/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_spec3_product64.cil.c


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


This is Ultimate 0.1.25-72570d3
[2020-08-22 21:24:26,581 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-22 21:24:26,583 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 21:24:26,607 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 21:24:26,607 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 21:24:26,609 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 21:24:26,610 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 21:24:26,612 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 21:24:26,617 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 21:24:26,618 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-22 21:24:26,619 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2020-08-22 21:24:26,620 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-22 21:24:26,625 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-22 21:24:26,628 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-22 21:24:26,629 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-22 21:24:26,630 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 21:24:26,631 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 21:24:26,635 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 21:24:26,639 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 21:24:26,643 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 21:24:26,644 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 21:24:26,649 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 21:24:26,650 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 21:24:26,653 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-22 21:24:26,656 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-22 21:24:26,656 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-22 21:24:26,657 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-22 21:24:26,657 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-22 21:24:26,661 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-22 21:24:26,661 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-08-22 21:24:26,662 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-22 21:24:26,664 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
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[2020-08-22 21:24:26,667 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-22 21:24:26,670 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-22 21:24:26,670 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 21:24:26,693 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-22 21:24:26,694 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 21:24:26,695 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 21:24:26,695 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-22 21:24:26,695 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-22 21:24:26,695 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-22 21:24:26,696 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-22 21:24:26,697 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 21:24:26,697 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 21:24:26,697 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 21:24:26,698 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-22 21:24:26,698 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-22 21:24:26,699 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-22 21:24:26,699 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-22 21:24:26,699 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 21:24:26,700 INFO  L138        SettingsManager]:  * Size of a code block=SingleStatement
[2020-08-22 21:24:26,700 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-22 21:24:26,700 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-22 21:24:26,700 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 21:24:26,700 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 21:24:26,700 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-08-22 21:24:26,701 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 21:24:26,701 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 21:24:27,035 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 21:24:27,058 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 21:24:27,062 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 21:24:27,063 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-22 21:24:27,064 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-22 21:24:27,065 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c
[2020-08-22 21:24:27,132 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef6c1cb0/0f1c6e6d36ee477581b15ad7890b6542/FLAG2ffd06bd0
[2020-08-22 21:24:27,670 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-22 21:24:27,670 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c
[2020-08-22 21:24:27,689 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef6c1cb0/0f1c6e6d36ee477581b15ad7890b6542/FLAG2ffd06bd0
[2020-08-22 21:24:27,944 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef6c1cb0/0f1c6e6d36ee477581b15ad7890b6542
[2020-08-22 21:24:27,954 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 21:24:27,956 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 21:24:27,958 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 21:24:27,958 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 21:24:27,963 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 21:24:27,964 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:24:27" (1/1) ...
[2020-08-22 21:24:27,968 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:27, skipping insertion in model container
[2020-08-22 21:24:27,968 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:24:27" (1/1) ...
[2020-08-22 21:24:27,977 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-22 21:24:28,050 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-22 21:24:28,389 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 21:24:28,402 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-22 21:24:28,588 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-22 21:24:28,632 INFO  L208         MainTranslator]: Completed translation
[2020-08-22 21:24:28,632 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28 WrapperNode
[2020-08-22 21:24:28,633 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 21:24:28,633 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 21:24:28,633 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 21:24:28,634 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 21:24:28,644 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,644 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,664 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,665 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,703 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,713 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,719 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (1/1) ...
