/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product08.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-15 01:42:22,267 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-15 01:42:22,269 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-15 01:42:22,310 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-15 01:42:22,310 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-15 01:42:22,322 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-15 01:42:22,323 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-15 01:42:22,327 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-15 01:42:22,329 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-15 01:42:22,333 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-15 01:42:22,334 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-15 01:42:22,336 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-15 01:42:22,337 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-15 01:42:22,340 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-15 01:42:22,344 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-15 01:42:22,346 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-15 01:42:22,347 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-15 01:42:22,349 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-15 01:42:22,351 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-15 01:42:22,357 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-15 01:42:22,358 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-15 01:42:22,359 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-15 01:42:22,360 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-15 01:42:22,361 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-15 01:42:22,365 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-15 01:42:22,366 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-15 01:42:22,366 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-15 01:42:22,369 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-15 01:42:22,369 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-15 01:42:22,370 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-15 01:42:22,370 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-15 01:42:22,371 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-15 01:42:22,372 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-15 01:42:22,372 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-15 01:42:22,373 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-15 01:42:22,374 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-10-15 01:42:22,374 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-15 01:42:22,375 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-15 01:42:22,375 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-15 01:42:22,377 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-15 01:42:22,378 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
[2020-10-15 01:42:22,420 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-15 01:42:22,420 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-15 01:42:22,422 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-15 01:42:22,422 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-15 01:42:22,423 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-15 01:42:22,423 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-15 01:42:22,423 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-15 01:42:22,423 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-15 01:42:22,423 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-15 01:42:22,424 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-15 01:42:22,425 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-15 01:42:22,425 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-15 01:42:22,425 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-15 01:42:22,426 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-15 01:42:22,426 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-15 01:42:22,426 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-15 01:42:22,426 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-15 01:42:22,426 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-15 01:42:22,427 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-15 01:42:22,427 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-15 01:42:22,427 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-15 01:42:22,427 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-15 01:42:22,427 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-15 01:42:22,428 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-15 01:42:22,428 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-15 01:42:22,428 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-15 01:42:22,428 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-15 01:42:22,428 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-15 01:42:22,429 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-15 01:42:22,429 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
[2020-10-15 01:42:22,752 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-15 01:42:22,766 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-15 01:42:22,769 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-15 01:42:22,771 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-15 01:42:22,771 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-15 01:42:22,772 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c
[2020-10-15 01:42:22,834 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/986d54eac/f0b4765aa588428a9075d470d3734a3d/FLAG2cf646558
[2020-10-15 01:42:23,322 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-15 01:42:23,323 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c
[2020-10-15 01:42:23,337 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/986d54eac/f0b4765aa588428a9075d470d3734a3d/FLAG2cf646558
[2020-10-15 01:42:23,677 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/986d54eac/f0b4765aa588428a9075d470d3734a3d
[2020-10-15 01:42:23,685 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-15 01:42:23,687 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-15 01:42:23,688 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:23,688 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-15 01:42:23,692 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-15 01:42:23,693 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:23" (1/1) ...
[2020-10-15 01:42:23,696 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e42023b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:23, skipping insertion in model container
[2020-10-15 01:42:23,697 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:23" (1/1) ...
[2020-10-15 01:42:23,704 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-15 01:42:23,761 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-15 01:42:24,243 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:24,255 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-15 01:42:24,390 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:42:24,436 INFO  L208         MainTranslator]: Completed translation
[2020-10-15 01:42:24,436 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24 WrapperNode
[2020-10-15 01:42:24,436 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-15 01:42:24,437 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-15 01:42:24,437 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-15 01:42:24,438 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-15 01:42:24,453 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,453 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,471 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,472 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,502 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,513 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,518 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (1/1) ...
[2020-10-15 01:42:24,524 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-15 01:42:24,530 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-15 01:42:24,530 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-15 01:42:24,530 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-15 01:42:24,531 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (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
[2020-10-15 01:42:24,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-15 01:42:24,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-15 01:42:24,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:24,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-15 01:42:24,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-15 01:42:24,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-15 01:42:24,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-15 01:42:24,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-15 01:42:24,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-15 01:42:24,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-15 01:42:24,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-15 01:42:24,613 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-15 01:42:24,613 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-15 01:42:24,613 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-15 01:42:24,613 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-15 01:42:24,614 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-15 01:42:24,615 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-15 01:42:24,616 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-15 01:42:24,617 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-15 01:42:24,618 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-15 01:42:24,619 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-15 01:42:24,620 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-15 01:42:25,690 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-15 01:42:25,690 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-15 01:42:25,695 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:25 BoogieIcfgContainer
[2020-10-15 01:42:25,695 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-15 01:42:25,697 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-15 01:42:25,697 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-15 01:42:25,700 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-15 01:42:25,700 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:23" (1/3) ...
