/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 16:24:22,200 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 16:24:22,202 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 16:24:22,214 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 16:24:22,215 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 16:24:22,216 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 16:24:22,217 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 16:24:22,219 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 16:24:22,221 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 16:24:22,222 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 16:24:22,223 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 16:24:22,224 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 16:24:22,224 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 16:24:22,225 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 16:24:22,226 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 16:24:22,228 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 16:24:22,228 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 16:24:22,229 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 16:24:22,231 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 16:24:22,233 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 16:24:22,235 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 16:24:22,236 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 16:24:22,237 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 16:24:22,238 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 16:24:22,243 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 16:24:22,244 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 16:24:22,244 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 16:24:22,245 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 16:24:22,245 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 16:24:22,247 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 16:24:22,247 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 16:24:22,248 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 16:24:22,249 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 16:24:22,251 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 16:24:22,252 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 16:24:22,252 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 16:24:22,257 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 16:24:22,257 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 16:24:22,257 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 16:24:22,258 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 16:24:22,259 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 16:24:22,260 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 16:24:22,287 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 16:24:22,287 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 16:24:22,289 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 16:24:22,289 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 16:24:22,289 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 16:24:22,290 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 16:24:22,290 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 16:24:22,290 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 16:24:22,290 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 16:24:22,290 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 16:24:22,291 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 16:24:22,292 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 16:24:22,292 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 16:24:22,292 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 16:24:22,292 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 16:24:22,293 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 16:24:22,293 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 16:24:22,293 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 16:24:22,293 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 16:24:22,294 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 16:24:22,294 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 16:24:22,294 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 16:24:22,294 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 16:24:22,295 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 16:24:22,295 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 16:24:22,295 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 16:24:22,295 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:22,295 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 16:24:22,296 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 16:24:22,296 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 -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 16:24:22,572 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 16:24:22,586 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 16:24:22,590 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 16:24:22,591 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 16:24:22,592 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 16:24:22,592 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c
[2020-07-20 16:24:22,666 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07af86e02/64cff1da60ac4c16915937c1a34fb0c0/FLAGb3972eb35
[2020-07-20 16:24:23,150 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 16:24:23,151 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c
[2020-07-20 16:24:23,164 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07af86e02/64cff1da60ac4c16915937c1a34fb0c0/FLAGb3972eb35
[2020-07-20 16:24:23,470 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07af86e02/64cff1da60ac4c16915937c1a34fb0c0
[2020-07-20 16:24:23,479 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 16:24:23,482 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 16:24:23,483 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 16:24:23,484 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 16:24:23,487 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 16:24:23,488 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:23" (1/1) ...
[2020-07-20 16:24:23,491 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e50e1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:23, skipping insertion in model container
[2020-07-20 16:24:23,491 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:23" (1/1) ...
[2020-07-20 16:24:23,499 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 16:24:23,544 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 16:24:23,912 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 16:24:23,941 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 16:24:24,145 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 16:24:24,186 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 16:24:24,187 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24 WrapperNode
[2020-07-20 16:24:24,188 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 16:24:24,188 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 16:24:24,188 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 16:24:24,189 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 16:24:24,203 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,205 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,247 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,247 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,302 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,312 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,317 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ...
[2020-07-20 16:24:24,335 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 16:24:24,335 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 16:24:24,336 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 16:24:24,336 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 16:24:24,342 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (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
[2020-07-20 16:24:24,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 16:24:24,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 16:24:24,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-07-20 16:24:24,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-07-20 16:24:24,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-07-20 16:24:24,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-07-20 16:24:24,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-07-20 16:24:24,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-07-20 16:24:24,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-07-20 16:24:24,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-07-20 16:24:24,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-07-20 16:24:24,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-07-20 16:24:24,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-07-20 16:24:24,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-07-20 16:24:24,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-07-20 16:24:24,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-07-20 16:24:24,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-07-20 16:24:24,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-07-20 16:24:24,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-07-20 16:24:24,431 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-07-20 16:24:24,432 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-07-20 16:24:24,432 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-07-20 16:24:24,432 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-07-20 16:24:24,432 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-07-20 16:24:24,433 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-07-20 16:24:24,433 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-07-20 16:24:24,433 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-07-20 16:24:24,433 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-07-20 16:24:24,433 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 16:24:24,434 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-07-20 16:24:24,434 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-07-20 16:24:24,434 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-07-20 16:24:24,434 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-07-20 16:24:24,434 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-07-20 16:24:24,434 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-07-20 16:24:24,435 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-07-20 16:24:24,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 16:24:24,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-07-20 16:24:24,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-07-20 16:24:24,438 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 16:24:24,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-07-20 16:24:24,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-07-20 16:24:24,439 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-20 16:24:24,439 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-07-20 16:24:24,439 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-07-20 16:24:24,439 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-07-20 16:24:24,440 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-07-20 16:24:24,441 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-07-20 16:24:24,441 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-07-20 16:24:24,441 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-07-20 16:24:24,441 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-07-20 16:24:24,442 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-07-20 16:24:24,442 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-07-20 16:24:24,442 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-07-20 16:24:24,443 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-07-20 16:24:24,443 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-07-20 16:24:24,443 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-07-20 16:24:24,444 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-07-20 16:24:24,444 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-07-20 16:24:24,444 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-07-20 16:24:24,445 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 16:24:24,446 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-07-20 16:24:24,446 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 16:24:24,446 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-07-20 16:24:24,446 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 16:24:25,671 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 16:24:25,671 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-07-20 16:24:25,679 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:25 BoogieIcfgContainer
[2020-07-20 16:24:25,679 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 16:24:25,682 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 16:24:25,682 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 16:24:25,685 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 16:24:25,685 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:24:23" (1/3) ...