[2020-08-22 21:24:28,726 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 21:24:28,727 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 21:24:28,727 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 21:24:28,727 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-22 21:24:28,729 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (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 21:24:28,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 21:24:28,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 21:24:28,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-08-22 21:24:28,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-08-22 21:24:28,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-08-22 21:24:28,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-08-22 21:24:28,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-08-22 21:24:28,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-08-22 21:24:28,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-08-22 21:24:28,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-08-22 21:24:28,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-08-22 21:24:28,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-08-22 21:24:28,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-08-22 21:24:28,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-08-22 21:24:28,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-08-22 21:24:28,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-08-22 21:24:28,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-08-22 21:24:28,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-08-22 21:24:28,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-08-22 21:24:28,795 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-08-22 21:24:28,796 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-08-22 21:24:28,797 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-08-22 21:24:28,798 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-08-22 21:24:28,799 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-08-22 21:24:28,800 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-22 21:24:28,801 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-08-22 21:24:28,802 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-08-22 21:24:28,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 21:24:29,925 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 21:24:29,925 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-08-22 21:24:29,932 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:24:29 BoogieIcfgContainer
[2020-08-22 21:24:29,932 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 21:24:29,933 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 21:24:29,933 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 21:24:29,937 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-22 21:24:29,937 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:24:27" (1/3) ...
[2020-08-22 21:24:29,938 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ec2c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:24:29, skipping insertion in model container
[2020-08-22 21:24:29,938 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:24:28" (2/3) ...
[2020-08-22 21:24:29,938 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ec2c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:24:29, skipping insertion in model container
[2020-08-22 21:24:29,939 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:24:29" (3/3) ...
[2020-08-22 21:24:29,940 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c
[2020-08-22 21:24:29,951 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-22 21:24:29,960 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 21:24:29,972 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 21:24:29,990 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-22 21:24:29,991 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-22 21:24:29,991 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-22 21:24:29,991 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 21:24:29,991 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 21:24:29,991 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-22 21:24:29,992 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 21:24:29,992 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 21:24:30,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 362 states.
[2020-08-22 21:24:30,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-08-22 21:24:30,038 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:24:30,039 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:24:30,042 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:24:30,048 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:24:30,048 INFO  L82        PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times
[2020-08-22 21:24:30,057 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:24:30,058 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758564004]
[2020-08-22 21:24:30,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:24:30,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,785 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:24:30,789 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:24:30,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:24:30,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:24:30,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,924 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:24:30,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,930 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:24:30,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,932 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-08-22 21:24:30,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,943 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-08-22 21:24:30,951 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,953 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-08-22 21:24:30,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:30,994 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 21:24:30,995 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758564004]
[2020-08-22 21:24:30,997 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:24:30,998 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-22 21:24:30,999 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600182111]
[2020-08-22 21:24:31,005 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-22 21:24:31,005 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:24:31,020 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-22 21:24:31,020 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 21:24:31,023 INFO  L87              Difference]: Start difference. First operand 362 states. Second operand 3 states.
[2020-08-22 21:24:32,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:24:32,662 INFO  L93              Difference]: Finished difference Result 596 states and 710 transitions.
[2020-08-22 21:24:32,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-22 21:24:32,664 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-08-22 21:24:32,665 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:24:32,683 INFO  L225             Difference]: With dead ends: 596
[2020-08-22 21:24:32,683 INFO  L226             Difference]: Without dead ends: 359
[2020-08-22 21:24:32,689 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-22 21:24:32,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 359 states.
[2020-08-22 21:24:32,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311.
[2020-08-22 21:24:32,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 311 states.
[2020-08-22 21:24:32,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions.
[2020-08-22 21:24:32,868 INFO  L78                 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153
[2020-08-22 21:24:32,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:24:32,870 INFO  L479      AbstractCegarLoop]: Abstraction has 311 states and 343 transitions.
[2020-08-22 21:24:32,870 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-22 21:24:32,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions.
[2020-08-22 21:24:32,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-08-22 21:24:32,875 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:24:32,876 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:24:32,876 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 21:24:32,876 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:24:32,877 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:24:32,877 INFO  L82        PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times
[2020-08-22 21:24:32,877 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:24:32,877 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693679356]
[2020-08-22 21:24:32,878 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:24:32,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,217 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:24:33,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:24:33,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,282 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:24:33,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:24:33,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,286 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:24:33,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:24:33,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-08-22 21:24:33,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-08-22 21:24:33,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-08-22 21:24:33,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:33,316 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 21:24:33,317 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693679356]
[2020-08-22 21:24:33,317 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:24:33,318 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-22 21:24:33,318 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383812052]
[2020-08-22 21:24:33,320 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-22 21:24:33,320 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:24:33,320 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-22 21:24:33,321 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-22 21:24:33,321 INFO  L87              Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states.
