/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:21:20,289 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:21:20,293 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:21:20,325 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:21:20,326 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:21:20,334 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:21:20,336 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:21:20,341 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:21:20,344 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:21:20,347 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:21:20,349 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:21:20,351 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:21:20,351 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:21:20,354 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:21:20,357 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:21:20,359 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:21:20,361 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:21:20,363 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:21:20,364 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:21:20,375 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:21:20,377 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:21:20,379 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:21:20,380 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:21:20,381 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:21:20,396 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:21:20,396 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:21:20,397 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:21:20,398 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:21:20,398 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:21:20,403 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:21:20,403 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:21:20,404 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:21:20,408 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:21:20,409 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:21:20,413 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:21:20,414 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-24 21:21:20,416 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:21:20,416 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:21:20,418 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:21:20,419 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:21:20,420 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:21:20,448 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:21:20,449 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:21:20,450 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:21:20,450 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:21:20,450 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:21:20,451 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:21:20,451 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:21:20,451 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:21:20,451 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:21:20,451 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:21:20,452 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:21:20,452 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:21:20,452 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:21:20,452 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:21:20,452 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:21:20,453 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:21:20,453 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:21:20,453 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:21:20,453 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:21:20,453 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:21:20,454 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:21:20,454 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:20,454 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:21:20,454 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:21:20,455 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:21:20,455 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:21:20,455 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:21:20,455 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:21:20,455 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:21:20,456 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:21:20,950 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:21:20,966 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:21:20,971 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:21:20,973 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:21:20,974 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:21:20,975 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-24 21:21:21,069 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3e5828f4/117fe2a668d944f694c1f55c10ffd53d/FLAG1a4ee6eba
[2020-09-24 21:21:21,689 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:21:21,690 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-24 21:21:21,705 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3e5828f4/117fe2a668d944f694c1f55c10ffd53d/FLAG1a4ee6eba
[2020-09-24 21:21:21,962 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3e5828f4/117fe2a668d944f694c1f55c10ffd53d
[2020-09-24 21:21:21,975 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:21:21,981 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:21:21,982 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:21,982 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:21:21,987 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:21:21,988 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:21" (1/1) ...
[2020-09-24 21:21:21,996 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:21, skipping insertion in model container
[2020-09-24 21:21:21,996 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:21" (1/1) ...
[2020-09-24 21:21:22,005 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:21:22,066 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:22,494 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:22,601 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:22,690 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:22,729 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:22,730 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22 WrapperNode
[2020-09-24 21:21:22,730 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:22,731 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:22,731 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:22,731 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:22,747 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,748 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,769 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,769 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,802 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,814 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,819 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,827 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:22,828 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:22,828 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:22,828 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:22,830 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:22,927 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:22,927 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:22,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:22,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:22,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:22,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:22,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:22,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:22,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:22,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:22,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:22,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:22,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:22,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:22,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:22,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:22,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:22,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:22,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:22,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:22,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:22,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:22,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:22,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:22,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:22,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:22,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:22,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 21:21:22,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 21:21:22,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:21:22,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:22,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 21:21:22,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:22,939 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:22,939 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:22,939 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:22,940 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:22,941 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:22,941 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:22,941 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:22,941 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:22,942 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:22,942 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:22,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:22,943 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:22,943 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:22,943 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:22,943 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:22,943 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:22,944 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:22,945 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:22,945 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:22,945 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:22,945 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:22,946 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:22,947 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:22,947 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:22,948 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:22,949 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:22,949 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 21:21:22,949 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:22,950 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:22,950 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 21:21:22,950 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:21:22,950 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:22,950 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:22,951 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 21:21:22,951 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:22,951 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:22,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:22,951 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:24,196 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:24,196 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:24,209 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:24 BoogieIcfgContainer
[2020-09-24 21:21:24,210 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:24,214 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:24,214 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:24,219 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:24,219 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:21" (1/3) ...
