/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SHALLOWEST --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 language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-27 03:33:37,898 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-27 03:33:37,901 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-27 03:33:37,949 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-27 03:33:37,950 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-27 03:33:37,957 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-27 03:33:37,960 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-27 03:33:37,965 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-27 03:33:37,969 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-27 03:33:37,975 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-27 03:33:37,976 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-27 03:33:37,978 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-27 03:33:37,978 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-27 03:33:37,982 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-27 03:33:37,985 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-27 03:33:37,988 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-27 03:33:37,989 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-27 03:33:37,993 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-27 03:33:38,000 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-27 03:33:38,008 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-27 03:33:38,011 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-27 03:33:38,013 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-27 03:33:38,014 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-27 03:33:38,017 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-27 03:33:38,026 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-27 03:33:38,027 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-27 03:33:38,027 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-27 03:33:38,030 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-27 03:33:38,030 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-27 03:33:38,032 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-27 03:33:38,032 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-27 03:33:38,033 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-27 03:33:38,035 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-27 03:33:38,036 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-27 03:33:38,037 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-27 03:33:38,038 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-27 03:33:38,038 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-27 03:33:38,039 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-27 03:33:38,039 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-27 03:33:38,040 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-27 03:33:38,041 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-27 03:33:38,048 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
[2020-10-27 03:33:38,117 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-27 03:33:38,117 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-27 03:33:38,119 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-27 03:33:38,119 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-27 03:33:38,120 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-27 03:33:38,120 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-27 03:33:38,120 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-27 03:33:38,120 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-27 03:33:38,120 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-27 03:33:38,121 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-27 03:33:38,121 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-27 03:33:38,121 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-27 03:33:38,121 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-27 03:33:38,121 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-27 03:33:38,122 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-27 03:33:38,122 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-27 03:33:38,122 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-27 03:33:38,122 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-27 03:33:38,123 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-27 03:33:38,123 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-27 03:33:38,123 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-27 03:33:38,123 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:33:38,123 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-27 03:33:38,124 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-27 03:33:38,124 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-27 03:33:38,124 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-27 03:33:38,124 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-27 03:33:38,125 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-27 03:33:38,125 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-27 03:33:38,125 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true;
[2020-10-27 03:33:38,490 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-27 03:33:38,524 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-27 03:33:38,528 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-27 03:33:38,529 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-27 03:33:38,535 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-27 03:33:38,537 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-10-27 03:33:38,629 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/972c4ea05/6e5dc34407664504b23d05c4a6bdb7fa/FLAGa6865f0d1
[2020-10-27 03:33:39,324 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-27 03:33:39,328 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-10-27 03:33:39,355 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/972c4ea05/6e5dc34407664504b23d05c4a6bdb7fa/FLAGa6865f0d1
[2020-10-27 03:33:39,618 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/972c4ea05/6e5dc34407664504b23d05c4a6bdb7fa
[2020-10-27 03:33:39,621 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-27 03:33:39,630 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-27 03:33:39,634 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-27 03:33:39,634 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-27 03:33:39,638 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-27 03:33:39,639 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:39" (1/1) ...
[2020-10-27 03:33:39,651 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255b7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:39, skipping insertion in model container
[2020-10-27 03:33:39,651 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:39" (1/1) ...
[2020-10-27 03:33:39,662 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-27 03:33:39,732 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-27 03:33:40,076 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:33:40,099 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-27 03:33:40,209 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:33:40,240 INFO  L208         MainTranslator]: Completed translation
[2020-10-27 03:33:40,241 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40 WrapperNode
[2020-10-27 03:33:40,241 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-27 03:33:40,242 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-27 03:33:40,242 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-27 03:33:40,243 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-27 03:33:40,257 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,257 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,276 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,276 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,310 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,328 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,338 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (1/1) ...
[2020-10-27 03:33:40,351 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-27 03:33:40,355 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-27 03:33:40,356 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-27 03:33:40,356 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-27 03:33:40,357 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (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
[2020-10-27 03:33:40,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-27 03:33:40,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-27 03:33:40,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-27 03:33:40,428 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-27 03:33:40,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-27 03:33:40,430 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-27 03:33:40,431 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-27 03:33:40,431 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-27 03:33:40,431 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-27 03:33:40,431 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-27 03:33:40,431 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-27 03:33:40,431 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-27 03:33:40,432 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-27 03:33:40,433 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-27 03:33:40,434 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-27 03:33:40,435 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-27 03:33:40,436 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-27 03:33:40,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-27 03:33:40,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-27 03:33:40,438 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-27 03:33:40,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-27 03:33:41,637 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-27 03:33:41,637 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-27 03:33:41,639 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:41 BoogieIcfgContainer
[2020-10-27 03:33:41,640 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-27 03:33:41,642 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-27 03:33:41,642 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-27 03:33:41,646 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-27 03:33:41,646 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:33:39" (1/3) ...
