/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_product48.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:58:29,432 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:58:29,435 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:58:29,478 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:58:29,479 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:58:29,488 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:58:29,490 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:58:29,493 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:58:29,496 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:58:29,501 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:58:29,502 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:58:29,503 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:58:29,503 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:58:29,506 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:58:29,509 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:58:29,510 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:58:29,512 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:58:29,513 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:58:29,514 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:58:29,523 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:58:29,526 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:58:29,526 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:58:29,527 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:58:29,528 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:58:29,540 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:58:29,541 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:58:29,541 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:58:29,549 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:58:29,550 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:58:29,551 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:58:29,551 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:58:29,552 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:58:29,555 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:58:29,555 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:58:29,558 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:58:29,558 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:58:29,558 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:58:29,559 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:58:29,559 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:58:29,560 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:58:29,561 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:58:29,562 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 17:58:29,599 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:58:29,600 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:58:29,602 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:58:29,603 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:58:29,603 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:58:29,603 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:58:29,603 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:58:29,604 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:58:29,604 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:58:29,604 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:58:29,605 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:58:29,605 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:58:29,605 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:58:29,606 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:58:29,606 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:58:29,606 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:58:29,606 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:58:29,607 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:58:29,607 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:58:29,607 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:58:29,607 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:58:29,607 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:58:29,607 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:58:29,608 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:58:29,608 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:58:29,608 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:58:29,609 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:58:29,609 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:58:29,609 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:58:29,609 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 17:58:29,963 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:58:29,985 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:58:29,990 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:58:29,992 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:58:29,993 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:58:29,994 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c
[2020-10-12 17:58:30,063 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43772c4a7/bae5d485fe6a457d9167e581366948c1/FLAGe6eae80b4
[2020-10-12 17:58:30,509 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:58:30,509 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c
[2020-10-12 17:58:30,523 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43772c4a7/bae5d485fe6a457d9167e581366948c1/FLAGe6eae80b4
[2020-10-12 17:58:30,880 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43772c4a7/bae5d485fe6a457d9167e581366948c1
[2020-10-12 17:58:30,891 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:58:30,893 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:58:30,894 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:58:30,894 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:58:30,898 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:58:30,899 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:58:30" (1/1) ...
[2020-10-12 17:58:30,902 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bcf94a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:30, skipping insertion in model container
[2020-10-12 17:58:30,902 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:58:30" (1/1) ...
[2020-10-12 17:58:30,910 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:58:30,955 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:58:31,486 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:58:31,498 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:58:31,571 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:58:31,621 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:58:31,623 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31 WrapperNode
[2020-10-12 17:58:31,623 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:58:31,624 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:58:31,624 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:58:31,624 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:58:31,637 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,638 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,657 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,657 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,691 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,703 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,708 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (1/1) ...
[2020-10-12 17:58:31,716 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:58:31,717 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:58:31,717 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:58:31,717 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:58:31,718 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (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 17:58:31,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:58:31,787 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:58:31,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:58:31,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:58:31,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:58:31,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:58:31,788 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:58:31,789 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:58:31,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:58:31,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:58:31,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-12 17:58:31,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:58:31,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-12 17:58:31,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:58:31,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:58:31,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-10-12 17:58:31,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:58:31,791 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:58:31,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:58:31,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:58:31,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:58:31,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-12 17:58:31,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-12 17:58:31,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-12 17:58:31,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:58:31,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:58:31,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:58:31,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:58:31,794 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:58:31,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:58:31,795 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:58:31,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:58:31,795 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:58:31,795 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:58:31,796 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:58:31,797 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:58:31,798 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-10-12 17:58:31,799 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:58:31,800 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:58:31,801 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:58:31,802 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:58:31,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:58:32,797 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:58:32,798 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:58:32,803 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:58:32 BoogieIcfgContainer
[2020-10-12 17:58:32,803 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:58:32,804 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:58:32,804 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:58:32,807 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:58:32,808 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:58:30" (1/3) ...
