/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:14:10,670 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:14:10,677 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:14:10,722 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:14:10,723 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:14:10,731 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:14:10,734 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:14:10,738 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:14:10,741 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:14:10,745 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:14:10,746 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:14:10,748 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:14:10,748 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:14:10,751 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:14:10,754 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:14:10,756 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:14:10,758 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:14:10,759 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:14:10,760 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:14:10,769 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:14:10,771 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:14:10,773 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:14:10,774 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:14:10,775 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:14:10,788 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:14:10,794 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:14:10,794 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:14:10,795 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:14:10,796 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:14:10,799 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:14:10,799 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:14:10,800 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:14:10,801 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:14:10,804 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:14:10,805 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:14:10,805 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:14:10,806 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:14:10,806 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:14:10,807 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:14:10,808 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:14:10,809 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:14:10,810 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 20:14:10,859 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:14:10,859 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:14:10,862 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:14:10,862 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:14:10,862 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:14:10,863 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:14:10,863 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:14:10,863 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:14:10,864 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:14:10,864 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:14:10,865 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:14:10,865 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:14:10,865 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:14:10,866 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:14:10,866 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:14:10,866 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:14:10,866 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:14:10,867 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:14:10,867 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:14:10,867 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:14:10,867 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:14:10,868 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:14:10,868 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:14:10,868 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:14:10,868 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:14:10,868 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:14:10,869 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:14:10,869 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:14:10,869 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:14:10,869 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
[2020-09-24 20:14:11,367 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:14:11,391 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:14:11,395 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:14:11,397 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:14:11,398 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:14:11,399 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c
[2020-09-24 20:14:11,481 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8c1c7909/2b745c3dc4544c19b0e7ecc5a9bfe5b4/FLAG7bd6291dc
[2020-09-24 20:14:12,146 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:14:12,147 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c
[2020-09-24 20:14:12,163 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8c1c7909/2b745c3dc4544c19b0e7ecc5a9bfe5b4/FLAG7bd6291dc
[2020-09-24 20:14:12,368 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8c1c7909/2b745c3dc4544c19b0e7ecc5a9bfe5b4
[2020-09-24 20:14:12,381 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:14:12,388 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:14:12,389 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:14:12,389 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:14:12,394 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:14:12,395 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:12" (1/1) ...
[2020-09-24 20:14:12,400 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:12, skipping insertion in model container
[2020-09-24 20:14:12,400 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:12" (1/1) ...
[2020-09-24 20:14:12,409 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:14:12,466 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:14:12,881 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:14:13,001 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:14:13,105 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:14:13,150 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:14:13,151 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13 WrapperNode
[2020-09-24 20:14:13,151 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:14:13,152 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:14:13,152 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:14:13,152 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:14:13,170 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,170 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,195 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,196 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,226 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,238 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,243 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
[2020-09-24 20:14:13,257 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:14:13,258 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:14:13,258 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:14:13,258 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:14:13,259 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:14:13,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:14:13,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:14:13,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:14:13,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:14:13,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:14:13,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:14:13,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:14:13,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:14:13,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:14:13,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:14:13,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 20:14:13,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:14:13,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 20:14:13,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:14:13,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:14:13,340 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:14:13,340 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:14:13,340 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:14:13,340 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:14:13,340 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:14:13,341 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:14:13,341 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:14:13,341 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:14:13,341 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:14:13,341 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:14:13,342 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:14:13,343 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:14:13,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:14:13,345 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:14:13,346 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 20:14:13,347 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 20:14:13,348 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:14:13,349 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:14:13,349 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:14:13,349 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:14:14,520 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:14:14,521 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:14:14,529 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:14 BoogieIcfgContainer
[2020-09-24 20:14:14,529 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:14:14,530 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:14:14,530 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:14:14,534 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:14:14,535 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:14:12" (1/3) ...
[2020-09-24 20:14:14,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512d4e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:14, skipping insertion in model container
[2020-09-24 20:14:14,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:13" (2/3) ...
[2020-09-24 20:14:14,536 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512d4e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:14, skipping insertion in model container
[2020-09-24 20:14:14,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:14" (3/3) ...