[2020-07-20 16:24:25,686 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4556ae97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:25, skipping insertion in model container
[2020-07-20 16:24:25,686 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (2/3) ...
[2020-07-20 16:24:25,687 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4556ae97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:25, skipping insertion in model container
[2020-07-20 16:24:25,687 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:25" (3/3) ...
[2020-07-20 16:24:25,689 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c
[2020-07-20 16:24:25,699 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 16:24:25,709 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 16:24:25,724 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 16:24:25,750 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 16:24:25,750 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 16:24:25,750 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 16:24:25,751 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 16:24:25,751 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 16:24:25,751 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 16:24:25,751 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 16:24:25,751 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 16:24:25,772 INFO  L276                IsEmpty]: Start isEmpty. Operand 170 states.
[2020-07-20 16:24:25,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-07-20 16:24:25,783 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 16:24:25,784 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]
[2020-07-20 16:24:25,784 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:24:25,789 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:24:25,790 INFO  L82        PathProgramCache]: Analyzing trace with hash -16432852, now seen corresponding path program 1 times
[2020-07-20 16:24:25,798 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:24:25,798 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106818605]
[2020-07-20 16:24:25,799 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:26,232 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 16:24:26,233 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:24:26,243 INFO  L263         TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-20 16:24:26,253 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:24:26,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 16:24:26,289 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:24:26,290 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106818605]
[2020-07-20 16:24:26,292 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:24:26,292 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-20 16:24:26,293 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063889074]
[2020-07-20 16:24:26,300 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-20 16:24:26,300 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:24:26,318 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-20 16:24:26,319 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 16:24:26,322 INFO  L87              Difference]: Start difference. First operand 170 states. Second operand 2 states.
[2020-07-20 16:24:26,370 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:24:26,370 INFO  L93              Difference]: Finished difference Result 248 states and 305 transitions.
[2020-07-20 16:24:26,370 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-07-20 16:24:26,372 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 52
[2020-07-20 16:24:26,372 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:24:26,385 INFO  L225             Difference]: With dead ends: 248
[2020-07-20 16:24:26,386 INFO  L226             Difference]: Without dead ends: 124
[2020-07-20 16:24:26,390 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 16:24:26,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2020-07-20 16:24:26,442 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2020-07-20 16:24:26,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 124 states.
[2020-07-20 16:24:26,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions.
[2020-07-20 16:24:26,448 INFO  L78                 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52
[2020-07-20 16:24:26,448 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:24:26,449 INFO  L479      AbstractCegarLoop]: Abstraction has 124 states and 144 transitions.
[2020-07-20 16:24:26,449 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-20 16:24:26,449 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions.
[2020-07-20 16:24:26,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-07-20 16:24:26,453 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 16:24:26,453 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]
[2020-07-20 16:24:26,657 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:26,657 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:24:26,658 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:24:26,658 INFO  L82        PathProgramCache]: Analyzing trace with hash -687450637, now seen corresponding path program 1 times
[2020-07-20 16:24:26,659 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:24:26,660 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507798964]
[2020-07-20 16:24:26,660 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:27,224 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 16:24:27,225 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:24:27,230 INFO  L263         TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-07-20 16:24:27,234 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:24:27,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 16:24:27,266 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:24:27,267 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507798964]
[2020-07-20 16:24:27,267 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:24:27,267 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 16:24:27,267 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389399273]
[2020-07-20 16:24:27,269 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 16:24:27,269 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:24:27,270 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 16:24:27,270 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 16:24:27,270 INFO  L87              Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states.
[2020-07-20 16:24:27,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:24:27,291 INFO  L93              Difference]: Finished difference Result 184 states and 213 transitions.
