/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c


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


This is Ultimate 0.1.25-5644d1e-m
[2020-08-18 19:19:43,908 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-18 19:19:43,911 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-18 19:19:43,955 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-18 19:19:43,958 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-18 19:19:43,971 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-18 19:19:43,972 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-18 19:19:43,975 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-18 19:19:43,977 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-18 19:19:43,979 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-18 19:19:43,979 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-08-18 19:19:43,983 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-18 19:19:43,983 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-18 19:19:43,984 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-18 19:19:43,987 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-18 19:19:43,988 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-18 19:19:43,989 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-18 19:19:43,992 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-18 19:19:43,993 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-18 19:19:44,000 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-18 19:19:44,004 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-18 19:19:44,005 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-18 19:19:44,007 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-18 19:19:44,008 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-18 19:19:44,012 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-18 19:19:44,012 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-18 19:19:44,013 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-18 19:19:44,015 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-18 19:19:44,016 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-18 19:19:44,018 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-18 19:19:44,018 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-18 19:19:44,019 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-18 19:19:44,019 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-18 19:19:44,020 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-18 19:19:44,021 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-18 19:19:44,022 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-18 19:19:44,023 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-18 19:19:44,023 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-18 19:19:44,023 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-18 19:19:44,024 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-18 19:19:44,025 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-18 19:19:44,026 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-08-18 19:19:44,072 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-18 19:19:44,072 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-18 19:19:44,074 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-18 19:19:44,075 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-08-18 19:19:44,075 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-08-18 19:19:44,075 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-18 19:19:44,076 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-18 19:19:44,078 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-18 19:19:44,079 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-18 19:19:44,080 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-18 19:19:44,082 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-18 19:19:44,083 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-18 19:19:44,083 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-18 19:19:44,083 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-18 19:19:44,084 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-18 19:19:44,084 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-18 19:19:44,084 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-18 19:19:44,085 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-18 19:19:44,086 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-08-18 19:19:44,086 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-18 19:19:44,086 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-18 19:19:44,086 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-18 19:19:44,087 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-18 19:19:44,087 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-08-18 19:19:44,087 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-18 19:19:44,087 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-08-18 19:19:44,087 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-18 19:19:44,087 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-18 19:19:44,088 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-08-18 19:19:44,088 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER;
[2020-08-18 19:19:44,370 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-18 19:19:44,387 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-18 19:19:44,393 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-18 19:19:44,395 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-18 19:19:44,396 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-18 19:19:44,397 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-08-18 19:19:44,472 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72a81f9aa/25dbed9f4f464675882344f6116834fc/FLAGfe30ca3c1
[2020-08-18 19:19:45,058 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-18 19:19:45,058 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-08-18 19:19:45,082 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72a81f9aa/25dbed9f4f464675882344f6116834fc/FLAGfe30ca3c1
[2020-08-18 19:19:45,327 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72a81f9aa/25dbed9f4f464675882344f6116834fc
[2020-08-18 19:19:45,338 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-18 19:19:45,340 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-18 19:19:45,341 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-18 19:19:45,341 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-18 19:19:45,345 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-18 19:19:45,346 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:45" (1/1) ...
[2020-08-18 19:19:45,349 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f275aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:45, skipping insertion in model container
[2020-08-18 19:19:45,349 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:45" (1/1) ...
