/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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:49:16,862 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:49:16,866 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:49:16,915 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:49:16,916 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:49:16,926 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:49:16,929 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:49:16,933 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:49:16,936 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:49:16,939 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:49:16,940 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:49:16,941 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:49:16,942 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:49:16,945 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:49:16,948 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:49:16,951 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:49:16,952 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:49:16,953 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:49:16,955 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:49:16,957 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:49:16,961 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:49:16,963 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:49:16,964 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:49:16,965 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:49:16,970 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:49:16,971 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:49:16,971 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:49:16,974 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:49:16,974 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:49:16,977 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:49:16,977 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:49:16,978 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:49:16,979 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:49:16,979 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:49:16,981 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:49:16,981 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:49:16,982 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:49:16,982 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:49:16,982 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:49:16,983 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:49:16,985 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:49:16,986 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
[2020-09-25 09:49:17,034 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:49:17,034 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:49:17,037 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:49:17,037 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:49:17,037 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:49:17,037 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:49:17,038 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:49:17,038 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:49:17,038 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:49:17,038 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:49:17,040 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:49:17,040 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:49:17,040 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:49:17,041 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:49:17,041 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:49:17,041 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:49:17,041 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:49:17,041 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:49:17,042 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:49:17,042 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:49:17,042 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:49:17,042 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:17,042 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:49:17,043 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:49:17,043 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:49:17,043 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:49:17,043 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:49:17,043 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:49:17,044 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:49:17,044 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 -> SingleStatement
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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 09:49:17,497 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:49:17,524 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:49:17,530 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:49:17,532 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:49:17,532 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:49:17,533 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 09:49:17,630 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/634a57f9c/2bf5367c0a8a4818bde6edeef889f239/FLAGb97d7fe70
[2020-09-25 09:49:18,250 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:49:18,251 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 09:49:18,268 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/634a57f9c/2bf5367c0a8a4818bde6edeef889f239/FLAGb97d7fe70
[2020-09-25 09:49:18,526 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/634a57f9c/2bf5367c0a8a4818bde6edeef889f239
[2020-09-25 09:49:18,538 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:49:18,543 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:49:18,544 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:18,544 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:49:18,548 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:49:18,549 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:18" (1/1) ...
[2020-09-25 09:49:18,554 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:18, skipping insertion in model container
[2020-09-25 09:49:18,554 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:18" (1/1) ...
[2020-09-25 09:49:18,562 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:49:18,613 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:49:19,072 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:19,088 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:49:19,198 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:19,250 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:49:19,252 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19 WrapperNode
[2020-09-25 09:49:19,252 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:19,253 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:19,253 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:19,253 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:19,272 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,274 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,310 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,311 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,357 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,378 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,393 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,407 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:19,408 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:19,408 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:19,408 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:19,410 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (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
[2020-09-25 09:49:19,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:19,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:19,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:19,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:19,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:19,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:19,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:19,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 09:49:19,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:49:19,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:19,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:19,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:19,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:19,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:19,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:19,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:19,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:19,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:19,493 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:19,494 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:19,495 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:19,496 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:19,497 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:19,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:19,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:19,500 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:19,501 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:20,800 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:20,804 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:20,814 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:20 BoogieIcfgContainer
[2020-09-25 09:49:20,814 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:20,817 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:20,817 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:20,820 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:20,821 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:18" (1/3) ...
[2020-09-25 09:49:20,821 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326e9a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:20, skipping insertion in model container
[2020-09-25 09:49:20,822 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19" (2/3) ...
[2020-09-25 09:49:20,822 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326e9a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:20, skipping insertion in model container
[2020-09-25 09:49:20,823 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:20" (3/3) ...
[2020-09-25 09:49:20,825 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c
[2020-09-25 09:49:20,839 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:20,854 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:20,878 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:20,920 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:20,921 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:20,921 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:20,921 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:20,921 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:20,921 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:20,922 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:20,922 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:20,967 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 09:49:20,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:20,987 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:20,988 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:20,989 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:20,995 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:20,996 INFO  L82        PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times
[2020-09-25 09:49:21,007 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:21,008 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148150711]
[2020-09-25 09:49:21,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:21,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:21,589 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:21,765 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:23,238 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:26,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:26,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:26,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:26,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5027
[2020-09-25 09:49:26,453 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:26,453 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:26,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:26,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 09:49:26,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 09:49:26,455 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 09:49:27,094 WARN  L193               SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:27,097 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:27,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,440 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,441 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:27,441 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,441 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 303
[2020-09-25 09:49:27,441 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,441 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 09:49:27,442 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,519 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:27,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,530 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,530 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:27,530 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,530 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 09:49:27,531 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,531 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:27,532 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,537 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:27,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,543 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,544 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:27,544 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,544 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:27,544 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,545 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:27,545 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,561 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:27,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,576 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,577 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:27,577 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,577 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 09:49:27,577 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,578 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:27,578 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,581 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:27,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:27,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:27,590 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,591 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:27,591 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:27,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,598 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,602 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,603 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:27,603 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,603 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:27,603 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,604 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:27,605 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:27,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,612 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,623 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,624 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:27,624 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,624 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 09:49:27,624 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,625 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:27,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:27,626 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,657 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:27,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,661 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,664 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,664 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:27,664 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,665 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:27,665 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,665 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:27,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:27,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:27,666 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:27,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:27,719 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148150711]
[2020-09-25 09:49:27,722 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:27,723 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:27,724 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156256194]
[2020-09-25 09:49:27,736 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:27,736 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:27,761 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:27,766 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:27,770 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 8 states.
