/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:58:17,419 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:58:17,422 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:58:17,463 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:58:17,464 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:58:17,472 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:58:17,474 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:58:17,477 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:58:17,479 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:58:17,483 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:58:17,485 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:58:17,486 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:58:17,486 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:58:17,487 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:58:17,489 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:58:17,490 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:58:17,490 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:58:17,491 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:58:17,492 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:58:17,494 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:58:17,495 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:58:17,496 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:58:17,497 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:58:17,497 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:58:17,499 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:58:17,500 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:58:17,500 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:58:17,500 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:58:17,501 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:58:17,502 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:58:17,502 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:58:17,503 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:58:17,503 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:58:17,504 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:58:17,505 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:58:17,505 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:58:17,505 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:58:17,506 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:58:17,506 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:58:17,507 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:58:17,507 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:58:17,508 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-10-12 17:58:17,530 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:58:17,530 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:58:17,531 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:58:17,531 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:58:17,531 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:58:17,532 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:58:17,532 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:58:17,532 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:58:17,532 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:58:17,532 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:58:17,533 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:58:17,533 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:58:17,533 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:58:17,533 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:58:17,533 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:58:17,534 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:58:17,534 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:58:17,534 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:58:17,534 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:58:17,534 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:58:17,535 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:58:17,535 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:58:17,535 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:58:17,535 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:58:17,535 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:58:17,536 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:58:17,536 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:58:17,536 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:58:17,536 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:58:17,536 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 -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true;
[2020-10-12 17:58:17,805 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:58:17,816 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:58:17,820 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:58:17,821 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:58:17,822 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:58:17,826 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-10-12 17:58:17,901 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b16b05b6/f30fe47dbd954f9eb33289e6dba9d89d/FLAGbac408ffd
[2020-10-12 17:58:18,382 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:58:18,388 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-10-12 17:58:18,400 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b16b05b6/f30fe47dbd954f9eb33289e6dba9d89d/FLAGbac408ffd
[2020-10-12 17:58:18,703 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b16b05b6/f30fe47dbd954f9eb33289e6dba9d89d
[2020-10-12 17:58:18,712 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:58:18,713 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:58:18,714 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:58:18,714 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:58:18,718 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:58:18,719 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:58:18" (1/1) ...
[2020-10-12 17:58:18,722 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:18, skipping insertion in model container
[2020-10-12 17:58:18,722 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:58:18" (1/1) ...
[2020-10-12 17:58:18,730 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:58:18,796 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:58:19,127 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:58:19,139 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:58:19,392 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:58:19,429 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:58:19,430 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19 WrapperNode
[2020-10-12 17:58:19,430 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:58:19,431 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:58:19,431 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:58:19,431 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:58:19,446 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,446 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,465 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,465 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,495 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,504 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,509 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
[2020-10-12 17:58:19,516 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:58:19,516 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:58:19,517 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:58:19,517 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:58:19,518 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:58:19,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:58:19,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:58:19,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:58:19,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:58:19,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:58:19,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-10-12 17:58:19,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-12 17:58:19,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-12 17:58:19,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:58:19,588 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:58:19,589 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:58:19,590 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-12 17:58:19,591 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:58:19,592 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:58:19,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:58:19,594 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-10-12 17:58:19,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:58:19,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:58:19,596 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:58:19,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:58:20,619 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:58:20,619 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:58:20,624 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:58:20 BoogieIcfgContainer
[2020-10-12 17:58:20,625 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:58:20,626 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:58:20,626 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:58:20,630 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:58:20,630 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:58:18" (1/3) ...
[2020-10-12 17:58:20,631 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:58:20, skipping insertion in model container
[2020-10-12 17:58:20,631 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:19" (2/3) ...
[2020-10-12 17:58:20,632 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:58:20, skipping insertion in model container
[2020-10-12 17:58:20,632 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:58:20" (3/3) ...
[2020-10-12 17:58:20,634 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c
[2020-10-12 17:58:20,645 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:58:20,654 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:58:20,669 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:58:20,696 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:58:20,697 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:58:20,697 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:58:20,697 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:58:20,697 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:58:20,698 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:58:20,698 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:58:20,698 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:58:20,721 INFO  L276                IsEmpty]: Start isEmpty. Operand 179 states.
