/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:59:46,203 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:59:46,205 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:59:46,228 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:59:46,229 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:59:46,230 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:59:46,231 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:59:46,233 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:59:46,234 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:59:46,235 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:59:46,236 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:59:46,237 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:59:46,238 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:59:46,238 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:59:46,240 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:59:46,241 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:59:46,241 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:59:46,242 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:59:46,244 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:59:46,245 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:59:46,247 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:59:46,248 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:59:46,249 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:59:46,250 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:59:46,252 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:59:46,252 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:59:46,253 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:59:46,253 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:59:46,254 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:59:46,255 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:59:46,255 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:59:46,256 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:59:46,256 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:59:46,257 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:59:46,258 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:59:46,258 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:59:46,259 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:59:46,259 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:59:46,259 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:59:46,260 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:59:46,261 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:59:46,262 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
[2020-10-12 17:59:46,285 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:59:46,285 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:59:46,286 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:59:46,286 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:59:46,286 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:59:46,287 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:59:46,287 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:59:46,287 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:59:46,287 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:59:46,287 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:59:46,288 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:59:46,288 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:59:46,288 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:59:46,288 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:59:46,288 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:59:46,289 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:59:46,289 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:59:46,289 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:59:46,289 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:59:46,289 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:59:46,290 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:59:46,290 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:59:46,290 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:59:46,290 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:59:46,290 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:59:46,291 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:59:46,291 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:59:46,291 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:59:46,291 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:59:46,291 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
[2020-10-12 17:59:46,608 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:59:46,628 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:59:46,632 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:59:46,634 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:59:46,635 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:59:46,636 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c
[2020-10-12 17:59:46,700 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29f6747e/8f40e16284774dae8355fc3e53405634/FLAG128f736f8
[2020-10-12 17:59:47,242 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:59:47,248 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c
[2020-10-12 17:59:47,263 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29f6747e/8f40e16284774dae8355fc3e53405634/FLAG128f736f8
[2020-10-12 17:59:47,526 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c29f6747e/8f40e16284774dae8355fc3e53405634
[2020-10-12 17:59:47,534 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:59:47,536 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:59:47,537 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:59:47,537 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:59:47,541 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:59:47,542 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:59:47" (1/1) ...
[2020-10-12 17:59:47,545 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768b38ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:47, skipping insertion in model container
[2020-10-12 17:59:47,545 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:59:47" (1/1) ...
[2020-10-12 17:59:47,554 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:59:47,623 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:59:48,047 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:59:48,070 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:59:48,156 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:59:48,202 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:59:48,202 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48 WrapperNode
[2020-10-12 17:59:48,203 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:59:48,203 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:59:48,204 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:59:48,204 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:59:48,218 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,218 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,239 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,239 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,273 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,284 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,289 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (1/1) ...
[2020-10-12 17:59:48,297 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:59:48,298 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:59:48,298 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:59:48,298 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:59:48,299 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (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
[2020-10-12 17:59:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:59:48,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:59:48,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:59:48,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:59:48,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:59:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:59:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:59:48,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:59:48,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:59:48,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:59:48,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:59:48,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:59:48,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:59:48,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-12 17:59:48,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:59:48,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:59:48,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:59:48,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:59:48,391 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-12 17:59:48,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-12 17:59:48,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-12 17:59:48,392 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:59:48,393 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:59:48,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-12 17:59:48,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-12 17:59:48,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:59:48,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:59:48,394 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:59:48,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:59:48,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:59:48,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:59:48,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:59:48,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:59:48,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:59:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:59:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:59:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:59:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:59:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:59:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:59:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:59:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:59:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:59:48,401 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:59:48,401 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:59:48,401 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:59:48,401 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:59:48,401 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:59:48,402 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:59:48,402 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:59:48,402 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:59:48,402 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:59:48,402 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:59:48,403 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-12 17:59:48,403 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-12 17:59:48,403 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:59:48,403 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:59:48,403 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:59:48,404 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-12 17:59:48,404 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:59:48,405 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:59:48,406 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:59:48,407 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:59:48,408 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:59:48,409 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:59:48,410 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:59:48,410 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:59:48,410 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:59:48,410 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:59:48,410 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:59:48,411 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:59:48,411 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:59:49,636 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:59:49,636 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:59:49,642 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:59:49 BoogieIcfgContainer
[2020-10-12 17:59:49,642 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:59:49,644 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:59:49,644 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:59:49,647 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:59:49,648 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:59:47" (1/3) ...
