/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_product15.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:12:52,390 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:52,394 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:52,420 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:52,420 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:52,421 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:52,423 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:52,425 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:52,426 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:52,427 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:52,428 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:52,430 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:52,430 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:52,431 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:52,432 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:52,433 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:52,434 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:52,435 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:52,437 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:52,440 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:52,441 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:52,442 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:52,447 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:52,448 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:52,450 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:52,451 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:52,451 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:52,455 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:52,455 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:52,456 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:52,456 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:52,460 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:52,461 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:52,462 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:52,463 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:52,463 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:52,466 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:52,466 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:52,466 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:52,467 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:52,469 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:52,470 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 20:12:52,519 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:52,519 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:52,521 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:52,522 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:52,522 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:52,522 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:52,523 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:52,523 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:52,523 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:52,523 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:52,524 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:52,525 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:52,525 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:52,526 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:52,526 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:52,526 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:52,526 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:52,526 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:52,527 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:52,527 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:52,527 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:52,527 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:52,528 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:52,528 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:52,528 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:52,528 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:52,528 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:52,529 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:52,529 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:52,529 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 20:12:53,017 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:53,034 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:53,038 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:53,040 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:53,041 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:53,042 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-24 20:12:53,112 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65f7b54e2/b8c646bdd3b94d54b67dbb12e6ab1d68/FLAGbd4eb224c
[2020-09-24 20:12:53,742 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:53,743 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-24 20:12:53,758 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65f7b54e2/b8c646bdd3b94d54b67dbb12e6ab1d68/FLAGbd4eb224c
[2020-09-24 20:12:54,027 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65f7b54e2/b8c646bdd3b94d54b67dbb12e6ab1d68
[2020-09-24 20:12:54,040 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:54,046 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:54,047 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:54,047 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:54,051 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:54,052 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,057 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54, skipping insertion in model container
[2020-09-24 20:12:54,057 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,067 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:12:54,145 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:12:54,518 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:54,538 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:12:54,700 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:54,738 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:12:54,738 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54 WrapperNode
[2020-09-24 20:12:54,738 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:54,739 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:12:54,739 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:12:54,740 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:12:54,757 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,757 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,778 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,778 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,811 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,822 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,827 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
[2020-09-24 20:12:54,835 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:12:54,836 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:12:54,836 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:12:54,836 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:12:54,838 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:54,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:12:54,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:12:54,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:54,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:12:54,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:12:54,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:12:54,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 20:12:54,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:12:54,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:12:54,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:12:54,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:12:54,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:12:54,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 20:12:54,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:12:54,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:54,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:54,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:54,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:12:54,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:12:54,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:12:54,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:12:54,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:12:54,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:12:54,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:12:54,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:12:54,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:12:54,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:12:54,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:12:54,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:12:54,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:12:54,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:12:54,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:12:54,938 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:12:54,938 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:12:54,938 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:12:54,938 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:12:54,938 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:12:54,939 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 20:12:54,940 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:54,940 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:12:54,940 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:12:54,940 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:12:54,941 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 20:12:54,941 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:12:54,941 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:12:54,941 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:54,942 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:12:54,943 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:12:54,943 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:12:54,943 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:12:54,943 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:54,943 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:12:54,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:54,944 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:54,945 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:12:54,946 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:12:54,946 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:12:54,946 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:12:54,947 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:12:54,948 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:12:54,949 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:12:56,047 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:12:56,047 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:12:56,054 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:56 BoogieIcfgContainer
[2020-09-24 20:12:56,054 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:12:56,056 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:12:56,056 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:12:56,060 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:12:56,060 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:54" (1/3) ...
[2020-09-24 20:12:56,061 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35980a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:56, skipping insertion in model container
[2020-09-24 20:12:56,061 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:54" (2/3) ...
[2020-09-24 20:12:56,062 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35980a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:56, skipping insertion in model container
[2020-09-24 20:12:56,062 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:56" (3/3) ...
