/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_product16.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:57:04,816 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:57:04,819 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:57:04,858 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:57:04,859 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:57:04,867 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:57:04,869 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:57:04,872 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:57:04,875 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:57:04,879 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:57:04,880 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:57:04,881 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:57:04,881 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:57:04,884 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:57:04,887 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:57:04,888 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:57:04,890 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:57:04,891 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:57:04,892 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:57:04,900 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:57:04,902 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:57:04,903 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:57:04,904 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:57:04,904 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:57:04,917 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:57:04,917 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:57:04,917 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:57:04,918 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:57:04,919 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:57:04,927 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:57:04,927 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:57:04,928 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:57:04,928 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:57:04,932 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:57:04,933 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:57:04,933 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:57:04,934 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:57:04,934 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:57:04,934 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:57:04,935 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:57:04,935 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:57:04,936 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 17:57:04,958 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:57:04,958 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:57:04,959 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:57:04,960 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:57:04,960 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:57:04,960 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:57:04,960 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:57:04,961 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:57:04,961 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:57:04,961 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:57:04,961 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:57:04,961 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:57:04,962 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:57:04,962 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:57:04,962 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:57:04,962 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:57:04,962 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:57:04,963 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:57:04,963 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:57:04,963 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:57:04,963 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:57:04,963 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:57:04,964 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:57:04,964 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:57:04,964 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:57:04,964 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:57:04,964 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:57:04,965 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:57:04,965 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:57:04,965 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 17:57:05,275 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:57:05,288 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:57:05,293 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:57:05,296 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:57:05,296 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:57:05,297 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-10-12 17:57:05,368 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/881d40cce/08727ffc92dd42fc8f72a7241b080eac/FLAGa5f318c5e
[2020-10-12 17:57:05,911 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:57:05,914 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-10-12 17:57:05,929 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/881d40cce/08727ffc92dd42fc8f72a7241b080eac/FLAGa5f318c5e
[2020-10-12 17:57:06,248 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/881d40cce/08727ffc92dd42fc8f72a7241b080eac
[2020-10-12 17:57:06,257 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:57:06,259 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:57:06,260 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:57:06,260 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:57:06,265 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:57:06,266 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,270 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21046f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06, skipping insertion in model container
[2020-10-12 17:57:06,270 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,279 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:57:06,330 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:57:06,751 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:57:06,764 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:57:06,844 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:57:06,890 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:57:06,890 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06 WrapperNode
[2020-10-12 17:57:06,891 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:57:06,892 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:57:06,893 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:57:06,893 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:57:06,906 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,906 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,928 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,928 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,962 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,972 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,978 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (1/1) ...
[2020-10-12 17:57:06,988 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:57:06,989 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:57:06,989 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:57:06,989 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:57:06,990 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (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 17:57:07,058 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:57:07,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:57:07,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:57:07,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:57:07,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:57:07,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:57:07,060 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:57:07,061 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:57:07,062 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:57:07,063 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:57:07,064 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:57:07,065 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:57:07,065 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:57:07,066 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:57:07,067 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:57:07,068 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:57:07,069 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:57:07,070 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:57:07,071 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:57:07,072 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:57:07,073 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:57:08,014 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:57:08,014 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:57:08,025 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:08 BoogieIcfgContainer
[2020-10-12 17:57:08,025 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:57:08,027 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:57:08,027 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:57:08,030 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:57:08,031 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:57:06" (1/3) ...
[2020-10-12 17:57:08,031 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3dd0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:08, skipping insertion in model container
[2020-10-12 17:57:08,032 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:06" (2/3) ...
[2020-10-12 17:57:08,032 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3dd0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:08, skipping insertion in model container
[2020-10-12 17:57:08,032 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:08" (3/3) ...
[2020-10-12 17:57:08,035 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c
[2020-10-12 17:57:08,045 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:57:08,055 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:57:08,069 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:57:08,105 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:57:08,106 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:57:08,106 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:57:08,106 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:57:08,106 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:57:08,106 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:57:08,107 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:57:08,107 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:57:08,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 166 states.
