/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_product30.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:21:39,838 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:21:39,842 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:21:39,868 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:21:39,868 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:21:39,869 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:21:39,871 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:21:39,873 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:21:39,877 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:21:39,878 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:21:39,883 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:21:39,885 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:21:39,885 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:21:39,886 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:21:39,890 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:21:39,891 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:21:39,894 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:21:39,898 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:21:39,901 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:21:39,904 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:21:39,909 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:21:39,912 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:21:39,914 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:21:39,916 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:21:39,922 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:21:39,922 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:21:39,922 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:21:39,924 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:21:39,925 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:21:39,927 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:21:39,927 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:21:39,928 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:21:39,929 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:21:39,930 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:21:39,931 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:21:39,931 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:21:39,942 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:21:39,942 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:21:39,942 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-24 21:21:39,946 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:21:39,951 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 21:21:39,998 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:21:39,999 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:21:40,000 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:21:40,000 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:21:40,000 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:21:40,001 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:21:40,001 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:21:40,001 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:21:40,001 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:21:40,001 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:21:40,002 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:21:40,002 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:21:40,002 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:21:40,002 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:21:40,002 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:21:40,003 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:21:40,003 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:21:40,003 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:21:40,003 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:21:40,003 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:21:40,004 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:21:40,004 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:40,004 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:21:40,004 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:21:40,005 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:21:40,005 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:21:40,005 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:21:40,005 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:21:40,005 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:21:40,006 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 21:21:40,473 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:21:40,497 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:21:40,503 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:21:40,506 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:21:40,507 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:21:40,508 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-24 21:21:40,590 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdeb56cfd/97616b654d084282b7a5efe95c6bbfc0/FLAGce9c92d62
[2020-09-24 21:21:41,244 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:21:41,245 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-24 21:21:41,261 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdeb56cfd/97616b654d084282b7a5efe95c6bbfc0/FLAGce9c92d62
[2020-09-24 21:21:41,463 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdeb56cfd/97616b654d084282b7a5efe95c6bbfc0
[2020-09-24 21:21:41,476 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:21:41,482 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:21:41,483 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:41,483 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:21:41,489 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:21:41,490 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:41" (1/1) ...
[2020-09-24 21:21:41,495 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422405df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:41, skipping insertion in model container
[2020-09-24 21:21:41,495 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:41" (1/1) ...
[2020-09-24 21:21:41,505 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:21:41,582 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:42,080 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:42,103 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:42,192 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:42,232 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:42,232 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42 WrapperNode
[2020-09-24 21:21:42,233 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:42,234 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:42,234 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:42,234 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:42,251 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,252 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,274 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,275 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,313 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,331 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,341 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (1/1) ...
[2020-09-24 21:21:42,353 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:42,355 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:42,355 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:42,355 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:42,362 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (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 21:21:42,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:42,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:42,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:42,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:42,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:42,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:42,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:42,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:42,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:42,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 21:21:42,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:42,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:42,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:42,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:42,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:42,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:42,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:42,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:42,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:42,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:42,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:42,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:42,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:42,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:42,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 21:21:42,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:42,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:42,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:42,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:42,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:42,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:42,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:42,470 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:42,470 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:42,471 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:42,472 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:42,473 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:42,474 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:42,474 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:42,474 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:42,474 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:42,474 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:42,475 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:42,475 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:42,475 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:42,475 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:42,475 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:42,476 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:21:42,477 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:42,477 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:42,477 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:42,477 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:42,477 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:42,478 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:42,478 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 21:21:42,478 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 21:21:42,478 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:42,479 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 21:21:42,479 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:42,479 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:42,479 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:42,479 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:42,480 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:43,815 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:43,815 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:43,823 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:43 BoogieIcfgContainer
[2020-09-24 21:21:43,823 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:43,824 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:43,824 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:43,828 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:43,828 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:41" (1/3) ...
[2020-09-24 21:21:43,829 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3e6014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:43, skipping insertion in model container
[2020-09-24 21:21:43,830 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:42" (2/3) ...
[2020-09-24 21:21:43,830 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3e6014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:43, skipping insertion in model container
[2020-09-24 21:21:43,830 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:43" (3/3) ...