[2020-08-22 21:24:33,915 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:24:35,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:24:35,175 INFO  L93              Difference]: Finished difference Result 503 states and 573 transitions.
[2020-08-22 21:24:35,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-22 21:24:35,176 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-08-22 21:24:35,177 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:24:35,181 INFO  L225             Difference]: With dead ends: 503
[2020-08-22 21:24:35,181 INFO  L226             Difference]: Without dead ends: 342
[2020-08-22 21:24:35,183 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-08-22 21:24:35,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 342 states.
[2020-08-22 21:24:35,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301.
[2020-08-22 21:24:35,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 301 states.
[2020-08-22 21:24:35,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions.
[2020-08-22 21:24:35,334 INFO  L78                 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154
[2020-08-22 21:24:35,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:24:35,334 INFO  L479      AbstractCegarLoop]: Abstraction has 301 states and 330 transitions.
[2020-08-22 21:24:35,335 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-22 21:24:35,335 INFO  L276                IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions.
[2020-08-22 21:24:35,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-08-22 21:24:35,338 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:24:35,338 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:24:35,338 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-22 21:24:35,338 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:24:35,339 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:24:35,339 INFO  L82        PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times
[2020-08-22 21:24:35,339 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:24:35,339 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307349550]
[2020-08-22 21:24:35,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:24:35,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,685 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:24:35,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:24:35,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:24:35,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,720 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:24:35,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,721 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:24:35,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,762 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:24:35,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,780 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-08-22 21:24:35,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,799 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-08-22 21:24:35,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,801 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-08-22 21:24:35,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,803 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-08-22 21:24:35,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:35,834 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 21:24:35,835 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307349550]
[2020-08-22 21:24:35,835 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:24:35,835 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-08-22 21:24:35,837 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152147843]
[2020-08-22 21:24:35,842 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-08-22 21:24:35,842 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:24:35,843 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-08-22 21:24:35,843 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-08-22 21:24:35,844 INFO  L87              Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 10 states.
[2020-08-22 21:24:36,344 WARN  L193               SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:24:36,844 WARN  L193               SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-08-22 21:24:37,206 WARN  L193               SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-08-22 21:24:37,556 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:37,913 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:24:38,190 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:39,076 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-22 21:24:42,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:24:42,471 INFO  L93              Difference]: Finished difference Result 857 states and 1002 transitions.
[2020-08-22 21:24:42,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-08-22 21:24:42,471 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 167
[2020-08-22 21:24:42,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:24:42,481 INFO  L225             Difference]: With dead ends: 857
[2020-08-22 21:24:42,481 INFO  L226             Difference]: Without dead ends: 666
[2020-08-22 21:24:42,483 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342
[2020-08-22 21:24:42,484 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 666 states.
[2020-08-22 21:24:42,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 563.
[2020-08-22 21:24:42,675 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 563 states.
[2020-08-22 21:24:42,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 636 transitions.
[2020-08-22 21:24:42,680 INFO  L78                 Accepts]: Start accepts. Automaton has 563 states and 636 transitions. Word has length 167
[2020-08-22 21:24:42,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:24:42,681 INFO  L479      AbstractCegarLoop]: Abstraction has 563 states and 636 transitions.
[2020-08-22 21:24:42,681 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-08-22 21:24:42,681 INFO  L276                IsEmpty]: Start isEmpty. Operand 563 states and 636 transitions.
