/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c


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


This is Ultimate 0.1.25-72570d3
[2020-08-22 21:12:03,469 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-22 21:12:03,472 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 21:12:03,516 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 21:12:03,517 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 21:12:03,526 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 21:12:03,530 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 21:12:03,534 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 21:12:03,537 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 21:12:03,540 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-22 21:12:03,541 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-08-22 21:12:03,542 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-22 21:12:03,543 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-22 21:12:03,546 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-22 21:12:03,548 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-22 21:12:03,550 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-22 21:12:03,552 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 21:12:03,554 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 21:12:03,556 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 21:12:03,565 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 21:12:03,567 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 21:12:03,569 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 21:12:03,570 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 21:12:03,571 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 21:12:03,583 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-22 21:12:03,584 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-22 21:12:03,584 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-22 21:12:03,586 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-22 21:12:03,587 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-22 21:12:03,589 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-22 21:12:03,589 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-22 21:12:03,590 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-22 21:12:03,590 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-22 21:12:03,591 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-22 21:12:03,592 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-22 21:12:03,593 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-08-22 21:12:03,595 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-22 21:12:03,597 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-22 21:12:03,598 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-08-22 21:12:03,613 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-22 21:12:03,614 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 21:12:03,616 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 21:12:03,616 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-22 21:12:03,616 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-22 21:12:03,616 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-22 21:12:03,617 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-22 21:12:03,617 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 21:12:03,617 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 21:12:03,617 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 21:12:03,618 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-22 21:12:03,618 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-22 21:12:03,619 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-22 21:12:03,619 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-22 21:12:03,619 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 21:12:03,619 INFO  L138        SettingsManager]:  * Size of a code block=SingleStatement
[2020-08-22 21:12:03,620 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-22 21:12:03,620 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-22 21:12:03,620 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 21:12:03,620 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 21:12:03,620 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-08-22 21:12:03,621 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 21:12:03,621 INFO  L138        SettingsManager]:  * Use separate solver for trace checks=false
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: Use separate solver for trace checks -> true
[2020-08-22 21:12:03,939 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 21:12:03,955 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 21:12:03,959 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 21:12:03,961 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-22 21:12:03,961 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-22 21:12:03,962 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c
[2020-08-22 21:12:04,038 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a86ed734/01f13cd127e64eea8052cda3787f6267/FLAG8c7ecba31
[2020-08-22 21:12:04,568 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-22 21:12:04,569 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c
[2020-08-22 21:12:04,584 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a86ed734/01f13cd127e64eea8052cda3787f6267/FLAG8c7ecba31
[2020-08-22 21:12:04,859 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a86ed734/01f13cd127e64eea8052cda3787f6267
[2020-08-22 21:12:04,868 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 21:12:04,870 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 21:12:04,872 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 21:12:04,872 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 21:12:04,875 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 21:12:04,876 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:04" (1/1) ...
[2020-08-22 21:12:04,879 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77dfb357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:04, skipping insertion in model container
[2020-08-22 21:12:04,880 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:04" (1/1) ...
[2020-08-22 21:12:04,890 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-22 21:12:04,957 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-22 21:12:05,289 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 21:12:05,313 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-22 21:12:05,515 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 21:12:05,552 INFO  L208         MainTranslator]: Completed translation
[2020-08-22 21:12:05,552 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05 WrapperNode
[2020-08-22 21:12:05,552 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 21:12:05,553 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 21:12:05,553 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 21:12:05,553 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 21:12:05,568 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,568 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,591 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,591 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,623 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,634 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,639 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
[2020-08-22 21:12:05,647 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 21:12:05,648 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 21:12:05,648 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 21:12:05,648 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-22 21:12:05,649 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 21:12:05,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 21:12:05,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 21:12:05,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-08-22 21:12:05,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-08-22 21:12:05,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-08-22 21:12:05,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-08-22 21:12:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-08-22 21:12:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-08-22 21:12:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-08-22 21:12:05,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-08-22 21:12:05,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-08-22 21:12:05,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-08-22 21:12:05,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-08-22 21:12:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-08-22 21:12:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-08-22 21:12:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-08-22 21:12:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-08-22 21:12:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-08-22 21:12:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-08-22 21:12:05,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 21:12:05,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-22 21:12:05,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-22 21:12:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-08-22 21:12:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-22 21:12:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-08-22 21:12:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-22 21:12:05,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-08-22 21:12:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-08-22 21:12:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-08-22 21:12:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-08-22 21:12:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-08-22 21:12:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-22 21:12:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-08-22 21:12:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 21:12:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-08-22 21:12:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 21:12:06,872 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 21:12:06,872 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-08-22 21:12:06,878 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:06 BoogieIcfgContainer
[2020-08-22 21:12:06,878 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 21:12:06,879 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 21:12:06,879 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 21:12:06,883 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-22 21:12:06,883 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:12:04" (1/3) ...