[2020-09-24 21:21:43,833 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c
[2020-09-24 21:21:43,845 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:43,857 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:43,880 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:43,919 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:43,919 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:43,919 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:43,919 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:43,919 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:43,920 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:43,920 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:43,920 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:43,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-24 21:21:43,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:43,968 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:43,970 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 21:21:43,970 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:43,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:43,979 INFO  L82        PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times
[2020-09-24 21:21:43,991 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:43,991 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734796295]
[2020-09-24 21:21:43,991 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:44,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:44,532 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:44,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:46,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:49,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:49,352 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:49,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:49,353 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5006
[2020-09-24 21:21:49,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:49,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:49,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 21:21:49,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 21:21:49,358 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:21:49,881 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:49,884 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:49,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:49,969 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,258 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,259 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:50,260 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,260 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 333
[2020-09-24 21:21:50,260 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 21:21:50,262 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:50,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,350 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,351 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:50,351 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:50,352 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:50,353 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:50,355 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:50,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,363 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,363 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:50,364 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,364 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:50,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:50,366 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,368 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:50,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,372 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,381 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,381 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:50,382 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,382 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:50,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:50,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,387 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:50,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,390 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,395 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,395 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:50,396 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,396 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:50,396 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,398 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:50,398 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:50,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,404 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:50,409 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:50,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:50,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:50,411 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,414 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:50,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,430 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:50,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,432 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:21:50,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:50,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:50,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:50,434 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,505 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:50,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:50,514 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:50,517 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:50,517 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:50,518 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:50,518 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:50,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:50,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:50,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:50,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:50,520 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:50,597 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 21:21:50,598 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734796295]
[2020-09-24 21:21:50,601 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:50,602 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 21:21:50,603 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746056760]
[2020-09-24 21:21:50,615 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 21:21:50,615 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:50,639 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 21:21:50,640 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 21:21:50,644 INFO  L87              Difference]: Start difference. First operand 320 states. Second operand 8 states.
[2020-09-24 21:21:51,436 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:53,199 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:53,512 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:53,929 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:54,376 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:54,680 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:54,984 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:55,293 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:56,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:56,652 INFO  L93              Difference]: Finished difference Result 647 states and 796 transitions.
[2020-09-24 21:21:56,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 21:21:56,657 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 21:21:56,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:56,694 INFO  L225             Difference]: With dead ends: 647
[2020-09-24 21:21:56,695 INFO  L226             Difference]: Without dead ends: 448
[2020-09-24 21:21:56,701 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 21:21:56,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 448 states.
[2020-09-24 21:21:56,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 402.
[2020-09-24 21:21:56,867 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-24 21:21:56,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 457 transitions.
[2020-09-24 21:21:56,874 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 457 transitions. Word has length 153
[2020-09-24 21:21:56,875 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:56,875 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 457 transitions.
[2020-09-24 21:21:56,875 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 21:21:56,876 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 457 transitions.
[2020-09-24 21:21:56,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 21:21:56,884 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:56,885 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 21:21:56,885 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:56,885 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:56,886 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:56,886 INFO  L82        PathProgramCache]: Analyzing trace with hash -575625334, now seen corresponding path program 1 times
[2020-09-24 21:21:56,886 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:56,886 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037899031]
[2020-09-24 21:21:56,887 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:56,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,383 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 21:21:57,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 421
[2020-09-24 21:21:57,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:57,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 21:21:57,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 21:21:57,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,673 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:57,674 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:57,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,805 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,806 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:57,806 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,806 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 117
[2020-09-24 21:21:57,806 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,806 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,807 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,807 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,807 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,844 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:57,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,850 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:57,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,851 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:57,851 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,853 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:57,854 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:57,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,857 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,858 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,859 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:57,859 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,859 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:57,859 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,860 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,862 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:57,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,863 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:57,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:57,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,871 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:57,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,873 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,874 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:57,875 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,875 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 21:21:57,875 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,887 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 21:21:57,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,889 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,892 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,892 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:21:57,893 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,893 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:57,893 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,895 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:57,908 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 21:21:57,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,916 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 21:21:57,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:57,917 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:57,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:57,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 21:21:57,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:57,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 21:21:57,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,924 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,924 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:57,926 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,926 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:57,927 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:57,928 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,928 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:57,930 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 21:21:57,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,933 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,934 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:57,934 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,934 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:57,934 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:57,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,938 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:21:57,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 21:21:57,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:57,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:57,943 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:57,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:57,944 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:57,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:57,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:57,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:57,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:57,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:57,946 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:57,981 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 21:21:57,981 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037899031]
[2020-09-24 21:21:57,981 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:57,982 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 21:21:57,982 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139288085]
[2020-09-24 21:21:57,985 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 21:21:57,986 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:57,986 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 21:21:57,986 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 21:21:57,986 INFO  L87              Difference]: Start difference. First operand 402 states and 457 transitions. Second operand 6 states.
[2020-09-24 21:21:58,497 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:59,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:59,981 INFO  L93              Difference]: Finished difference Result 791 states and 975 transitions.
[2020-09-24 21:21:59,984 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 21:21:59,984 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 21:21:59,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:59,990 INFO  L225             Difference]: With dead ends: 791
[2020-09-24 21:21:59,990 INFO  L226             Difference]: Without dead ends: 499
[2020-09-24 21:21:59,993 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 21:21:59,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 499 states.
[2020-09-24 21:22:00,062 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 398.
[2020-09-24 21:22:00,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 398 states.
[2020-09-24 21:22:00,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 448 transitions.
[2020-09-24 21:22:00,066 INFO  L78                 Accepts]: Start accepts. Automaton has 398 states and 448 transitions. Word has length 172
[2020-09-24 21:22:00,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:22:00,067 INFO  L479      AbstractCegarLoop]: Abstraction has 398 states and 448 transitions.
[2020-09-24 21:22:00,067 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 21:22:00,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 398 states and 448 transitions.