[2020-08-22 21:24:42,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-08-22 21:24:42,686 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:24:42,686 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 21:24:42,686 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-22 21:24:42,686 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:24:42,687 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:24:42,687 INFO  L82        PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times
[2020-08-22 21:24:42,687 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:24:42,688 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509971001]
[2020-08-22 21:24:42,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:24:42,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,086 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-22 21:24:43,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-22 21:24:43,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-08-22 21:24:43,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-08-22 21:24:43,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-08-22 21:24:43,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,140 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-08-22 21:24:43,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,154 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-08-22 21:24:43,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,158 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-08-22 21:24:43,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,160 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-08-22 21:24:43,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-08-22 21:24:43,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-22 21:24:43,252 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 21:24:43,253 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509971001]
[2020-08-22 21:24:43,253 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-22 21:24:43,254 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-08-22 21:24:43,254 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243406000]
[2020-08-22 21:24:43,255 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-08-22 21:24:43,255 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-22 21:24:43,256 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-08-22 21:24:43,258 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-08-22 21:24:43,258 INFO  L87              Difference]: Start difference. First operand 563 states and 636 transitions. Second operand 9 states.
[2020-08-22 21:24:43,694 WARN  L193               SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:24:45,829 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:46,153 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:24:46,522 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:46,891 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-22 21:24:47,122 WARN  L193               SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-08-22 21:24:47,372 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:47,623 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-22 21:24:49,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-22 21:24:49,024 INFO  L93              Difference]: Finished difference Result 1567 states and 1891 transitions.
[2020-08-22 21:24:49,025 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-08-22 21:24:49,025 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 172
[2020-08-22 21:24:49,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-22 21:24:49,034 INFO  L225             Difference]: With dead ends: 1567
[2020-08-22 21:24:49,034 INFO  L226             Difference]: Without dead ends: 1114
[2020-08-22 21:24:49,037 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-08-22 21:24:49,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1114 states.
[2020-08-22 21:24:49,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1003.
[2020-08-22 21:24:49,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1003 states.
[2020-08-22 21:24:49,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1159 transitions.
[2020-08-22 21:24:49,409 INFO  L78                 Accepts]: Start accepts. Automaton has 1003 states and 1159 transitions. Word has length 172
[2020-08-22 21:24:49,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-22 21:24:49,410 INFO  L479      AbstractCegarLoop]: Abstraction has 1003 states and 1159 transitions.
[2020-08-22 21:24:49,410 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-08-22 21:24:49,410 INFO  L276                IsEmpty]: Start isEmpty. Operand 1003 states and 1159 transitions.
[2020-08-22 21:24:49,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-08-22 21:24:49,416 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-22 21:24:49,416 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]
[2020-08-22 21:24:49,416 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-22 21:24:49,417 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 21:24:49,417 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 21:24:49,417 INFO  L82        PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times
[2020-08-22 21:24:49,417 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 21:24:49,418 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305576780]
[2020-08-22 21:24:49,418 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 21:24:49,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 21:24:49,476 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 21:24:49,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 21:24:49,526 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 21:24:49,691 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-22 21:24:49,691 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-08-22 21:24:49,692 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-22 21:24:49,891 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:24:49 BoogieIcfgContainer
[2020-08-22 21:24:49,892 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 21:24:49,894 INFO  L168              Benchmark]: Toolchain (without parser) took 21937.88 ms. Allocated memory was 139.5 MB in the beginning and 649.6 MB in the end (delta: 510.1 MB). Free memory was 102.6 MB in the beginning and 97.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 515.2 MB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,895 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,895 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 675.38 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 172.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,896 INFO  L168              Benchmark]: Boogie Preprocessor took 93.36 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,897 INFO  L168              Benchmark]: RCFGBuilder took 1205.31 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.2 MB in the beginning and 171.4 MB in the end (delta: -3.1 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,898 INFO  L168              Benchmark]: TraceAbstraction took 19958.39 ms. Allocated memory was 237.5 MB in the beginning and 649.6 MB in the end (delta: 412.1 MB). Free memory was 171.4 MB in the beginning and 97.6 MB in the end (delta: 73.8 MB). Peak memory consumption was 485.9 MB. Max. memory is 7.1 GB.