[2020-10-12 17:57:08,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:57:08,156 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:57:08,157 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 17:57:08,158 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:57:08,165 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:57:08,165 INFO  L82        PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times
[2020-10-12 17:57:08,172 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:57:08,172 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809309851]
[2020-10-12 17:57:08,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:57:08,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:08,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:08,672 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:09,512 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:10,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:10,789 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:57:10,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:57:10,790 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2373
[2020-10-12 17:57:10,792 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:10,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:57:10,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:10,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:57:10,793 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-12 17:57:11,325 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:57:11,326 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:57:11,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,381 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,501 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,501 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:11,510 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,512 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 137
[2020-10-12 17:57:11,512 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:57:11,513 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,565 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:57:11,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:11,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:57:11,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:11,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:57:11,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,580 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:11,581 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,581 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:57:11,582 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:11,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,586 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:57:11,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,590 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,594 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,595 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:11,595 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,595 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-12 17:57:11,596 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:57:11,597 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,599 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:57:11,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,603 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,606 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,607 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:11,607 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:57:11,608 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:11,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:57:11,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,622 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:11,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,627 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:57:11,627 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:11,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:57:11,628 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,631 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:57:11,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,642 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,648 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,648 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:11,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,649 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 17:57:11,649 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:57:11,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:11,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:57:11,650 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:11,683 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:57:11,684 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:11,686 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:11,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:11,688 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:11,688 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:11,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:57:11,689 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:11,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:57:11,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:11,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:57:11,691 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:11,718 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 17:57:11,719 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809309851]
[2020-10-12 17:57:11,722 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:57:11,723 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-10-12 17:57:11,724 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617965222]
[2020-10-12 17:57:11,731 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-12 17:57:11,731 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:57:11,754 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-12 17:57:11,757 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-12 17:57:11,761 INFO  L87              Difference]: Start difference. First operand 166 states. Second operand 7 states.
[2020-10-12 17:57:12,476 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:57:13,915 WARN  L193               SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-10-12 17:57:14,255 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:57:14,508 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:57:14,787 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-10-12 17:57:15,118 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-12 17:57:16,125 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:57:16,125 INFO  L93              Difference]: Finished difference Result 381 states and 520 transitions.
[2020-10-12 17:57:16,126 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-10-12 17:57:16,127 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 52
[2020-10-12 17:57:16,128 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:57:16,142 INFO  L225             Difference]: With dead ends: 381
[2020-10-12 17:57:16,142 INFO  L226             Difference]: Without dead ends: 244
[2020-10-12 17:57:16,147 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2020-10-12 17:57:16,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244 states.
[2020-10-12 17:57:16,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 204.
[2020-10-12 17:57:16,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 204 states.
[2020-10-12 17:57:16,257 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 251 transitions.
[2020-10-12 17:57:16,259 INFO  L78                 Accepts]: Start accepts. Automaton has 204 states and 251 transitions. Word has length 52
[2020-10-12 17:57:16,259 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:57:16,259 INFO  L479      AbstractCegarLoop]: Abstraction has 204 states and 251 transitions.
[2020-10-12 17:57:16,259 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-12 17:57:16,260 INFO  L276                IsEmpty]: Start isEmpty. Operand 204 states and 251 transitions.
