/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:20:57,925 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:20:57,930 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:20:57,975 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:20:57,976 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:20:57,989 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:20:57,990 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:20:57,994 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:20:57,997 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:20:58,001 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:20:58,002 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:20:58,004 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:20:58,004 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:20:58,007 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:20:58,010 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:20:58,012 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:20:58,014 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:20:58,015 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:20:58,017 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:20:58,026 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:20:58,028 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:20:58,030 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:20:58,031 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:20:58,033 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:20:58,036 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:20:58,037 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:20:58,037 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:20:58,040 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:20:58,040 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:20:58,041 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:20:58,041 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:20:58,042 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:20:58,045 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:20:58,046 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:20:58,048 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:20:58,048 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:20:58,049 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:20:58,049 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:20:58,049 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:20:58,051 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:20:58,052 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:20:58,053 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:20:58,098 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:20:58,098 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:20:58,101 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:20:58,101 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:20:58,101 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:20:58,102 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:20:58,102 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:20:58,102 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:20:58,103 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:20:58,103 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:20:58,104 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:20:58,104 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:20:58,104 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:20:58,105 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:20:58,105 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:20:58,105 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:20:58,105 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:20:58,106 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:20:58,106 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:20:58,106 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:20:58,106 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:20:58,107 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:20:58,107 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:20:58,107 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:20:58,107 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:20:58,107 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:20:58,108 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:20:58,108 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:20:58,108 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:20:58,108 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:20:58,616 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:20:58,643 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:20:58,648 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:20:58,651 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:20:58,652 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:20:58,653 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-24 21:20:58,752 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f7c7461/6cdfe07709a34aefb80322b4c4ac5fa6/FLAGbf7c4af58
[2020-09-24 21:20:59,373 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:20:59,374 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-24 21:20:59,389 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f7c7461/6cdfe07709a34aefb80322b4c4ac5fa6/FLAGbf7c4af58
[2020-09-24 21:20:59,646 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f7c7461/6cdfe07709a34aefb80322b4c4ac5fa6
[2020-09-24 21:20:59,660 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:20:59,666 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:20:59,667 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:59,667 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:20:59,671 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:20:59,673 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:59" (1/1) ...
[2020-09-24 21:20:59,677 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:59, skipping insertion in model container
[2020-09-24 21:20:59,677 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:59" (1/1) ...
[2020-09-24 21:20:59,686 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:20:59,739 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:00,229 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:00,249 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:00,335 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:00,371 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:00,371 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00 WrapperNode
[2020-09-24 21:21:00,372 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:00,373 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:00,373 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:00,373 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:00,392 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,392 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,414 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,415 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,451 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,465 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,471 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
[2020-09-24 21:21:00,479 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:00,480 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:00,480 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:00,480 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:00,482 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:00,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:00,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:00,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:00,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:00,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:00,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:00,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:00,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:00,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:00,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:00,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:00,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:00,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:00,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:00,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:00,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:00,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:00,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:00,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:00,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:00,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:00,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:00,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:00,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:00,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:00,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:00,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:00,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:00,586 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:00,586 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:00,586 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:00,587 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:00,588 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:00,589 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:00,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:00,591 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 21:21:00,593 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:00,593 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:00,593 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:00,593 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:00,593 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:00,594 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:00,594 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:00,594 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:01,695 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:01,696 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:01,703 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:01 BoogieIcfgContainer
[2020-09-24 21:21:01,703 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:01,704 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:01,704 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:01,708 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:01,709 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:59" (1/3) ...
[2020-09-24 21:21:01,709 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe3c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:01, skipping insertion in model container
[2020-09-24 21:21:01,710 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:00" (2/3) ...
[2020-09-24 21:21:01,710 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe3c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:01, skipping insertion in model container
[2020-09-24 21:21:01,710 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:01" (3/3) ...
[2020-09-24 21:21:01,713 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c
[2020-09-24 21:21:01,724 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:01,736 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:01,758 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:01,789 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:01,790 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:01,790 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:01,790 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:01,790 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:01,790 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:01,790 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:01,791 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:01,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states.