[2020-09-24 20:12:56,064 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c
[2020-09-24 20:12:56,076 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:12:56,087 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:12:56,109 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:12:56,139 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:12:56,139 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:12:56,139 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:12:56,140 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:12:56,140 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:12:56,140 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:12:56,140 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:12:56,140 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:12:56,170 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states.
[2020-09-24 20:12:56,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:12:56,188 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:56,189 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 20:12:56,189 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:56,196 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:56,197 INFO  L82        PathProgramCache]: Analyzing trace with hash -572002072, now seen corresponding path program 1 times
[2020-09-24 20:12:56,206 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:56,206 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017870564]
[2020-09-24 20:12:56,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:56,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:56,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:56,923 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:58,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:01,598 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:01,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:13:01,608 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:13:01,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5049
[2020-09-24 20:13:01,612 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:01,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:13:01,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 20:13:01,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-24 20:13:01,614 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 20:13:02,151 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:02,154 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:02,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,260 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,580 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:02,581 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,581 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 372
[2020-09-24 20:13:02,590 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 20:13:02,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 20:13:02,703 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:02,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,711 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,712 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:02,712 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,712 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:02,713 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:02,714 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,717 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:02,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,724 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,725 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:02,725 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,726 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:02,726 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:02,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,730 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:02,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,734 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,744 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:02,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:13:02,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:02,747 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:02,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,758 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:02,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:02,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:02,761 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,763 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:13:02,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,771 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,772 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:02,772 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,773 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:13:02,773 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,773 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:02,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:02,775 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,777 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:13:02,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,782 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,794 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,794 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:02,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,795 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 20:13:02,795 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:13:02,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:02,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:02,796 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:02,824 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:13:02,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:02,829 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:02,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:02,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:02,830 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:02,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:02,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:02,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:02,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:02,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:02,916 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 20:13:02,917 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017870564]
[2020-09-24 20:13:02,921 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:02,922 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:13:02,923 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529565399]
[2020-09-24 20:13:02,929 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:13:02,930 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:02,949 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:13:02,950 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:13:02,953 INFO  L87              Difference]: Start difference. First operand 291 states. Second operand 8 states.
[2020-09-24 20:13:03,563 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:05,071 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:05,431 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:05,860 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:06,226 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:06,554 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:07,146 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:07,462 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:08,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:08,553 INFO  L93              Difference]: Finished difference Result 561 states and 704 transitions.
[2020-09-24 20:13:08,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:13:08,557 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:13:08,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:08,579 INFO  L225             Difference]: With dead ends: 561
[2020-09-24 20:13:08,579 INFO  L226             Difference]: Without dead ends: 374
[2020-09-24 20:13:08,586 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 20:13:08,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2020-09-24 20:13:08,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 328.
[2020-09-24 20:13:08,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 328 states.
[2020-09-24 20:13:08,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 366 transitions.
[2020-09-24 20:13:08,758 INFO  L78                 Accepts]: Start accepts. Automaton has 328 states and 366 transitions. Word has length 153
[2020-09-24 20:13:08,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:08,760 INFO  L479      AbstractCegarLoop]: Abstraction has 328 states and 366 transitions.
[2020-09-24 20:13:08,760 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:13:08,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 328 states and 366 transitions.