[2020-08-18 19:19:45,357 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-18 19:19:45,402 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-18 19:19:45,865 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-18 19:19:45,890 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-18 19:19:45,978 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-18 19:19:46,014 INFO  L208         MainTranslator]: Completed translation
[2020-08-18 19:19:46,014 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46 WrapperNode
[2020-08-18 19:19:46,015 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-18 19:19:46,015 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-18 19:19:46,015 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-18 19:19:46,016 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-18 19:19:46,030 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,030 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,072 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,072 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,115 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,127 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,132 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
[2020-08-18 19:19:46,160 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-18 19:19:46,161 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-18 19:19:46,161 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-18 19:19:46,161 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-18 19:19:46,162 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-18 19:19:46,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-18 19:19:46,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-18 19:19:46,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-08-18 19:19:46,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-08-18 19:19:46,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-08-18 19:19:46,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-08-18 19:19:46,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-08-18 19:19:46,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-08-18 19:19:46,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-08-18 19:19:46,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-08-18 19:19:46,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-08-18 19:19:46,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-08-18 19:19:46,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-08-18 19:19:46,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-08-18 19:19:46,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-08-18 19:19:46,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-18 19:19:46,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-08-18 19:19:46,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-08-18 19:19:46,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-08-18 19:19:46,242 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-08-18 19:19:46,242 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-08-18 19:19:46,242 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-08-18 19:19:46,242 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-08-18 19:19:46,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-08-18 19:19:46,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-08-18 19:19:46,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-08-18 19:19:46,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-08-18 19:19:46,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-08-18 19:19:46,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-18 19:19:46,245 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-18 19:19:46,245 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-08-18 19:19:46,245 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-08-18 19:19:46,245 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-08-18 19:19:46,245 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-08-18 19:19:46,246 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-08-18 19:19:46,247 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-08-18 19:19:46,247 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-08-18 19:19:46,248 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-08-18 19:19:46,249 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-08-18 19:19:46,249 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-08-18 19:19:46,258 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-08-18 19:19:46,259 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-08-18 19:19:46,259 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-08-18 19:19:46,259 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-08-18 19:19:46,259 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-08-18 19:19:46,259 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-08-18 19:19:46,260 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-08-18 19:19:46,261 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-08-18 19:19:46,261 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-08-18 19:19:46,261 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-08-18 19:19:46,261 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-08-18 19:19:46,262 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-08-18 19:19:46,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-08-18 19:19:46,263 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-08-18 19:19:46,263 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-08-18 19:19:46,263 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-08-18 19:19:46,264 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-18 19:19:46,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-08-18 19:19:46,266 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-18 19:19:46,267 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-08-18 19:19:46,267 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-18 19:19:47,285 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-18 19:19:47,285 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-08-18 19:19:47,291 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:47 BoogieIcfgContainer
[2020-08-18 19:19:47,291 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-18 19:19:47,292 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-18 19:19:47,293 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-18 19:19:47,296 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-18 19:19:47,296 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:19:45" (1/3) ...
[2020-08-18 19:19:47,297 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:47, skipping insertion in model container
[2020-08-18 19:19:47,297 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:46" (2/3) ...
[2020-08-18 19:19:47,297 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:47, skipping insertion in model container
[2020-08-18 19:19:47,298 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:47" (3/3) ...
[2020-08-18 19:19:47,299 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c
[2020-08-18 19:19:47,310 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-18 19:19:47,318 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-18 19:19:47,332 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-18 19:19:47,357 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-18 19:19:47,357 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-18 19:19:47,357 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-18 19:19:47,357 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-18 19:19:47,357 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-18 19:19:47,358 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-18 19:19:47,358 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-18 19:19:47,358 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-18 19:19:47,383 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states.
[2020-08-18 19:19:47,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-08-18 19:19:47,395 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-18 19:19:47,396 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]
[2020-08-18 19:19:47,397 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 19:19:47,403 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 19:19:47,404 INFO  L82        PathProgramCache]: Analyzing trace with hash 578570237, now seen corresponding path program 1 times
[2020-08-18 19:19:47,413 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 19:19:47,413 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835296338]
[2020-08-18 19:19:47,414 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 19:19:47,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,077 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 19:19:48,079 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 19:19:48,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 19:19:48,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 19:19:48,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 19:19:48,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 19:19:48,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-08-18 19:19:48,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,144 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-08-18 19:19:48,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,148 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-08-18 19:19:48,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:48,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 19:19:48,168 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835296338]
[2020-08-18 19:19:48,170 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 19:19:48,171 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-18 19:19:48,172 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207952230]
[2020-08-18 19:19:48,177 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-18 19:19:48,178 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 19:19:48,194 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-18 19:19:48,195 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-18 19:19:48,197 INFO  L87              Difference]: Start difference. First operand 172 states. Second operand 3 states.
[2020-08-18 19:19:49,389 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 19:19:49,389 INFO  L93              Difference]: Finished difference Result 300 states and 394 transitions.
