/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_product44.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:22:03,020 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:22:03,025 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:22:03,070 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:22:03,071 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:22:03,079 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:22:03,081 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:22:03,085 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:22:03,089 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:22:03,092 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:22:03,093 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:22:03,094 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:22:03,094 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:22:03,097 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:22:03,100 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:22:03,102 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:22:03,104 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:22:03,106 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:22:03,107 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:22:03,117 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:22:03,120 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:22:03,121 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:22:03,123 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:22:03,123 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:22:03,136 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:22:03,136 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:22:03,137 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:22:03,144 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:22:03,145 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:22:03,146 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:22:03,146 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:22:03,151 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:22:03,152 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:22:03,153 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:22:03,155 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:22:03,155 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:22:03,156 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:22:03,156 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:22:03,157 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:22:03,158 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:22:03,160 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:22:03,161 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 21:22:03,205 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:22:03,205 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:22:03,207 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:22:03,208 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:22:03,208 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:22:03,208 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:22:03,209 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:22:03,209 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:22:03,209 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:22:03,209 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:22:03,210 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:22:03,210 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:22:03,211 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:22:03,211 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:22:03,211 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:22:03,211 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:22:03,212 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:22:03,212 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:22:03,212 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:22:03,212 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:22:03,212 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:22:03,213 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:22:03,213 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:22:03,213 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:22:03,213 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:22:03,213 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:22:03,214 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:22:03,214 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:22:03,214 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:22:03,214 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 21:22:03,664 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:22:03,687 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:22:03,692 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:22:03,694 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:22:03,695 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:22:03,696 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-24 21:22:03,791 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0598c50/b92d0286e20b41cd823bd5829bf1c21f/FLAGa6727e67b
[2020-09-24 21:22:04,407 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:22:04,408 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-24 21:22:04,425 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0598c50/b92d0286e20b41cd823bd5829bf1c21f/FLAGa6727e67b
[2020-09-24 21:22:04,700 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0598c50/b92d0286e20b41cd823bd5829bf1c21f
[2020-09-24 21:22:04,717 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:22:04,724 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:22:04,728 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:22:04,728 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:22:04,733 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:22:04,734 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:04" (1/1) ...
[2020-09-24 21:22:04,739 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4700e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:04, skipping insertion in model container
[2020-09-24 21:22:04,739 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:04" (1/1) ...
[2020-09-24 21:22:04,750 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:22:04,832 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:22:05,358 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:22:05,374 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:22:05,452 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:22:05,489 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:22:05,489 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05 WrapperNode
[2020-09-24 21:22:05,490 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:22:05,491 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:22:05,491 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:22:05,491 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:22:05,509 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,509 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,538 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,539 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,592 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,605 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,610 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (1/1) ...
[2020-09-24 21:22:05,618 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:22:05,619 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:22:05,619 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:22:05,619 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:22:05,621 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (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 21:22:05,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:22:05,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:22:05,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:22:05,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:22:05,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:22:05,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:22:05,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:22:05,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:22:05,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:22:05,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:22:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:22:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:22:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:22:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:22:05,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:22:05,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 21:22:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:22:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:22:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:22:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:22:05,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:22:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:22:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:22:05,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:22:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:22:05,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 21:22:05,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 21:22:05,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 21:22:05,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:22:05,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:22:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:22:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:22:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:22:05,724 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:22:05,725 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:22:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:22:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:22:05,726 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:22:05,727 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:22:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:22:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:22:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:22:05,728 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:22:05,729 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:22:05,730 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:22:05,731 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:22:05,732 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:22:05,732 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:22:05,732 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:22:05,732 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:22:05,732 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:22:05,733 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:22:05,733 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:22:05,733 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:22:05,733 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:22:05,733 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:22:05,734 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:22:05,734 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:22:05,734 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:22:05,735 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:22:05,736 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:22:05,736 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:22:07,039 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:22:07,039 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:22:07,047 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:07 BoogieIcfgContainer
[2020-09-24 21:22:07,047 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:22:07,048 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:22:07,049 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:22:07,052 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:22:07,053 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:22:04" (1/3) ...
