/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-27 03:37:52,803 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-27 03:37:52,806 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-27 03:37:52,844 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-27 03:37:52,845 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-27 03:37:52,846 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-27 03:37:52,848 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-27 03:37:52,850 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-27 03:37:52,852 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-27 03:37:52,853 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-27 03:37:52,854 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-27 03:37:52,856 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-27 03:37:52,856 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-27 03:37:52,858 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-27 03:37:52,859 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-27 03:37:52,860 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-27 03:37:52,861 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-27 03:37:52,863 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-27 03:37:52,865 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-27 03:37:52,867 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-27 03:37:52,869 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-27 03:37:52,870 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-27 03:37:52,872 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-27 03:37:52,873 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-27 03:37:52,876 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-27 03:37:52,876 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-27 03:37:52,877 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-27 03:37:52,881 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-27 03:37:52,882 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-27 03:37:52,883 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-27 03:37:52,884 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-27 03:37:52,887 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-27 03:37:52,888 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-27 03:37:52,889 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-27 03:37:52,893 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-27 03:37:52,893 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-27 03:37:52,894 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-10-27 03:37:52,895 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-27 03:37:52,897 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-27 03:37:52,898 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-27 03:37:52,899 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-10-27 03:37:52,953 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-27 03:37:52,953 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-27 03:37:52,955 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-27 03:37:52,955 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-27 03:37:52,956 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-27 03:37:52,958 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-27 03:37:52,958 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-27 03:37:52,958 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-27 03:37:52,958 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-27 03:37:52,958 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-27 03:37:52,959 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-27 03:37:52,959 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-27 03:37:52,959 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-27 03:37:52,959 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-27 03:37:52,960 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-27 03:37:52,960 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-27 03:37:52,961 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-27 03:37:52,961 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-27 03:37:52,962 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-27 03:37:52,962 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-27 03:37:52,962 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-27 03:37:52,962 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:37:52,963 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-27 03:37:52,963 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-27 03:37:52,963 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-27 03:37:52,963 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-27 03:37:52,963 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-27 03:37:52,964 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-27 03:37:52,964 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-27 03:37:52,964 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true;
[2020-10-27 03:37:53,327 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-27 03:37:53,364 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-27 03:37:53,368 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-27 03:37:53,369 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-27 03:37:53,370 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-27 03:37:53,373 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c
[2020-10-27 03:37:53,458 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c0e63e50/c029117719a24a8dadf651e1ef0d5e8d/FLAG0e2b2e275
[2020-10-27 03:37:54,167 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-27 03:37:54,168 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c
[2020-10-27 03:37:54,192 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c0e63e50/c029117719a24a8dadf651e1ef0d5e8d/FLAG0e2b2e275
[2020-10-27 03:37:54,416 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c0e63e50/c029117719a24a8dadf651e1ef0d5e8d
[2020-10-27 03:37:54,420 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-27 03:37:54,427 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-27 03:37:54,430 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-27 03:37:54,431 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-27 03:37:54,434 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-27 03:37:54,436 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:54,440 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629e4241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54, skipping insertion in model container
[2020-10-27 03:37:54,440 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:54,449 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-27 03:37:54,513 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-27 03:37:54,861 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:37:54,872 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-27 03:37:54,957 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:37:54,994 INFO  L208         MainTranslator]: Completed translation
[2020-10-27 03:37:54,994 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54 WrapperNode
[2020-10-27 03:37:54,994 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-27 03:37:54,995 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-27 03:37:54,996 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-27 03:37:54,996 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-27 03:37:55,007 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,008 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,026 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,027 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,090 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,125 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,132 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
[2020-10-27 03:37:55,140 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-27 03:37:55,141 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-27 03:37:55,142 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-27 03:37:55,142 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-27 03:37:55,143 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:37:55,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-27 03:37:55,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-27 03:37:55,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-27 03:37:55,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-27 03:37:55,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-10-27 03:37:55,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-27 03:37:55,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-27 03:37:55,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:37:55,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-27 03:37:55,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-27 03:37:55,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-27 03:37:55,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-27 03:37:55,230 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-27 03:37:55,231 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-27 03:37:55,232 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:37:55,233 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-10-27 03:37:55,234 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-27 03:37:55,235 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-27 03:37:55,236 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-27 03:37:55,237 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-27 03:37:55,238 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-27 03:37:55,239 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-27 03:37:55,239 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-27 03:37:55,239 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-27 03:37:56,619 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-27 03:37:56,619 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-27 03:37:56,621 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:37:56 BoogieIcfgContainer
[2020-10-27 03:37:56,622 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-27 03:37:56,623 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-27 03:37:56,623 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-27 03:37:56,627 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-27 03:37:56,627 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:37:54" (1/3) ...