[2020-08-22 21:12:06,884 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea0c5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:06, skipping insertion in model container
[2020-08-22 21:12:06,884 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:05" (2/3) ...
[2020-08-22 21:12:06,884 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea0c5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:06, skipping insertion in model container
[2020-08-22 21:12:06,884 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:06" (3/3) ...
[2020-08-22 21:12:06,886 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c
[2020-08-22 21:12:06,897 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-22 21:12:06,905 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 21:12:06,919 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 21:12:06,943 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-22 21:12:06,943 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-22 21:12:06,943 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-22 21:12:06,944 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 21:12:06,944 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 21:12:06,944 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-22 21:12:06,944 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 21:12:06,944 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 21:12:06,963 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states.
[2020-08-22 21:12:06,983 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-08-22 21:12:06,984 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:06,985 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:06,985 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:06,990 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:06,990 INFO  L82        PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times
[2020-08-22 21:12:06,998 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:06,999 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85849058]
[2020-08-22 21:12:06,999 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:07,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,742 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:07,745 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:07,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,868 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:07,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,871 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:07,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,873 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:07,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,875 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:07,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,877 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-08-22 21:12:07,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,879 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-08-22 21:12:07,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:07,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:07,907 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85849058]
[2020-08-22 21:12:07,909 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:07,909 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-22 21:12:07,910 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347481422]
[2020-08-22 21:12:07,916 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-22 21:12:07,917 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:07,931 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-22 21:12:07,932 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 21:12:07,934 INFO  L87              Difference]: Start difference. First operand 284 states. Second operand 3 states.
[2020-08-22 21:12:09,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:09,254 INFO  L93              Difference]: Finished difference Result 419 states and 501 transitions.
[2020-08-22 21:12:09,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-22 21:12:09,257 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-08-22 21:12:09,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:09,287 INFO  L225             Difference]: With dead ends: 419
[2020-08-22 21:12:09,287 INFO  L226             Difference]: Without dead ends: 266
[2020-08-22 21:12:09,297 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 21:12:09,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2020-08-22 21:12:09,498 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227.
[2020-08-22 21:12:09,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 227 states.
[2020-08-22 21:12:09,504 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions.
[2020-08-22 21:12:09,507 INFO  L78                 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 142
[2020-08-22 21:12:09,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:09,509 INFO  L479      AbstractCegarLoop]: Abstraction has 227 states and 245 transitions.
[2020-08-22 21:12:09,509 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-22 21:12:09,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions.
[2020-08-22 21:12:09,521 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-08-22 21:12:09,521 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:09,522 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:09,522 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 21:12:09,523 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:09,523 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:09,523 INFO  L82        PathProgramCache]: Analyzing trace with hash -853880488, now seen corresponding path program 1 times
[2020-08-22 21:12:09,524 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:09,524 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120694859]
[2020-08-22 21:12:09,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:09,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,925 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:09,926 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:09,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,963 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:09,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,965 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:09,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,966 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:09,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,968 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:09,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-08-22 21:12:09,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,971 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-08-22 21:12:09,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:09,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:09,996 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120694859]
[2020-08-22 21:12:09,996 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:09,996 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-22 21:12:09,996 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292672754]
[2020-08-22 21:12:09,998 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-22 21:12:09,999 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:09,999 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-22 21:12:09,999 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-22 21:12:10,000 INFO  L87              Difference]: Start difference. First operand 227 states and 245 transitions. Second operand 4 states.