[2020-07-20 16:24:27,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 16:24:27,292 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 53
[2020-07-20 16:24:27,292 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:24:27,294 INFO  L225             Difference]: With dead ends: 184
[2020-07-20 16:24:27,294 INFO  L226             Difference]: Without dead ends: 115
[2020-07-20 16:24:27,296 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 16:24:27,296 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2020-07-20 16:24:27,312 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2020-07-20 16:24:27,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 115 states.
[2020-07-20 16:24:27,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions.
[2020-07-20 16:24:27,314 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 53
[2020-07-20 16:24:27,315 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:24:27,315 INFO  L479      AbstractCegarLoop]: Abstraction has 115 states and 132 transitions.
[2020-07-20 16:24:27,315 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 16:24:27,315 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions.
[2020-07-20 16:24:27,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-07-20 16:24:27,317 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 16:24:27,318 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]
[2020-07-20 16:24:27,530 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:27,531 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:24:27,532 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:24:27,532 INFO  L82        PathProgramCache]: Analyzing trace with hash 585649573, now seen corresponding path program 1 times
[2020-07-20 16:24:27,532 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:24:27,533 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407990478]
[2020-07-20 16:24:27,533 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:27,918 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-20 16:24:27,919 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:24:27,925 INFO  L263         TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-07-20 16:24:27,930 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:24:27,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 16:24:27,958 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:24:27,958 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407990478]
[2020-07-20 16:24:27,959 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:24:27,959 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 16:24:27,959 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662865593]
[2020-07-20 16:24:27,960 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 16:24:27,960 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:24:27,960 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 16:24:27,961 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 16:24:27,961 INFO  L87              Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 3 states.
[2020-07-20 16:24:27,997 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:24:27,997 INFO  L93              Difference]: Finished difference Result 293 states and 347 transitions.
[2020-07-20 16:24:27,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-20 16:24:27,998 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 58
[2020-07-20 16:24:27,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:24:28,001 INFO  L225             Difference]: With dead ends: 293
[2020-07-20 16:24:28,001 INFO  L226             Difference]: Without dead ends: 202
[2020-07-20 16:24:28,003 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 16:24:28,004 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-07-20 16:24:28,026 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 190.
[2020-07-20 16:24:28,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 190 states.
[2020-07-20 16:24:28,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions.
[2020-07-20 16:24:28,029 INFO  L78                 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 58
[2020-07-20 16:24:28,029 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:24:28,029 INFO  L479      AbstractCegarLoop]: Abstraction has 190 states and 223 transitions.
[2020-07-20 16:24:28,030 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 16:24:28,030 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions.
[2020-07-20 16:24:28,033 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-07-20 16:24:28,033 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 16:24:28,033 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]
[2020-07-20 16:24:28,243 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:28,244 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:24:28,244 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:24:28,244 INFO  L82        PathProgramCache]: Analyzing trace with hash -107584034, now seen corresponding path program 1 times
[2020-07-20 16:24:28,245 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:24:28,245 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468702643]
[2020-07-20 16:24:28,246 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:28,686 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 16:24:28,686 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 16:24:28,692 INFO  L263         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core
[2020-07-20 16:24:28,697 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 16:24:28,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 16:24:28,747 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 16:24:28,747 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468702643]
[2020-07-20 16:24:28,748 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 16:24:28,748 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-20 16:24:28,748 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059737897]
[2020-07-20 16:24:28,749 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-20 16:24:28,749 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 16:24:28,749 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-20 16:24:28,749 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-07-20 16:24:28,750 INFO  L87              Difference]: Start difference. First operand 190 states and 223 transitions. Second operand 6 states.
[2020-07-20 16:24:28,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 16:24:28,981 INFO  L93              Difference]: Finished difference Result 507 states and 631 transitions.
[2020-07-20 16:24:28,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-20 16:24:28,982 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 63
[2020-07-20 16:24:28,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 16:24:28,986 INFO  L225             Difference]: With dead ends: 507
[2020-07-20 16:24:28,987 INFO  L226             Difference]: Without dead ends: 341
[2020-07-20 16:24:28,989 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2020-07-20 16:24:28,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 341 states.
[2020-07-20 16:24:29,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337.
[2020-07-20 16:24:29,039 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 337 states.
[2020-07-20 16:24:29,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 408 transitions.
[2020-07-20 16:24:29,042 INFO  L78                 Accepts]: Start accepts. Automaton has 337 states and 408 transitions. Word has length 63
[2020-07-20 16:24:29,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 16:24:29,042 INFO  L479      AbstractCegarLoop]: Abstraction has 337 states and 408 transitions.
[2020-07-20 16:24:29,042 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-20 16:24:29,043 INFO  L276                IsEmpty]: Start isEmpty. Operand 337 states and 408 transitions.