[2020-08-18 19:19:49,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-18 19:19:49,392 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 52
[2020-08-18 19:19:49,392 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 19:19:49,412 INFO  L225             Difference]: With dead ends: 300
[2020-08-18 19:19:49,413 INFO  L226             Difference]: Without dead ends: 162
[2020-08-18 19:19:49,420 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
[2020-08-18 19:19:49,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162 states.
[2020-08-18 19:19:49,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 129.
[2020-08-18 19:19:49,556 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 129 states.
[2020-08-18 19:19:49,561 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions.
[2020-08-18 19:19:49,564 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52
[2020-08-18 19:19:49,565 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-18 19:19:49,565 INFO  L479      AbstractCegarLoop]: Abstraction has 129 states and 152 transitions.
[2020-08-18 19:19:49,565 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-18 19:19:49,565 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions.
[2020-08-18 19:19:49,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-08-18 19:19:49,576 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-18 19:19:49,577 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]
[2020-08-18 19:19:49,577 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-18 19:19:49,577 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 19:19:49,577 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 19:19:49,578 INFO  L82        PathProgramCache]: Analyzing trace with hash -1188326363, now seen corresponding path program 1 times
[2020-08-18 19:19:49,578 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 19:19:49,578 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476985592]
[2020-08-18 19:19:49,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 19:19:49,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,002 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 19:19:50,003 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 19:19:50,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,027 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 19:19:50,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,029 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 19:19:50,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,031 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 19:19:50,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,033 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 19:19:50,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,034 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-18 19:19:50,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,036 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2020-08-18 19:19:50,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,038 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2020-08-18 19:19:50,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:50,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 19:19:50,047 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476985592]
[2020-08-18 19:19:50,047 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 19:19:50,047 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-18 19:19:50,048 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491264800]
[2020-08-18 19:19:50,049 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-18 19:19:50,050 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 19:19:50,050 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-18 19:19:50,050 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-18 19:19:50,050 INFO  L87              Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 4 states.
[2020-08-18 19:19:50,433 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-18 19:19:51,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 19:19:51,278 INFO  L93              Difference]: Finished difference Result 229 states and 281 transitions.
[2020-08-18 19:19:51,279 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-18 19:19:51,279 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-08-18 19:19:51,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 19:19:51,282 INFO  L225             Difference]: With dead ends: 229
[2020-08-18 19:19:51,283 INFO  L226             Difference]: Without dead ends: 146
[2020-08-18 19:19:51,284 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
[2020-08-18 19:19:51,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-08-18 19:19:51,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120.
[2020-08-18 19:19:51,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 120 states.
[2020-08-18 19:19:51,345 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions.
[2020-08-18 19:19:51,346 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53
[2020-08-18 19:19:51,346 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-18 19:19:51,346 INFO  L479      AbstractCegarLoop]: Abstraction has 120 states and 140 transitions.
[2020-08-18 19:19:51,346 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-18 19:19:51,347 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions.
[2020-08-18 19:19:51,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-08-18 19:19:51,349 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-18 19:19:51,349 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]
[2020-08-18 19:19:51,349 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-18 19:19:51,349 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 19:19:51,350 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 19:19:51,350 INFO  L82        PathProgramCache]: Analyzing trace with hash 1564710697, now seen corresponding path program 1 times
[2020-08-18 19:19:51,350 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 19:19:51,350 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418502738]
[2020-08-18 19:19:51,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 19:19:51,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,667 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 19:19:51,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 19:19:51,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,747 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 19:19:51,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 19:19:51,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,754 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 19:19:51,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,777 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 19:19:51,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,779 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-08-18 19:19:51,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,782 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-08-18 19:19:51,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,785 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2020-08-18 19:19:51,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:51,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 19:19:51,796 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418502738]
[2020-08-18 19:19:51,796 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 19:19:51,796 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-08-18 19:19:51,797 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721430287]
[2020-08-18 19:19:51,801 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-18 19:19:51,802 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 19:19:51,802 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-18 19:19:51,802 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-08-18 19:19:51,802 INFO  L87              Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 8 states.
[2020-08-18 19:19:52,165 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 19:19:52,516 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:52,763 WARN  L193               SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:52,999 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:54,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 19:19:54,185 INFO  L93              Difference]: Finished difference Result 242 states and 299 transitions.