[2020-08-22 21:12:10,594 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:11,338 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:11,338 INFO  L93              Difference]: Finished difference Result 336 states and 376 transitions.
[2020-08-22 21:12:11,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-22 21:12:11,339 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-08-22 21:12:11,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:11,343 INFO  L225             Difference]: With dead ends: 336
[2020-08-22 21:12:11,344 INFO  L226             Difference]: Without dead ends: 249
[2020-08-22 21:12:11,345 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-08-22 21:12:11,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2020-08-22 21:12:11,443 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217.
[2020-08-22 21:12:11,443 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 217 states.
[2020-08-22 21:12:11,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 232 transitions.
[2020-08-22 21:12:11,445 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 232 transitions. Word has length 143
[2020-08-22 21:12:11,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:11,446 INFO  L479      AbstractCegarLoop]: Abstraction has 217 states and 232 transitions.
[2020-08-22 21:12:11,446 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-22 21:12:11,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 232 transitions.
[2020-08-22 21:12:11,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2020-08-22 21:12:11,448 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:11,449 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]
[2020-08-22 21:12:11,449 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-22 21:12:11,449 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:11,449 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:11,450 INFO  L82        PathProgramCache]: Analyzing trace with hash -2102825874, now seen corresponding path program 1 times
[2020-08-22 21:12:11,450 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:11,450 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638692724]
[2020-08-22 21:12:11,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:11,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,824 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:11,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:11,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,889 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:11,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,891 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:11,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:11,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,952 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:11,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,954 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-08-22 21:12:11,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,957 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-08-22 21:12:11,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:11,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:11,987 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638692724]
[2020-08-22 21:12:11,987 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:11,988 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-08-22 21:12:11,988 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440677711]
[2020-08-22 21:12:11,989 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-08-22 21:12:11,990 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:11,990 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-08-22 21:12:11,990 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-08-22 21:12:11,991 INFO  L87              Difference]: Start difference. First operand 217 states and 232 transitions. Second operand 9 states.
[2020-08-22 21:12:12,462 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:12,803 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:12:13,055 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-08-22 21:12:13,323 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:13,586 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:12:13,825 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:15,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:15,018 INFO  L93              Difference]: Finished difference Result 356 states and 401 transitions.
[2020-08-22 21:12:15,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-08-22 21:12:15,018 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 152
[2020-08-22 21:12:15,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:15,024 INFO  L225             Difference]: With dead ends: 356
[2020-08-22 21:12:15,024 INFO  L226             Difference]: Without dead ends: 249
[2020-08-22 21:12:15,026 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-08-22 21:12:15,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2020-08-22 21:12:15,087 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 217.
[2020-08-22 21:12:15,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 217 states.
[2020-08-22 21:12:15,089 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 231 transitions.
[2020-08-22 21:12:15,089 INFO  L78                 Accepts]: Start accepts. Automaton has 217 states and 231 transitions. Word has length 152
[2020-08-22 21:12:15,090 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:15,090 INFO  L479      AbstractCegarLoop]: Abstraction has 217 states and 231 transitions.
[2020-08-22 21:12:15,090 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-08-22 21:12:15,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 217 states and 231 transitions.