[2020-09-24 21:21:24,220 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6db02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:24, skipping insertion in model container
[2020-09-24 21:21:24,220 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22" (2/3) ...
[2020-09-24 21:21:24,221 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6db02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:24, skipping insertion in model container
[2020-09-24 21:21:24,222 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:24" (3/3) ...
[2020-09-24 21:21:24,224 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c
[2020-09-24 21:21:24,237 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:24,252 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:24,279 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:24,327 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:24,328 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:24,328 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:24,328 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:24,328 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:24,328 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:24,328 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:24,329 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:24,366 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states.
[2020-09-24 21:21:24,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:24,402 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:24,403 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:24,404 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:24,413 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:24,413 INFO  L82        PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times
[2020-09-24 21:21:24,426 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:24,427 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330992691]
[2020-09-24 21:21:24,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:24,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:24,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:25,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:26,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:29,843 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:29,843 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:29,844 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:29,844 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5032
[2020-09-24 21:21:29,847 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:29,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 21:21:29,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 21:21:29,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-24 21:21:29,849 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 21:21:30,542 WARN  L193               SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:30,550 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:30,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,980 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,981 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:30,981 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,982 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 343
[2020-09-24 21:21:30,982 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 21:21:30,984 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,114 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:31,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,122 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,122 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:31,122 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:31,123 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:31,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:31,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:31,124 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:31,126 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:31,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,129 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,133 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:31,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:31,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:31,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:31,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:31,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:31,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,154 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,155 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:31,155 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 21:21:31,156 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:31,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:31,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:31,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,161 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:31,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,164 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,169 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,170 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:31,170 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,171 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:31,171 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:31,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:31,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:31,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:31,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,178 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,181 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,181 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:31,182 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:31,182 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:31,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:31,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:31,184 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,186 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:31,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,189 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:31,194 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,194 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:31,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:31,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:31,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:31,196 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:31,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:31,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,204 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:31,205 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:31,205 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:31,205 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:31,206 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:31,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:31,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:31,207 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:31,207 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:31,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:31,268 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330992691]
[2020-09-24 21:21:31,270 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:31,271 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:21:31,272 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855401653]
[2020-09-24 21:21:31,281 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:21:31,281 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:31,308 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:21:31,310 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:21:31,314 INFO  L87              Difference]: Start difference. First operand 302 states. Second operand 4 states.
[2020-09-24 21:21:32,275 WARN  L193               SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:34,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:34,380 INFO  L93              Difference]: Finished difference Result 623 states and 756 transitions.
[2020-09-24 21:21:34,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:21:34,384 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:21:34,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:34,420 INFO  L225             Difference]: With dead ends: 623
[2020-09-24 21:21:34,421 INFO  L226             Difference]: Without dead ends: 438
[2020-09-24 21:21:34,432 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:21:34,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-24 21:21:34,636 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370.
[2020-09-24 21:21:34,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 370 states.
[2020-09-24 21:21:34,640 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions.
[2020-09-24 21:21:34,642 INFO  L78                 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153
[2020-09-24 21:21:34,643 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:34,643 INFO  L479      AbstractCegarLoop]: Abstraction has 370 states and 411 transitions.
[2020-09-24 21:21:34,644 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:21:34,644 INFO  L276                IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions.