[2020-10-12 17:58:32,809 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeb489e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:58:32, skipping insertion in model container
[2020-10-12 17:58:32,809 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:58:31" (2/3) ...
[2020-10-12 17:58:32,809 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeb489e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:58:32, skipping insertion in model container
[2020-10-12 17:58:32,809 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:58:32" (3/3) ...
[2020-10-12 17:58:32,811 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c
[2020-10-12 17:58:32,821 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:58:32,829 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:58:32,840 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:58:32,863 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:58:32,863 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:58:32,863 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:58:32,863 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:58:32,863 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:58:32,863 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:58:32,863 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:58:32,864 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:58:32,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states.
[2020-10-12 17:58:32,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:58:32,899 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:32,900 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 17:58:32,901 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:32,907 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:32,908 INFO  L82        PathProgramCache]: Analyzing trace with hash -1986683117, now seen corresponding path program 1 times
[2020-10-12 17:58:32,918 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:32,918 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803307139]
[2020-10-12 17:58:32,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:33,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:33,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:33,491 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:34,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:35,605 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:35,605 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:58:35,606 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:58:35,606 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2371
[2020-10-12 17:58:35,608 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:35,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:58:35,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:35,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:58:35,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-12 17:58:36,112 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:58:36,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:58:36,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,261 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,261 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:36,262 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,262 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-10-12 17:58:36,262 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:58:36,264 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:58:36,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:58:36,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,318 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,321 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,321 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:36,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,322 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:58:36,322 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,323 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:36,323 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:58:36,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,329 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:36,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:58:36,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:36,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:58:36,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,341 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,341 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:36,342 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,342 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-12 17:58:36,342 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,342 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:36,343 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,345 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:58:36,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,348 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,349 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:36,350 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,350 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:36,350 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:36,351 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,355 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:58:36,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,365 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:36,366 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,366 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-12 17:58:36,366 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:36,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:36,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,369 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:58:36,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,378 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,378 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:36,379 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,379 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 17:58:36,379 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:58:36,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:36,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:36,380 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:36,431 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:58:36,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:36,433 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:36,435 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:36,435 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:36,435 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:36,436 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:36,436 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:36,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:36,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:36,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:36,437 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:58:36,459 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 17:58:36,460 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803307139]
[2020-10-12 17:58:36,462 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:58:36,463 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-12 17:58:36,463 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067406903]
[2020-10-12 17:58:36,470 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 17:58:36,470 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:58:36,486 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 17:58:36,487 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-12 17:58:36,490 INFO  L87              Difference]: Start difference. First operand 189 states. Second operand 8 states.
[2020-10-12 17:58:37,134 WARN  L193               SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:58:38,830 WARN  L193               SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-10-12 17:58:39,188 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:58:39,489 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:58:40,011 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-10-12 17:58:40,477 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:58:42,065 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:58:42,066 INFO  L93              Difference]: Finished difference Result 484 states and 668 transitions.
[2020-10-12 17:58:42,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-12 17:58:42,069 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-12 17:58:42,070 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:58:42,099 INFO  L225             Difference]: With dead ends: 484
[2020-10-12 17:58:42,100 INFO  L226             Difference]: Without dead ends: 300
[2020-10-12 17:58:42,106 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2020-10-12 17:58:42,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2020-10-12 17:58:42,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 252.
[2020-10-12 17:58:42,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 252 states.
[2020-10-12 17:58:42,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 308 transitions.
[2020-10-12 17:58:42,234 INFO  L78                 Accepts]: Start accepts. Automaton has 252 states and 308 transitions. Word has length 52
[2020-10-12 17:58:42,235 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:58:42,235 INFO  L479      AbstractCegarLoop]: Abstraction has 252 states and 308 transitions.
[2020-10-12 17:58:42,235 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 17:58:42,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 252 states and 308 transitions.