[2020-08-22 21:24:49,902 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 675.38 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 172.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 93.36 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 168.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1205.31 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.2 MB in the beginning and 171.4 MB in the end (delta: -3.1 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19958.39 ms. Allocated memory was 237.5 MB in the beginning and 649.6 MB in the end (delta: 412.1 MB). Free memory was 171.4 MB in the beginning and 97.6 MB in the end (delta: 73.8 MB). Peak memory consumption was 485.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L90]                int pumpRunning  =    0;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=142, pumpRunning=0, systemActive=133, waterLevel=137]
[L91]                int systemActive  =    1;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=142, pumpRunning=0, systemActive=1, waterLevel=137]
[L427]               int waterLevel  =    1;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=142, pumpRunning=0, systemActive=1, waterLevel=1]
[L428]               int methaneLevelCritical  =    0;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L699]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L896]               int cleanupTimeShifts  =    4;
         VAL         [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L969]               int retValue_acc ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L970]               int tmp ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L974]   FCALL       select_helpers()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L975]   FCALL       select_features()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L976]   CALL, EXPR  valid_product()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L69]                int retValue_acc ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L72]                retValue_acc = 1
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L73]                return (retValue_acc);
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L976]   RET, EXPR   valid_product()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1]
[L976]               tmp = valid_product()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1]
[L978]   COND TRUE   \read(tmp)
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L980]   FCALL       setup()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L981]   CALL        runTest()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L963]   CALL        test()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L358]               int splverifierCounter ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L359]               int tmp ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L360]               int tmp___0 ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L361]               int tmp___1 ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L362]               int tmp___2 ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L365]               splverifierCounter = 0
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L367]   COND TRUE   1
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L369]   COND TRUE   splverifierCounter < 4
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L375]               tmp = __VERIFIER_nondet_int()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1]
[L377]   COND TRUE   \read(tmp)
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1]
[L379]   CALL        waterRise()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L445]   COND TRUE   waterLevel < 2
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L446]               waterLevel = waterLevel + 1
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L379]   RET         waterRise()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2]
[L385]               tmp___0 = __VERIFIER_nondet_int()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2]
[L387]   COND FALSE  !(\read(tmp___0))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2]
[L395]               tmp___2 = __VERIFIER_nondet_int()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2]
[L397]   COND FALSE  !(\read(tmp___2))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2]
[L403]               tmp___1 = __VERIFIER_nondet_int()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2]
[L405]   COND TRUE   \read(tmp___1)
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2]
[L407]   CALL        stopSystem()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L334]   COND FALSE  !(\read(pumpRunning))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L341]               systemActive = 0
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L407]   RET         stopSystem()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2]
[L414]   CALL        timeShift()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L98]    COND FALSE  !(\read(pumpRunning))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L105]   COND FALSE  !(\read(systemActive))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L113]   CALL        __utac_acc__Specification3_spec__1()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1002]              int tmp ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1003]              int tmp___0 ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1004]              int tmp___1 ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1008]  CALL, EXPR  isMethaneLevelCritical()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L466]               int retValue_acc ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L469]               retValue_acc = methaneLevelCritical
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2]
[L470]               return (retValue_acc);
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2]
[L1008]  RET, EXPR   isMethaneLevelCritical()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L1008]              tmp = isMethaneLevelCritical()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2]
[L1010]  COND FALSE  !(\read(tmp))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2]
[L1014]  CALL, EXPR  getWaterLevel()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L498]               int retValue_acc ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L501]               retValue_acc = waterLevel
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2]
[L502]               return (retValue_acc);
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2]
[L1014]  RET, EXPR   getWaterLevel()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2]
[L1014]              tmp___0 = getWaterLevel()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2]
[L1016]  COND TRUE   tmp___0 == 2
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2]
[L1018]  CALL, EXPR  isPumpRunning()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L248]               int retValue_acc ;
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L251]               retValue_acc = pumpRunning
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2]
[L252]               return (retValue_acc);
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2]
[L1018]  RET, EXPR   isPumpRunning()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2]
[L1018]              tmp___1 = isPumpRunning()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2]
[L1020]  COND FALSE  !(\read(tmp___1))
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2]
[L1024]  CALL        __automaton_fail()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L996]               __VERIFIER_error()
         VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1195 SDtfs, 1950 SDslu, 1496 SDs, 0 SdLazy, 3916 SolverSat, 721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1003occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 303 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 250786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...