[2020-09-24 21:21:34,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 21:21:34,647 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:34,648 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]
[2020-09-24 21:21:34,648 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:34,648 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:34,649 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:34,649 INFO  L82        PathProgramCache]: Analyzing trace with hash 1437801491, now seen corresponding path program 1 times
[2020-09-24 21:21:34,649 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:34,649 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955306582]
[2020-09-24 21:21:34,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:34,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:34,760 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:34,981 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:38,376 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:38,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-24 21:21:38,377 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:21:38,377 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3668
[2020-09-24 21:21:38,378 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:38,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:38,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 21:21:38,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 102
[2020-09-24 21:21:38,380 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 21:21:38,851 WARN  L193               SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:38,853 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:38,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:38,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,268 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:39,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 366
[2020-09-24 21:21:39,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 21:21:39,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,335 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:39,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,345 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:39,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:39,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:39,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,350 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:39,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,356 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:39,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,357 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:39,357 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:39,359 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,363 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:39,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,378 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,378 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:39,379 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,379 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:21:39,379 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:39,381 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:39,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,386 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,391 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:39,391 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,392 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:39,392 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:39,394 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,410 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:21:39,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,413 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,417 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,418 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:21:39,418 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,418 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:39,418 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:21:39,419 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:39,423 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:39,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,425 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,428 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,428 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:39,428 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,429 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:39,429 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,430 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:39,430 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,430 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:39,431 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,432 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 21:21:39,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,436 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,440 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,440 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:39,441 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,441 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:39,441 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:39,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,443 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:39,444 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,450 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 21:21:39,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,467 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,478 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:39,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:21:39,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:39,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:39,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:39,482 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,562 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 21:21:39,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,565 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,567 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:39,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:39,579 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:39,579 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:39,580 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:39,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:39,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:39,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:39,581 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:39,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:39,650 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955306582]
[2020-09-24 21:21:39,650 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:39,650 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 21:21:39,651 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136652274]
[2020-09-24 21:21:39,656 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 21:21:39,656 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:39,657 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 21:21:39,657 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 21:21:39,658 INFO  L87              Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 9 states.
[2020-09-24 21:21:40,341 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:42,453 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:42,936 WARN  L193               SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190