[2020-10-12 17:58:42,240 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-12 17:58:42,241 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:42,241 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 17:58:42,241 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 17:58:42,242 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:42,242 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:42,242 INFO  L82        PathProgramCache]: Analyzing trace with hash 1032032877, now seen corresponding path program 1 times
[2020-10-12 17:58:42,242 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:42,243 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719297232]
[2020-10-12 17:58:42,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:42,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:42,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:42,911 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:42,911 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-12 17:58:42,912 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:42,912 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 635
[2020-10-12 17:58:42,912 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:42,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 17:58:42,913 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:42,913 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-12 17:58:42,913 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,186 WARN  L193               SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:58:43,187 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:58:43,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,210 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,260 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,260 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,261 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,261 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-10-12 17:58:43,261 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:58:43,262 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,277 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:58:43,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:43,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:43,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,283 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:58:43,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:43,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,287 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:43,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:58:43,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,293 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,294 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,294 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,294 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:43,294 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:43,295 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:58:43,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:58:43,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,302 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:58:43,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 17:58:43,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,321 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,321 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,321 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:58:43,321 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:58:43,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:58:43,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:58:43,322 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,324 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-12 17:58:43,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,327 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:43,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:43,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:43,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-12 17:58:43,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,331 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,331 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,332 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,332 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,332 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:43,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:43,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:43,333 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,334 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-12 17:58:43,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:58:43,336 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:58:43,337 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:58:43,337 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:58:43,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:58:43,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:58:43,337 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:58:43,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:58:43,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:58:43,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:58:43,338 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:58:43,347 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 17:58:43,347 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719297232]
[2020-10-12 17:58:43,348 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:58:43,348 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 17:58:43,348 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075086795]
[2020-10-12 17:58:43,350 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 17:58:43,350 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:58:43,350 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 17:58:43,351 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 17:58:43,351 INFO  L87              Difference]: Start difference. First operand 252 states and 308 transitions. Second operand 5 states.
[2020-10-12 17:58:43,753 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:58:45,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:58:45,951 INFO  L93              Difference]: Finished difference Result 830 states and 1100 transitions.
[2020-10-12 17:58:45,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-12 17:58:45,952 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-12 17:58:45,953 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:58:45,960 INFO  L225             Difference]: With dead ends: 830
[2020-10-12 17:58:45,961 INFO  L226             Difference]: Without dead ends: 602
[2020-10-12 17:58:45,963 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 17:58:45,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 602 states.
[2020-10-12 17:58:46,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 463.
[2020-10-12 17:58:46,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 463 states.
[2020-10-12 17:58:46,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 576 transitions.
[2020-10-12 17:58:46,088 INFO  L78                 Accepts]: Start accepts. Automaton has 463 states and 576 transitions. Word has length 62
[2020-10-12 17:58:46,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:58:46,088 INFO  L479      AbstractCegarLoop]: Abstraction has 463 states and 576 transitions.
[2020-10-12 17:58:46,088 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 17:58:46,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 463 states and 576 transitions.
[2020-10-12 17:58:46,095 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-12 17:58:46,095 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:58:46,095 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 17:58:46,096 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 17:58:46,096 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:58:46,096 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:58:46,096 INFO  L82        PathProgramCache]: Analyzing trace with hash 1282483756, now seen corresponding path program 1 times
[2020-10-12 17:58:46,096 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:58:46,097 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824024510]
[2020-10-12 17:58:46,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:58:46,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 17:58:46,134 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 17:58:46,134 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 17:58:46,138 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 17:58:46,160 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:58:46 BoogieIcfgContainer
[2020-10-12 17:58:46,160 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 17:58:46,162 INFO  L168              Benchmark]: Toolchain (without parser) took 15269.60 ms. Allocated memory was 141.6 MB in the beginning and 448.3 MB in the end (delta: 306.7 MB). Free memory was 103.6 MB in the beginning and 286.7 MB in the end (delta: -183.2 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,163 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,164 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 729.70 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.3 MB in the beginning and 171.8 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,164 INFO  L168              Benchmark]: Boogie Preprocessor took 92.40 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 167.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,165 INFO  L168              Benchmark]: RCFGBuilder took 1086.80 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 167.9 MB in the beginning and 189.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,166 INFO  L168              Benchmark]: TraceAbstraction took 13355.66 ms. Allocated memory was 233.8 MB in the beginning and 448.3 MB in the end (delta: 214.4 MB). Free memory was 188.3 MB in the beginning and 286.7 MB in the end (delta: -98.4 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB.