[2020-09-24 20:13:08,766 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 20:13:08,766 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:08,766 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 20:13:08,767 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:13:08,767 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:08,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:08,768 INFO  L82        PathProgramCache]: Analyzing trace with hash 876886047, now seen corresponding path program 1 times
[2020-09-24 20:13:08,768 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:08,768 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877806052]
[2020-09-24 20:13:08,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:08,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,888 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:09,979 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:09,980 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 20:13:09,980 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:09,980 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1150
[2020-09-24 20:13:09,980 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:09,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 20:13:09,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 20:13:09,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 20:13:09,981 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:10,290 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:10,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:10,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,594 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,594 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:10,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,595 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 264
[2020-09-24 20:13:10,595 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 20:13:10,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:10,643 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:10,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,651 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,651 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:10,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,652 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:10,652 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:10,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:10,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,660 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,660 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:10,661 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,661 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:10,661 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:10,662 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:10,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,669 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,678 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,678 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:10,679 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:13:10,680 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:10,682 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,684 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:10,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,687 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,689 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,690 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:10,690 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,690 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:10,690 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:10,691 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:10,709 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:13:10,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,719 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:13:10,720 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,720 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:13:10,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:10,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:10,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 20:13:10,722 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 20:13:10,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,730 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:10,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,731 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:10,731 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:10,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:10,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:10,733 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,736 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 20:13:10,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,739 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,741 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,742 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:10,742 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,742 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:10,742 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:10,744 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:10,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:10,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 20:13:10,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 20:13:10,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:10,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:10,755 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:10,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:10,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:10,756 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:10,756 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:10,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:10,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:10,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:10,758 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:10,861 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 20:13:10,861 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877806052]
[2020-09-24 20:13:10,862 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:10,862 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 20:13:10,862 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063072469]
[2020-09-24 20:13:10,864 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 20:13:10,865 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:10,865 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 20:13:10,865 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 20:13:10,866 INFO  L87              Difference]: Start difference. First operand 328 states and 366 transitions. Second operand 5 states.
[2020-09-24 20:13:11,334 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:13,382 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:13,383 INFO  L93              Difference]: Finished difference Result 894 states and 1091 transitions.
[2020-09-24 20:13:13,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 20:13:13,385 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-24 20:13:13,386 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:13,394 INFO  L225             Difference]: With dead ends: 894
[2020-09-24 20:13:13,394 INFO  L226             Difference]: Without dead ends: 676