[2020-08-18 19:19:54,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-08-18 19:19:54,191 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 58
[2020-08-18 19:19:54,192 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 19:19:54,194 INFO  L225             Difference]: With dead ends: 242
[2020-08-18 19:19:54,195 INFO  L226             Difference]: Without dead ends: 146
[2020-08-18 19:19:54,196 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2020-08-18 19:19:54,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-08-18 19:19:54,235 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120.
[2020-08-18 19:19:54,236 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 120 states.
[2020-08-18 19:19:54,237 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions.
[2020-08-18 19:19:54,237 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58
[2020-08-18 19:19:54,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-18 19:19:54,238 INFO  L479      AbstractCegarLoop]: Abstraction has 120 states and 139 transitions.
[2020-08-18 19:19:54,238 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-18 19:19:54,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions.
[2020-08-18 19:19:54,239 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2020-08-18 19:19:54,239 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-18 19:19:54,239 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]
[2020-08-18 19:19:54,240 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-18 19:19:54,240 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 19:19:54,240 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 19:19:54,240 INFO  L82        PathProgramCache]: Analyzing trace with hash -203175812, now seen corresponding path program 1 times
[2020-08-18 19:19:54,240 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 19:19:54,241 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126804512]
[2020-08-18 19:19:54,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 19:19:54,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,571 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 19:19:54,572 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 19:19:54,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,601 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 19:19:54,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,603 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 19:19:54,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,605 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 19:19:54,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 19:19:54,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,621 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-08-18 19:19:54,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,625 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-18 19:19:54,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-08-18 19:19:54,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,628 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2020-08-18 19:19:54,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,630 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2020-08-18 19:19:54,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,640 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2020-08-18 19:19:54,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 19:19:54,650 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 19:19:54,651 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126804512]
[2020-08-18 19:19:54,651 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 19:19:54,651 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-08-18 19:19:54,651 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484014192]
[2020-08-18 19:19:54,652 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-18 19:19:54,652 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 19:19:54,652 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-18 19:19:54,653 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-08-18 19:19:54,653 INFO  L87              Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states.
[2020-08-18 19:19:54,998 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 19:19:56,552 WARN  L193               SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:56,860 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:57,101 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 19:19:57,437 WARN  L193               SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 19:19:57,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 19:19:57,834 INFO  L93              Difference]: Finished difference Result 363 states and 474 transitions.
[2020-08-18 19:19:57,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-08-18 19:19:57,835 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 71
[2020-08-18 19:19:57,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 19:19:57,839 INFO  L225             Difference]: With dead ends: 363
[2020-08-18 19:19:57,840 INFO  L226             Difference]: Without dead ends: 267
[2020-08-18 19:19:57,841 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2020-08-18 19:19:57,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2020-08-18 19:19:57,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216.
[2020-08-18 19:19:57,900 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 216 states.
[2020-08-18 19:19:57,901 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions.
[2020-08-18 19:19:57,902 INFO  L78                 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 71
[2020-08-18 19:19:57,902 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-18 19:19:57,902 INFO  L479      AbstractCegarLoop]: Abstraction has 216 states and 258 transitions.
[2020-08-18 19:19:57,903 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-18 19:19:57,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions.
[2020-08-18 19:19:57,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2020-08-18 19:19:57,905 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-18 19:19:57,905 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]
[2020-08-18 19:19:57,905 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-18 19:19:57,905 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 19:19:57,906 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 19:19:57,906 INFO  L82        PathProgramCache]: Analyzing trace with hash 1511330786, now seen corresponding path program 1 times
[2020-08-18 19:19:57,906 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 19:19:57,906 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212937629]
[2020-08-18 19:19:57,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 19:19:57,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-18 19:19:57,972 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-18 19:19:57,973 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-08-18 19:19:57,977 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-18 19:19:58,001 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:19:58 BoogieIcfgContainer
[2020-08-18 19:19:58,001 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-18 19:19:58,003 INFO  L168              Benchmark]: Toolchain (without parser) took 12663.54 ms. Allocated memory was 141.6 MB in the beginning and 412.1 MB in the end (delta: 270.5 MB). Free memory was 104.1 MB in the beginning and 106.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,004 INFO  L168              Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,005 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 674.02 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 171.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,006 INFO  L168              Benchmark]: Boogie Preprocessor took 144.89 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 167.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,007 INFO  L168              Benchmark]: RCFGBuilder took 1130.75 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.7 MB in the beginning and 192.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,008 INFO  L168              Benchmark]: TraceAbstraction took 10708.70 ms. Allocated memory was 235.4 MB in the beginning and 412.1 MB in the end (delta: 176.7 MB). Free memory was 192.6 MB in the beginning and 106.5 MB in the end (delta: 86.1 MB). Peak memory consumption was 262.8 MB. Max. memory is 7.1 GB.