[2020-10-15 01:42:25,701 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f86c4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:25, skipping insertion in model container
[2020-10-15 01:42:25,701 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:24" (2/3) ...
[2020-10-15 01:42:25,702 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f86c4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:25, skipping insertion in model container
[2020-10-15 01:42:25,702 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:25" (3/3) ...
[2020-10-15 01:42:25,704 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c
[2020-10-15 01:42:25,714 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-15 01:42:25,722 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-15 01:42:25,736 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-15 01:42:25,761 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-15 01:42:25,761 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-15 01:42:25,761 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-15 01:42:25,762 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-15 01:42:25,762 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-15 01:42:25,762 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-15 01:42:25,762 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-15 01:42:25,762 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-15 01:42:25,788 INFO  L276                IsEmpty]: Start isEmpty. Operand 158 states.
[2020-10-15 01:42:25,804 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-15 01:42:25,805 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:25,806 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]
[2020-10-15 01:42:25,806 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:25,813 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:25,814 INFO  L82        PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times
[2020-10-15 01:42:25,821 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:25,822 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275427919]
[2020-10-15 01:42:25,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:26,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:26,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:26,321 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:27,078 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:28,584 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:28,584 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-15 01:42:28,585 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-15 01:42:28,585 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2501
[2020-10-15 01:42:28,589 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:28,590 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:28,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-15 01:42:28,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:28,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-15 01:42:28,591 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-10-15 01:42:29,023 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:29,028 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:29,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,075 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,162 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,162 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:29,162 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,168 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-10-15 01:42:29,168 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,168 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:29,169 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,196 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:29,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,199 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,200 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,201 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:29,201 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,201 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:29,201 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,202 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:29,202 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,204 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:29,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,206 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,208 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,209 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:29,209 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,209 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:29,209 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,209 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:29,210 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:29,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,216 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,219 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,219 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:29,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-15 01:42:29,220 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,220 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:29,221 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,223 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:29,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,228 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,228 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:29,228 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,228 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:29,229 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,229 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:29,230 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,236 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-15 01:42:29,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,241 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:29,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,242 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-15 01:42:29,242 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,242 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:29,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:29,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,245 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-15 01:42:29,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,248 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,253 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:29,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-15 01:42:29,254 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,254 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-15 01:42:29,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:29,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:29,255 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,269 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-15 01:42:29,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:29,271 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:29,273 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:29,273 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:29,273 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:29,274 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:29,274 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:29,274 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:29,274 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:29,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:29,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:29,275 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:29,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:42:29,295 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275427919]
[2020-10-15 01:42:29,297 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:29,298 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-10-15 01:42:29,299 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800357845]
[2020-10-15 01:42:29,305 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-15 01:42:29,306 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:29,321 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-15 01:42:29,323 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:42:29,326 INFO  L87              Difference]: Start difference. First operand 158 states. Second operand 7 states.
[2020-10-15 01:42:30,014 WARN  L193               SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:31,234 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:31,612 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-15 01:42:31,870 WARN  L193               SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-15 01:42:32,120 WARN  L193               SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:32,487 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:42:33,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:33,539 INFO  L93              Difference]: Finished difference Result 379 states and 519 transitions.
[2020-10-15 01:42:33,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-15 01:42:33,540 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 52
[2020-10-15 01:42:33,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:33,555 INFO  L225             Difference]: With dead ends: 379
[2020-10-15 01:42:33,555 INFO  L226             Difference]: Without dead ends: 242
[2020-10-15 01:42:33,560 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2020-10-15 01:42:33,576 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2020-10-15 01:42:33,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 204.
[2020-10-15 01:42:33,673 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 204 states.
[2020-10-15 01:42:33,676 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 252 transitions.
[2020-10-15 01:42:33,678 INFO  L78                 Accepts]: Start accepts. Automaton has 204 states and 252 transitions. Word has length 52
[2020-10-15 01:42:33,679 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:33,679 INFO  L479      AbstractCegarLoop]: Abstraction has 204 states and 252 transitions.