[2020-09-25 09:49:28,544 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:30,111 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:30,513 WARN  L193               SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:30,922 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:31,334 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:31,681 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:32,347 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:32,691 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:33,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:33,820 INFO  L93              Difference]: Finished difference Result 607 states and 751 transitions.
[2020-09-25 09:49:33,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:49:33,824 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:33,825 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:33,846 INFO  L225             Difference]: With dead ends: 607
[2020-09-25 09:49:33,846 INFO  L226             Difference]: Without dead ends: 405
[2020-09-25 09:49:33,853 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:49:33,880 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 405 states.
[2020-09-25 09:49:33,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 358.
[2020-09-25 09:49:33,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 358 states.
[2020-09-25 09:49:33,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 396 transitions.
[2020-09-25 09:49:33,998 INFO  L78                 Accepts]: Start accepts. Automaton has 358 states and 396 transitions. Word has length 153
[2020-09-25 09:49:33,999 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:33,999 INFO  L479      AbstractCegarLoop]: Abstraction has 358 states and 396 transitions.
[2020-09-25 09:49:33,999 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:33,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 358 states and 396 transitions.
[2020-09-25 09:49:34,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 09:49:34,006 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:34,006 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:34,006 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:34,006 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:34,007 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:34,007 INFO  L82        PathProgramCache]: Analyzing trace with hash -326252461, now seen corresponding path program 1 times
[2020-09-25 09:49:34,007 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:34,008 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204684644]
[2020-09-25 09:49:34,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:34,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:34,164 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:34,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:34,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 09:49:34,532 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:34,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 460
[2020-09-25 09:49:34,532 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:34,533 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:34,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:34,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 09:49:34,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 09:49:34,534 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:34,892 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:34,894 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:34,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:34,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,037 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,038 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:35,038 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,038 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 134
[2020-09-25 09:49:35,038 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,039 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,039 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 09:49:35,074 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:35,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,078 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,078 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,078 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,079 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,079 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,079 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,080 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,081 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:35,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,083 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,084 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,085 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,085 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:35,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,093 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,093 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,094 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,094 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:35,094 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,094 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,095 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,096 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:35,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,098 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,099 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,100 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,100 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,101 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,101 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 09:49:35,109 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:35,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,111 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,116 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:35,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,117 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:35,117 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,117 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:49:35,130 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 09:49:35,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,133 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:35,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 09:49:35,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 09:49:35,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,148 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,148 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,149 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:35,149 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,149 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,150 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,152 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 09:49:35,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,156 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,156 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,157 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,157 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 09:49:35,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 09:49:35,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,162 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,162 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:35,202 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204684644]
[2020-09-25 09:49:35,202 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:35,202 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:35,202 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429019987]
[2020-09-25 09:49:35,206 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:35,206 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:35,207 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:35,207 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:35,207 INFO  L87              Difference]: Start difference. First operand 358 states and 396 transitions. Second operand 6 states.
[2020-09-25 09:49:35,673 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:38,153 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:38,153 INFO  L93              Difference]: Finished difference Result 1053 states and 1296 transitions.
[2020-09-25 09:49:38,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 09:49:38,153 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 09:49:38,155 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:38,165 INFO  L225             Difference]: With dead ends: 1053
[2020-09-25 09:49:38,166 INFO  L226             Difference]: Without dead ends: 805
[2020-09-25 09:49:38,170 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 09:49:38,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 805 states.
[2020-09-25 09:49:38,299 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 599.
[2020-09-25 09:49:38,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 599 states.
[2020-09-25 09:49:38,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 681 transitions.
[2020-09-25 09:49:38,304 INFO  L78                 Accepts]: Start accepts. Automaton has 599 states and 681 transitions. Word has length 172
[2020-09-25 09:49:38,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:38,305 INFO  L479      AbstractCegarLoop]: Abstraction has 599 states and 681 transitions.
[2020-09-25 09:49:38,305 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:38,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 599 states and 681 transitions.
