/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=BIGGEST --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_product29.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:13:16,863 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:13:16,869 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:13:16,896 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:13:16,897 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:13:16,898 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:13:16,900 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:13:16,902 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:13:16,904 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:13:16,905 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:13:16,906 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:13:16,907 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:13:16,907 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:13:16,909 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:13:16,910 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:13:16,911 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:13:16,912 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:13:16,913 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:13:16,916 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:13:16,918 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:13:16,920 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:13:16,921 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:13:16,923 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:13:16,924 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:13:16,927 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:13:16,927 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:13:16,927 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:13:16,928 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:13:16,929 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:13:16,930 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:13:16,930 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:13:16,931 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:13:16,932 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:13:16,933 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:13:16,935 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:13:16,935 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:13:16,936 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:13:16,936 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:13:16,936 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:13:16,937 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:13:16,938 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:13:16,939 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 20:13:16,967 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:13:16,967 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:13:16,969 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:13:16,969 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:13:16,969 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:13:16,969 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:13:16,970 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:13:16,970 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:13:16,970 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:13:16,970 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:13:16,970 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:13:16,971 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:13:16,971 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:13:16,971 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:13:16,971 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:13:16,971 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:13:16,972 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:13:16,972 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:13:16,972 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:13:16,972 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:13:16,972 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:13:16,973 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:13:16,973 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:13:16,973 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:13:16,973 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:13:16,973 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:13:16,974 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:13:16,974 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:13:16,974 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:13:16,974 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:13:17,455 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:13:17,478 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:13:17,483 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:13:17,485 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:13:17,487 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:13:17,488 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c
[2020-09-24 20:13:17,580 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ad7174a/7be4bb56ff0743409240f98136adec2e/FLAG496524d83
[2020-09-24 20:13:18,196 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:13:18,196 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c
[2020-09-24 20:13:18,212 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ad7174a/7be4bb56ff0743409240f98136adec2e/FLAG496524d83
[2020-09-24 20:13:18,484 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ad7174a/7be4bb56ff0743409240f98136adec2e
[2020-09-24 20:13:18,497 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:13:18,504 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:13:18,505 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:13:18,506 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:13:18,510 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:13:18,511 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:18" (1/1) ...
[2020-09-24 20:13:18,515 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:18, skipping insertion in model container
[2020-09-24 20:13:18,515 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:13:18" (1/1) ...
[2020-09-24 20:13:18,524 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:13:18,584 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:13:19,068 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:13:19,083 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:13:19,205 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:13:19,252 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:13:19,252 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19 WrapperNode
[2020-09-24 20:13:19,252 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:13:19,253 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:13:19,253 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:13:19,254 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:13:19,272 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,272 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,294 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,294 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,347 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,357 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,362 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
[2020-09-24 20:13:19,369 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:13:19,370 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:13:19,370 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:13:19,370 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:13:19,372 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:13:19,448 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:13:19,449 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:13:19,449 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:13:19,449 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:13:19,449 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:13:19,450 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:13:19,450 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:13:19,450 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:13:19,450 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:13:19,450 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:13:19,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 20:13:19,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:13:19,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:13:19,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:13:19,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:13:19,452 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:13:19,452 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:13:19,452 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:13:19,452 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:13:19,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:13:19,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:13:19,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:13:19,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:13:19,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:13:19,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:13:19,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:13:19,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:13:19,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:13:19,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:13:19,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:13:19,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:13:19,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:13:19,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 20:13:19,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:13:19,457 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:13:19,458 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:13:19,459 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:13:19,459 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:13:19,459 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:13:19,459 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:13:19,460 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:13:19,460 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 20:13:19,460 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:13:19,460 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:13:19,461 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:13:19,461 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:13:19,461 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:13:19,462 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:13:19,463 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:13:19,464 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:13:19,464 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:13:19,465 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:13:19,466 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:13:19,466 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:13:19,466 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:13:19,467 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:13:19,467 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:13:19,467 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:13:19,467 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:13:19,468 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:13:19,468 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:13:19,468 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:13:19,469 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:13:19,469 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:13:19,469 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 20:13:19,469 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 20:13:19,469 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:13:19,470 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:13:19,470 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 20:13:19,470 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:13:19,470 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:13:19,470 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:13:20,619 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:13:20,619 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:13:20,627 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:20 BoogieIcfgContainer
[2020-09-24 20:13:20,627 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:13:20,628 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:13:20,628 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:13:20,632 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:13:20,632 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:13:18" (1/3) ...