[2020-09-24 20:14:14,539 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c
[2020-09-24 20:14:14,550 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:14:14,562 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:14:14,585 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:14:14,616 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:14:14,616 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:14:14,616 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:14:14,616 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:14:14,617 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:14:14,617 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:14:14,617 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:14:14,617 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:14:14,648 INFO  L276                IsEmpty]: Start isEmpty. Operand 353 states.
[2020-09-24 20:14:14,668 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:14:14,669 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:14,670 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:14:14,671 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:14,679 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:14,679 INFO  L82        PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times
[2020-09-24 20:14:14,691 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:14,691 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505545022]
[2020-09-24 20:14:14,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:15,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:15,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:15,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:17,006 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:20,115 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:20,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:14:20,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:14:20,117 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5068
[2020-09-24 20:14:20,121 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:20,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:14:20,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 20:14:20,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-24 20:14:20,133 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 15
[2020-09-24 20:14:20,917 WARN  L193               SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:14:20,924 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:14:20,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,054 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,325 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:14:21,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 329
[2020-09-24 20:14:21,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 20:14:21,329 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,457 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:14:21,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,463 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,469 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,469 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:21,469 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,470 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:14:21,470 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:21,472 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:14:21,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,494 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,495 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:21,495 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,495 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:14:21,496 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,496 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,496 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:21,497 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:14:21,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,513 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,528 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,528 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:21,529 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,529 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 20:14:21,530 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:21,531 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,534 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:14:21,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,545 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,545 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:21,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,546 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:14:21,547 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:21,548 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:14:21,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,558 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,563 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,564 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:21,564 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,564 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:14:21,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:21,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:21,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,569 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:14:21,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,589 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:21,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-24 20:14:21,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:14:21,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:21,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:21,594 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 20:14:21,640 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:14:21,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:21,646 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:21,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:21,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:21,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:21,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:14:21,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:21,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:21,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:21,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:21,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:21,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:14:21,711 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505545022]
[2020-09-24 20:14:21,713 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:14:21,714 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:14:21,715 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934690934]
[2020-09-24 20:14:21,725 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:14:21,725 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:14:21,745 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:14:21,746 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:14:21,749 INFO  L87              Difference]: Start difference. First operand 353 states. Second operand 8 states.
[2020-09-24 20:14:22,446 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:24,097 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:24,512 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:14:24,933 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:25,374 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:14:25,758 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:26,720 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:27,072 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:28,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:14:28,856 INFO  L93              Difference]: Finished difference Result 782 states and 982 transitions.
[2020-09-24 20:14:28,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:14:28,864 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:14:28,865 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:14:28,887 INFO  L225             Difference]: With dead ends: 782
[2020-09-24 20:14:28,887 INFO  L226             Difference]: Without dead ends: 523
[2020-09-24 20:14:28,896 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:14:28,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 523 states.
[2020-09-24 20:14:29,101 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 468.
[2020-09-24 20:14:29,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 468 states.
[2020-09-24 20:14:29,107 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 532 transitions.
[2020-09-24 20:14:29,109 INFO  L78                 Accepts]: Start accepts. Automaton has 468 states and 532 transitions. Word has length 153
[2020-09-24 20:14:29,110 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:14:29,110 INFO  L479      AbstractCegarLoop]: Abstraction has 468 states and 532 transitions.
[2020-09-24 20:14:29,110 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:14:29,111 INFO  L276                IsEmpty]: Start isEmpty. Operand 468 states and 532 transitions.