[2020-09-24 21:22:07,054 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:07, skipping insertion in model container
[2020-09-24 21:22:07,054 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:05" (2/3) ...
[2020-09-24 21:22:07,054 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:07, skipping insertion in model container
[2020-09-24 21:22:07,055 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:07" (3/3) ...
[2020-09-24 21:22:07,057 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c
[2020-09-24 21:22:07,070 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:22:07,082 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:22:07,105 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:22:07,136 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:22:07,137 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:22:07,137 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:22:07,137 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:22:07,137 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:22:07,137 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:22:07,137 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:22:07,137 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:22:07,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 319 states.
[2020-09-24 21:22:07,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:22:07,185 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:22:07,187 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 21:22:07,187 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:22:07,195 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:22:07,196 INFO  L82        PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times
[2020-09-24 21:22:07,207 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:22:07,208 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81926323]
[2020-09-24 21:22:07,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:22:07,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:07,746 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:07,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:09,666 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:12,598 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:12,598 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:22:12,599 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:22:12,599 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5040
[2020-09-24 21:22:12,603 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:12,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:22:12,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 21:22:12,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 21:22:12,605 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:22:13,187 WARN  L193               SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:22:13,192 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:22:13,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,567 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,567 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:22:13,567 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,568 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 316
[2020-09-24 21:22:13,568 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 21:22:13,569 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:22:13,662 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:22:13,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,672 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:13,672 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,673 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:22:13,673 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:22:13,674 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,678 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:22:13,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,681 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,688 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:13,689 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:22:13,689 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:22:13,690 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,692 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:22:13,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,697 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,708 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,708 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:13,709 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,709 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:22:13,709 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:22:13,710 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:22:13,713 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:22:13,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,717 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,721 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:13,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:22:13,722 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:22:13,723 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:22:13,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,730 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,733 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,734 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:13,734 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,734 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:22:13,734 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:13,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:22:13,735 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,737 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:22:13,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,752 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:13,753 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,753 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:22:13,753 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:22:13,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:13,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:22:13,754 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,784 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:22:13,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:13,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:13,790 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:13,791 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:13,791 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:13,791 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:22:13,792 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:13,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:13,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:22:13,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:13,792 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:13,833 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 21:22:13,834 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81926323]
[2020-09-24 21:22:13,837 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:22:13,838 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 21:22:13,839 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93693017]
[2020-09-24 21:22:13,853 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 21:22:13,854 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:22:13,876 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 21:22:13,879 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 21:22:13,883 INFO  L87              Difference]: Start difference. First operand 319 states. Second operand 8 states.
[2020-09-24 21:22:14,635 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:22:16,144 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:22:16,507 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:22:16,894 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:22:17,335 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:22:17,659 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:22:18,348 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:22:18,688 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:22:20,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:22:20,179 INFO  L93              Difference]: Finished difference Result 676 states and 836 transitions.
[2020-09-24 21:22:20,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 21:22:20,186 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 21:22:20,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:22:20,220 INFO  L225             Difference]: With dead ends: 676
[2020-09-24 21:22:20,220 INFO  L226             Difference]: Without dead ends: 451
[2020-09-24 21:22:20,227 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 21:22:20,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 451 states.
[2020-09-24 21:22:20,363 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 400.
[2020-09-24 21:22:20,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 400 states.
[2020-09-24 21:22:20,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 444 transitions.
[2020-09-24 21:22:20,371 INFO  L78                 Accepts]: Start accepts. Automaton has 400 states and 444 transitions. Word has length 153
[2020-09-24 21:22:20,372 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:22:20,372 INFO  L479      AbstractCegarLoop]: Abstraction has 400 states and 444 transitions.
[2020-09-24 21:22:20,372 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 21:22:20,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 400 states and 444 transitions.