[2020-09-24 21:22:00,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-24 21:22:00,072 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:22:00,072 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:22:00,072 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:22:00,073 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:22:00,073 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:22:00,073 INFO  L82        PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times
[2020-09-24 21:22:00,073 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:22:00,073 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878144117]
[2020-09-24 21:22:00,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:22:00,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:22:00,147 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:22:00,148 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:22:00,153 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:22:00,185 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:22:00 BoogieIcfgContainer
[2020-09-24 21:22:00,185 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:22:00,188 INFO  L168              Benchmark]: Toolchain (without parser) took 18709.77 ms. Allocated memory was 146.8 MB in the beginning and 474.5 MB in the end (delta: 327.7 MB). Free memory was 101.8 MB in the beginning and 128.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 301.4 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,189 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,190 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 750.06 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 101.1 MB in the beginning and 170.1 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,190 INFO  L168              Benchmark]: Boogie Preprocessor took 119.72 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,191 INFO  L168              Benchmark]: RCFGBuilder took 1468.48 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.1 MB in the beginning and 174.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,192 INFO  L168              Benchmark]: TraceAbstraction took 16361.19 ms. Allocated memory was 236.5 MB in the beginning and 474.5 MB in the end (delta: 238.0 MB). Free memory was 173.5 MB in the beginning and 128.1 MB in the end (delta: 45.4 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB.
[2020-09-24 21:22:00,196 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 750.06 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 101.1 MB in the beginning and 170.1 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 119.72 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1468.48 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.1 MB in the beginning and 174.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16361.19 ms. Allocated memory was 236.5 MB in the beginning and 474.5 MB in the end (delta: 238.0 MB). Free memory was 173.5 MB in the beginning and 128.1 MB in the end (delta: 45.4 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L47]               int waterLevel  =    1;
[L48]               int methaneLevelCritical  =    0;
[L136]              int cleanupTimeShifts  =    4;
[L407]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L675]              int pumpRunning  =    0;
[L676]              int systemActive  =    1;
[L215]              int retValue_acc ;
[L216]              int tmp ;
[L220]  FCALL       select_helpers()
[L221]  FCALL       select_features()
[L222]  CALL, EXPR  valid_product()
[L914]              int retValue_acc ;
[L917]              retValue_acc = 1
[L918]              return (retValue_acc);
[L222]  RET, EXPR   valid_product()
[L222]              tmp = valid_product()
[L224]  COND TRUE   \read(tmp)
[L226]  FCALL       setup()
[L227]  CALL        runTest()
[L206]  CALL        test()
[L606]              int splverifierCounter ;
[L607]              int tmp ;
[L608]              int tmp___0 ;
[L609]              int tmp___1 ;
[L610]              int tmp___2 ;
[L613]              splverifierCounter = 0
[L615]  COND TRUE   1
[L617]  COND TRUE   splverifierCounter < 4
[L623]              tmp = __VERIFIER_nondet_int()
[L625]  COND TRUE   \read(tmp)
[L627]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L627]  RET         waterRise()
[L633]              tmp___0 = __VERIFIER_nondet_int()
[L635]  COND FALSE  !(\read(tmp___0))
[L643]              tmp___2 = __VERIFIER_nondet_int()
[L645]  COND TRUE   \read(tmp___2)
[L647]  CALL        startSystem()
[L874]              systemActive = 1
[L647]  RET         startSystem()
[L660]  CALL        timeShift()
[L683]  COND FALSE  !(\read(pumpRunning))
[L690]  COND TRUE   \read(systemActive)
[L692]  CALL        processEnvironment()
[L738]              int tmp ;
[L741]  COND FALSE  !(\read(pumpRunning))
[L756]  CALL        processEnvironment__wrappee__methaneQuery()
[L712]              int tmp ;
[L715]  COND FALSE  !(\read(pumpRunning))
[L730]  FCALL       processEnvironment__wrappee__base()
[L756]  RET         processEnvironment__wrappee__methaneQuery()
[L692]  RET         processEnvironment()
[L698]  CALL        __utac_acc__Specification3_spec__1()
[L924]              int tmp ;
[L925]              int tmp___0 ;
[L926]              int tmp___1 ;
[L930]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L930]  RET, EXPR   isMethaneLevelCritical()
[L930]              tmp = isMethaneLevelCritical()
[L932]  COND FALSE  !(\read(tmp))
[L936]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L936]  RET, EXPR   getWaterLevel()
[L936]              tmp___0 = getWaterLevel()
[L938]  COND TRUE   tmp___0 == 2
[L940]  CALL, EXPR  isPumpRunning()
[L807]              int retValue_acc ;
[L810]              retValue_acc = pumpRunning
[L811]              return (retValue_acc);
[L940]  RET, EXPR   isPumpRunning()
[L940]              tmp___1 = isPumpRunning()
[L942]  COND FALSE  !(\read(tmp___1))
[L946]  CALL        __automaton_fail()
[L883]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 500 SDtfs, 1013 SDslu, 742 SDs, 0 SdLazy, 1615 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred 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, 147 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 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...