[2020-09-24 20:14:29,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 20:14:29,118 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:29,118 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:14:29,119 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:14:29,119 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:29,119 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:29,119 INFO  L82        PathProgramCache]: Analyzing trace with hash -74683612, now seen corresponding path program 1 times
[2020-09-24 20:14:29,120 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:29,120 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552310396]
[2020-09-24 20:14:29,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:29,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:29,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:29,553 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:29,554 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 20:14:29,554 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:29,554 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 375
[2020-09-24 20:14:29,555 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:29,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:29,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 20:14:29,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 20:14:29,555 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:29,816 WARN  L193               SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:14:29,817 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:14:29,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:29,834 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:29,934 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:29,934 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:14:29,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:29,935 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 108
[2020-09-24 20:14:29,935 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:29,935 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:29,935 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:29,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:29,936 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:29,970 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:14:29,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:29,973 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:29,980 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:29,981 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:29,981 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:29,981 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:14:29,982 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:29,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:29,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:29,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:29,983 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:29,984 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:14:29,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:29,986 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:29,987 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:29,988 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:29,988 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:29,988 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:29,988 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:29,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:29,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:29,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:29,989 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:29,991 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:14:29,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:29,993 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:29,998 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:29,998 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:29,999 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:29,999 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:14:30,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:30,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,001 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:30,002 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:14:30,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,005 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,005 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:30,005 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,006 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:30,006 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:30,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,007 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:30,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:14:30,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,022 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,022 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:14:30,022 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:30,023 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:30,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,024 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:30,034 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 20:14:30,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,036 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,039 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,039 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 20:14:30,040 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,040 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:14:30,040 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,040 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:30,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:30,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 20:14:30,043 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 20:14:30,045 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 20:14:30,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,049 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,049 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:30,049 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:14:30,050 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:30,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,051 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:30,052 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 20:14:30,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,056 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,057 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,057 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:30,058 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,058 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:30,058 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,058 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,058 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:30,059 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,059 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:30,060 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 20:14:30,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:30,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:30,064 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:30,064 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:30,064 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:30,064 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:30,064 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:30,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:30,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:30,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:30,065 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:30,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:14:30,099 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552310396]
[2020-09-24 20:14:30,099 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:14:30,099 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 20:14:30,100 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882825897]
[2020-09-24 20:14:30,103 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 20:14:30,103 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:14:30,103 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 20:14:30,103 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 20:14:30,103 INFO  L87              Difference]: Start difference. First operand 468 states and 532 transitions. Second operand 6 states.
[2020-09-24 20:14:30,635 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:34,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:14:34,015 INFO  L93              Difference]: Finished difference Result 1399 states and 1745 transitions.
[2020-09-24 20:14:34,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 20:14:34,017 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 20:14:34,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:14:34,026 INFO  L225             Difference]: With dead ends: 1399
[2020-09-24 20:14:34,026 INFO  L226             Difference]: Without dead ends: 1041
[2020-09-24 20:14:34,032 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 20:14:34,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1041 states.
[2020-09-24 20:14:34,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 809.
[2020-09-24 20:14:34,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 809 states.
[2020-09-24 20:14:34,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 938 transitions.
[2020-09-24 20:14:34,183 INFO  L78                 Accepts]: Start accepts. Automaton has 809 states and 938 transitions. Word has length 172
[2020-09-24 20:14:34,184 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:14:34,184 INFO  L479      AbstractCegarLoop]: Abstraction has 809 states and 938 transitions.
[2020-09-24 20:14:34,184 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 20:14:34,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 809 states and 938 transitions.