[2020-08-22 21:12:15,092 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-08-22 21:12:15,092 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:15,092 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]
[2020-08-22 21:12:15,093 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-22 21:12:15,093 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:15,093 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:15,093 INFO  L82        PathProgramCache]: Analyzing trace with hash -1355593621, now seen corresponding path program 1 times
[2020-08-22 21:12:15,094 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:15,094 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965911837]
[2020-08-22 21:12:15,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:15,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,352 WARN  L193               SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:15,353 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:15,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,397 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:15,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,399 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:15,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,401 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:15,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,403 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:15,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,419 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-22 21:12:15,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,429 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:15,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,431 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-08-22 21:12:15,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,433 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-08-22 21:12:15,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:15,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:15,470 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965911837]
[2020-08-22 21:12:15,470 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:15,470 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-08-22 21:12:15,471 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713971064]
[2020-08-22 21:12:15,471 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-08-22 21:12:15,472 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:15,472 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-08-22 21:12:15,472 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-08-22 21:12:15,473 INFO  L87              Difference]: Start difference. First operand 217 states and 231 transitions. Second operand 6 states.
[2020-08-22 21:12:15,953 WARN  L193               SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:17,217 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:17,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:17,647 INFO  L93              Difference]: Finished difference Result 478 states and 544 transitions.
[2020-08-22 21:12:17,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-08-22 21:12:17,648 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 160
[2020-08-22 21:12:17,649 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:17,652 INFO  L225             Difference]: With dead ends: 478
[2020-08-22 21:12:17,652 INFO  L226             Difference]: Without dead ends: 371
[2020-08-22 21:12:17,653 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2020-08-22 21:12:17,654 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2020-08-22 21:12:17,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 312.
[2020-08-22 21:12:17,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 312 states.
[2020-08-22 21:12:17,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 336 transitions.
[2020-08-22 21:12:17,747 INFO  L78                 Accepts]: Start accepts. Automaton has 312 states and 336 transitions. Word has length 160
[2020-08-22 21:12:17,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:17,748 INFO  L479      AbstractCegarLoop]: Abstraction has 312 states and 336 transitions.
[2020-08-22 21:12:17,748 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-08-22 21:12:17,748 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states and 336 transitions.
[2020-08-22 21:12:17,750 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2020-08-22 21:12:17,751 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:17,751 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:17,751 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-22 21:12:17,751 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:17,752 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:17,752 INFO  L82        PathProgramCache]: Analyzing trace with hash 2011013837, now seen corresponding path program 1 times
[2020-08-22 21:12:17,752 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:17,752 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934654668]
[2020-08-22 21:12:17,752 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:17,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,074 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:18,075 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:18,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,115 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:18,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,117 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:18,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,119 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:18,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:18,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,183 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-22 21:12:18,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,190 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:18,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,234 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-08-22 21:12:18,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-08-22 21:12:18,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162
[2020-08-22 21:12:18,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172
[2020-08-22 21:12:18,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:18,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:18,367 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934654668]
[2020-08-22 21:12:18,368 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:18,368 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-08-22 21:12:18,369 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157305136]
[2020-08-22 21:12:18,372 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-08-22 21:12:18,373 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:18,373 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-08-22 21:12:18,375 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132
[2020-08-22 21:12:18,376 INFO  L87              Difference]: Start difference. First operand 312 states and 336 transitions. Second operand 12 states.
[2020-08-22 21:12:19,039 WARN  L193               SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:19,264 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-08-22 21:12:19,501 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:19,737 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:12:19,989 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:20,751 WARN  L193               SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:20,975 WARN  L193               SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:12:21,213 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:21,500 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:12:21,736 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:22,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:22,632 INFO  L93              Difference]: Finished difference Result 578 states and 658 transitions.
[2020-08-22 21:12:22,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-08-22 21:12:22,633 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 184
[2020-08-22 21:12:22,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:22,636 INFO  L225             Difference]: With dead ends: 578
[2020-08-22 21:12:22,636 INFO  L226             Difference]: Without dead ends: 376
[2020-08-22 21:12:22,637 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462
[2020-08-22 21:12:22,638 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 376 states.
[2020-08-22 21:12:22,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 318.
[2020-08-22 21:12:22,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 318 states.
[2020-08-22 21:12:22,720 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 342 transitions.
[2020-08-22 21:12:22,720 INFO  L78                 Accepts]: Start accepts. Automaton has 318 states and 342 transitions. Word has length 184
[2020-08-22 21:12:22,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:22,721 INFO  L479      AbstractCegarLoop]: Abstraction has 318 states and 342 transitions.