[2020-10-12 17:59:49,648 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39414f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:59:49, skipping insertion in model container
[2020-10-12 17:59:49,649 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:59:48" (2/3) ...
[2020-10-12 17:59:49,649 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39414f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:59:49, skipping insertion in model container
[2020-10-12 17:59:49,649 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:59:49" (3/3) ...
[2020-10-12 17:59:49,651 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c
[2020-10-12 17:59:49,662 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:59:49,670 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:59:49,684 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:59:49,708 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:59:49,708 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:59:49,708 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:59:49,708 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:59:49,709 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:59:49,709 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:59:49,709 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:59:49,709 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:59:49,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states.
[2020-10-12 17:59:49,743 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:59:49,743 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:59:49,744 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]
[2020-10-12 17:59:49,745 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:59:49,750 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:59:49,751 INFO  L82        PathProgramCache]: Analyzing trace with hash -1970857402, now seen corresponding path program 1 times
[2020-10-12 17:59:49,759 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:59:49,760 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334259217]
[2020-10-12 17:59:49,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:59:50,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:50,153 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:50,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:51,242 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:52,654 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:52,654 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:59:52,655 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:59:52,655 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2615
[2020-10-12 17:59:52,658 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:52,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:59:52,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:59:52,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:59:52,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 12
[2020-10-12 17:59:53,159 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:59:53,162 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:59:53,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:59:53,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 132
[2020-10-12 17:59:53,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:59:53,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:59:53,380 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:59:53,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,383 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,387 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:59:53,388 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,388 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:59:53,389 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:59:53,390 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:59:53,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,397 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,398 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:59:53,398 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,398 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:59:53,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:59:53,400 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,402 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:59:53,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,405 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:59:53,410 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:59:53,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:59:53,412 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,415 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:59:53,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,422 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,422 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:59:53,423 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,423 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:59:53,423 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:59:53,425 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,430 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:59:53,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,433 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,443 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:59:53,444 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-12 17:59:53,444 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:59:53,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:59:53,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,453 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:59:53,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,457 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,467 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,467 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:59:53,468 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,468 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-10-12 17:59:53,468 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:59:53,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:59:53,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:59:53,470 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:59:53,535 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:59:53,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:59:53,538 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:59:53,540 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:59:53,540 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:59:53,540 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:59:53,540 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:59:53,541 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:59:53,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:59:53,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:59:53,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:59:53,542 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:59:53,568 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:59:53,569 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334259217]
[2020-10-12 17:59:53,572 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:59:53,572 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-12 17:59:53,574 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458719505]
[2020-10-12 17:59:53,581 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 17:59:53,582 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:59:53,604 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 17:59:53,605 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-12 17:59:53,608 INFO  L87              Difference]: Start difference. First operand 205 states. Second operand 8 states.
[2020-10-12 17:59:54,181 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:59:56,074 WARN  L193               SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-10-12 17:59:56,580 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:59:56,914 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:59:57,525 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-10-12 17:59:58,039 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:59:59,779 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:59:59,779 INFO  L93              Difference]: Finished difference Result 535 states and 741 transitions.
[2020-10-12 17:59:59,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-12 17:59:59,782 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-12 17:59:59,784 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:59:59,806 INFO  L225             Difference]: With dead ends: 535
[2020-10-12 17:59:59,806 INFO  L226             Difference]: Without dead ends: 335
[2020-10-12 17:59:59,812 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2020-10-12 17:59:59,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 335 states.
[2020-10-12 17:59:59,985 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 284.
[2020-10-12 17:59:59,989 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 284 states.
[2020-10-12 17:59:59,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 352 transitions.
[2020-10-12 17:59:59,999 INFO  L78                 Accepts]: Start accepts. Automaton has 284 states and 352 transitions. Word has length 52
[2020-10-12 18:00:00,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:00:00,000 INFO  L479      AbstractCegarLoop]: Abstraction has 284 states and 352 transitions.
[2020-10-12 18:00:00,000 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 18:00:00,000 INFO  L276                IsEmpty]: Start isEmpty. Operand 284 states and 352 transitions.