[2020-10-27 03:37:56,628 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e61ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:37:56, skipping insertion in model container
[2020-10-27 03:37:56,628 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:37:54" (2/3) ...
[2020-10-27 03:37:56,628 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e61ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:37:56, skipping insertion in model container
[2020-10-27 03:37:56,629 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:37:56" (3/3) ...
[2020-10-27 03:37:56,630 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c
[2020-10-27 03:37:56,642 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-27 03:37:56,647 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-27 03:37:56,660 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-27 03:37:56,689 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-27 03:37:56,689 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-27 03:37:56,689 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-27 03:37:56,689 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-27 03:37:56,689 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-27 03:37:56,690 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-27 03:37:56,690 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-27 03:37:56,690 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-27 03:37:56,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 203 states.
[2020-10-27 03:37:56,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-27 03:37:56,724 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:37:56,725 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-27 03:37:56,725 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:37:56,731 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:37:56,732 INFO  L82        PathProgramCache]: Analyzing trace with hash 1884235953, now seen corresponding path program 1 times
[2020-10-27 03:37:56,741 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:37:56,742 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580139088]
[2020-10-27 03:37:56,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:37:57,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:37:57,157 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:37:57,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:37:58,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:37:59,997 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:37:59,997 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-27 03:37:59,997 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-27 03:38:00,004 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2968
[2020-10-27 03:38:00,006 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-27 03:38:00,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:00,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-27 03:38:00,007 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-27 03:38:00,435 WARN  L193               SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:38:00,438 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:38:00,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,486 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,571 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,572 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:00,572 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-10-27 03:38:00,573 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:00,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:00,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:38:00,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:38:00,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,622 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,625 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:00,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:38:00,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:00,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:00,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:00,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,630 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:38:00,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,636 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,637 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,638 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:00,638 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,638 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:38:00,638 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:00,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:00,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:00,640 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-27 03:38:00,643 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:38:00,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,653 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,654 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:00,654 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,654 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:38:00,654 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:00,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:00,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:38:00,655 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:38:00,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,671 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,673 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,674 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:00,674 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,674 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:38:00,674 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,674 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:00,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:00,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:00,675 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,680 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-27 03:38:00,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,684 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,685 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,685 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:00,685 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,685 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:00,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:38:00,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:00,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:38:00,686 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:38:00,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,692 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,692 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:00,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:38:00,694 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,696 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-27 03:38:00,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:00,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:00,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:00,699 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:00,699 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:00,699 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:00,699 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:00,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:38:00,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:00,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:38:00,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:00,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:38:00,721 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580139088]
[2020-10-27 03:38:00,723 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:38:00,724 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-27 03:38:00,724 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865177851]
[2020-10-27 03:38:00,732 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-27 03:38:00,733 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:38:00,746 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-27 03:38:00,747 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-27 03:38:00,749 INFO  L87              Difference]: Start difference. First operand 203 states. Second operand 4 states.
[2020-10-27 03:38:01,256 WARN  L193               SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:38:04,247 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:38:04,248 INFO  L93              Difference]: Finished difference Result 529 states and 687 transitions.
[2020-10-27 03:38:04,250 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-27 03:38:04,254 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-27 03:38:04,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:38:04,282 INFO  L225             Difference]: With dead ends: 529
[2020-10-27 03:38:04,282 INFO  L226             Difference]: Without dead ends: 347
[2020-10-27 03:38:04,290 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-27 03:38:04,308 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 347 states.
[2020-10-27 03:38:04,467 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 279.
[2020-10-27 03:38:04,469 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 279 states.
[2020-10-27 03:38:04,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 334 transitions.
[2020-10-27 03:38:04,474 INFO  L78                 Accepts]: Start accepts. Automaton has 279 states and 334 transitions. Word has length 53
[2020-10-27 03:38:04,475 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:38:04,475 INFO  L481      AbstractCegarLoop]: Abstraction has 279 states and 334 transitions.
[2020-10-27 03:38:04,475 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-27 03:38:04,475 INFO  L276                IsEmpty]: Start isEmpty. Operand 279 states and 334 transitions.