[2020-08-22 21:12:22,721 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-08-22 21:12:22,721 INFO  L276                IsEmpty]: Start isEmpty. Operand 318 states and 342 transitions.
[2020-08-22 21:12:22,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2020-08-22 21:12:22,724 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:22,724 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:22,724 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-22 21:12:22,725 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:22,725 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:22,725 INFO  L82        PathProgramCache]: Analyzing trace with hash 394324589, now seen corresponding path program 1 times
[2020-08-22 21:12:22,725 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:22,726 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712980958]
[2020-08-22 21:12:22,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:22,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,133 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:23,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:23,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,196 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:23,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:23,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,200 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:23,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,203 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:23,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-08-22 21:12:23,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:23,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-08-22 21:12:23,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,224 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-08-22 21:12:23,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162
[2020-08-22 21:12:23,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,247 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172
[2020-08-22 21:12:23,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:23,293 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:23,293 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712980958]
[2020-08-22 21:12:23,293 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:23,294 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-08-22 21:12:23,294 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166499047]
[2020-08-22 21:12:23,294 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-08-22 21:12:23,295 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:23,295 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-08-22 21:12:23,295 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-08-22 21:12:23,295 INFO  L87              Difference]: Start difference. First operand 318 states and 342 transitions. Second operand 9 states.
[2020-08-22 21:12:23,800 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:25,137 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:25,377 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:12:25,627 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:25,842 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:26,068 WARN  L193               SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:12:26,297 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:26,509 WARN  L193               SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:26,829 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:27,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:27,544 INFO  L93              Difference]: Finished difference Result 788 states and 910 transitions.
[2020-08-22 21:12:27,545 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-08-22 21:12:27,546 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 184
[2020-08-22 21:12:27,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:27,551 INFO  L225             Difference]: With dead ends: 788
[2020-08-22 21:12:27,551 INFO  L226             Difference]: Without dead ends: 580
[2020-08-22 21:12:27,554 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-08-22 21:12:27,555 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 580 states.
[2020-08-22 21:12:27,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 489.
[2020-08-22 21:12:27,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 489 states.
[2020-08-22 21:12:27,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 532 transitions.
[2020-08-22 21:12:27,712 INFO  L78                 Accepts]: Start accepts. Automaton has 489 states and 532 transitions. Word has length 184
[2020-08-22 21:12:27,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:27,713 INFO  L479      AbstractCegarLoop]: Abstraction has 489 states and 532 transitions.
[2020-08-22 21:12:27,713 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-08-22 21:12:27,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 489 states and 532 transitions.
[2020-08-22 21:12:27,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2020-08-22 21:12:27,716 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:27,716 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:27,716 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-08-22 21:12:27,716 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:27,717 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:27,717 INFO  L82        PathProgramCache]: Analyzing trace with hash 682865486, now seen corresponding path program 1 times
[2020-08-22 21:12:27,717 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:27,717 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158849187]
[2020-08-22 21:12:27,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:27,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,006 WARN  L193               SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:28,007 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:28,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,062 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:28,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,064 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:28,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:28,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,068 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:28,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-08-22 21:12:28,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,096 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-08-22 21:12:28,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:28,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,105 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-08-22 21:12:28,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,130 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-08-22 21:12:28,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167
[2020-08-22 21:12:28,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177
[2020-08-22 21:12:28,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:28,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:28,222 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158849187]
[2020-08-22 21:12:28,222 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:28,222 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-08-22 21:12:28,222 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885012423]
[2020-08-22 21:12:28,223 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-22 21:12:28,224 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:28,224 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-22 21:12:28,224 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-08-22 21:12:28,224 INFO  L87              Difference]: Start difference. First operand 489 states and 532 transitions. Second operand 10 states.
[2020-08-22 21:12:28,671 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:29,905 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:30,126 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:30,358 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:12:30,573 WARN  L193               SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:30,809 WARN  L193               SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:31,060 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:12:31,292 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:31,545 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:32,243 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:32,243 INFO  L93              Difference]: Finished difference Result 646 states and 750 transitions.