[2020-10-15 01:42:33,679 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-15 01:42:33,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 204 states and 252 transitions.
[2020-10-15 01:42:33,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-15 01:42:33,685 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:33,685 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]
[2020-10-15 01:42:33,686 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-15 01:42:33,686 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:33,686 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:33,686 INFO  L82        PathProgramCache]: Analyzing trace with hash -1912916473, now seen corresponding path program 1 times
[2020-10-15 01:42:33,687 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:33,687 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949626257]
[2020-10-15 01:42:33,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:33,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:33,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,403 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,404 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-15 01:42:34,404 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,404 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 681
[2020-10-15 01:42:34,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,405 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-15 01:42:34,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:34,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-15 01:42:34,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,704 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:42:34,705 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:42:34,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,731 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,782 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,783 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-10-15 01:42:34,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,784 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:42:34,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,808 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:42:34,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,810 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,812 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,812 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:34,812 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,812 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:34,813 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,813 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:34,814 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:42:34,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,817 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:34,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:34,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,820 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:34,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,822 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:42:34,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,824 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,826 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,826 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,827 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,827 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:34,827 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,828 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,828 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:34,829 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:42:34,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,835 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,837 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,837 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:42:34,837 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,837 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:34,837 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,838 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:42:34,839 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,861 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-15 01:42:34,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,864 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,867 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,867 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,871 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-15 01:42:34,872 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,872 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:42:34,873 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:42:34,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:42:34,876 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-10-15 01:42:34,879 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-15 01:42:34,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,882 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,883 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,883 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,884 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:34,884 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,884 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,885 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:34,885 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:34,886 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:34,886 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,887 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-15 01:42:34,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,889 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,890 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,891 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,891 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,892 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:42:34,892 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,892 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,893 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:34,893 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:34,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:34,897 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-10-15 01:42:34,899 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-15 01:42:34,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:42:34,901 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:42:34,903 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:42:34,903 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:42:34,903 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:42:34,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:42:34,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:42:34,904 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:42:34,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:42:34,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:42:34,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:42:34,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:42:34,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:42:34,916 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949626257]
[2020-10-15 01:42:34,917 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:42:34,917 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-15 01:42:34,918 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967203427]
[2020-10-15 01:42:34,920 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-15 01:42:34,921 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:42:34,921 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-15 01:42:34,921 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-15 01:42:34,922 INFO  L87              Difference]: Start difference. First operand 204 states and 252 transitions. Second operand 5 states.
[2020-10-15 01:42:35,276 WARN  L193               SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:42:37,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:42:37,195 INFO  L93              Difference]: Finished difference Result 631 states and 839 transitions.
[2020-10-15 01:42:37,196 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-15 01:42:37,196 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-15 01:42:37,196 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:42:37,209 INFO  L225             Difference]: With dead ends: 631
[2020-10-15 01:42:37,212 INFO  L226             Difference]: Without dead ends: 451
[2020-10-15 01:42:37,220 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
[2020-10-15 01:42:37,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 451 states.
[2020-10-15 01:42:37,393 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 363.
[2020-10-15 01:42:37,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 363 states.
[2020-10-15 01:42:37,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions.
[2020-10-15 01:42:37,399 INFO  L78                 Accepts]: Start accepts. Automaton has 363 states and 457 transitions. Word has length 62
[2020-10-15 01:42:37,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:42:37,400 INFO  L479      AbstractCegarLoop]: Abstraction has 363 states and 457 transitions.
[2020-10-15 01:42:37,400 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-15 01:42:37,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions.