[2020-09-24 20:13:20,633 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f3dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:20, skipping insertion in model container
[2020-09-24 20:13:20,634 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:19" (2/3) ...
[2020-09-24 20:13:20,634 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f3dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:20, skipping insertion in model container
[2020-09-24 20:13:20,634 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:20" (3/3) ...
[2020-09-24 20:13:20,636 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c
[2020-09-24 20:13:20,648 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:13:20,660 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:13:20,682 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:13:20,715 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:13:20,716 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:13:20,716 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:13:20,716 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:13:20,716 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:13:20,716 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:13:20,716 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:13:20,717 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:13:20,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 316 states.
[2020-09-24 20:13:20,763 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:13:20,763 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:20,765 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:13:20,765 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:20,773 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:20,774 INFO  L82        PathProgramCache]: Analyzing trace with hash 2092560802, now seen corresponding path program 1 times
[2020-09-24 20:13:20,785 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:20,785 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965031079]
[2020-09-24 20:13:20,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:21,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:21,288 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:21,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:21,988 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:25,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:25,447 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:13:25,447 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:13:25,448 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4348
[2020-09-24 20:13:25,451 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:25,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:13:25,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 20:13:25,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 20:13:25,453 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:13:25,967 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:25,975 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:26,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,504 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,504 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:26,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 437
[2020-09-24 20:13:26,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:13:26,507 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:26,579 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:26,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,582 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,585 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,585 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:26,586 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,586 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:26,586 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:26,587 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,589 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:26,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,594 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,595 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:26,595 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,595 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:26,595 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:26,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,598 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:26,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,610 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:26,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 20:13:26,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:26,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:26,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,617 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,620 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,620 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:26,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,621 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:26,621 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:26,622 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,623 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:13:26,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,629 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,630 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:26,630 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,630 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:26,630 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:26,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:26,631 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,633 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:13:26,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,646 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,647 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:26,647 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,647 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:13:26,648 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:13:26,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:26,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:26,649 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:13:26,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:26,684 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:26,686 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:26,687 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:26,687 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:26,687 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:26,687 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:26,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:26,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:26,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:26,688 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:26,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:13:26,731 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965031079]
[2020-09-24 20:13:26,733 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:26,733 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:13:26,734 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662166457]
[2020-09-24 20:13:26,741 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:13:26,742 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:26,760 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:13:26,761 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:13:26,764 INFO  L87              Difference]: Start difference. First operand 316 states. Second operand 8 states.
[2020-09-24 20:13:27,386 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:29,235 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:29,544 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:29,853 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:30,268 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:30,609 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:31,207 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:31,565 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:32,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:32,941 INFO  L93              Difference]: Finished difference Result 637 states and 790 transitions.
[2020-09-24 20:13:32,944 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:13:32,946 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:13:32,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:32,967 INFO  L225             Difference]: With dead ends: 637
[2020-09-24 20:13:32,967 INFO  L226             Difference]: Without dead ends: 425
[2020-09-24 20:13:32,974 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:13:32,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 425 states.
[2020-09-24 20:13:33,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 378.
[2020-09-24 20:13:33,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 378 states.
[2020-09-24 20:13:33,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 422 transitions.
[2020-09-24 20:13:33,153 INFO  L78                 Accepts]: Start accepts. Automaton has 378 states and 422 transitions. Word has length 153
[2020-09-24 20:13:33,154 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:33,154 INFO  L479      AbstractCegarLoop]: Abstraction has 378 states and 422 transitions.