[2020-08-22 21:12:32,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-08-22 21:12:32,249 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 189
[2020-08-22 21:12:32,250 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:32,253 INFO  L225             Difference]: With dead ends: 646
[2020-08-22 21:12:32,254 INFO  L226             Difference]: Without dead ends: 643
[2020-08-22 21:12:32,254 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2020-08-22 21:12:32,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 643 states.
[2020-08-22 21:12:32,405 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 489.
[2020-08-22 21:12:32,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 489 states.
[2020-08-22 21:12:32,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 531 transitions.
[2020-08-22 21:12:32,407 INFO  L78                 Accepts]: Start accepts. Automaton has 489 states and 531 transitions. Word has length 189
[2020-08-22 21:12:32,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:32,408 INFO  L479      AbstractCegarLoop]: Abstraction has 489 states and 531 transitions.
[2020-08-22 21:12:32,408 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-08-22 21:12:32,408 INFO  L276                IsEmpty]: Start isEmpty. Operand 489 states and 531 transitions.
[2020-08-22 21:12:32,411 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-08-22 21:12:32,411 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:32,411 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:32,412 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-08-22 21:12:32,412 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:32,412 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:32,412 INFO  L82        PathProgramCache]: Analyzing trace with hash 888496141, now seen corresponding path program 1 times
[2020-08-22 21:12:32,412 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:32,413 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227550289]
[2020-08-22 21:12:32,413 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:32,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,657 WARN  L193               SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:32,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:32,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,694 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:32,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,697 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:32,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,699 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:32,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,701 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:32,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,708 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-08-22 21:12:32,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-08-22 21:12:32,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,752 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:32,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,808 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-08-22 21:12:32,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-08-22 21:12:32,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,813 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-08-22 21:12:32,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178
[2020-08-22 21:12:32,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:32,853 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:32,854 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227550289]
[2020-08-22 21:12:32,854 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:32,854 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-08-22 21:12:32,855 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420992712]
[2020-08-22 21:12:32,855 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-22 21:12:32,855 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:32,856 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-22 21:12:32,856 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-08-22 21:12:32,856 INFO  L87              Difference]: Start difference. First operand 489 states and 531 transitions. Second operand 10 states.
[2020-08-22 21:12:33,890 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:12:34,125 WARN  L193               SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-08-22 21:12:34,365 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-08-22 21:12:34,590 WARN  L193               SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:34,822 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:12:35,034 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:12:35,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:35,902 INFO  L93              Difference]: Finished difference Result 1032 states and 1191 transitions.
[2020-08-22 21:12:35,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-08-22 21:12:35,903 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 190
[2020-08-22 21:12:35,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:35,907 INFO  L225             Difference]: With dead ends: 1032
[2020-08-22 21:12:35,907 INFO  L226             Difference]: Without dead ends: 653
[2020-08-22 21:12:35,909 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2020-08-22 21:12:35,910 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 653 states.
[2020-08-22 21:12:36,097 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 505.
[2020-08-22 21:12:36,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 505 states.
[2020-08-22 21:12:36,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 547 transitions.
[2020-08-22 21:12:36,102 INFO  L78                 Accepts]: Start accepts. Automaton has 505 states and 547 transitions. Word has length 190
[2020-08-22 21:12:36,102 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:36,103 INFO  L479      AbstractCegarLoop]: Abstraction has 505 states and 547 transitions.
[2020-08-22 21:12:36,103 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-08-22 21:12:36,103 INFO  L276                IsEmpty]: Start isEmpty. Operand 505 states and 547 transitions.