[2020-10-27 03:33:41,647 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb73910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:41, skipping insertion in model container
[2020-10-27 03:33:41,647 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:40" (2/3) ...
[2020-10-27 03:33:41,647 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb73910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:41, skipping insertion in model container
[2020-10-27 03:33:41,648 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:41" (3/3) ...
[2020-10-27 03:33:41,649 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c
[2020-10-27 03:33:41,662 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-27 03:33:41,667 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-27 03:33:41,680 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-27 03:33:41,709 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-27 03:33:41,709 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-27 03:33:41,709 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-27 03:33:41,709 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-27 03:33:41,709 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-27 03:33:41,710 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-27 03:33:41,710 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-27 03:33:41,710 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-27 03:33:41,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 137 states.
[2020-10-27 03:33:41,741 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-27 03:33:41,741 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:33:41,742 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-27 03:33:41,743 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:33:41,749 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:33:41,749 INFO  L82        PathProgramCache]: Analyzing trace with hash -1411659746, now seen corresponding path program 1 times
[2020-10-27 03:33:41,759 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:33:41,759 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186714326]
[2020-10-27 03:33:41,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:33:42,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:42,155 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:42,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:42,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:45,387 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:45,388 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-27 03:33:45,388 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-27 03:33:45,388 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3334
[2020-10-27 03:33:45,392 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:45,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-27 03:33:45,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:45,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-27 03:33:45,395 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-27 03:33:45,910 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:33:45,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:33:45,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:45,964 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:46,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-10-27 03:33:46,052 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:33:46,060 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-10-27 03:33:46,095 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:33:46,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,099 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,103 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:46,103 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:46,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,106 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:33:46,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,112 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,115 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,115 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:46,115 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,116 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:33:46,116 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,116 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:46,118 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-27 03:33:46,120 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:33:46,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,131 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,132 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:46,132 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,132 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:33:46,132 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:33:46,133 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:33:46,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,151 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,151 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:46,152 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,152 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:33:46,153 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,153 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,153 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,153 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:46,153 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,156 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-27 03:33:46,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,168 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:46,168 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:33:46,169 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:46,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:33:46,170 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:33:46,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,185 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,185 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:46,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-27 03:33:46,188 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-27 03:33:46,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:46,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:33:46,188 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-27 03:33:46,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:46,262 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:46,264 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:46,264 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:46,264 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:46,264 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:33:46,265 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:46,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:33:46,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:46,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:33:46,265 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:46,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:33:46,286 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186714326]
[2020-10-27 03:33:46,289 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:33:46,289 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-27 03:33:46,290 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929626249]
[2020-10-27 03:33:46,295 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-27 03:33:46,296 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:33:46,310 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-27 03:33:46,311 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-27 03:33:46,313 INFO  L87              Difference]: Start difference. First operand 137 states. Second operand 8 states.
[2020-10-27 03:33:46,976 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:33:48,151 WARN  L193               SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205
[2020-10-27 03:33:49,103 WARN  L193               SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 206
[2020-10-27 03:33:49,660 WARN  L193               SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:33:50,093 WARN  L193               SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:33:50,558 WARN  L193               SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-10-27 03:33:51,054 WARN  L193               SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-10-27 03:33:51,470 WARN  L193               SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-10-27 03:33:51,868 WARN  L193               SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-10-27 03:33:52,459 WARN  L193               SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:33:53,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:33:53,735 INFO  L93              Difference]: Finished difference Result 363 states and 515 transitions.
[2020-10-27 03:33:53,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2020-10-27 03:33:53,742 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 53
[2020-10-27 03:33:53,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:33:53,757 INFO  L225             Difference]: With dead ends: 363
[2020-10-27 03:33:53,757 INFO  L226             Difference]: Without dead ends: 239
[2020-10-27 03:33:53,770 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306
[2020-10-27 03:33:53,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2020-10-27 03:33:53,949 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 206.
[2020-10-27 03:33:53,950 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 206 states.
[2020-10-27 03:33:53,960 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions.