[2020-09-24 21:21:43,291 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:43,594 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:43,916 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:44,184 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 21:21:44,457 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:45,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:45,698 INFO  L93              Difference]: Finished difference Result 1061 states and 1336 transitions.
[2020-09-24 21:21:45,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 21:21:45,703 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 162
[2020-09-24 21:21:45,704 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:45,716 INFO  L225             Difference]: With dead ends: 1061
[2020-09-24 21:21:45,716 INFO  L226             Difference]: Without dead ends: 801
[2020-09-24 21:21:45,718 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 21:21:45,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 801 states.
[2020-09-24 21:21:45,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 617.
[2020-09-24 21:21:45,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 617 states.
[2020-09-24 21:21:45,839 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 713 transitions.
[2020-09-24 21:21:45,840 INFO  L78                 Accepts]: Start accepts. Automaton has 617 states and 713 transitions. Word has length 162
[2020-09-24 21:21:45,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:45,841 INFO  L479      AbstractCegarLoop]: Abstraction has 617 states and 713 transitions.
[2020-09-24 21:21:45,841 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 21:21:45,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 617 states and 713 transitions.
[2020-09-24 21:21:45,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-24 21:21:45,845 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:45,845 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]
[2020-09-24 21:21:45,845 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:45,845 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:45,846 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:45,846 INFO  L82        PathProgramCache]: Analyzing trace with hash 1393167539, now seen corresponding path program 1 times
[2020-09-24 21:21:45,846 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:45,846 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838028664]
[2020-09-24 21:21:45,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:45,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:45,922 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:45,922 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:45,928 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:45,956 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:45 BoogieIcfgContainer
[2020-09-24 21:21:45,956 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:45,961 INFO  L168              Benchmark]: Toolchain (without parser) took 23981.37 ms. Allocated memory was 140.5 MB in the beginning and 534.8 MB in the end (delta: 394.3 MB). Free memory was 102.9 MB in the beginning and 306.3 MB in the end (delta: -203.4 MB). Peak memory consumption was 190.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,962 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,963 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 748.37 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 172.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,964 INFO  L168              Benchmark]: Boogie Preprocessor took 96.75 ms. Allocated memory is still 203.4 MB. Free memory was 172.9 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,965 INFO  L168              Benchmark]: RCFGBuilder took 1381.82 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 168.8 MB in the beginning and 177.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,966 INFO  L168              Benchmark]: TraceAbstraction took 21742.63 ms. Allocated memory was 237.5 MB in the beginning and 534.8 MB in the end (delta: 297.3 MB). Free memory was 177.8 MB in the beginning and 306.3 MB in the end (delta: -128.5 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:45,970 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 748.37 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 172.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.75 ms. Allocated memory is still 203.4 MB. Free memory was 172.9 MB in the beginning and 168.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1381.82 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 168.8 MB in the beginning and 177.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 21742.63 ms. Allocated memory was 237.5 MB in the beginning and 534.8 MB in the end (delta: 297.3 MB). Free memory was 177.8 MB in the beginning and 306.3 MB in the end (delta: -128.5 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L247]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L444]              int cleanupTimeShifts  =    4;
[L590]              int pumpRunning  =    0;
[L591]              int systemActive  =    1;
[L834]              int waterLevel  =    1;
[L835]              int methaneLevelCritical  =    0;
[L522]              int retValue_acc ;
[L523]              int tmp ;
[L527]  FCALL       select_helpers()
[L528]  FCALL       select_features()
[L529]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L529]  RET, EXPR   valid_product()
[L529]              tmp = valid_product()
[L531]  COND TRUE   \read(tmp)
[L533]  FCALL       setup()
[L534]  CALL        runTest()
[L516]  CALL        test()
[L766]              int splverifierCounter ;
[L767]              int tmp ;
[L768]              int tmp___0 ;
[L769]              int tmp___1 ;
[L770]              int tmp___2 ;
[L773]              splverifierCounter = 0
[L775]  COND TRUE   1
[L777]  COND TRUE   splverifierCounter < 4
[L783]              tmp = __VERIFIER_nondet_int()
[L785]  COND TRUE   \read(tmp)
[L787]  CALL        waterRise()
[L852]  COND TRUE   waterLevel < 2
[L853]              waterLevel = waterLevel + 1
[L787]  RET         waterRise()
[L793]              tmp___0 = __VERIFIER_nondet_int()
[L795]  COND FALSE  !(\read(tmp___0))
[L803]              tmp___2 = __VERIFIER_nondet_int()
[L805]  COND TRUE   \read(tmp___2)
[L807]  CALL        startSystem()
[L760]              systemActive = 1
[L807]  RET         startSystem()
[L822]  CALL        timeShift()
[L597]  COND FALSE  !(\read(pumpRunning))
[L604]  COND TRUE   \read(systemActive)
[L606]  CALL        processEnvironment()
[L626]              int tmp ;
[L629]  COND FALSE  !(\read(pumpRunning))
[L644]  FCALL       processEnvironment__wrappee__base()
[L606]  RET         processEnvironment()
[L612]  CALL        __utac_acc__Specification3_spec__1()
[L550]              int tmp ;
[L551]              int tmp___0 ;
[L552]              int tmp___1 ;
[L556]  CALL, EXPR  isMethaneLevelCritical()
[L873]              int retValue_acc ;
[L876]              retValue_acc = methaneLevelCritical
[L877]              return (retValue_acc);
[L556]  RET, EXPR   isMethaneLevelCritical()
[L556]              tmp = isMethaneLevelCritical()
[L558]  COND FALSE  !(\read(tmp))
[L562]  CALL, EXPR  getWaterLevel()
[L905]              int retValue_acc ;
[L908]              retValue_acc = waterLevel
[L909]              return (retValue_acc);
[L562]  RET, EXPR   getWaterLevel()
[L562]              tmp___0 = getWaterLevel()
[L564]  COND TRUE   tmp___0 == 2
[L566]  CALL, EXPR  isPumpRunning()
[L678]              int retValue_acc ;
[L681]              retValue_acc = pumpRunning
[L682]              return (retValue_acc);
[L566]  RET, EXPR   isPumpRunning()
[L566]              tmp___1 = isPumpRunning()
[L568]  COND FALSE  !(\read(tmp___1))
[L572]  CALL        __automaton_fail()
[L927]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 481 SDtfs, 889 SDslu, 717 SDs, 0 SdLazy, 1655 SolverSat, 285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 252 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 132490 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...