[2020-07-20 16:24:29,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-07-20 16:24:29,047 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 16:24:29,047 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]
[2020-07-20 16:24:29,260 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:29,261 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 16:24:29,261 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 16:24:29,261 INFO  L82        PathProgramCache]: Analyzing trace with hash -1290048412, now seen corresponding path program 1 times
[2020-07-20 16:24:29,261 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 16:24:29,262 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461068701]
[2020-07-20 16:24:29,262 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:29,655 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 16:24:29,655 INFO  L229   tOrderPrioritization]: Conjunction of SSA is sat
[2020-07-20 16:24:29,656 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 16:24:29,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-20 16:24:29,765 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 16:24:29,996 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-20 16:24:29,996 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-07-20 16:24:30,210 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 16:24:30,368 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:24:30 BoogieIcfgContainer
[2020-07-20 16:24:30,369 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 16:24:30,372 INFO  L168              Benchmark]: Toolchain (without parser) took 6889.58 ms. Allocated memory was 145.8 MB in the beginning and 280.5 MB in the end (delta: 134.7 MB). Free memory was 102.4 MB in the beginning and 197.0 MB in the end (delta: -94.6 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,372 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,375 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 704.58 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 174.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,376 INFO  L168              Benchmark]: Boogie Preprocessor took 146.78 ms. Allocated memory is still 204.5 MB. Free memory was 174.6 MB in the beginning and 170.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,377 INFO  L168              Benchmark]: RCFGBuilder took 1344.14 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.5 MB in the beginning and 197.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,378 INFO  L168              Benchmark]: TraceAbstraction took 4687.09 ms. Allocated memory was 235.4 MB in the beginning and 280.5 MB in the end (delta: 45.1 MB). Free memory was 197.8 MB in the beginning and 197.0 MB in the end (delta: 846.5 kB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB.
[2020-07-20 16:24:30,387 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 704.58 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 102.0 MB in the beginning and 174.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 146.78 ms. Allocated memory is still 204.5 MB. Free memory was 174.6 MB in the beginning and 170.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1344.14 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.5 MB in the beginning and 197.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 4687.09 ms. Allocated memory was 235.4 MB in the beginning and 280.5 MB in the end (delta: 45.1 MB). Free memory was 197.8 MB in the beginning and 197.0 MB in the end (delta: 846.5 kB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L218]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L426]              int pumpRunning  =    0;
[L427]              int systemActive  =    1;
[L675]              int waterLevel  =    1;
[L676]              int methaneLevelCritical  =    0;
[L769]              int cleanupTimeShifts  =    4;
        VAL         [\old(cleanupTimeShifts)=93, \old(head)=69, \old(head)=62, \old(methaneLevelCritical)=31, \old(pumpRunning)=27, \old(systemActive)=70, \old(waterLevel)=74, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L845]              int retValue_acc ;
[L846]              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]
[L850]  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]
[L851]  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]
[L852]  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]
[L894]              int retValue_acc ;
[L897]              retValue_acc = 1
[L898]              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]
[L852]  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]
[L852]              tmp = valid_product()
[L854]  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]
[L856]  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]
[L857]  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]
[L836]  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]
[L606]              int splverifierCounter ;
[L607]              int tmp ;
[L608]              int tmp___0 ;
[L609]              int tmp___1 ;
[L610]              int tmp___2 ;
[L613]              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]
[L615]  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]
[L617]  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]
[L623]              tmp = __VERIFIER_nondet_int()
[L625]  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]
[L627]  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]
[L693]  COND TRUE   waterLevel < 2
[L694]              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]
[L627]  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]
[L633]              tmp___0 = __VERIFIER_nondet_int()
[L635]  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]
[L643]              tmp___2 = __VERIFIER_nondet_int()
[L645]  COND FALSE  !(\read(tmp___2))
[L651]              tmp___1 = __VERIFIER_nondet_int()
[L653]  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]
[L655]  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]
[L582]  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]
[L589]              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]
[L655]  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]
[L662]  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]
[L434]  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]
[L441]  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]
[L449]  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]
[L904]              int tmp ;
[L905]              int tmp___0 ;
[L906]              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]
[L910]  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]
[L714]              int retValue_acc ;
[L717]              retValue_acc = methaneLevelCritical
[L718]              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]
[L910]  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]
[L910]              tmp = isMethaneLevelCritical()
[L912]  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]
[L916]  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]
[L746]              int retValue_acc ;
[L749]              retValue_acc = waterLevel
[L750]              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]
[L916]  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]
[L916]              tmp___0 = getWaterLevel()
[L918]  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]
[L920]  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]
[L515]              int retValue_acc ;
[L518]              retValue_acc = pumpRunning
[L519]              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]
[L920]  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]
[L920]              tmp___1 = isPumpRunning()
[L922]  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]
[L926]  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]
[L44]               __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 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 607 SDtfs, 176 SDslu, 678 SDs, 0 SdLazy, 88 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 293 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2635 ConjunctsInSsa, 25 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...