:08,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-25 08:39:08,052 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:08,052 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]
[2020-09-25 08:39:08,053 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:39:08,053 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:08,053 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:08,053 INFO  L82        PathProgramCache]: Analyzing trace with hash 1617288806, now seen corresponding path program 1 times
[2020-09-25 08:39:08,054 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:08,054 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745467789]
[2020-09-25 08:39:08,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:08,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:08,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:08,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:09,727 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:11,216 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:12,370 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,152 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,152 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 189
[2020-09-25 08:39:13,153 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:39:13,153 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5050
[2020-09-25 08:39:13,153 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,154 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 08:39:13,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 83
[2020-09-25 08:39:13,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 08:39:13,155 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,544 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:13,546 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:13,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,646 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,852 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,852 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:13,852 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,852 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 240
[2020-09-25 08:39:13,853 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,853 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:39:13,854 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:13,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,898 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,899 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:13,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:13,899 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,900 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:13,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,902 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:13,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,906 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,906 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:13,906 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,907 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:13,907 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,907 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:13,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:13,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,913 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,920 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,921 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:13,921 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,921 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:39:13,921 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,921 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:13,922 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,924 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:13,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,926 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,931 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:13,931 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,932 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:39:13,932 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,933 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:13,933 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:13,943 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:13,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,949 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,949 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:13,949 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,949 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:13,949 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,950 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:13,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:39:13,950 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:13,952 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:39:13,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,954 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:13,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:13,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:13,962 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:13,985 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 08:39:13,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:13,987 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,988 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:13,989 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:13,989 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:13,989 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:13,989 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:13,990 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:13,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:13,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:13,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:13,990 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:14,023 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 08:39:14,024 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745467789]
[2020-09-25 08:39:14,024 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:14,025 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 08:39:14,025 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270852683]
[2020-09-25 08:39:14,026 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 08:39:14,026 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:14,026 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 08:39:14,028 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 08:39:14,028 INFO  L87              Difference]: Start difference. First operand 249 states and 271 transitions. Second operand 9 states.
[2020-09-25 08:39:14,508 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:15,684 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:16,042 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:39:16,475 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:16,785 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:17,140 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-25 08:39:17,469 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:17,792 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 08:39:18,314 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:19,436 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:19,436 INFO  L93              Difference]: Finished difference Result 572 states and 676 transitions.
[2020-09-25 08:39:19,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-25 08:39:19,437 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 158
[2020-09-25 08:39:19,438 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:19,443 INFO  L225             Difference]: With dead ends: 572
[2020-09-25 08:39:19,443 INFO  L226             Difference]: Without dead ends: 438
[2020-09-25 08:39:19,445 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2020-09-25 08:39:19,446 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-25 08:39:19,529 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 365.
[2020-09-25 08:39:19,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 365 states.
[2020-09-25 08:39:19,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 407 transitions.
[2020-09-25 08:39:19,531 INFO  L78                 Accepts]: Start accepts. Automaton has 365 states and 407 transitions. Word has length 158
[2020-09-25 08:39:19,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:19,532 INFO  L479      AbstractCegarLoop]: Abstraction has 365 states and 407 transitions.
[2020-09-25 08:39:19,532 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 08:39:19,532 INFO  L276                IsEmpty]: Start isEmpty. Operand 365 states and 407 transitions.
[2020-09-25 08:39:19,535 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-25 08:39:19,535 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:19,535 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]
[2020-09-25 08:39:19,535 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:39:19,536 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:19,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:19,536 INFO  L82        PathProgramCache]: Analyzing trace with hash -1591650305, now seen corresponding path program 1 times
[2020-09-25 08:39:19,536 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:19,537 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52343817]
[2020-09-25 08:39:19,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:19,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:19,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:20,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:20,610 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:21,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:24,585 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:24,585 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 196
[2020-09-25 08:39:24,585 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:39:24,586 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 08:39:24,586 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:24,586 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:24,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:39:24,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 08:39:24,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 84
[2020-09-25 08:39:24,587 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:24,915 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:24,916 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:24,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:24,992 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,200 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,201 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:25,201 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,201 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 245
[2020-09-25 08:39:25,201 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,202 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 08:39:25,202 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:25,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,258 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,258 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,259 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,259 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,259 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,260 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:25,261 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,262 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:25,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,264 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,267 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,267 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,268 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,268 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,268 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,269 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:25,270 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,271 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:25,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:39:25,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,281 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:25,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:25,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,290 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,290 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:25,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,303 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:25,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,306 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,308 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,309 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:25,309 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,309 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,310 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:39:25,312 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:39:25,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,328 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,334 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,334 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:39:25,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,335 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:39:25,335 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:39:25,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 08:39:25,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,342 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,342 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:25,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,343 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:25,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,345 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 08:39:25,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,349 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:25,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,350 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:25,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,351 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,416 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 08:39:25,416 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52343817]
[2020-09-25 08:39:25,417 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:25,417 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 08:39:25,417 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14964931]
[2020-09-25 08:39:25,418 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 08:39:25,418 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:25,419 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 08:39:25,419 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 08:39:25,419 INFO  L87              Difference]: Start difference. First operand 365 states and 407 transitions. Second operand 6 states.