[2020-09-24 20:13:33,154 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:13:33,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 378 states and 422 transitions.
[2020-09-24 20:13:33,161 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 20:13:33,161 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:33,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:13:33,162 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:13:33,162 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:33,162 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:33,163 INFO  L82        PathProgramCache]: Analyzing trace with hash -199733169, now seen corresponding path program 1 times
[2020-09-24 20:13:33,163 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:33,163 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662640861]
[2020-09-24 20:13:33,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:33,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:33,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:33,586 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:33,586 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 20:13:33,586 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:33,587 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 361
[2020-09-24 20:13:33,587 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:33,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:33,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 20:13:33,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:13:33,588 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:33,877 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:33,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:33,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:33,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,156 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,157 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:34,157 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 242
[2020-09-24 20:13:34,158 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 20:13:34,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,201 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:34,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,203 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,207 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,208 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:34,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:34,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:34,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:34,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,216 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,217 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:34,217 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,217 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:34,217 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:34,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:34,220 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:34,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,230 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:34,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,231 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:13:34,231 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:34,232 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,234 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:34,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:34,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:34,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:34,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:13:34,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,256 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,262 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,263 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:13:34,263 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,263 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:13:34,263 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:34,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:34,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 20:13:34,264 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,266 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 20:13:34,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,268 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:34,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:34,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:34,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:34,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:34,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 20:13:34,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,277 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:34,278 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,278 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:34,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:34,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:34,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:34,279 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 20:13:34,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:34,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:34,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:34,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:34,284 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:34,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:34,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:34,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:34,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:34,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:34,286 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:34,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:13:34,328 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662640861]
[2020-09-24 20:13:34,328 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:34,329 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 20:13:34,329 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85338675]
[2020-09-24 20:13:34,331 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 20:13:34,331 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:34,332 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 20:13:34,332 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 20:13:34,332 INFO  L87              Difference]: Start difference. First operand 378 states and 422 transitions. Second operand 5 states.
[2020-09-24 20:13:34,902 WARN  L193               SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:36,041 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:36,042 INFO  L93              Difference]: Finished difference Result 724 states and 862 transitions.
[2020-09-24 20:13:36,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 20:13:36,042 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-24 20:13:36,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:36,049 INFO  L225             Difference]: With dead ends: 724
[2020-09-24 20:13:36,049 INFO  L226             Difference]: Without dead ends: 456
[2020-09-24 20:13:36,052 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 20:13:36,053 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 456 states.
[2020-09-24 20:13:36,134 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 383.
[2020-09-24 20:13:36,135 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 383 states.
[2020-09-24 20:13:36,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 427 transitions.
[2020-09-24 20:13:36,138 INFO  L78                 Accepts]: Start accepts. Automaton has 383 states and 427 transitions. Word has length 168
[2020-09-24 20:13:36,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:36,139 INFO  L479      AbstractCegarLoop]: Abstraction has 383 states and 427 transitions.
[2020-09-24 20:13:36,139 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 20:13:36,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 383 states and 427 transitions.