[2020-09-24 21:22:20,382 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 21:22:20,382 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:22:20,382 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 21:22:20,383 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:22:20,383 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:22:20,383 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:22:20,384 INFO  L82        PathProgramCache]: Analyzing trace with hash 1299075963, now seen corresponding path program 1 times
[2020-09-24 21:22:20,384 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:22:20,384 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236194498]
[2020-09-24 21:22:20,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:22:20,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:20,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:20,881 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:20,881 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 21:22:20,881 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:20,882 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 416
[2020-09-24 21:22:20,882 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:20,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:20,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 21:22:20,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:22:20,883 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,165 WARN  L193               SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:22:21,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:22:21,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,291 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,292 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:22:21,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,292 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 113
[2020-09-24 21:22:21,292 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,293 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,326 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:22:21,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,328 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,330 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,331 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:21,331 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,331 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,331 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,332 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:22:21,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,335 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,337 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,337 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:21,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,338 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,339 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,340 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:22:21,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:21,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:22:21,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,349 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:22:21,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,353 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:22:21,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,353 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,354 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,363 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 21:22:21,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,367 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,368 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:22:21,368 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,368 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:22:21,368 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 21:22:21,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,382 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,385 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,386 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 21:22:21,386 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,386 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:22:21,386 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:22:21,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:22:21,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 21:22:21,387 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,390 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 21:22:21,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,393 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:21,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,394 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:22:21,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,395 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,397 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 21:22:21,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,399 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,401 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:21,401 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:22:21,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:22:21,404 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 21:22:21,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:22:21,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:22:21,408 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:22:21,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:22:21,409 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:22:21,409 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:22:21,409 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:22:21,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:22:21,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:22:21,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:22:21,410 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:22:21,442 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 21:22:21,443 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236194498]
[2020-09-24 21:22:21,443 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:22:21,443 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 21:22:21,444 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167779453]
[2020-09-24 21:22:21,446 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 21:22:21,446 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:22:21,446 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 21:22:21,447 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 21:22:21,447 INFO  L87              Difference]: Start difference. First operand 400 states and 444 transitions. Second operand 6 states.
[2020-09-24 21:22:21,959 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:22:24,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:22:24,814 INFO  L93              Difference]: Finished difference Result 1187 states and 1457 transitions.
[2020-09-24 21:22:24,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 21:22:24,815 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 21:22:24,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:22:24,830 INFO  L225             Difference]: With dead ends: 1187
[2020-09-24 21:22:24,830 INFO  L226             Difference]: Without dead ends: 897
[2020-09-24 21:22:24,837 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 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 21:22:24,839 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 897 states.
[2020-09-24 21:22:24,959 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 661.
[2020-09-24 21:22:24,960 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 661 states.
[2020-09-24 21:22:24,964 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 746 transitions.
[2020-09-24 21:22:24,965 INFO  L78                 Accepts]: Start accepts. Automaton has 661 states and 746 transitions. Word has length 172
[2020-09-24 21:22:24,966 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:22:24,966 INFO  L479      AbstractCegarLoop]: Abstraction has 661 states and 746 transitions.
[2020-09-24 21:22:24,966 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 21:22:24,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 661 states and 746 transitions.