[2020-10-12 17:57:16,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-12 17:57:16,265 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:57:16,265 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]
[2020-10-12 17:57:16,266 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 17:57:16,266 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:57:16,266 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:57:16,266 INFO  L82        PathProgramCache]: Analyzing trace with hash -1265949327, now seen corresponding path program 1 times
[2020-10-12 17:57:16,267 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:57:16,267 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006956024]
[2020-10-12 17:57:16,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:57:16,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:16,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:16,891 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:16,892 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-12 17:57:16,892 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:16,893 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 591
[2020-10-12 17:57:16,893 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:16,893 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 17:57:16,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:16,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-12 17:57:16,895 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:57:17,212 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:57:17,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:57:17,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,292 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,292 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,293 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-10-12 17:57:17,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:57:17,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,311 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:57:17,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,313 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,314 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,314 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:17,315 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,315 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:57:17,315 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:17,316 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:57:17,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,318 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,320 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,320 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:17,320 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,321 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:57:17,321 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:17,322 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,323 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:57:17,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:57:17,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,332 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:57:17,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,333 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:57:17,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,335 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:57:17,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:57:17,336 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,348 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 17:57:17,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,350 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,353 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,353 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:57:17,354 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:57:17,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:57:17,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:57:17,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-12 17:57:17,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,357 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:57:17,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:17,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:57:17,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,361 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-12 17:57:17,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,363 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,363 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,364 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,364 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:57:17,364 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,364 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:57:17,364 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:17,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:57:17,365 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,366 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-12 17:57:17,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:57:17,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:57:17,368 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:57:17,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:57:17,369 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:57:17,369 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:57:17,369 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:57:17,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:57:17,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:57:17,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:57:17,370 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:57:17,380 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 17:57:17,380 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006956024]
[2020-10-12 17:57:17,380 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:57:17,381 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 17:57:17,381 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856667929]
[2020-10-12 17:57:17,383 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 17:57:17,383 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:57:17,383 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 17:57:17,384 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 17:57:17,384 INFO  L87              Difference]: Start difference. First operand 204 states and 251 transitions. Second operand 5 states.
[2020-10-12 17:57:17,770 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:57:19,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:57:19,943 INFO  L93              Difference]: Finished difference Result 635 states and 840 transitions.
[2020-10-12 17:57:19,943 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-12 17:57:19,943 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-12 17:57:19,943 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:57:19,950 INFO  L225             Difference]: With dead ends: 635
[2020-10-12 17:57:19,950 INFO  L226             Difference]: Without dead ends: 455
[2020-10-12 17:57:19,953 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-12 17:57:19,954 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 455 states.
[2020-10-12 17:57:20,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 363.
[2020-10-12 17:57:20,078 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 363 states.
[2020-10-12 17:57:20,082 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 455 transitions.
[2020-10-12 17:57:20,082 INFO  L78                 Accepts]: Start accepts. Automaton has 363 states and 455 transitions. Word has length 62
[2020-10-12 17:57:20,083 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:57:20,083 INFO  L479      AbstractCegarLoop]: Abstraction has 363 states and 455 transitions.
[2020-10-12 17:57:20,083 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 17:57:20,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 363 states and 455 transitions.
[2020-10-12 17:57:20,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2020-10-12 17:57:20,089 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:57:20,089 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]
[2020-10-12 17:57:20,089 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 17:57:20,089 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:57:20,090 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:57:20,090 INFO  L82        PathProgramCache]: Analyzing trace with hash 1922296841, now seen corresponding path program 1 times
[2020-10-12 17:57:20,090 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:57:20,090 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863561804]
[2020-10-12 17:57:20,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:57:20,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 17:57:20,131 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 17:57:20,131 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 17:57:20,135 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 17:57:20,156 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:57:20 BoogieIcfgContainer
[2020-10-12 17:57:20,156 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 17:57:20,158 INFO  L168              Benchmark]: Toolchain (without parser) took 13899.37 ms. Allocated memory was 137.9 MB in the beginning and 492.8 MB in the end (delta: 354.9 MB). Free memory was 99.0 MB in the beginning and 124.0 MB in the end (delta: -25.0 MB). Peak memory consumption was 329.9 MB. Max. memory is 7.1 GB.
[2020-10-12 17:57:20,159 INFO  L168              Benchmark]: CDTParser took 0.21 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.
[2020-10-12 17:57:20,160 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 631.84 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 168.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB.
[2020-10-12 17:57:20,161 INFO  L168              Benchmark]: Boogie Preprocessor took 95.80 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 164.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-10-12 17:57:20,162 INFO  L168              Benchmark]: RCFGBuilder took 1036.77 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.8 MB in the beginning and 196.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB.