[2020-09-25 08:39:25,996 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:28,083 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:28,083 INFO  L93              Difference]: Finished difference Result 1002 states and 1195 transitions.
[2020-09-25 08:39:28,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 08:39:28,084 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 163
[2020-09-25 08:39:28,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:28,091 INFO  L225             Difference]: With dead ends: 1002
[2020-09-25 08:39:28,091 INFO  L226             Difference]: Without dead ends: 752
[2020-09-25 08:39:28,093 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 08:39:28,094 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 752 states.
[2020-09-25 08:39:28,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 606.
[2020-09-25 08:39:28,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 606 states.
[2020-09-25 08:39:28,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 691 transitions.
[2020-09-25 08:39:28,228 INFO  L78                 Accepts]: Start accepts. Automaton has 606 states and 691 transitions. Word has length 163
[2020-09-25 08:39:28,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:28,229 INFO  L479      AbstractCegarLoop]: Abstraction has 606 states and 691 transitions.
[2020-09-25 08:39:28,229 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 08:39:28,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 606 states and 691 transitions.
[2020-09-25 08:39:28,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 08:39:28,232 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:28,233 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]
[2020-09-25 08:39:28,233 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:39:28,233 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:28,234 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:28,234 INFO  L82        PathProgramCache]: Analyzing trace with hash -1958155959, now seen corresponding path program 1 times
[2020-09-25 08:39:28,234 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:28,234 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971237543]
[2020-09-25 08:39:28,234 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:28,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:28,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:28,616 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:28,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:30,065 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,312 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,312 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 08:39:33,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:39:33,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 08:39:33,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,313 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:39:33,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 08:39:33,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:39:33,313 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,618 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:33,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:33,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,706 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:33,706 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,706 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-09-25 08:39:33,707 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,707 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:33,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:33,708 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:33,752 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:33,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,754 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:33,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,755 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:33,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,755 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:33,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:33,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:33,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,760 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,760 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:33,761 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,761 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:33,761 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,761 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:33,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:33,762 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,763 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:33,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,764 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,768 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,768 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:33,768 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,768 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:33,768 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,769 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:33,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:33,769 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:33,771 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:33,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,773 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,774 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,774 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:33,775 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,775 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:33,775 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,776 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:33,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:33,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:33,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:33,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,792 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,796 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,796 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:33,796 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,796 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:33,797 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,797 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:33,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:39:33,798 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:39:33,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,819 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,820 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:39:33,820 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,820 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:39:33,820 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,821 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:33,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:39:33,821 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:33,834 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-09-25 08:39:33,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,837 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:39:33,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:33,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,841 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:33,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:39:33,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,845 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 08:39:33,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,849 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,850 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:33,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:33,851 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:33,853 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-25 08:39:33,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:33,855 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:33,857 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:33,857 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:33,857 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:33,857 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:33,858 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:33,858 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:33,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:33,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:33,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:33,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:33,895 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 08:39:33,895 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971237543]
[2020-09-25 08:39:33,895 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:33,896 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 08:39:33,896 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529250916]
[2020-09-25 08:39:33,896 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 08:39:33,896 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:33,897 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 08:39:33,897 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:39:33,897 INFO  L87              Difference]: Start difference. First operand 606 states and 691 transitions. Second operand 7 states.
[2020-09-25 08:39:34,445 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:37,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:37,131 INFO  L93              Difference]: Finished difference Result 1489 states and 1871 transitions.
[2020-09-25 08:39:37,132 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-25 08:39:37,132 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 172
[2020-09-25 08:39:37,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:37,144 INFO  L225             Difference]: With dead ends: 1489
[2020-09-25 08:39:37,145 INFO  L226             Difference]: Without dead ends: 1486
[2020-09-25 08:39:37,146 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342
[2020-09-25 08:39:37,148 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1486 states.
[2020-09-25 08:39:37,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 875.
[2020-09-25 08:39:37,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 875 states.
[2020-09-25 08:39:37,311 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1008 transitions.
[2020-09-25 08:39:37,312 INFO  L78                 Accepts]: Start accepts. Automaton has 875 states and 1008 transitions. Word has length 172
[2020-09-25 08:39:37,313 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:37,313 INFO  L479      AbstractCegarLoop]: Abstraction has 875 states and 1008 transitions.
[2020-09-25 08:39:37,313 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 08:39:37,313 INFO  L276                IsEmpty]: Start isEmpty. Operand 875 states and 1008 transitions.
[2020-09-25 08:39:37,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2020-09-25 08:39:37,320 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:37,320 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:37,320 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 08:39:37,321 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:37,321 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:37,321 INFO  L82        PathProgramCache]: Analyzing trace with hash -1837507107, now seen corresponding path program 1 times
[2020-09-25 08:39:37,321 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:37,322 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884105577]
[2020-09-25 08:39:37,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:37,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:37,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:37,550 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:37,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...