[2020-10-12 17:58:20,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:58:20,732 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:20,733 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]
[2020-10-12 17:58:20,734 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:20,740 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:20,740 INFO  L82        PathProgramCache]: Analyzing trace with hash -374908160, now seen corresponding path program 1 times
[2020-10-12 17:58:20,749 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:20,750 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830724286]
[2020-10-12 17:58:20,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:21,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:21,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:21,312 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:22,119 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,235 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,236 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:58:23,237 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:58:23,237 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2188
[2020-10-12 17:58:23,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:58:23,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:23,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:58:23,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-10-12 17:58:23,686 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:58:23,689 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:58:23,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,821 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,821 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:23,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,822 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-10-12 17:58:23,822 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:58:23,825 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-12 17:58:23,857 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:58:23,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,859 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,861 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,861 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:23,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,862 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:23,862 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:23,863 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:58:23,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,866 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:23,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:23,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:23,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,871 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:58:23,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,873 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,875 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,876 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:23,876 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,876 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:23,876 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:23,877 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,879 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:58:23,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,882 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,883 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:23,883 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,883 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:23,883 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:23,884 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,886 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:58:23,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,888 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,890 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,890 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:23,891 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,891 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:23,891 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:23,892 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,892 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:23,892 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,897 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:58:23,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,904 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,904 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:23,905 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-12 17:58:23,905 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:58:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:23,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:23,906 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,919 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:58:23,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:23,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:23,922 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:23,922 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:23,922 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:23,923 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:23,923 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:23,923 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:23,923 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:23,923 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:23,924 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:23,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:58:23,935 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830724286]
[2020-10-12 17:58:23,937 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:58:23,938 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-12 17:58:23,939 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167292907]
[2020-10-12 17:58:23,943 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 17:58:23,944 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:58:23,958 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 17:58:23,959 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-12 17:58:23,961 INFO  L87              Difference]: Start difference. First operand 179 states. Second operand 8 states.
[2020-10-12 17:58:24,429 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:58:25,634 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-12 17:58:26,008 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:58:26,304 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:58:26,827 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:58:27,232 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:58:28,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:58:28,427 INFO  L93              Difference]: Finished difference Result 450 states and 611 transitions.
[2020-10-12 17:58:28,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-12 17:58:28,432 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-12 17:58:28,433 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:58:28,449 INFO  L225             Difference]: With dead ends: 450
[2020-10-12 17:58:28,449 INFO  L226             Difference]: Without dead ends: 276
[2020-10-12 17:58:28,455 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2020-10-12 17:58:28,476 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2020-10-12 17:58:28,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 232.
[2020-10-12 17:58:28,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 232 states.
[2020-10-12 17:58:28,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 276 transitions.
[2020-10-12 17:58:28,584 INFO  L78                 Accepts]: Start accepts. Automaton has 232 states and 276 transitions. Word has length 52
[2020-10-12 17:58:28,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:58:28,584 INFO  L479      AbstractCegarLoop]: Abstraction has 232 states and 276 transitions.
[2020-10-12 17:58:28,584 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 17:58:28,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 276 transitions.
[2020-10-12 17:58:28,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-12 17:58:28,589 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:28,590 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]
[2020-10-12 17:58:28,590 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 17:58:28,590 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:28,591 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:28,591 INFO  L82        PathProgramCache]: Analyzing trace with hash 1987114059, now seen corresponding path program 1 times
[2020-10-12 17:58:28,591 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:28,591 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830233989]
[2020-10-12 17:58:28,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:28,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:28,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,254 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,254 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-12 17:58:29,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 625
[2020-10-12 17:58:29,255 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 17:58:29,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:29,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-12 17:58:29,256 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,500 WARN  L193               SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:58:29,501 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:58:29,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,590 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,591 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 72
[2020-10-12 17:58:29,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:58:29,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:58:29,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,609 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,610 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,611 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:29,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:29,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:29,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,613 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:58:29,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,616 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,617 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:29,617 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,620 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:29,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:29,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,622 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:58:29,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,623 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:29,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:29,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,628 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:58:29,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,632 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,632 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:29,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,633 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:29,633 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:29,634 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,641 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 17:58:29,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,644 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,646 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,646 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,647 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,647 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:58:29,647 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:29,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:29,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:29,648 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-12 17:58:29,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,652 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,653 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,653 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,653 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,656 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:29,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:29,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:29,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:29,657 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:29,685 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-12 17:58:29,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,687 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,688 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,688 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:29,690 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:29,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:29,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:29,692 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:58:29,693 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-12 17:58:29,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:29,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:29,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:29,696 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:29,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:29,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:29,697 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:29,697 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:29,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:29,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:29,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-12 17:58:29,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:58:29,711 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830233989]
[2020-10-12 17:58:29,711 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:58:29,711 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 17:58:29,711 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958719054]
[2020-10-12 17:58:29,714 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 17:58:29,714 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:58:29,714 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 17:58:29,715 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 17:58:29,716 INFO  L87              Difference]: Start difference. First operand 232 states and 276 transitions. Second operand 5 states.
[2020-10-12 17:58:30,026 WARN  L193               SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:58:32,068 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:58:32,068 INFO  L93              Difference]: Finished difference Result 762 states and 988 transitions.
[2020-10-12 17:58:32,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-12 17:58:32,072 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-12 17:58:32,072 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:58:32,082 INFO  L225             Difference]: With dead ends: 762
[2020-10-12 17:58:32,082 INFO  L226             Difference]: Without dead ends: 554
[2020-10-12 17:58:32,086 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-12 17:58:32,088 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 554 states.
[2020-10-12 17:58:32,224 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 411.
[2020-10-12 17:58:32,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 411 states.
[2020-10-12 17:58:32,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 496 transitions.