[2020-08-18 19:19:58,011 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 674.02 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 171.8 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 144.89 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 167.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1130.75 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.7 MB in the beginning and 192.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 10708.70 ms. Allocated memory was 235.4 MB in the beginning and 412.1 MB in the end (delta: 176.7 MB). Free memory was 192.6 MB in the beginning and 106.5 MB in the end (delta: 86.1 MB). Peak memory consumption was 262.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L47]               int waterLevel  =    1;
[L48]               int methaneLevelCritical  =    0;
[L145]              int cleanupTimeShifts  =    4;
[L286]              int pumpRunning  =    0;
[L287]              int systemActive  =    1;
[L709]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L224]              int retValue_acc ;
[L225]              int tmp ;
[L229]  FCALL       select_helpers()
[L230]  FCALL       select_features()
[L231]  CALL, EXPR  valid_product()
[L273]              int retValue_acc ;
[L276]              retValue_acc = 1
[L277]              return (retValue_acc);
[L231]  RET, EXPR   valid_product()
[L231]              tmp = valid_product()
[L233]  COND TRUE   \read(tmp)
[L235]  FCALL       setup()
[L236]  CALL        runTest()
[L215]  CALL        test()
[L474]              int splverifierCounter ;
[L475]              int tmp ;
[L476]              int tmp___0 ;
[L477]              int tmp___1 ;
[L478]              int tmp___2 ;
[L481]              splverifierCounter = 0
[L483]  COND TRUE   1
[L485]  COND TRUE   splverifierCounter < 4
[L491]              tmp = __VERIFIER_nondet_int()
[L493]  COND TRUE   \read(tmp)
[L495]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L495]  RET         waterRise()
[L501]              tmp___0 = __VERIFIER_nondet_int()
[L503]  COND FALSE  !(\read(tmp___0))
[L511]              tmp___2 = __VERIFIER_nondet_int()
[L513]  COND FALSE  !(\read(tmp___2))
[L519]              tmp___1 = __VERIFIER_nondet_int()
[L521]  COND TRUE   \read(tmp___1)
[L528]  CALL        timeShift()
[L294]  COND FALSE  !(\read(pumpRunning))
[L301]  COND TRUE   \read(systemActive)
[L303]  CALL        processEnvironment()
[L349]              int tmp ;
[L352]  COND FALSE  !(\read(pumpRunning))
[L367]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L323]              int tmp ;
[L326]  COND FALSE  !(\read(pumpRunning))
[L341]  FCALL       processEnvironment__wrappee__base()
[L367]  RET         processEnvironment__wrappee__lowWaterSensor()
[L303]  RET         processEnvironment()
[L309]  CALL        __utac_acc__Specification3_spec__1()
[L907]              int tmp ;
[L908]              int tmp___0 ;
[L909]              int tmp___1 ;
[L913]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L913]  RET, EXPR   isMethaneLevelCritical()
[L913]              tmp = isMethaneLevelCritical()
[L915]  COND FALSE  !(\read(tmp))
[L919]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L919]  RET, EXPR   getWaterLevel()
[L919]              tmp___0 = getWaterLevel()
[L921]  COND TRUE   tmp___0 == 2
[L923]  CALL, EXPR  isPumpRunning()
[L401]              int retValue_acc ;
[L404]              retValue_acc = pumpRunning
[L405]              return (retValue_acc);
[L923]  RET, EXPR   isPumpRunning()
[L923]              tmp___1 = isPumpRunning()
[L925]  COND FALSE  !(\read(tmp___1))
[L929]  CALL        __automaton_fail()
[L140]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 454 SDtfs, 663 SDslu, 251 SDs, 0 SdLazy, 1498 SolverSat, 428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 136 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 65062 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...