[2020-09-24 21:21:01,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:01,835 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:01,837 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:01,837 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:01,845 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:01,846 INFO  L82        PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times
[2020-09-24 21:21:01,857 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:01,858 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19416243]
[2020-09-24 21:21:01,858 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:02,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:02,363 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:02,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:04,038 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:07,254 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:07,255 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:07,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:07,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5020
[2020-09-24 21:21:07,258 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:07,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:07,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 21:21:07,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 21:21:07,260 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 21:21:07,812 WARN  L193               SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:07,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:07,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:07,903 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,155 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:08,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 293
[2020-09-24 21:21:08,157 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 21:21:08,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:08,255 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:08,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,264 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:08,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:08,272 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:08,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:08,276 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:08,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,278 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,282 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,282 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:08,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,283 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:08,283 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:08,284 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:08,286 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:08,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,301 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,301 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:08,301 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,301 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:21:08,302 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:08,303 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:08,318 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:08,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,329 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:08,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:08,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:08,332 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:08,337 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:08,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:08,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:08,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:08,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:08,349 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:08,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,361 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:08,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:08,362 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:08,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:08,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:08,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:08,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:08,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:08,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:08,399 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:08,400 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:08,400 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:08,400 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:08,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:08,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:08,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:08,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:08,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:08,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:08,445 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19416243]
[2020-09-24 21:21:08,447 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:08,448 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 21:21:08,449 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245314333]
[2020-09-24 21:21:08,460 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 21:21:08,460 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:08,478 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 21:21:08,479 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 21:21:08,482 INFO  L87              Difference]: Start difference. First operand 272 states. Second operand 8 states.
[2020-09-24 21:21:09,217 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:11,249 WARN  L193               SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:11,723 WARN  L193               SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:12,242 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:12,699 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:12,978 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:13,258 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:13,550 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:14,268 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:14,270 INFO  L93              Difference]: Finished difference Result 466 states and 571 transitions.
[2020-09-24 21:21:14,271 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 21:21:14,273 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 21:21:14,274 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:14,307 INFO  L225             Difference]: With dead ends: 466
[2020-09-24 21:21:14,307 INFO  L226             Difference]: Without dead ends: 323
[2020-09-24 21:21:14,315 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 21:21:14,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-24 21:21:14,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290.
[2020-09-24 21:21:14,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 21:21:14,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions.
[2020-09-24 21:21:14,475 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 153
[2020-09-24 21:21:14,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:14,476 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 325 transitions.
[2020-09-24 21:21:14,476 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 21:21:14,477 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions.
[2020-09-24 21:21:14,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 21:21:14,484 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:14,485 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:14,485 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:14,485 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:14,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:14,486 INFO  L82        PathProgramCache]: Analyzing trace with hash -1230628687, now seen corresponding path program 1 times
[2020-09-24 21:21:14,486 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:14,486 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655789258]
[2020-09-24 21:21:14,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:14,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:14,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,005 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,005 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 21:21:15,005 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,006 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 442
[2020-09-24 21:21:15,006 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:15,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 21:21:15,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:21:15,007 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,285 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:15,286 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:15,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:15,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 148
[2020-09-24 21:21:15,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:15,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,488 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:15,488 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,488 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:15,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,490 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:15,491 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:15,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,493 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,495 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,495 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:15,495 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,495 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:15,496 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,499 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:21:15,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:15,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,519 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,519 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:15,520 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,520 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-24 21:21:15,520 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,521 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,521 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,523 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:15,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,524 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,526 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,526 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:15,527 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,527 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:15,527 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,528 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,528 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,528 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:15,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 21:21:15,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,538 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,539 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,540 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:21:15,540 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,540 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:15,540 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,541 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 21:21:15,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,562 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,565 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,565 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 21:21:15,566 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,566 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:15,566 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:15,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:15,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 21:21:15,571 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:21:15,573 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 21:21:15,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,576 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,577 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:15,578 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:15,578 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:15,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,585 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 21:21:15,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,588 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:15,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:15,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:15,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:15,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 21:21:15,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:15,596 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:15,597 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:15,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:15,601 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:15,602 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:15,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:15,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:15,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:15,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:15,648 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655789258]
[2020-09-24 21:21:15,649 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:15,649 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 21:21:15,650 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610769439]
[2020-09-24 21:21:15,654 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 21:21:15,654 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:15,655 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 21:21:15,655 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 21:21:15,655 INFO  L87              Difference]: Start difference. First operand 290 states and 325 transitions. Second operand 6 states.
[2020-09-24 21:21:16,286 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:17,244 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:17,244 INFO  L93              Difference]: Finished difference Result 545 states and 668 transitions.
[2020-09-24 21:21:17,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 21:21:17,245 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 21:21:17,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:17,256 INFO  L225             Difference]: With dead ends: 545
[2020-09-24 21:21:17,256 INFO  L226             Difference]: Without dead ends: 365
[2020-09-24 21:21:17,262 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 21:21:17,267 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2020-09-24 21:21:17,361 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 290.
[2020-09-24 21:21:17,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 21:21:17,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 322 transitions.
[2020-09-24 21:21:17,366 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 322 transitions. Word has length 172
[2020-09-24 21:21:17,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:17,367 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 322 transitions.
[2020-09-24 21:21:17,367 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 21:21:17,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 322 transitions.