[2020-10-15 01:42:37,414 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2020-10-15 01:42:37,414 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:42:37,414 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]
[2020-10-15 01:42:37,414 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-15 01:42:37,415 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:42:37,415 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:42:37,415 INFO  L82        PathProgramCache]: Analyzing trace with hash -692392108, now seen corresponding path program 1 times
[2020-10-15 01:42:37,416 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:42:37,417 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549376934]
[2020-10-15 01:42:37,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:42:37,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-15 01:42:37,464 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-15 01:42:37,464 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-15 01:42:37,468 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-15 01:42:37,499 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:37 BoogieIcfgContainer
[2020-10-15 01:42:37,499 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-15 01:42:37,502 INFO  L168              Benchmark]: Toolchain (without parser) took 13814.88 ms. Allocated memory was 148.9 MB in the beginning and 440.4 MB in the end (delta: 291.5 MB). Free memory was 102.8 MB in the beginning and 307.8 MB in the end (delta: -205.0 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,503 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 121.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,504 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 749.40 ms. Allocated memory was 148.9 MB in the beginning and 207.6 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 174.0 MB in the end (delta: -71.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,505 INFO  L168              Benchmark]: Boogie Preprocessor took 87.42 ms. Allocated memory is still 207.6 MB. Free memory was 174.0 MB in the beginning and 170.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,507 INFO  L168              Benchmark]: RCFGBuilder took 1165.81 ms. Allocated memory was 207.6 MB in the beginning and 230.7 MB in the end (delta: 23.1 MB). Free memory was 170.4 MB in the beginning and 185.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,515 INFO  L168              Benchmark]: TraceAbstraction took 11802.81 ms. Allocated memory was 230.7 MB in the beginning and 440.4 MB in the end (delta: 209.7 MB). Free memory was 185.3 MB in the beginning and 307.8 MB in the end (delta: -122.5 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB.
[2020-10-15 01:42:37,526 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 148.9 MB. Free memory was 122.2 MB in the beginning and 121.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 749.40 ms. Allocated memory was 148.9 MB in the beginning and 207.6 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 174.0 MB in the end (delta: -71.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 87.42 ms. Allocated memory is still 207.6 MB. Free memory was 174.0 MB in the beginning and 170.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1165.81 ms. Allocated memory was 207.6 MB in the beginning and 230.7 MB in the end (delta: 23.1 MB). Free memory was 170.4 MB in the beginning and 185.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 11802.81 ms. Allocated memory was 230.7 MB in the beginning and 440.4 MB in the end (delta: 209.7 MB). Free memory was 185.3 MB in the beginning and 307.8 MB in the end (delta: -122.5 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L247]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L448]              int waterLevel  =    1;
[L449]              int methaneLevelCritical  =    0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L807]              int cleanupTimeShifts  =    4;
[L880]              int retValue_acc ;
[L881]              int tmp ;
[L885]  FCALL       select_helpers()
[L886]  FCALL       select_features()
[L887]  CALL, EXPR  valid_product()
[L798]              int retValue_acc ;
[L801]              retValue_acc = 1
[L802]              return (retValue_acc);
[L887]  RET, EXPR   valid_product()
[L887]              tmp = valid_product()
[L889]  COND TRUE   \read(tmp)
[L891]  FCALL       setup()
[L892]  CALL        runTest()
[L874]  CALL        test()
[L542]              int splverifierCounter ;
[L543]              int tmp ;
[L544]              int tmp___0 ;
[L545]              int tmp___1 ;
[L546]              int tmp___2 ;
[L549]              splverifierCounter = 0
[L551]  COND TRUE   1
[L553]  COND TRUE   splverifierCounter < 4
[L559]              tmp = __VERIFIER_nondet_int()
[L561]  COND TRUE   \read(tmp)
[L563]  CALL        waterRise()
[L466]  COND TRUE   waterLevel < 2
[L467]              waterLevel = waterLevel + 1
[L563]  RET         waterRise()
[L569]              tmp___0 = __VERIFIER_nondet_int()
[L571]  COND FALSE  !(\read(tmp___0))
[L579]              tmp___2 = __VERIFIER_nondet_int()
[L581]  COND FALSE  !(\read(tmp___2))
[L587]              tmp___1 = __VERIFIER_nondet_int()
[L589]  COND FALSE  !(\read(tmp___1))
[L598]  CALL        timeShift()
[L620]  COND FALSE  !(\read(pumpRunning))
[L627]  COND TRUE   \read(systemActive)
[L629]  CALL        processEnvironment()
[L649]              int tmp ;
[L652]  COND FALSE  !(\read(pumpRunning))
[L667]  FCALL       processEnvironment__wrappee__base()
[L629]  RET         processEnvironment()
[L635]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L487]              int retValue_acc ;
[L490]              retValue_acc = methaneLevelCritical
[L491]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L519]              int retValue_acc ;
[L522]              retValue_acc = waterLevel
[L523]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L701]              int retValue_acc ;
[L704]              retValue_acc = pumpRunning
[L705]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L532]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 464 SDslu, 268 SDs, 0 SdLazy, 1008 SolverSat, 289 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred 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, 126 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 33172 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...