[2020-10-12 17:57:20,163 INFO  L168              Benchmark]: TraceAbstraction took 12129.70 ms. Allocated memory was 231.2 MB in the beginning and 492.8 MB in the end (delta: 261.6 MB). Free memory was 194.8 MB in the beginning and 124.0 MB in the end (delta: 70.8 MB). Peak memory consumption was 332.4 MB. Max. memory is 7.1 GB.
[2020-10-12 17:57:20,167 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 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 631.84 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 168.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 95.80 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 164.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1036.77 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 164.8 MB in the beginning and 196.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 12129.70 ms. Allocated memory was 231.2 MB in the beginning and 492.8 MB in the end (delta: 261.6 MB). Free memory was 194.8 MB in the beginning and 124.0 MB in the end (delta: 70.8 MB). Peak memory consumption was 332.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L49]               int cleanupTimeShifts  =    4;
[L322]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L596]              int pumpRunning  =    0;
[L597]              int systemActive  =    1;
[L806]              int waterLevel  =    1;
[L807]              int methaneLevelCritical  =    0;
[L130]              int retValue_acc ;
[L131]              int tmp ;
[L135]  FCALL       select_helpers()
[L136]  FCALL       select_features()
[L137]  CALL, EXPR  valid_product()
[L796]              int retValue_acc ;
[L799]              retValue_acc = 1
[L800]              return (retValue_acc);
[L137]  RET, EXPR   valid_product()
[L137]              tmp = valid_product()
[L139]  COND TRUE   \read(tmp)
[L141]  FCALL       setup()
[L142]  CALL        runTest()
[L121]  CALL        test()
[L522]              int splverifierCounter ;
[L523]              int tmp ;
[L524]              int tmp___0 ;
[L525]              int tmp___1 ;
[L526]              int tmp___2 ;
[L529]              splverifierCounter = 0
[L531]  COND TRUE   1
[L533]  COND TRUE   splverifierCounter < 4
[L539]              tmp = __VERIFIER_nondet_int()
[L541]  COND TRUE   \read(tmp)
[L543]  CALL        waterRise()
[L824]  COND TRUE   waterLevel < 2
[L825]              waterLevel = waterLevel + 1
[L543]  RET         waterRise()
[L549]              tmp___0 = __VERIFIER_nondet_int()
[L551]  COND FALSE  !(\read(tmp___0))
[L559]              tmp___2 = __VERIFIER_nondet_int()
[L561]  COND FALSE  !(\read(tmp___2))
[L567]              tmp___1 = __VERIFIER_nondet_int()
[L569]  COND FALSE  !(\read(tmp___1))
[L578]  CALL        timeShift()
[L604]  COND FALSE  !(\read(pumpRunning))
[L611]  COND TRUE   \read(systemActive)
[L613]  CALL        processEnvironment()
[L633]              int tmp ;
[L636]  COND FALSE  !(\read(pumpRunning))
[L651]  FCALL       processEnvironment__wrappee__methaneQuery()
[L613]  RET         processEnvironment()
[L619]  CALL        __utac_acc__Specification3_spec__1()
[L887]              int tmp ;
[L888]              int tmp___0 ;
[L889]              int tmp___1 ;
[L893]  CALL, EXPR  isMethaneLevelCritical()
[L845]              int retValue_acc ;
[L848]              retValue_acc = methaneLevelCritical
[L849]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND FALSE  !(\read(tmp))
[L899]  CALL, EXPR  getWaterLevel()
[L877]              int retValue_acc ;
[L880]              retValue_acc = waterLevel
[L881]              return (retValue_acc);
[L899]  RET, EXPR   getWaterLevel()
[L899]              tmp___0 = getWaterLevel()
[L901]  COND TRUE   tmp___0 == 2
[L903]  CALL, EXPR  isPumpRunning()
[L702]              int retValue_acc ;
[L705]              retValue_acc = pumpRunning
[L706]              return (retValue_acc);
[L903]  RET, EXPR   isPumpRunning()
[L903]              tmp___1 = isPumpRunning()
[L905]  COND FALSE  !(\read(tmp___1))
[L909]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 253 SDtfs, 465 SDslu, 272 SDs, 0 SdLazy, 1016 SolverSat, 288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred 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, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 33580 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...