[2020-09-24 21:21:17,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-24 21:21:17,378 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:17,378 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:17,378 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:17,379 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:17,379 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:17,379 INFO  L82        PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times
[2020-09-24 21:21:17,379 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:17,380 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741394903]
[2020-09-24 21:21:17,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:17,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:17,477 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:17,477 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:17,484 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:17,523 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:17 BoogieIcfgContainer
[2020-09-24 21:21:17,523 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:17,527 INFO  L168              Benchmark]: Toolchain (without parser) took 17864.20 ms. Allocated memory was 144.2 MB in the beginning and 450.9 MB in the end (delta: 306.7 MB). Free memory was 98.6 MB in the beginning and 344.8 MB in the end (delta: -246.1 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,528 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,529 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 705.19 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 98.0 MB in the beginning and 170.1 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,531 INFO  L168              Benchmark]: Boogie Preprocessor took 107.03 ms. Allocated memory is still 201.3 MB. Free memory was 170.1 MB in the beginning and 166.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,533 INFO  L168              Benchmark]: RCFGBuilder took 1223.07 ms. Allocated memory was 201.3 MB in the beginning and 230.7 MB in the end (delta: 29.4 MB). Free memory was 165.9 MB in the beginning and 181.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,540 INFO  L168              Benchmark]: TraceAbstraction took 15819.18 ms. Allocated memory was 230.7 MB in the beginning and 450.9 MB in the end (delta: 220.2 MB). Free memory was 179.7 MB in the beginning and 344.8 MB in the end (delta: -165.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:17,555 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 705.19 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 98.0 MB in the beginning and 170.1 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 107.03 ms. Allocated memory is still 201.3 MB. Free memory was 170.1 MB in the beginning and 166.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1223.07 ms. Allocated memory was 201.3 MB in the beginning and 230.7 MB in the end (delta: 29.4 MB). Free memory was 165.9 MB in the beginning and 181.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15819.18 ms. Allocated memory was 230.7 MB in the beginning and 450.9 MB in the end (delta: 220.2 MB). Free memory was 179.7 MB in the beginning and 344.8 MB in the end (delta: -165.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L84]               int waterLevel  =    1;
[L85]               int methaneLevelCritical  =    0;
[L342]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L781]              int cleanupTimeShifts  =    4;
[L854]              int retValue_acc ;
[L855]              int tmp ;
[L859]  FCALL       select_helpers()
[L860]  FCALL       select_features()
[L861]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L861]  RET, EXPR   valid_product()
[L861]              tmp = valid_product()
[L863]  COND TRUE   \read(tmp)
[L865]  FCALL       setup()
[L866]  CALL        runTest()
[L848]  CALL        test()
[L543]              int splverifierCounter ;
[L544]              int tmp ;
[L545]              int tmp___0 ;
[L546]              int tmp___1 ;
[L547]              int tmp___2 ;
[L550]              splverifierCounter = 0
[L552]  COND TRUE   1
[L554]  COND TRUE   splverifierCounter < 4
[L560]              tmp = __VERIFIER_nondet_int()
[L562]  COND TRUE   \read(tmp)
[L564]  CALL        waterRise()
[L102]  COND TRUE   waterLevel < 2
[L103]              waterLevel = waterLevel + 1
[L564]  RET         waterRise()
[L570]              tmp___0 = __VERIFIER_nondet_int()
[L572]  COND FALSE  !(\read(tmp___0))
[L580]              tmp___2 = __VERIFIER_nondet_int()
[L582]  COND TRUE   \read(tmp___2)
[L584]  CALL        startSystem()
[L742]              systemActive = 1
[L584]  RET         startSystem()
[L597]  CALL        timeShift()
[L621]  COND FALSE  !(\read(pumpRunning))
[L628]  COND TRUE   \read(systemActive)
[L630]  FCALL       processEnvironment()
[L636]  CALL        __utac_acc__Specification3_spec__1()
[L748]              int tmp ;
[L749]              int tmp___0 ;
[L750]              int tmp___1 ;
[L754]  CALL, EXPR  isMethaneLevelCritical()
[L123]              int retValue_acc ;
[L126]              retValue_acc = methaneLevelCritical
[L127]              return (retValue_acc);
[L754]  RET, EXPR   isMethaneLevelCritical()
[L754]              tmp = isMethaneLevelCritical()
[L756]  COND FALSE  !(\read(tmp))
[L760]  CALL, EXPR  getWaterLevel()
[L155]              int retValue_acc ;
[L158]              retValue_acc = waterLevel
[L159]              return (retValue_acc);
[L760]  RET, EXPR   getWaterLevel()
[L760]              tmp___0 = getWaterLevel()
[L762]  COND TRUE   tmp___0 == 2
[L764]  CALL, EXPR  isPumpRunning()
[L694]              int retValue_acc ;
[L697]              retValue_acc = pumpRunning
[L698]              return (retValue_acc);
[L764]  RET, EXPR   isPumpRunning()
[L764]              tmp___1 = isPumpRunning()
[L766]  COND FALSE  !(\read(tmp___1))
[L770]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 845 SDslu, 716 SDs, 0 SdLazy, 1152 SolverSat, 262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred 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, 108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 129048 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...