/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=WIDEST --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_product23.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:54,851 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:54,855 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:54,883 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:54,883 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:54,884 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:54,886 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:54,888 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:54,890 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:54,892 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:54,893 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:54,894 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:54,894 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:54,896 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:54,897 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:54,898 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:54,899 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:54,901 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:54,903 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:54,904 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:54,906 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:54,907 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:54,909 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:54,910 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:54,913 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:54,913 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:54,913 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:54,914 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:54,915 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:54,916 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:54,916 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:54,917 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:54,918 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:54,919 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:54,920 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:54,921 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:54,922 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:54,922 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:54,922 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:54,923 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:54,924 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:54,925 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
[2020-09-25 02:58:54,952 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:54,952 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:54,954 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:54,954 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:54,954 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:54,954 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:54,954 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:54,955 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:54,955 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:54,955 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:54,955 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:54,955 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:54,956 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:54,956 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:54,956 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:54,956 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:54,956 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:54,957 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:54,957 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:54,957 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:54,957 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:54,957 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:54,958 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:54,958 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:54,958 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:54,958 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:54,958 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:54,959 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:54,959 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:54,959 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 02:58:55,436 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:55,463 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:55,468 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:55,471 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:55,473 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:55,474 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 02:58:55,571 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/434c9bdb6/7b94207c580d49b3b72834fa8d4eefaf/FLAGc7ce0960b
[2020-09-25 02:58:56,202 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:56,203 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 02:58:56,219 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/434c9bdb6/7b94207c580d49b3b72834fa8d4eefaf/FLAGc7ce0960b
[2020-09-25 02:58:56,496 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/434c9bdb6/7b94207c580d49b3b72834fa8d4eefaf
[2020-09-25 02:58:56,511 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:56,517 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:56,521 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:56,521 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:56,525 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:56,527 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:56" (1/1) ...
[2020-09-25 02:58:56,532 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54de61ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:56, skipping insertion in model container
[2020-09-25 02:58:56,533 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:56" (1/1) ...
[2020-09-25 02:58:56,543 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:56,625 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:57,071 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:57,088 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:57,197 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:57,256 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:57,257 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57 WrapperNode
[2020-09-25 02:58:57,257 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:57,259 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:57,259 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:57,259 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:57,279 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,281 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,306 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,306 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,345 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,357 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,362 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,370 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:57,370 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:57,371 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:57,371 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:57,376 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (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
[2020-09-25 02:58:57,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:57,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:57,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:57,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:57,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:57,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:57,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:57,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:57,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:57,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 02:58:57,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:57,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:57,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:57,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:57,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:57,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:57,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:57,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:57,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:57,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:57,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:57,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:57,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:57,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:57,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:57,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:57,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:57,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:57,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:57,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:57,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:57,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:57,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:57,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:57,461 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:57,461 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:57,462 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:57,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 02:58:57,464 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:57,465 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:57,466 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:57,467 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:57,468 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:58,687 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:58,687 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:58,695 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:58 BoogieIcfgContainer
[2020-09-25 02:58:58,695 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:58,696 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:58,696 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:58,701 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:58,701 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:56" (1/3) ...
[2020-09-25 02:58:58,702 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50571a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:58, skipping insertion in model container
[2020-09-25 02:58:58,702 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (2/3) ...
[2020-09-25 02:58:58,703 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50571a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:58, skipping insertion in model container
[2020-09-25 02:58:58,703 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:58" (3/3) ...
[2020-09-25 02:58:58,705 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c
[2020-09-25 02:58:58,718 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:58,730 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:58,753 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:58,783 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:58,784 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:58,784 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:58,784 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:58,784 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:58,784 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:58,784 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:58,784 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:58,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 02:58:58,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:58,835 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:58,836 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]
[2020-09-25 02:58:58,837 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:58,845 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:58,845 INFO  L82        PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times
[2020-09-25 02:58:58,855 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:58,856 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289718460]
[2020-09-25 02:58:58,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:59,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:59,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:59,569 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:01,181 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:04,224 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:04,224 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:59:04,225 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:59:04,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5007
[2020-09-25 02:59:04,228 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:04,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:59:04,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 02:59:04,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-25 02:59:04,230 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 02:59:04,829 WARN  L193               SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:59:04,832 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:59:04,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:04,954 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,216 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,216 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:59:05,216 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,217 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 337
[2020-09-25 02:59:05,217 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 02:59:05,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,301 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:05,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,304 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,307 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,308 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,308 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:05,308 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,309 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,311 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:05,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:05,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:05,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,334 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,334 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,335 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:59:05,335 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,336 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:05,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,347 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,347 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,347 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:05,347 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,350 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:59:05,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,354 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,358 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,358 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:05,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:05,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:59:05,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,366 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,375 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,376 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,376 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:59:05,376 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:59:05,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,377 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,419 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:59:05,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,422 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,424 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,424 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:05,425 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:05,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:05,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:05,426 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:59:05,465 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289718460]
[2020-09-25 02:59:05,468 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:05,468 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:59:05,469 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001959178]
[2020-09-25 02:59:05,477 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:59:05,477 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:05,497 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:59:05,499 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:59:05,501 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 8 states.