[2020-09-24 20:14:34,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 20:14:34,191 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:34,191 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:14:34,191 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:14:34,191 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:34,192 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:34,192 INFO  L82        PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times
[2020-09-24 20:14:34,192 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:34,192 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236161937]
[2020-09-24 20:14:34,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:34,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:14:34,265 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:14:34,265 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:14:34,271 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:14:34,299 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:14:34 BoogieIcfgContainer
[2020-09-24 20:14:34,299 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:14:34,302 INFO  L168              Benchmark]: Toolchain (without parser) took 21918.46 ms. Allocated memory was 138.4 MB in the beginning and 492.3 MB in the end (delta: 353.9 MB). Free memory was 100.7 MB in the beginning and 90.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 364.2 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,302 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,303 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 762.83 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 170.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,304 INFO  L168              Benchmark]: Boogie Preprocessor took 105.00 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 164.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,305 INFO  L168              Benchmark]: RCFGBuilder took 1271.50 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.7 MB in the beginning and 171.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,306 INFO  L168              Benchmark]: TraceAbstraction took 19769.30 ms. Allocated memory was 233.8 MB in the beginning and 492.3 MB in the end (delta: 258.5 MB). Free memory was 169.5 MB in the beginning and 90.4 MB in the end (delta: 79.1 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:34,310 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 762.83 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 170.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 105.00 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 164.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1271.50 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 164.7 MB in the beginning and 171.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19769.30 ms. Allocated memory was 233.8 MB in the beginning and 492.3 MB in the end (delta: 258.5 MB). Free memory was 169.5 MB in the beginning and 90.4 MB in the end (delta: 79.1 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]                int cleanupTimeShifts  =    4;
[L313]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L587]               int waterLevel  =    1;
[L588]               int methaneLevelCritical  =    0;
[L694]               int pumpRunning  =    0;
[L695]               int systemActive  =    1;
[L121]               int retValue_acc ;
[L122]               int tmp ;
[L126]   FCALL       select_helpers()
[L127]   FCALL       select_features()
[L128]   CALL, EXPR  valid_product()
[L536]               int retValue_acc ;
[L539]               retValue_acc = 1
[L540]               return (retValue_acc);
[L128]   RET, EXPR   valid_product()
[L128]               tmp = valid_product()
[L130]   COND TRUE   \read(tmp)
[L132]   FCALL       setup()
[L133]   CALL        runTest()
[L112]   CALL        test()
[L941]               int splverifierCounter ;
[L942]               int tmp ;
[L943]               int tmp___0 ;
[L944]               int tmp___1 ;
[L945]               int tmp___2 ;
[L948]               splverifierCounter = 0
[L950]   COND TRUE   1
[L952]   COND TRUE   splverifierCounter < 4
[L958]               tmp = __VERIFIER_nondet_int()
[L960]   COND TRUE   \read(tmp)
[L962]   CALL        waterRise()
[L605]   COND TRUE   waterLevel < 2
[L606]               waterLevel = waterLevel + 1
[L962]   RET         waterRise()
[L968]               tmp___0 = __VERIFIER_nondet_int()
[L970]   COND FALSE  !(\read(tmp___0))
[L978]               tmp___2 = __VERIFIER_nondet_int()
[L980]   COND FALSE  !(\read(tmp___2))
[L986]               tmp___1 = __VERIFIER_nondet_int()
[L988]   COND TRUE   \read(tmp___1)
[L990]   CALL        stopSystem()
[L920]   COND FALSE  !(\read(pumpRunning))
[L927]               systemActive = 0
[L990]   RET         stopSystem()
[L997]   CALL        timeShift()
[L701]   COND FALSE  !(\read(pumpRunning))
[L708]   COND FALSE  !(\read(systemActive))
[L716]   CALL        __utac_acc__Specification3_spec__1()
[L550]               int tmp ;
[L551]               int tmp___0 ;
[L552]               int tmp___1 ;
[L556]   CALL, EXPR  isMethaneLevelCritical()
[L626]               int retValue_acc ;
[L629]               retValue_acc = methaneLevelCritical
[L630]               return (retValue_acc);
[L556]   RET, EXPR   isMethaneLevelCritical()
[L556]               tmp = isMethaneLevelCritical()
[L558]   COND FALSE  !(\read(tmp))
[L562]   CALL, EXPR  getWaterLevel()
[L658]               int retValue_acc ;
[L661]               retValue_acc = waterLevel
[L662]               return (retValue_acc);
[L562]   RET, EXPR   getWaterLevel()
[L562]               tmp___0 = getWaterLevel()
[L564]   COND TRUE   tmp___0 == 2
[L566]   CALL, EXPR  isPumpRunning()
[L834]               int retValue_acc ;
[L837]               retValue_acc = pumpRunning
[L838]               return (retValue_acc);
[L566]   RET, EXPR   isPumpRunning()
[L566]               tmp___1 = isPumpRunning()
[L568]   COND FALSE  !(\read(tmp___1))
[L572]   CALL        __automaton_fail()
[L1013]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 43 procedures, 665 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 645 SDtfs, 1312 SDslu, 832 SDs, 0 SdLazy, 2319 SolverSat, 508 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=809occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 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...