[2020-09-24 20:13:13,398 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 20:13:13,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 676 states.
[2020-09-24 20:13:13,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 547.
[2020-09-24 20:13:13,508 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 547 states.
[2020-09-24 20:13:13,512 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 629 transitions.
[2020-09-24 20:13:13,512 INFO  L78                 Accepts]: Start accepts. Automaton has 547 states and 629 transitions. Word has length 168
[2020-09-24 20:13:13,513 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:13,513 INFO  L479      AbstractCegarLoop]: Abstraction has 547 states and 629 transitions.
[2020-09-24 20:13:13,513 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 20:13:13,514 INFO  L276                IsEmpty]: Start isEmpty. Operand 547 states and 629 transitions.
[2020-09-24 20:13:13,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 20:13:13,519 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:13,519 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]
[2020-09-24 20:13:13,520 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:13:13,520 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:13,520 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:13,520 INFO  L82        PathProgramCache]: Analyzing trace with hash 942920496, now seen corresponding path program 1 times
[2020-09-24 20:13:13,520 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:13,521 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078987329]
[2020-09-24 20:13:13,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:13,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:13:13,596 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:13:13,597 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:13:13,602 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:13:13,629 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:13:13 BoogieIcfgContainer
[2020-09-24 20:13:13,629 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:13:13,631 INFO  L168              Benchmark]: Toolchain (without parser) took 19589.66 ms. Allocated memory was 138.9 MB in the beginning and 521.1 MB in the end (delta: 382.2 MB). Free memory was 101.3 MB in the beginning and 261.5 MB in the end (delta: -160.2 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,632 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,633 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 692.28 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.6 MB in the beginning and 168.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,634 INFO  L168              Benchmark]: Boogie Preprocessor took 96.37 ms. Allocated memory is still 200.3 MB. Free memory was 168.2 MB in the beginning and 164.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,635 INFO  L168              Benchmark]: RCFGBuilder took 1218.46 ms. Allocated memory was 200.3 MB in the beginning and 232.8 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 177.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,636 INFO  L168              Benchmark]: TraceAbstraction took 17573.74 ms. Allocated memory was 232.8 MB in the beginning and 521.1 MB in the end (delta: 288.4 MB). Free memory was 175.9 MB in the beginning and 261.5 MB in the end (delta: -85.6 MB). Peak memory consumption was 202.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:13,640 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 692.28 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.6 MB in the beginning and 168.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.37 ms. Allocated memory is still 200.3 MB. Free memory was 168.2 MB in the beginning and 164.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1218.46 ms. Allocated memory was 200.3 MB in the beginning and 232.8 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 177.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17573.74 ms. Allocated memory was 232.8 MB in the beginning and 521.1 MB in the end (delta: 288.4 MB). Free memory was 175.9 MB in the beginning and 261.5 MB in the end (delta: -85.6 MB). Peak memory consumption was 202.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L49]               int pumpRunning  =    0;
[L50]               int systemActive  =    1;
[L454]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L652]              int waterLevel  =    1;
[L653]              int methaneLevelCritical  =    0;
[L732]              int cleanupTimeShifts  =    4;
[L808]              int retValue_acc ;
[L809]              int tmp ;
[L813]  FCALL       select_helpers()
[L814]  FCALL       select_features()
[L815]  CALL, EXPR  valid_product()
[L901]              int retValue_acc ;
[L904]              retValue_acc = 1
[L905]              return (retValue_acc);
[L815]  RET, EXPR   valid_product()
[L815]              tmp = valid_product()
[L817]  COND TRUE   \read(tmp)
[L819]  FCALL       setup()
[L820]  CALL        runTest()
[L799]  CALL        test()
[L219]              int splverifierCounter ;
[L220]              int tmp ;
[L221]              int tmp___0 ;
[L222]              int tmp___1 ;
[L223]              int tmp___2 ;
[L226]              splverifierCounter = 0
[L228]  COND TRUE   1
[L230]  COND TRUE   splverifierCounter < 4
[L236]              tmp = __VERIFIER_nondet_int()
[L238]  COND TRUE   \read(tmp)
[L240]  CALL        waterRise()
[L670]  COND TRUE   waterLevel < 2
[L671]              waterLevel = waterLevel + 1
[L240]  RET         waterRise()
[L246]              tmp___0 = __VERIFIER_nondet_int()
[L248]  COND FALSE  !(\read(tmp___0))
[L256]              tmp___2 = __VERIFIER_nondet_int()
[L258]  COND TRUE   \read(tmp___2)
[L273]  CALL        timeShift()
[L57]   COND FALSE  !(\read(pumpRunning))
[L64]   COND TRUE   \read(systemActive)
[L66]   CALL        processEnvironment()
[L86]               int tmp ;
[L89]   COND FALSE  !(\read(pumpRunning))
[L104]  FCALL       processEnvironment__wrappee__methaneQuery()
[L66]   RET         processEnvironment()
[L72]   CALL        __utac_acc__Specification3_spec__1()
[L833]              int tmp ;
[L834]              int tmp___0 ;
[L835]              int tmp___1 ;
[L839]  CALL, EXPR  isMethaneLevelCritical()
[L691]              int retValue_acc ;
[L694]              retValue_acc = methaneLevelCritical
[L695]              return (retValue_acc);
[L839]  RET, EXPR   isMethaneLevelCritical()
[L839]              tmp = isMethaneLevelCritical()
[L841]  COND FALSE  !(\read(tmp))
[L845]  CALL, EXPR  getWaterLevel()
[L723]              int retValue_acc ;
[L726]              retValue_acc = waterLevel
[L727]              return (retValue_acc);
[L845]  RET, EXPR   getWaterLevel()
[L845]              tmp___0 = getWaterLevel()
[L847]  COND TRUE   tmp___0 == 2
[L849]  CALL, EXPR  isPumpRunning()
[L155]              int retValue_acc ;
[L158]              retValue_acc = pumpRunning
[L159]              return (retValue_acc);
[L849]  RET, EXPR   isPumpRunning()
[L849]              tmp___1 = isPumpRunning()
[L851]  COND FALSE  !(\read(tmp___1))
[L855]  CALL        __automaton_fail()
[L870]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 605 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 754 SDslu, 731 SDs, 0 SdLazy, 1555 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=547occurred 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, 175 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 138354 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...