[2020-09-25 02:59:06,212 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:07,883 WARN  L193               SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 02:59:08,791 WARN  L193               SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-25 02:59:09,481 WARN  L193               SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-25 02:59:09,898 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:10,306 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:10,689 WARN  L193               SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:11,049 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:12,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:12,495 INFO  L93              Difference]: Finished difference Result 659 states and 812 transitions.
[2020-09-25 02:59:12,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 02:59:12,501 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:59:12,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:12,544 INFO  L225             Difference]: With dead ends: 659
[2020-09-25 02:59:12,544 INFO  L226             Difference]: Without dead ends: 458
[2020-09-25 02:59:12,558 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-25 02:59:12,584 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 458 states.
[2020-09-25 02:59:12,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 410.
[2020-09-25 02:59:12,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 410 states.
[2020-09-25 02:59:12,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 467 transitions.
[2020-09-25 02:59:12,730 INFO  L78                 Accepts]: Start accepts. Automaton has 410 states and 467 transitions. Word has length 153
[2020-09-25 02:59:12,731 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:12,731 INFO  L479      AbstractCegarLoop]: Abstraction has 410 states and 467 transitions.
[2020-09-25 02:59:12,731 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:59:12,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 410 states and 467 transitions.
[2020-09-25 02:59:12,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 02:59:12,740 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:12,740 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]
[2020-09-25 02:59:12,741 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:59:12,741 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:12,741 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:12,742 INFO  L82        PathProgramCache]: Analyzing trace with hash 965553253, now seen corresponding path program 1 times
[2020-09-25 02:59:12,742 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:12,742 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106852471]
[2020-09-25 02:59:12,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:12,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:12,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:12,987 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:13,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,841 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 02:59:17,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:59:17,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5021
[2020-09-25 02:59:17,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 02:59:17,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 02:59:17,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-25 02:59:17,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:18,170 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:59:18,172 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:59:18,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,457 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,457 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:59:18,457 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,458 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 252
[2020-09-25 02:59:18,458 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 02:59:18,459 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:18,535 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:18,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,543 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,544 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:18,544 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,544 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 02:59:18,545 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,546 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:18,546 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,548 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:18,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,550 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,553 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,554 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:18,554 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,554 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:18,555 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:18,556 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,558 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:18,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:18,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 02:59:18,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:18,572 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:18,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,581 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:18,581 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,582 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:18,582 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:18,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:18,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 02:59:18,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,596 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,604 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,604 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:59:18,604 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,605 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 02:59:18,605 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:18,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:18,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 02:59:18,607 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,611 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 02:59:18,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,621 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,621 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:18,622 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,622 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:18,622 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:18,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:18,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:18,624 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,626 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 02:59:18,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,628 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,630 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,631 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:18,634 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,635 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:18,635 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:18,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:18,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:18,637 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:18,639 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 02:59:18,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:18,641 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:18,644 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:18,644 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:18,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:18,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:18,645 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:18,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:18,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:18,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:18,655 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 02:59:18,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:59:18,714 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106852471]
[2020-09-25 02:59:18,714 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:18,714 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 02:59:18,715 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225131928]
[2020-09-25 02:59:18,719 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 02:59:18,719 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:18,720 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 02:59:18,720 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:59:18,720 INFO  L87              Difference]: Start difference. First operand 410 states and 467 transitions. Second operand 6 states.
[2020-09-25 02:59:19,212 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:20,177 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 02:59:23,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:23,049 INFO  L93              Difference]: Finished difference Result 1286 states and 1599 transitions.
[2020-09-25 02:59:23,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 02:59:23,050 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 02:59:23,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:23,059 INFO  L225             Difference]: With dead ends: 1286
[2020-09-25 02:59:23,059 INFO  L226             Difference]: Without dead ends: 986
[2020-09-25 02:59:23,062 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 02:59:23,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 986 states.
[2020-09-25 02:59:23,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 871.
[2020-09-25 02:59:23,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 871 states.
[2020-09-25 02:59:23,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1027 transitions.
[2020-09-25 02:59:23,209 INFO  L78                 Accepts]: Start accepts. Automaton has 871 states and 1027 transitions. Word has length 159
[2020-09-25 02:59:23,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:23,210 INFO  L479      AbstractCegarLoop]: Abstraction has 871 states and 1027 transitions.
[2020-09-25 02:59:23,210 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 02:59:23,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 871 states and 1027 transitions.