[2020-10-12 17:58:46,170 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 729.70 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.3 MB in the beginning and 171.8 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 92.40 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 167.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1086.80 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 167.9 MB in the beginning and 189.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 13355.66 ms. Allocated memory was 233.8 MB in the beginning and 448.3 MB in the end (delta: 214.4 MB). Free memory was 188.3 MB in the beginning and 286.7 MB in the end (delta: -98.4 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L129]              int waterLevel  =    1;
[L130]              int methaneLevelCritical  =    0;
[L229]              int pumpRunning  =    0;
[L230]              int systemActive  =    1;
[L447]              int cleanupTimeShifts  =    4;
[L782]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L521]              int retValue_acc ;
[L522]              int tmp ;
[L526]  FCALL       select_helpers()
[L527]  FCALL       select_features()
[L528]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L528]  RET, EXPR   valid_product()
[L528]              tmp = valid_product()
[L530]  COND TRUE   \read(tmp)
[L532]  FCALL       setup()
[L533]  CALL        runTest()
[L515]  CALL        test()
[L545]              int splverifierCounter ;
[L546]              int tmp ;
[L547]              int tmp___0 ;
[L548]              int tmp___1 ;
[L549]              int tmp___2 ;
[L552]              splverifierCounter = 0
[L554]  COND TRUE   1
[L556]  COND TRUE   splverifierCounter < 4
[L562]              tmp = __VERIFIER_nondet_int()
[L564]  COND TRUE   \read(tmp)
[L566]  CALL        waterRise()
[L147]  COND TRUE   waterLevel < 2
[L148]              waterLevel = waterLevel + 1
[L566]  RET         waterRise()
[L572]              tmp___0 = __VERIFIER_nondet_int()
[L574]  COND FALSE  !(\read(tmp___0))
[L582]              tmp___2 = __VERIFIER_nondet_int()
[L584]  COND FALSE  !(\read(tmp___2))
[L590]              tmp___1 = __VERIFIER_nondet_int()
[L592]  COND TRUE   \read(tmp___1)
[L594]  CALL        stopSystem()
[L427]  COND FALSE  !(\read(pumpRunning))
[L434]              systemActive = 0
[L594]  RET         stopSystem()
[L601]  CALL        timeShift()
[L236]  COND FALSE  !(\read(pumpRunning))
[L243]  COND FALSE  !(\read(systemActive))
[L251]  CALL        __utac_acc__Specification3_spec__1()
[L91]               int tmp ;
[L92]               int tmp___0 ;
[L93]               int tmp___1 ;
[L97]   CALL, EXPR  isMethaneLevelCritical()
[L168]              int retValue_acc ;
[L171]              retValue_acc = methaneLevelCritical
[L172]              return (retValue_acc);
[L97]   RET, EXPR   isMethaneLevelCritical()
[L97]               tmp = isMethaneLevelCritical()
[L99]   COND FALSE  !(\read(tmp))
[L103]  CALL, EXPR  getWaterLevel()
[L200]              int retValue_acc ;
[L203]              retValue_acc = waterLevel
[L204]              return (retValue_acc);
[L103]  RET, EXPR   getWaterLevel()
[L103]              tmp___0 = getWaterLevel()
[L105]  COND TRUE   tmp___0 == 2
[L107]  CALL, EXPR  isPumpRunning()
[L360]              int retValue_acc ;
[L363]              retValue_acc = pumpRunning
[L364]              return (retValue_acc);
[L107]  RET, EXPR   isPumpRunning()
[L107]              tmp___1 = isPumpRunning()
[L109]  COND FALSE  !(\read(tmp___1))
[L113]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 341 SDtfs, 738 SDslu, 290 SDs, 0 SdLazy, 1337 SolverSat, 488 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred 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, 4.2s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 35875 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...