[2020-08-22 21:12:36,106 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-08-22 21:12:36,106 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:36,106 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:36,106 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-08-22 21:12:36,106 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:36,107 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:36,107 INFO  L82        PathProgramCache]: Analyzing trace with hash -325395952, now seen corresponding path program 1 times
[2020-08-22 21:12:36,107 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:36,107 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923045455]
[2020-08-22 21:12:36,107 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:36,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,349 WARN  L193               SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:12:36,350 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:12:36,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:12:36,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:12:36,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,415 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:12:36,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:12:36,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,433 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-08-22 21:12:36,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,443 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-08-22 21:12:36,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,458 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-22 21:12:36,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,469 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-08-22 21:12:36,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,478 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-08-22 21:12:36,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-08-22 21:12:36,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178
[2020-08-22 21:12:36,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:12:36,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-22 21:12:36,527 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923045455]
[2020-08-22 21:12:36,527 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:12:36,527 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-08-22 21:12:36,528 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52689071]
[2020-08-22 21:12:36,528 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-08-22 21:12:36,528 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:12:36,529 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-08-22 21:12:36,529 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-08-22 21:12:36,529 INFO  L87              Difference]: Start difference. First operand 505 states and 547 transitions. Second operand 7 states.
[2020-08-22 21:12:37,013 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:37,604 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:12:39,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:12:39,564 INFO  L93              Difference]: Finished difference Result 1471 states and 1751 transitions.
[2020-08-22 21:12:39,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-08-22 21:12:39,565 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 190
[2020-08-22 21:12:39,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:12:39,573 INFO  L225             Difference]: With dead ends: 1471
[2020-08-22 21:12:39,573 INFO  L226             Difference]: Without dead ends: 1076
[2020-08-22 21:12:39,576 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-08-22 21:12:39,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1076 states.
[2020-08-22 21:12:39,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 903.
[2020-08-22 21:12:39,954 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 903 states.
[2020-08-22 21:12:39,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1011 transitions.
[2020-08-22 21:12:39,959 INFO  L78                 Accepts]: Start accepts. Automaton has 903 states and 1011 transitions. Word has length 190
[2020-08-22 21:12:39,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:12:39,960 INFO  L479      AbstractCegarLoop]: Abstraction has 903 states and 1011 transitions.
[2020-08-22 21:12:39,960 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-08-22 21:12:39,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 903 states and 1011 transitions.
[2020-08-22 21:12:39,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2020-08-22 21:12:39,963 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:12:39,963 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:12:39,963 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-08-22 21:12:39,963 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:12:39,964 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:12:39,964 INFO  L82        PathProgramCache]: Analyzing trace with hash -527704718, now seen corresponding path program 1 times
[2020-08-22 21:12:39,964 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:12:39,964 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924042813]
[2020-08-22 21:12:39,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:12:40,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 21:12:40,013 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 21:12:40,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 21:12:40,060 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 21:12:40,265 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-22 21:12:40,265 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-08-22 21:12:40,266 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-08-22 21:12:40,571 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:12:40 BoogieIcfgContainer
[2020-08-22 21:12:40,571 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 21:12:40,573 INFO  L168              Benchmark]: Toolchain (without parser) took 35703.27 ms. Allocated memory was 147.8 MB in the beginning and 720.9 MB in the end (delta: 573.0 MB). Free memory was 104.4 MB in the beginning and 173.2 MB in the end (delta: -68.7 MB). Peak memory consumption was 504.3 MB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,580 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,582 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 681.13 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 104.2 MB in the beginning and 176.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,583 INFO  L168              Benchmark]: Boogie Preprocessor took 94.52 ms. Allocated memory is still 206.0 MB. Free memory was 176.2 MB in the beginning and 172.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,589 INFO  L168              Benchmark]: RCFGBuilder took 1230.34 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 172.1 MB in the beginning and 177.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,589 INFO  L168              Benchmark]: TraceAbstraction took 33691.97 ms. Allocated memory was 235.4 MB in the beginning and 720.9 MB in the end (delta: 485.5 MB). Free memory was 177.0 MB in the beginning and 173.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 489.3 MB. Max. memory is 7.1 GB.