[2020-09-25 02:59:23,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-25 02:59:23,217 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:23,217 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]
[2020-09-25 02:59:23,217 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:59:23,218 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:23,218 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:23,218 INFO  L82        PathProgramCache]: Analyzing trace with hash 1949917380, now seen corresponding path program 1 times
[2020-09-25 02:59:23,218 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:23,219 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217231115]
[2020-09-25 02:59:23,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:23,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:59:23,300 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:59:23,300 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:59:23,307 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:59:23,337 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:23 BoogieIcfgContainer
[2020-09-25 02:59:23,338 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:59:23,341 INFO  L168              Benchmark]: Toolchain (without parser) took 26827.07 ms. Allocated memory was 136.3 MB in the beginning and 586.2 MB in the end (delta: 449.8 MB). Free memory was 98.4 MB in the beginning and 369.0 MB in the end (delta: -270.6 MB). Peak memory consumption was 179.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,342 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.3 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,343 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 737.57 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 97.8 MB in the beginning and 165.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,344 INFO  L168              Benchmark]: Boogie Preprocessor took 111.49 ms. Allocated memory is still 199.2 MB. Free memory was 165.7 MB in the beginning and 162.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,345 INFO  L168              Benchmark]: RCFGBuilder took 1324.66 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 162.1 MB in the beginning and 171.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,346 INFO  L168              Benchmark]: TraceAbstraction took 24641.68 ms. Allocated memory was 226.5 MB in the beginning and 586.2 MB in the end (delta: 359.7 MB). Free memory was 169.5 MB in the beginning and 369.0 MB in the end (delta: -199.4 MB). Peak memory consumption was 160.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:23,350 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 136.3 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 737.57 ms. Allocated memory was 136.3 MB in the beginning and 199.2 MB in the end (delta: 62.9 MB). Free memory was 97.8 MB in the beginning and 165.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 111.49 ms. Allocated memory is still 199.2 MB. Free memory was 165.7 MB in the beginning and 162.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1324.66 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 162.1 MB in the beginning and 171.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 24641.68 ms. Allocated memory was 226.5 MB in the beginning and 586.2 MB in the end (delta: 359.7 MB). Free memory was 169.5 MB in the beginning and 369.0 MB in the end (delta: -199.4 MB). Peak memory consumption was 160.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 541]: 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;
[L177]              int pumpRunning  =    0;
[L178]              int systemActive  =    1;
[L438]              int cleanupTimeShifts  =    4;
[L715]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L514]              int retValue_acc ;
[L515]              int tmp ;
[L519]  FCALL       select_helpers()
[L520]  FCALL       select_features()
[L521]  CALL, EXPR  valid_product()
[L938]              int retValue_acc ;
[L941]              retValue_acc = 1
[L942]              return (retValue_acc);
[L521]  RET, EXPR   valid_product()
[L521]              tmp = valid_product()
[L523]  COND TRUE   \read(tmp)
[L525]  FCALL       setup()
[L526]  CALL        runTest()
[L505]  CALL        test()
[L372]              int splverifierCounter ;
[L373]              int tmp ;
[L374]              int tmp___0 ;
[L375]              int tmp___1 ;
[L376]              int tmp___2 ;
[L379]              splverifierCounter = 0
[L381]  COND TRUE   1
[L383]  COND TRUE   splverifierCounter < 4
[L389]              tmp = __VERIFIER_nondet_int()
[L391]  COND TRUE   \read(tmp)
[L393]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L393]  RET         waterRise()
[L399]              tmp___0 = __VERIFIER_nondet_int()
[L401]  COND FALSE  !(\read(tmp___0))
[L409]              tmp___2 = __VERIFIER_nondet_int()
[L411]  COND TRUE   \read(tmp___2)
[L426]  CALL        timeShift()
[L184]  COND FALSE  !(\read(pumpRunning))
[L191]  COND TRUE   \read(systemActive)
[L193]  CALL        processEnvironment()
[L239]              int tmp ;
[L242]  COND FALSE  !(\read(pumpRunning))
[L257]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L213]              int tmp ;
[L216]  COND FALSE  !(\read(pumpRunning))
[L231]  FCALL       processEnvironment__wrappee__base()
[L257]  RET         processEnvironment__wrappee__lowWaterSensor()
[L193]  RET         processEnvironment()
[L199]  CALL        __utac_acc__Specification3_spec__1()
[L139]              int tmp ;
[L140]              int tmp___0 ;
[L141]              int tmp___1 ;
[L145]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L145]  RET, EXPR   isMethaneLevelCritical()
[L145]              tmp = isMethaneLevelCritical()
[L147]  COND FALSE  !(\read(tmp))
[L151]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L151]  RET, EXPR   getWaterLevel()
[L151]              tmp___0 = getWaterLevel()
[L153]  COND TRUE   tmp___0 == 2
[L155]  CALL, EXPR  isPumpRunning()
[L291]              int retValue_acc ;
[L294]              retValue_acc = pumpRunning
[L295]              return (retValue_acc);
[L155]  RET, EXPR   isPumpRunning()
[L155]              tmp___1 = isPumpRunning()
[L157]  COND FALSE  !(\read(tmp___1))
[L161]  CALL        __automaton_fail()
[L541]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 551 SDtfs, 1137 SDslu, 894 SDs, 0 SdLazy, 2078 SolverSat, 417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 163 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 137130 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...