/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product25.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:49:12,641 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:49:12,645 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:49:12,673 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:49:12,673 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:49:12,675 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:49:12,676 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:49:12,678 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:49:12,681 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:49:12,682 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:49:12,683 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:49:12,685 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:49:12,685 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:49:12,686 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:49:12,688 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:49:12,689 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:49:12,690 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:49:12,691 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:49:12,693 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:49:12,696 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:49:12,697 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:49:12,699 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:49:12,700 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:49:12,701 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:49:12,704 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:49:12,704 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:49:12,704 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:49:12,705 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:49:12,706 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:49:12,707 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:49:12,707 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:49:12,708 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:49:12,709 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:49:12,710 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:49:12,711 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:49:12,712 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:49:12,713 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:49:12,713 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:49:12,713 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:49:12,714 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:49:12,715 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:49:12,716 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
[2020-09-25 09:49:12,769 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:49:12,769 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:49:12,773 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:49:12,773 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:49:12,773 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:49:12,773 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:49:12,774 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:49:12,774 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:49:12,774 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:49:12,774 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:49:12,774 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:49:12,775 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:49:12,777 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:49:12,777 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:49:12,778 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:49:12,778 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:49:12,778 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:49:12,778 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:49:12,779 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:49:12,779 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:49:12,779 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:49:12,779 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:12,779 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:49:12,780 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:49:12,781 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:49:12,781 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:49:12,782 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:49:12,782 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:49:12,782 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:49:12,782 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 09:49:13,288 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:49:13,308 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:49:13,313 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:49:13,315 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:49:13,316 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:49:13,317 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-09-25 09:49:13,412 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/527948e11/50b82e099122443cb234e0321de64fb6/FLAG7a47435ea
[2020-09-25 09:49:14,042 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:49:14,043 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-09-25 09:49:14,058 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/527948e11/50b82e099122443cb234e0321de64fb6/FLAG7a47435ea
[2020-09-25 09:49:14,306 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/527948e11/50b82e099122443cb234e0321de64fb6
[2020-09-25 09:49:14,323 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:49:14,328 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:49:14,330 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:14,330 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:49:14,334 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:49:14,336 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:14" (1/1) ...
[2020-09-25 09:49:14,340 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:14, skipping insertion in model container
[2020-09-25 09:49:14,341 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:14" (1/1) ...
[2020-09-25 09:49:14,350 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:49:14,422 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:49:14,848 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:14,862 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:49:15,034 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:15,080 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:49:15,081 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15 WrapperNode
[2020-09-25 09:49:15,081 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:15,082 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:15,082 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:15,082 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:15,101 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,101 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,123 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,124 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,156 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,168 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,173 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (1/1) ...
[2020-09-25 09:49:15,181 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:15,181 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:15,181 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:15,182 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:15,183 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (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
[2020-09-25 09:49:15,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:15,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:15,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:15,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:15,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:15,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:15,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:15,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:15,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:15,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:15,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:15,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:15,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:15,258 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:15,258 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:15,258 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:15,258 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:15,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:15,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:15,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:15,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:15,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:15,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:15,261 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:15,262 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:15,263 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:15,264 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:15,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:15,266 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:15,267 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:15,268 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:15,269 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:15,270 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:15,270 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:16,480 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:16,480 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:16,487 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:16 BoogieIcfgContainer
[2020-09-25 09:49:16,488 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:16,489 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:16,489 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:16,493 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:16,494 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:14" (1/3) ...
[2020-09-25 09:49:16,495 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9d45e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:16, skipping insertion in model container
[2020-09-25 09:49:16,495 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:15" (2/3) ...
[2020-09-25 09:49:16,496 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9d45e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:16, skipping insertion in model container
[2020-09-25 09:49:16,496 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:16" (3/3) ...
[2020-09-25 09:49:16,498 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c
[2020-09-25 09:49:16,512 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:16,524 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:16,550 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:16,591 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:16,591 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:16,592 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:16,592 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:16,592 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:16,592 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:16,592 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:16,593 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:16,624 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states.
[2020-09-25 09:49:16,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:16,645 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:16,646 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]
[2020-09-25 09:49:16,647 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:16,655 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:16,655 INFO  L82        PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times
[2020-09-25 09:49:16,666 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:16,667 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475328909]
[2020-09-25 09:49:16,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:17,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:17,217 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:17,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:17,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:21,569 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:21,569 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:21,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:21,570 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4467
[2020-09-25 09:49:21,575 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:21,576 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:21,576 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:21,577 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 09:49:21,577 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 09:49:21,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 09:49:22,255 WARN  L193               SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:22,258 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:22,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,626 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,635 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:22,635 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,636 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 317
[2020-09-25 09:49:22,636 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,636 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 09:49:22,639 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:49:22,755 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:22,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,760 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,764 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,765 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:22,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,765 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 09:49:22,765 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,766 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:22,767 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,770 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:22,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,778 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,779 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:22,779 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,779 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:22,779 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,780 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:22,781 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,785 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:22,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,789 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,797 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,798 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:22,798 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,798 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:22,799 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,799 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,799 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,799 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,799 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:22,800 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,802 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:22,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,805 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,812 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,812 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:22,813 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,813 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 09:49:22,813 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,813 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:22,814 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:22,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,821 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,825 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,825 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:22,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:22,825 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,826 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:22,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:22,827 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,829 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:22,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,833 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,848 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,848 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:22,849 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,849 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-25 09:49:22,849 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,849 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,850 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:22,850 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:22,850 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:22,850 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,879 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:22,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,884 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,886 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:22,886 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:22,887 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:22,887 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:22,888 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:22,888 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:22,888 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:22,888 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:22,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:22,889 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:22,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:22,932 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475328909]
[2020-09-25 09:49:22,934 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:22,934 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:22,935 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327676057]
[2020-09-25 09:49:22,945 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:22,945 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:22,962 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:22,965 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:22,967 INFO  L87              Difference]: Start difference. First operand 302 states. Second operand 8 states.