[2020-10-12 18:00:00,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-10-12 18:00:00,017 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 18:00:00,017 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]
[2020-10-12 18:00:00,017 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 18:00:00,017 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:00:00,018 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:00:00,018 INFO  L82        PathProgramCache]: Analyzing trace with hash 684101873, now seen corresponding path program 1 times
[2020-10-12 18:00:00,018 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:00:00,018 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812074270]
[2020-10-12 18:00:00,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:00:00,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:00,081 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:00,669 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:00,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-10-12 18:00:00,671 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:00,671 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 610
[2020-10-12 18:00:00,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:00,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 18:00:00,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 18:00:00,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-10-12 18:00:00,673 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:00:00,990 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 18:00:00,991 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:00:01,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,023 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,094 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 83
[2020-10-12 18:00:01,095 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 18:00:01,096 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,114 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 18:00:01,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,117 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,117 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:00:01,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,118 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 18:00:01,118 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 18:00:01,119 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,120 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 18:00:01,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,122 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:00:01,123 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,123 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:00:01,123 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 18:00:01,124 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,125 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 18:00:01,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,127 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,129 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,129 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,129 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,130 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 18:00:01,130 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 18:00:01,131 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,132 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 18:00:01,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,133 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,135 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:00:01,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:00:01,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 18:00:01,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,143 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 18:00:01,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,146 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,148 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,148 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,148 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,148 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 18:00:01,148 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 18:00:01,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:00:01,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 18:00:01,149 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-10-12 18:00:01,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,153 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,153 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,154 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,154 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:00:01,154 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:00:01,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 18:00:01,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:00:01,155 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,156 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2020-10-12 18:00:01,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,157 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,158 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,158 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,159 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,159 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:00:01,159 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:00:01,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 18:00:01,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:00:01,160 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,161 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2020-10-12 18:00:01,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:00:01,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:00:01,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:00:01,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 18:00:01,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:00:01,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:00:01,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 18:00:01,175 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812074270]
[2020-10-12 18:00:01,175 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 18:00:01,176 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 18:00:01,176 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954563373]
[2020-10-12 18:00:01,178 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 18:00:01,178 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:00:01,178 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 18:00:01,178 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 18:00:01,179 INFO  L87              Difference]: Start difference. First operand 284 states and 352 transitions. Second operand 5 states.
[2020-10-12 18:00:01,518 WARN  L193               SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 18:00:04,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:00:04,115 INFO  L93              Difference]: Finished difference Result 931 states and 1242 transitions.
[2020-10-12 18:00:04,116 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-12 18:00:04,116 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 61
[2020-10-12 18:00:04,117 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:00:04,126 INFO  L225             Difference]: With dead ends: 931
[2020-10-12 18:00:04,126 INFO  L226             Difference]: Without dead ends: 671
[2020-10-12 18:00:04,129 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-12 18:00:04,131 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 671 states.
[2020-10-12 18:00:04,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 535.
[2020-10-12 18:00:04,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 535 states.
[2020-10-12 18:00:04,281 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 672 transitions.
[2020-10-12 18:00:04,282 INFO  L78                 Accepts]: Start accepts. Automaton has 535 states and 672 transitions. Word has length 61
[2020-10-12 18:00:04,282 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:00:04,283 INFO  L479      AbstractCegarLoop]: Abstraction has 535 states and 672 transitions.
[2020-10-12 18:00:04,283 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 18:00:04,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 535 states and 672 transitions.
[2020-10-12 18:00:04,286 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-12 18:00:04,286 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 18:00:04,287 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]
[2020-10-12 18:00:04,287 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 18:00:04,287 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:00:04,287 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:00:04,287 INFO  L82        PathProgramCache]: Analyzing trace with hash -1081719041, now seen corresponding path program 1 times
[2020-10-12 18:00:04,288 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:00:04,288 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181730322]
[2020-10-12 18:00:04,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:00:04,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 18:00:04,332 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 18:00:04,332 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 18:00:04,337 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 18:00:04,361 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:00:04 BoogieIcfgContainer
[2020-10-12 18:00:04,361 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 18:00:04,363 INFO  L168              Benchmark]: Toolchain (without parser) took 16826.95 ms. Allocated memory was 138.4 MB in the beginning and 502.8 MB in the end (delta: 364.4 MB). Free memory was 100.2 MB in the beginning and 244.8 MB in the end (delta: -144.6 MB). Peak memory consumption was 219.7 MB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,364 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,365 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 666.11 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 167.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,366 INFO  L168              Benchmark]: Boogie Preprocessor took 93.89 ms. Allocated memory is still 201.9 MB. Free memory was 167.2 MB in the beginning and 162.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,367 INFO  L168              Benchmark]: RCFGBuilder took 1344.77 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 162.3 MB in the beginning and 188.9 MB in the end (delta: -26.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,368 INFO  L168              Benchmark]: TraceAbstraction took 14717.26 ms. Allocated memory was 232.8 MB in the beginning and 502.8 MB in the end (delta: 270.0 MB). Free memory was 188.9 MB in the beginning and 244.8 MB in the end (delta: -55.9 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB.