[2020-09-25 09:49:38,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 09:49:38,311 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:38,311 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:38,311 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:38,311 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:38,312 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:38,312 INFO  L82        PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times
[2020-09-25 09:49:38,312 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:38,312 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737505406]
[2020-09-25 09:49:38,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:38,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:38,391 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:38,391 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:38,397 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:38,423 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:38 BoogieIcfgContainer
[2020-09-25 09:49:38,424 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:38,426 INFO  L168              Benchmark]: Toolchain (without parser) took 19886.51 ms. Allocated memory was 137.9 MB in the beginning and 525.9 MB in the end (delta: 388.0 MB). Free memory was 100.3 MB in the beginning and 309.2 MB in the end (delta: -208.9 MB). Peak memory consumption was 179.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,427 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,428 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 709.11 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 169.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,429 INFO  L168              Benchmark]: Boogie Preprocessor took 154.54 ms. Allocated memory is still 201.9 MB. Free memory was 169.8 MB in the beginning and 163.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,430 INFO  L168              Benchmark]: RCFGBuilder took 1406.55 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 163.6 MB in the beginning and 173.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,431 INFO  L168              Benchmark]: TraceAbstraction took 17607.29 ms. Allocated memory was 231.2 MB in the beginning and 525.9 MB in the end (delta: 294.6 MB). Free memory was 173.0 MB in the beginning and 309.2 MB in the end (delta: -136.2 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:38,435 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 709.11 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 169.8 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 154.54 ms. Allocated memory is still 201.9 MB. Free memory was 169.8 MB in the beginning and 163.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1406.55 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 163.6 MB in the beginning and 173.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17607.29 ms. Allocated memory was 231.2 MB in the beginning and 525.9 MB in the end (delta: 294.6 MB). Free memory was 173.0 MB in the beginning and 309.2 MB in the end (delta: -136.2 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L89]               int pumpRunning  =    0;
[L90]               int systemActive  =    1;
[L356]              int waterLevel  =    1;
[L357]              int methaneLevelCritical  =    0;
[L445]              int cleanupTimeShifts  =    4;
[L753]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L518]              int retValue_acc ;
[L519]              int tmp ;
[L523]  FCALL       select_helpers()
[L524]  FCALL       select_features()
[L525]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L525]  RET, EXPR   valid_product()
[L525]              tmp = valid_product()
[L527]  COND TRUE   \read(tmp)
[L529]  FCALL       setup()
[L530]  CALL        runTest()
[L512]  CALL        test()
[L287]              int splverifierCounter ;
[L288]              int tmp ;
[L289]              int tmp___0 ;
[L290]              int tmp___1 ;
[L291]              int tmp___2 ;
[L294]              splverifierCounter = 0
[L296]  COND TRUE   1
[L298]  COND TRUE   splverifierCounter < 4
[L304]              tmp = __VERIFIER_nondet_int()
[L306]  COND TRUE   \read(tmp)
[L308]  CALL        waterRise()
[L374]  COND TRUE   waterLevel < 2
[L375]              waterLevel = waterLevel + 1
[L308]  RET         waterRise()
[L314]              tmp___0 = __VERIFIER_nondet_int()
[L316]  COND FALSE  !(\read(tmp___0))
[L324]              tmp___2 = __VERIFIER_nondet_int()
[L326]  COND FALSE  !(\read(tmp___2))
[L332]              tmp___1 = __VERIFIER_nondet_int()
[L334]  COND TRUE   \read(tmp___1)
[L336]  CALL        stopSystem()
[L263]  COND FALSE  !(\read(pumpRunning))
[L270]              systemActive = 0
[L336]  RET         stopSystem()
[L343]  CALL        timeShift()
[L97]   COND FALSE  !(\read(pumpRunning))
[L104]  COND FALSE  !(\read(systemActive))
[L112]  CALL        __utac_acc__Specification3_spec__1()
[L551]              int tmp ;
[L552]              int tmp___0 ;
[L553]              int tmp___1 ;
[L557]  CALL, EXPR  isMethaneLevelCritical()
[L395]              int retValue_acc ;
[L398]              retValue_acc = methaneLevelCritical
[L399]              return (retValue_acc);
[L557]  RET, EXPR   isMethaneLevelCritical()
[L557]              tmp = isMethaneLevelCritical()
[L559]  COND FALSE  !(\read(tmp))
[L563]  CALL, EXPR  getWaterLevel()
[L427]              int retValue_acc ;
[L430]              retValue_acc = waterLevel
[L431]              return (retValue_acc);
[L563]  RET, EXPR   getWaterLevel()
[L563]              tmp___0 = getWaterLevel()
[L565]  COND TRUE   tmp___0 == 2
[L567]  CALL, EXPR  isPumpRunning()
[L196]              int retValue_acc ;
[L199]              retValue_acc = pumpRunning
[L200]              return (retValue_acc);
[L567]  RET, EXPR   isPumpRunning()
[L567]              tmp___1 = isPumpRunning()
[L569]  COND FALSE  !(\read(tmp___1))
[L573]  CALL        __automaton_fail()
[L545]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 534 SDtfs, 1014 SDslu, 787 SDs, 0 SdLazy, 1787 SolverSat, 368 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=599occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 253 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 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...