[2020-09-24 21:22:24,972 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 21:22:24,972 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:22:24,973 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:22:24,973 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:22:24,973 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:22:24,973 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:22:24,974 INFO  L82        PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times
[2020-09-24 21:22:24,974 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:22:24,974 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656686794]
[2020-09-24 21:22:24,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:22:25,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:22:25,050 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:22:25,050 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:22:25,056 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:22:25,085 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:22:25 BoogieIcfgContainer
[2020-09-24 21:22:25,085 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:22:25,088 INFO  L168              Benchmark]: Toolchain (without parser) took 20368.99 ms. Allocated memory was 137.9 MB in the beginning and 522.2 MB in the end (delta: 384.3 MB). Free memory was 100.1 MB in the beginning and 193.5 MB in the end (delta: -93.4 MB). Peak memory consumption was 290.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,089 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,090 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 762.45 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 166.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,091 INFO  L168              Benchmark]: Boogie Preprocessor took 127.44 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,092 INFO  L168              Benchmark]: RCFGBuilder took 1428.64 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 162.6 MB in the beginning and 171.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,093 INFO  L168              Benchmark]: TraceAbstraction took 18036.92 ms. Allocated memory was 231.2 MB in the beginning and 522.2 MB in the end (delta: 291.0 MB). Free memory was 171.5 MB in the beginning and 193.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 269.0 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:25,097 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 762.45 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 166.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 127.44 ms. Allocated memory is still 201.3 MB. Free memory was 166.8 MB in the beginning and 162.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1428.64 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 162.6 MB in the beginning and 171.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18036.92 ms. Allocated memory was 231.2 MB in the beginning and 522.2 MB in the end (delta: 291.0 MB). Free memory was 171.5 MB in the beginning and 193.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 269.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L185]              int waterLevel  =    1;
[L186]              int methaneLevelCritical  =    0;
[L492]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L693]              int pumpRunning  =    0;
[L694]              int systemActive  =    1;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L305]              int retValue_acc ;
[L308]              retValue_acc = 1
[L309]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L887]              int splverifierCounter ;
[L888]              int tmp ;
[L889]              int tmp___0 ;
[L890]              int tmp___1 ;
[L891]              int tmp___2 ;
[L894]              splverifierCounter = 0
[L896]  COND TRUE   1
[L898]  COND TRUE   splverifierCounter < 4
[L904]              tmp = __VERIFIER_nondet_int()
[L906]  COND TRUE   \read(tmp)
[L908]  CALL        waterRise()
[L203]  COND TRUE   waterLevel < 2
[L204]              waterLevel = waterLevel + 1
[L908]  RET         waterRise()
[L914]              tmp___0 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___0))
[L924]              tmp___2 = __VERIFIER_nondet_int()
[L926]  COND FALSE  !(\read(tmp___2))
[L932]              tmp___1 = __VERIFIER_nondet_int()
[L934]  COND TRUE   \read(tmp___1)
[L936]  CALL        stopSystem()
[L866]  COND FALSE  !(\read(pumpRunning))
[L873]              systemActive = 0
[L936]  RET         stopSystem()
[L943]  CALL        timeShift()
[L700]  COND FALSE  !(\read(pumpRunning))
[L707]  COND FALSE  !(\read(systemActive))
[L715]  CALL        __utac_acc__Specification3_spec__1()
[L149]              int tmp ;
[L150]              int tmp___0 ;
[L151]              int tmp___1 ;
[L155]  CALL, EXPR  isMethaneLevelCritical()
[L224]              int retValue_acc ;
[L227]              retValue_acc = methaneLevelCritical
[L228]              return (retValue_acc);
[L155]  RET, EXPR   isMethaneLevelCritical()
[L155]              tmp = isMethaneLevelCritical()
[L157]  COND FALSE  !(\read(tmp))
[L161]  CALL, EXPR  getWaterLevel()
[L256]              int retValue_acc ;
[L259]              retValue_acc = waterLevel
[L260]              return (retValue_acc);
[L161]  RET, EXPR   getWaterLevel()
[L161]              tmp___0 = getWaterLevel()
[L163]  COND TRUE   tmp___0 == 2
[L165]  CALL, EXPR  isPumpRunning()
[L799]              int retValue_acc ;
[L802]              retValue_acc = pumpRunning
[L803]              return (retValue_acc);
[L165]  RET, EXPR   isPumpRunning()
[L165]              tmp___1 = isPumpRunning()
[L167]  COND FALSE  !(\read(tmp___1))
[L171]  CALL        __automaton_fail()
[L318]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 575 SDtfs, 1123 SDslu, 804 SDs, 0 SdLazy, 1969 SolverSat, 411 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=661occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128744 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...