[2020-10-12 18:00:04,371 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 666.11 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 167.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 93.89 ms. Allocated memory is still 201.9 MB. Free memory was 167.2 MB in the beginning and 162.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1344.77 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 162.3 MB in the beginning and 188.9 MB in the end (delta: -26.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 14717.26 ms. Allocated memory was 232.8 MB in the beginning and 502.8 MB in the end (delta: 270.0 MB). Free memory was 188.9 MB in the beginning and 244.8 MB in the end (delta: -55.9 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L188]              int pumpRunning  =    0;
[L189]              int systemActive  =    1;
[L512]              int waterLevel  =    1;
[L513]              int methaneLevelCritical  =    0;
[L827]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L170]              int retValue_acc ;
[L173]              retValue_acc = 1
[L174]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L445]              int splverifierCounter ;
[L446]              int tmp ;
[L447]              int tmp___0 ;
[L448]              int tmp___1 ;
[L449]              int tmp___2 ;
[L452]              splverifierCounter = 0
[L454]  COND TRUE   1
[L456]  COND TRUE   splverifierCounter < 4
[L462]              tmp = __VERIFIER_nondet_int()
[L464]  COND TRUE   \read(tmp)
[L466]  CALL        waterRise()
[L530]  COND TRUE   waterLevel < 2
[L531]              waterLevel = waterLevel + 1
[L466]  RET         waterRise()
[L472]              tmp___0 = __VERIFIER_nondet_int()
[L474]  COND FALSE  !(\read(tmp___0))
[L482]              tmp___2 = __VERIFIER_nondet_int()
[L484]  COND FALSE  !(\read(tmp___2))
[L488]              tmp___1 = __VERIFIER_nondet_int()
[L490]  COND TRUE   \read(tmp___1)
[L492]  CALL        stopSystem()
[L432]  COND FALSE  !(\read(pumpRunning))
[L439]              systemActive = 0
[L492]  RET         stopSystem()
[L499]  CALL        timeShift()
[L196]  COND FALSE  !(\read(pumpRunning))
[L203]  COND FALSE  !(\read(systemActive))
[L211]  CALL        __utac_acc__Specification3_spec__1()
[L625]              int tmp ;
[L626]              int tmp___0 ;
[L627]              int tmp___1 ;
[L631]  CALL, EXPR  isMethaneLevelCritical()
[L551]              int retValue_acc ;
[L554]              retValue_acc = methaneLevelCritical
[L555]              return (retValue_acc);
[L631]  RET, EXPR   isMethaneLevelCritical()
[L631]              tmp = isMethaneLevelCritical()
[L633]  COND FALSE  !(\read(tmp))
[L637]  CALL, EXPR  getWaterLevel()
[L583]              int retValue_acc ;
[L586]              retValue_acc = waterLevel
[L587]              return (retValue_acc);
[L637]  RET, EXPR   getWaterLevel()
[L637]              tmp___0 = getWaterLevel()
[L639]  COND TRUE   tmp___0 == 2
[L641]  CALL, EXPR  isPumpRunning()
[L346]              int retValue_acc ;
[L349]              retValue_acc = pumpRunning
[L350]              return (retValue_acc);
[L641]  RET, EXPR   isPumpRunning()
[L641]              tmp___1 = isPumpRunning()
[L643]  COND FALSE  !(\read(tmp___1))
[L647]  CALL        __automaton_fail()
[L619]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 43 procedures, 261 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 841 SDslu, 282 SDs, 0 SdLazy, 1473 SolverSat, 548 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=535occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 187 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 35397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...