[2020-10-27 03:38:04,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-10-27 03:38:04,481 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:38:04,481 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]
[2020-10-27 03:38:04,481 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-27 03:38:04,482 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:38:04,482 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:38:04,483 INFO  L82        PathProgramCache]: Analyzing trace with hash -1777537951, now seen corresponding path program 1 times
[2020-10-27 03:38:04,483 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:38:04,483 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179775589]
[2020-10-27 03:38:04,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:38:04,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:04,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:05,866 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:05,867 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 98
[2020-10-27 03:38:05,867 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:05,867 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1343
[2020-10-27 03:38:05,867 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:05,867 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-27 03:38:05,868 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:05,868 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-10-27 03:38:05,868 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-27 03:38:06,309 WARN  L193               SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:38:06,310 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:38:06,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,338 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,408 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,408 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:06,409 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,409 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 80
[2020-10-27 03:38:06,409 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:38:06,410 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,439 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:38:06,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,443 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:06,443 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:06,444 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,446 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:38:06,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,447 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,449 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,449 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:06,449 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,449 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:06,450 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:06,450 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,452 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:38:06,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,454 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,456 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,456 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:06,456 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:38:06,457 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:38:06,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,459 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:38:06,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,460 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,462 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,462 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:38:06,462 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,462 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:06,463 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:38:06,463 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-10-27 03:38:06,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,481 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,483 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-27 03:38:06,485 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,486 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2020-10-27 03:38:06,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,490 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,490 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:06,490 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,491 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:38:06,491 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:38:06,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:38:06,492 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,493 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-10-27 03:38:06,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,495 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,498 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,499 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:06,499 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,499 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:38:06,499 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-27 03:38:06,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:38:06,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:38:06,500 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,514 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-10-27 03:38:06,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:38:06,517 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:38:06,518 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:38:06,519 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:38:06,519 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:38:06,519 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:38:06,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:38:06,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:38:06,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:38:06,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:38:06,520 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:38:06,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:38:06,535 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179775589]
[2020-10-27 03:38:06,535 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:38:06,536 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-10-27 03:38:06,536 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903444951]
[2020-10-27 03:38:06,537 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-10-27 03:38:06,538 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:38:06,538 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-10-27 03:38:06,538 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-10-27 03:38:06,539 INFO  L87              Difference]: Start difference. First operand 279 states and 334 transitions. Second operand 9 states.
[2020-10-27 03:38:07,055 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:38:09,010 WARN  L193               SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-27 03:38:09,538 WARN  L193               SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:38:09,959 WARN  L193               SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:38:10,335 WARN  L193               SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:38:10,903 WARN  L193               SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:38:12,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:38:12,934 INFO  L93              Difference]: Finished difference Result 936 states and 1309 transitions.
[2020-10-27 03:38:12,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-10-27 03:38:12,935 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 64
[2020-10-27 03:38:12,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:38:12,951 INFO  L225             Difference]: With dead ends: 936
[2020-10-27 03:38:12,952 INFO  L226             Difference]: Without dead ends: 637
[2020-10-27 03:38:12,961 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2020-10-27 03:38:12,964 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 637 states.
[2020-10-27 03:38:13,150 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 504.
[2020-10-27 03:38:13,150 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 504 states.
[2020-10-27 03:38:13,154 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 617 transitions.
[2020-10-27 03:38:13,154 INFO  L78                 Accepts]: Start accepts. Automaton has 504 states and 617 transitions. Word has length 64
[2020-10-27 03:38:13,155 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:38:13,155 INFO  L481      AbstractCegarLoop]: Abstraction has 504 states and 617 transitions.
[2020-10-27 03:38:13,155 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-10-27 03:38:13,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 504 states and 617 transitions.
[2020-10-27 03:38:13,161 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-10-27 03:38:13,161 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:38:13,161 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]
[2020-10-27 03:38:13,161 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-27 03:38:13,161 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-27 03:38:13,162 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:38:13,162 INFO  L82        PathProgramCache]: Analyzing trace with hash -1393766693, now seen corresponding path program 1 times
[2020-10-27 03:38:13,162 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:38:13,163 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414427190]
[2020-10-27 03:38:13,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:38:13,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-27 03:38:13,207 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-27 03:38:13,207 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-27 03:38:13,211 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-27 03:38:13,232 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:38:13 BoogieIcfgContainer
[2020-10-27 03:38:13,233 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-27 03:38:13,235 INFO  L168              Benchmark]: Toolchain (without parser) took 18812.04 ms. Allocated memory was 125.8 MB in the beginning and 332.4 MB in the end (delta: 206.6 MB). Free memory was 100.2 MB in the beginning and 130.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 177.7 MB. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,235 INFO  L168              Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 125.8 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,236 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 564.31 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 77.7 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,237 INFO  L168              Benchmark]: Boogie Preprocessor took 145.13 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 77.7 MB in the beginning and 137.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,238 INFO  L168              Benchmark]: RCFGBuilder took 1480.22 ms. Allocated memory is still 156.2 MB. Free memory was 137.5 MB in the beginning and 90.6 MB in the end (delta: 46.9 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,239 INFO  L168              Benchmark]: TraceAbstraction took 16609.57 ms. Allocated memory was 156.2 MB in the beginning and 332.4 MB in the end (delta: 176.2 MB). Free memory was 90.6 MB in the beginning and 130.1 MB in the end (delta: -39.6 MB). Peak memory consumption was 136.1 MB. Max. memory is 8.0 GB.