[2020-09-24 20:13:36,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-24 20:13:36,143 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:36,143 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]
[2020-09-24 20:13:36,143 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:13:36,144 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:36,144 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:36,144 INFO  L82        PathProgramCache]: Analyzing trace with hash -1023073227, now seen corresponding path program 1 times
[2020-09-24 20:13:36,144 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:36,145 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266436064]
[2020-09-24 20:13:36,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:36,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:13:36,221 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:13:36,222 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:13:36,228 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:13:36,257 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:13:36 BoogieIcfgContainer
[2020-09-24 20:13:36,257 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:13:36,259 INFO  L168              Benchmark]: Toolchain (without parser) took 17759.95 ms. Allocated memory was 141.6 MB in the beginning and 446.2 MB in the end (delta: 304.6 MB). Free memory was 99.8 MB in the beginning and 111.8 MB in the end (delta: -12.0 MB). Peak memory consumption was 292.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,260 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,261 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 747.60 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 99.1 MB in the beginning and 168.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,262 INFO  L168              Benchmark]: Boogie Preprocessor took 116.48 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 164.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,263 INFO  L168              Benchmark]: RCFGBuilder took 1256.88 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 163.5 MB in the beginning and 171.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,264 INFO  L168              Benchmark]: TraceAbstraction took 15628.83 ms. Allocated memory was 231.7 MB in the beginning and 446.2 MB in the end (delta: 214.4 MB). Free memory was 171.8 MB in the beginning and 111.8 MB in the end (delta: 60.0 MB). Peak memory consumption was 274.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:36,268 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 747.60 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 99.1 MB in the beginning and 168.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 116.48 ms. Allocated memory is still 201.3 MB. Free memory was 168.3 MB in the beginning and 164.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1256.88 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 163.5 MB in the beginning and 171.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15628.83 ms. Allocated memory was 231.7 MB in the beginning and 446.2 MB in the end (delta: 214.4 MB). Free memory was 171.8 MB in the beginning and 111.8 MB in the end (delta: 60.0 MB). Peak memory consumption was 274.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 580]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L83]               int waterLevel  =    1;
[L84]               int methaneLevelCritical  =    0;
[L341]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L585]              int cleanupTimeShifts  =    4;
[L686]              int pumpRunning  =    0;
[L687]              int systemActive  =    1;
[L661]              int retValue_acc ;
[L662]              int tmp ;
[L666]  FCALL       select_helpers()
[L667]  FCALL       select_features()
[L668]  CALL, EXPR  valid_product()
[L567]              int retValue_acc ;
[L570]              retValue_acc = 1
[L571]              return (retValue_acc);
[L668]  RET, EXPR   valid_product()
[L668]              tmp = valid_product()
[L670]  COND TRUE   \read(tmp)
[L672]  FCALL       setup()
[L673]  CALL        runTest()
[L655]  CALL        test()
[L882]              int splverifierCounter ;
[L883]              int tmp ;
[L884]              int tmp___0 ;
[L885]              int tmp___1 ;
[L886]              int tmp___2 ;
[L889]              splverifierCounter = 0
[L891]  COND TRUE   1
[L893]  COND TRUE   splverifierCounter < 4
[L899]              tmp = __VERIFIER_nondet_int()
[L901]  COND TRUE   \read(tmp)
[L903]  CALL        waterRise()
[L101]  COND TRUE   waterLevel < 2
[L102]              waterLevel = waterLevel + 1
[L903]  RET         waterRise()
[L909]              tmp___0 = __VERIFIER_nondet_int()
[L911]  COND FALSE  !(\read(tmp___0))
[L919]              tmp___2 = __VERIFIER_nondet_int()
[L921]  COND TRUE   \read(tmp___2)
[L934]  CALL        timeShift()
[L693]  COND FALSE  !(\read(pumpRunning))
[L700]  COND TRUE   \read(systemActive)
[L702]  CALL        processEnvironment()
[L748]              int tmp ;
[L751]  COND FALSE  !(\read(pumpRunning))
[L766]  CALL        processEnvironment__wrappee__methaneQuery()
[L722]              int tmp ;
[L725]  COND FALSE  !(\read(pumpRunning))
[L740]  FCALL       processEnvironment__wrappee__base()
[L766]  RET         processEnvironment__wrappee__methaneQuery()
[L702]  RET         processEnvironment()
[L708]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L122]              int retValue_acc ;
[L125]              retValue_acc = methaneLevelCritical
[L126]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L154]              int retValue_acc ;
[L157]              retValue_acc = waterLevel
[L158]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L817]              int retValue_acc ;
[L820]              retValue_acc = pumpRunning
[L821]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L580]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 497 SDtfs, 805 SDslu, 684 SDs, 0 SdLazy, 1551 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred 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, 120 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137930 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...