[2020-08-22 21:12:40,597 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 681.13 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 104.2 MB in the beginning and 176.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 94.52 ms. Allocated memory is still 206.0 MB. Free memory was 176.2 MB in the beginning and 172.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1230.34 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 172.1 MB in the beginning and 177.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 33691.97 ms. Allocated memory was 235.4 MB in the beginning and 720.9 MB in the end (delta: 485.5 MB). Free memory was 177.0 MB in the beginning and 173.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 489.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=146, pumpRunning=137, systemActive=136, waterLevel=139]
[L424]              int pumpRunning  =    0;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=136, waterLevel=139]
[L425]              int systemActive  =    1;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=139]
[L683]              int cleanupTimeShifts  =    4;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=139]
[L806]              int waterLevel  =    1;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1]
[L807]              int methaneLevelCritical  =    0;
        VAL         [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L756]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L757]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L761]  FCALL       select_helpers()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L762]  FCALL       select_features()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L763]  CALL, EXPR  valid_product()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L674]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L677]              retValue_acc = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L678]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L763]  RET, EXPR   valid_product()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1]
[L763]              tmp = valid_product()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1]
[L765]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L767]  FCALL       setup()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L768]  CALL        runTest()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L750]  CALL        test()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L581]              int splverifierCounter ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L582]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L583]              int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L584]              int tmp___1 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L585]              int tmp___2 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L588]              splverifierCounter = 0
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L590]  COND TRUE   1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L592]  COND TRUE   splverifierCounter < 4
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L598]              tmp = __VERIFIER_nondet_int()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1]
[L600]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1]
[L602]  CALL        waterRise()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L824]  COND TRUE   waterLevel < 2
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L825]              waterLevel = waterLevel + 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L602]  RET         waterRise()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2]
[L608]              tmp___0 = __VERIFIER_nondet_int()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2]
[L610]  COND TRUE   \read(tmp___0)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2]
[L612]  CALL        changeMethaneLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L836]  COND FALSE  !(\read(methaneLevelCritical))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L839]              methaneLevelCritical = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L612]  RET         changeMethaneLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2]
[L618]              tmp___2 = __VERIFIER_nondet_int()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2]
[L620]  COND TRUE   \read(tmp___2)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2]
[L633]  CALL        timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L432]  COND FALSE  !(\read(pumpRunning))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L439]  COND TRUE   \read(systemActive)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L441]  CALL        processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L461]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L464]  COND TRUE   ! pumpRunning
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L466]  CALL, EXPR  isHighWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L558]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L559]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L560]              int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L564]  CALL, EXPR  isHighWaterSensorDry()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L886]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L889]  COND FALSE  !(waterLevel < 2)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L893]              retValue_acc = 0
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2]
[L894]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2]
[L564]  RET, EXPR   isHighWaterSensorDry()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L564]              tmp = isHighWaterSensorDry()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2]
[L566]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2]
[L569]              tmp___0 = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2]
[L571]              retValue_acc = tmp___0
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2]
[L572]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2]
[L466]  RET, EXPR   isHighWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L466]              tmp = isHighWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2]
[L468]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2]
[L470]  CALL        activatePump()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L489]              pumpRunning = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L470]  RET         activatePump()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2]
[L441]  RET         processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L447]  CALL        __utac_acc__Specification1_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L780]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L781]              int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L785]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L845]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L848]              retValue_acc = methaneLevelCritical
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2]
[L849]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2]
[L785]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L785]              tmp = isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2]
[L787]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2]
[L789]  CALL, EXPR  isPumpRunning()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L513]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L516]              retValue_acc = pumpRunning
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2]
[L517]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2]
[L789]  RET, EXPR   isPumpRunning()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2]
[L789]              tmp___0 = isPumpRunning()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2]
[L791]  COND TRUE   \read(tmp___0)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2]
[L793]  CALL        __automaton_fail()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L410]              __VERIFIER_error()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1936 SDtfs, 3181 SDslu, 3633 SDs, 0 SdLazy, 6447 SolverSat, 877 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 211 SyntacticMatches, 3 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=903occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 786 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1525 ConstructedInterpolants, 0 QuantifiedInterpolants, 659139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...