[2020-10-27 03:38:13,242 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 1.41 ms. Allocated memory is still 125.8 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 564.31 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 77.7 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 145.13 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 77.7 MB in the beginning and 137.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1480.22 ms. Allocated memory is still 156.2 MB. Free memory was 137.5 MB in the beginning and 90.6 MB in the end (delta: 46.9 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 16609.57 ms. Allocated memory was 156.2 MB in the beginning and 332.4 MB in the end (delta: 176.2 MB). Free memory was 90.6 MB in the beginning and 130.1 MB in the end (delta: -39.6 MB). Peak memory consumption was 136.1 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L126]               int pumpRunning  =    0;
[L127]               int systemActive  =    1;
[L570]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L814]               int waterLevel  =    1;
[L815]               int methaneLevelCritical  =    0;
[L917]               int cleanupTimeShifts  =    4;
[L990]               int retValue_acc ;
[L991]               int tmp ;
[L995]   FCALL       select_helpers()
[L996]   FCALL       select_features()
[L997]   CALL, EXPR  valid_product()
[L805]               int retValue_acc ;
[L808]               retValue_acc = 1
[L809]               return (retValue_acc);
[L997]   RET, EXPR   valid_product()
[L997]               tmp = valid_product()
[L999]   COND TRUE   \read(tmp)
[L1001]  FCALL       setup()
[L1002]  CALL        runTest()
[L984]   CALL        test()
[L49]                int splverifierCounter ;
[L50]                int tmp ;
[L51]                int tmp___0 ;
[L52]                int tmp___1 ;
[L53]                int tmp___2 ;
[L56]                splverifierCounter = 0
[L58]    COND TRUE   1
[L60]    COND TRUE   splverifierCounter < 4
[L66]                tmp = __VERIFIER_nondet_int()
[L68]    COND TRUE   \read(tmp)
[L70]    CALL        waterRise()
[L832]   COND TRUE   waterLevel < 2
[L833]               waterLevel = waterLevel + 1
[L70]    RET         waterRise()
[L76]                tmp___0 = __VERIFIER_nondet_int()
[L78]    COND FALSE  !(\read(tmp___0))
[L86]                tmp___2 = __VERIFIER_nondet_int()
[L88]    COND FALSE  !(\read(tmp___2))
[L94]                tmp___1 = __VERIFIER_nondet_int()
[L96]    COND TRUE   \read(tmp___1)
[L98]    CALL        stopSystem()
[L345]   COND FALSE  !(\read(pumpRunning))
[L352]               systemActive = 0
[L98]    RET         stopSystem()
[L105]   CALL        timeShift()
[L134]   COND FALSE  !(\read(pumpRunning))
[L141]   COND FALSE  !(\read(systemActive))
[L149]   CALL        __utac_acc__Specification3_spec__1()
[L368]               int tmp ;
[L369]               int tmp___0 ;
[L370]               int tmp___1 ;
[L374]   CALL, EXPR  isMethaneLevelCritical()
[L853]               int retValue_acc ;
[L856]               retValue_acc = methaneLevelCritical
[L857]               return (retValue_acc);
[L374]   RET, EXPR   isMethaneLevelCritical()
[L374]               tmp = isMethaneLevelCritical()
[L376]   COND FALSE  !(\read(tmp))
[L380]   CALL, EXPR  getWaterLevel()
[L885]               int retValue_acc ;
[L888]               retValue_acc = waterLevel
[L889]               return (retValue_acc);
[L380]   RET, EXPR   getWaterLevel()
[L380]               tmp___0 = getWaterLevel()
[L382]   COND TRUE   tmp___0 == 2
[L384]   CALL, EXPR  isPumpRunning()
[L259]               int retValue_acc ;
[L262]               retValue_acc = pumpRunning
[L263]               return (retValue_acc);
[L384]   RET, EXPR   isPumpRunning()
[L384]               tmp___1 = isPumpRunning()
[L386]   COND FALSE  !(\read(tmp___1))
[L390]   CALL        __automaton_fail()
[L771]   CALL        reach_error()
[L3]                 __assert_fail("0", "minepump_spec3_product60.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 44 procedures, 267 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 710 SDslu, 294 SDs, 0 SdLazy, 1575 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 201 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 39072 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...