[2020-10-12 17:58:32,228 INFO  L78                 Accepts]: Start accepts. Automaton has 411 states and 496 transitions. Word has length 62
[2020-10-12 17:58:32,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:58:32,229 INFO  L479      AbstractCegarLoop]: Abstraction has 411 states and 496 transitions.
[2020-10-12 17:58:32,229 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 17:58:32,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 411 states and 496 transitions.
[2020-10-12 17:58:32,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-12 17:58:32,236 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:32,236 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]
[2020-10-12 17:58:32,237 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 17:58:32,237 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:32,237 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:32,237 INFO  L82        PathProgramCache]: Analyzing trace with hash 1134068548, now seen corresponding path program 1 times
[2020-10-12 17:58:32,237 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:32,238 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154559701]
[2020-10-12 17:58:32,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:32,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 17:58:32,280 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 17:58:32,280 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 17:58:32,284 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 17:58:32,307 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:58:32 BoogieIcfgContainer
[2020-10-12 17:58:32,307 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 17:58:32,309 INFO  L168              Benchmark]: Toolchain (without parser) took 13595.75 ms. Allocated memory was 138.9 MB in the beginning and 422.6 MB in the end (delta: 283.6 MB). Free memory was 101.5 MB in the beginning and 90.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 294.8 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,310 INFO  L168              Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,311 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 716.35 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 171.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,312 INFO  L168              Benchmark]: Boogie Preprocessor took 85.07 ms. Allocated memory is still 202.4 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,313 INFO  L168              Benchmark]: RCFGBuilder took 1108.50 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 198.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,314 INFO  L168              Benchmark]: TraceAbstraction took 11681.29 ms. Allocated memory was 234.9 MB in the beginning and 422.6 MB in the end (delta: 187.7 MB). Free memory was 198.2 MB in the beginning and 90.3 MB in the end (delta: 107.8 MB). Peak memory consumption was 295.5 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:32,318 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 716.35 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 171.9 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 85.07 ms. Allocated memory is still 202.4 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1108.50 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 198.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 11681.29 ms. Allocated memory was 234.9 MB in the beginning and 422.6 MB in the end (delta: 187.7 MB). Free memory was 198.2 MB in the beginning and 90.3 MB in the end (delta: 107.8 MB). Peak memory consumption was 295.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L185]              int waterLevel  =    1;
[L186]              int methaneLevelCritical  =    0;
[L492]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L693]              int pumpRunning  =    0;
[L694]              int systemActive  =    1;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L305]              int retValue_acc ;
[L308]              retValue_acc = 1
[L309]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L887]              int splverifierCounter ;
[L888]              int tmp ;
[L889]              int tmp___0 ;
[L890]              int tmp___1 ;
[L891]              int tmp___2 ;
[L894]              splverifierCounter = 0
[L896]  COND TRUE   1
[L898]  COND TRUE   splverifierCounter < 4
[L904]              tmp = __VERIFIER_nondet_int()
[L906]  COND TRUE   \read(tmp)
[L908]  CALL        waterRise()
[L203]  COND TRUE   waterLevel < 2
[L204]              waterLevel = waterLevel + 1
[L908]  RET         waterRise()
[L914]              tmp___0 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___0))
[L924]              tmp___2 = __VERIFIER_nondet_int()
[L926]  COND FALSE  !(\read(tmp___2))
[L932]              tmp___1 = __VERIFIER_nondet_int()
[L934]  COND TRUE   \read(tmp___1)
[L936]  CALL        stopSystem()
[L866]  COND FALSE  !(\read(pumpRunning))
[L873]              systemActive = 0
[L936]  RET         stopSystem()
[L943]  CALL        timeShift()
[L700]  COND FALSE  !(\read(pumpRunning))
[L707]  COND FALSE  !(\read(systemActive))
[L715]  CALL        __utac_acc__Specification3_spec__1()
[L149]              int tmp ;
[L150]              int tmp___0 ;
[L151]              int tmp___1 ;
[L155]  CALL, EXPR  isMethaneLevelCritical()
[L224]              int retValue_acc ;
[L227]              retValue_acc = methaneLevelCritical
[L228]              return (retValue_acc);
[L155]  RET, EXPR   isMethaneLevelCritical()
[L155]              tmp = isMethaneLevelCritical()
[L157]  COND FALSE  !(\read(tmp))
[L161]  CALL, EXPR  getWaterLevel()
[L256]              int retValue_acc ;
[L259]              retValue_acc = waterLevel
[L260]              return (retValue_acc);
[L161]  RET, EXPR   getWaterLevel()
[L161]              tmp___0 = getWaterLevel()
[L163]  COND TRUE   tmp___0 == 2
[L165]  CALL, EXPR  isPumpRunning()
[L799]              int retValue_acc ;
[L802]              retValue_acc = pumpRunning
[L803]              return (retValue_acc);
[L165]  RET, EXPR   isPumpRunning()
[L165]              tmp___1 = isPumpRunning()
[L167]  COND FALSE  !(\read(tmp___1))
[L171]  CALL        __automaton_fail()
[L318]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 583 SDslu, 313 SDs, 0 SdLazy, 1305 SolverSat, 342 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred 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, 187 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 34651 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...