[2020-10-27 03:33:53,965 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 53
[2020-10-27 03:33:53,966 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:33:53,966 INFO  L481      AbstractCegarLoop]: Abstraction has 206 states and 260 transitions.
[2020-10-27 03:33:53,966 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-27 03:33:53,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions.
[2020-10-27 03:33:53,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-27 03:33:53,981 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:33:53,982 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]
[2020-10-27 03:33:53,982 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-27 03:33:53,982 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:33:53,984 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:33:53,984 INFO  L82        PathProgramCache]: Analyzing trace with hash -654935058, now seen corresponding path program 1 times
[2020-10-27 03:33:53,985 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:33:53,985 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669187534]
[2020-10-27 03:33:53,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:33:54,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,050 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 96
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 243
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-10-27 03:33:54,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,642 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:33:54,643 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:33:54,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,679 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,765 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,765 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,766 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-10-27 03:33:54,766 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:33:54,767 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:33:54,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,802 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:54,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:33:54,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,808 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,810 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,810 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:54,810 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,810 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:33:54,811 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:54,811 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:33:54,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:33:54,824 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,826 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:33:54,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,833 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,834 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:33:54,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,834 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-27 03:33:54,834 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,834 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:33:54,835 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,848 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-27 03:33:54,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,853 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,857 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:33:54,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:33:54,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:33:54,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,862 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-10-27 03:33:54,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,868 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,869 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,870 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,870 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,870 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:33:54,871 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:33:54,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:54,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:33:54,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,874 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2020-10-27 03:33:54,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,878 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:33:54,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:54,880 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:33:54,880 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,881 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2020-10-27 03:33:54,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:33:54,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:33:54,890 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:33:54,894 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:33:54,894 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:33:54,894 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:33:54,895 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:33:54,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:33:54,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:33:54,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:33:54,895 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:33:54,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:33:54,910 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669187534]
[2020-10-27 03:33:54,910 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:33:54,910 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-10-27 03:33:54,911 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861176103]
[2020-10-27 03:33:54,914 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-27 03:33:54,914 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:33:54,915 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-27 03:33:54,915 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-10-27 03:33:54,915 INFO  L87              Difference]: Start difference. First operand 206 states and 260 transitions. Second operand 6 states.
[2020-10-27 03:33:55,398 WARN  L193               SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:33:56,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:33:56,225 INFO  L93              Difference]: Finished difference Result 413 states and 563 transitions.
[2020-10-27 03:33:56,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-27 03:33:56,226 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 62
[2020-10-27 03:33:56,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:33:56,230 INFO  L225             Difference]: With dead ends: 413
[2020-10-27 03:33:56,230 INFO  L226             Difference]: Without dead ends: 231
[2020-10-27 03:33:56,233 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2020-10-27 03:33:56,234 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 231 states.
[2020-10-27 03:33:56,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 206.
[2020-10-27 03:33:56,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 206 states.
[2020-10-27 03:33:56,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 255 transitions.
[2020-10-27 03:33:56,321 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 255 transitions. Word has length 62
[2020-10-27 03:33:56,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:33:56,322 INFO  L481      AbstractCegarLoop]: Abstraction has 206 states and 255 transitions.
[2020-10-27 03:33:56,322 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-27 03:33:56,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 255 transitions.
[2020-10-27 03:33:56,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-10-27 03:33:56,324 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:33:56,325 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]
[2020-10-27 03:33:56,325 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-27 03:33:56,325 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:33:56,326 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:33:56,326 INFO  L82        PathProgramCache]: Analyzing trace with hash 337881242, now seen corresponding path program 1 times
[2020-10-27 03:33:56,326 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:33:56,326 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231414309]
[2020-10-27 03:33:56,327 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:33:56,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-27 03:33:56,387 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-27 03:33:56,387 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-27 03:33:56,392 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-27 03:33:56,417 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:33:56 BoogieIcfgContainer
[2020-10-27 03:33:56,417 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-27 03:33:56,420 INFO  L168              Benchmark]: Toolchain (without parser) took 16795.02 ms. Allocated memory was 157.3 MB in the beginning and 331.4 MB in the end (delta: 174.1 MB). Free memory was 132.1 MB in the beginning and 253.8 MB in the end (delta: -121.7 MB). Peak memory consumption was 52.8 MB. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,420 INFO  L168              Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 157.3 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,421 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 607.71 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 112.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,422 INFO  L168              Benchmark]: Boogie Preprocessor took 109.50 ms. Allocated memory is still 157.3 MB. Free memory was 112.2 MB in the beginning and 107.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,423 INFO  L168              Benchmark]: RCFGBuilder took 1284.42 ms. Allocated memory is still 157.3 MB. Free memory was 107.9 MB in the beginning and 89.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,424 INFO  L168              Benchmark]: TraceAbstraction took 14775.88 ms. Allocated memory was 157.3 MB in the beginning and 331.4 MB in the end (delta: 174.1 MB). Free memory was 88.8 MB in the beginning and 253.8 MB in the end (delta: -165.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB.
[2020-10-27 03:33:56,428 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.74 ms. Allocated memory is still 157.3 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 607.71 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 112.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 109.50 ms. Allocated memory is still 157.3 MB. Free memory was 112.2 MB in the beginning and 107.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1284.42 ms. Allocated memory is still 157.3 MB. Free memory was 107.9 MB in the beginning and 89.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 14775.88 ms. Allocated memory was 157.3 MB in the beginning and 331.4 MB in the end (delta: 174.1 MB). Free memory was 88.8 MB in the beginning and 253.8 MB in the end (delta: -165.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L50]               int pumpRunning  =    0;
[L51]               int systemActive  =    1;
[L309]              int cleanupTimeShifts  =    4;
[L405]              int waterLevel  =    1;
[L406]              int methaneLevelCritical  =    0;
[L654]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L382]              int retValue_acc ;
[L383]              int tmp ;
[L387]  FCALL       select_helpers()
[L388]  FCALL       select_features()
[L389]  CALL, EXPR  valid_product()
[L255]              int retValue_acc ;
[L258]              retValue_acc = 1
[L259]              return (retValue_acc);
[L389]  RET, EXPR   valid_product()
[L389]              tmp = valid_product()
[L391]  COND TRUE   \read(tmp)
[L393]  FCALL       setup()
[L394]  CALL        runTest()
[L376]  CALL        test()
[L162]              int splverifierCounter ;
[L163]              int tmp ;
[L164]              int tmp___0 ;
[L165]              int tmp___1 ;
[L166]              int tmp___2 ;
[L169]              splverifierCounter = 0
[L171]  COND TRUE   1
[L173]  COND TRUE   splverifierCounter < 4
[L179]              tmp = __VERIFIER_nondet_int()
[L181]  COND TRUE   \read(tmp)
[L183]  CALL        waterRise()
[L423]  COND TRUE   waterLevel < 2
[L424]              waterLevel = waterLevel + 1
[L183]  RET         waterRise()
[L189]              tmp___0 = __VERIFIER_nondet_int()
[L191]  COND FALSE  !(\read(tmp___0))
[L199]              tmp___2 = __VERIFIER_nondet_int()
[L201]  COND TRUE   \read(tmp___2)
[L214]  CALL        timeShift()
[L58]   COND FALSE  !(\read(pumpRunning))
[L65]   COND TRUE   \read(systemActive)
[L67]   FCALL       processEnvironment()
[L73]   CALL        __utac_acc__Specification3_spec__1()
[L267]              int tmp ;
[L268]              int tmp___0 ;
[L269]              int tmp___1 ;
[L273]  CALL, EXPR  isMethaneLevelCritical()
[L444]              int retValue_acc ;
[L447]              retValue_acc = methaneLevelCritical
[L448]              return (retValue_acc);
[L273]  RET, EXPR   isMethaneLevelCritical()
[L273]              tmp = isMethaneLevelCritical()
[L275]  COND FALSE  !(\read(tmp))
[L279]  CALL, EXPR  getWaterLevel()
[L476]              int retValue_acc ;
[L479]              retValue_acc = waterLevel
[L480]              return (retValue_acc);
[L279]  RET, EXPR   getWaterLevel()
[L279]              tmp___0 = getWaterLevel()
[L281]  COND TRUE   tmp___0 == 2
[L283]  CALL, EXPR  isPumpRunning()
[L113]              int retValue_acc ;
[L116]              retValue_acc = pumpRunning
[L117]              return (retValue_acc);
[L283]  RET, EXPR   isPumpRunning()
[L283]              tmp___1 = isPumpRunning()
[L285]  COND FALSE  !(\read(tmp___1))
[L289]  CALL        __automaton_fail()
[L304]  CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product01.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 209 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 180 SDtfs, 536 SDslu, 216 SDs, 0 SdLazy, 764 SolverSat, 293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=1, 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, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 38186 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...