[2020-09-25 09:49:23,774 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:25,249 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:25,634 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:26,065 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:26,477 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:26,826 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:27,462 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:27,786 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:28,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:28,842 INFO  L93              Difference]: Finished difference Result 573 states and 709 transitions.
[2020-09-25 09:49:28,843 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:49:28,845 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:28,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:28,882 INFO  L225             Difference]: With dead ends: 573
[2020-09-25 09:49:28,882 INFO  L226             Difference]: Without dead ends: 381
[2020-09-25 09:49:28,895 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:49:28,923 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 381 states.
[2020-09-25 09:49:29,114 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 338.
[2020-09-25 09:49:29,118 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 338 states.
[2020-09-25 09:49:29,125 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 372 transitions.
[2020-09-25 09:49:29,128 INFO  L78                 Accepts]: Start accepts. Automaton has 338 states and 372 transitions. Word has length 153
[2020-09-25 09:49:29,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:29,132 INFO  L479      AbstractCegarLoop]: Abstraction has 338 states and 372 transitions.
[2020-09-25 09:49:29,132 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:29,132 INFO  L276                IsEmpty]: Start isEmpty. Operand 338 states and 372 transitions.
[2020-09-25 09:49:29,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 09:49:29,151 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:29,151 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:29,152 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:29,152 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:29,152 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:29,153 INFO  L82        PathProgramCache]: Analyzing trace with hash 1694501889, now seen corresponding path program 1 times
[2020-09-25 09:49:29,153 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:29,153 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493219747]
[2020-09-25 09:49:29,153 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:29,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:29,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:29,623 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:29,624 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 09:49:29,624 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:29,624 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 405
[2020-09-25 09:49:29,624 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:29,625 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:29,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:29,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 09:49:29,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 09:49:29,625 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:29,920 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:29,921 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:29,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:29,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,230 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:30,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,231 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 273
[2020-09-25 09:49:30,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,232 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 09:49:30,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:30,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,285 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:30,286 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:30,286 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,287 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:30,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:30,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,294 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:30,295 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,295 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:30,295 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,295 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:30,296 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:30,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,312 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,312 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:30,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,313 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:49:30,313 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,313 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:30,314 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:30,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,322 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:30,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:30,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,323 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:30,324 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:30,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,350 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,351 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:30,351 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 09:49:30,352 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,352 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:30,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:30,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 09:49:30,353 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 09:49:30,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,360 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:30,361 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:30,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,362 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:30,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:30,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:30,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,364 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 09:49:30,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,367 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,369 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:30,369 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,369 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:30,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,370 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:30,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:30,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:30,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,373 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 09:49:30,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:30,375 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:30,377 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:30,377 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:30,378 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:30,378 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:30,378 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:30,379 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:30,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:30,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:30,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:30,380 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:30,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:30,454 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493219747]
[2020-09-25 09:49:30,455 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:30,455 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 09:49:30,455 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135682529]
[2020-09-25 09:49:30,457 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 09:49:30,458 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:30,458 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 09:49:30,458 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 09:49:30,458 INFO  L87              Difference]: Start difference. First operand 338 states and 372 transitions. Second operand 5 states.
[2020-09-25 09:49:30,941 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:32,011 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:32,011 INFO  L93              Difference]: Finished difference Result 640 states and 756 transitions.
[2020-09-25 09:49:32,012 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 09:49:32,012 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 09:49:32,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:32,018 INFO  L225             Difference]: With dead ends: 640
[2020-09-25 09:49:32,018 INFO  L226             Difference]: Without dead ends: 412
[2020-09-25 09:49:32,020 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 09:49:32,021 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 412 states.
[2020-09-25 09:49:32,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 343.
[2020-09-25 09:49:32,078 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 343 states.
[2020-09-25 09:49:32,080 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 377 transitions.
[2020-09-25 09:49:32,080 INFO  L78                 Accepts]: Start accepts. Automaton has 343 states and 377 transitions. Word has length 168
[2020-09-25 09:49:32,081 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:32,081 INFO  L479      AbstractCegarLoop]: Abstraction has 343 states and 377 transitions.
[2020-09-25 09:49:32,081 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 09:49:32,081 INFO  L276                IsEmpty]: Start isEmpty. Operand 343 states and 377 transitions.
[2020-09-25 09:49:32,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 09:49:32,084 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:32,084 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:32,085 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:32,085 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:32,085 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:32,085 INFO  L82        PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times
[2020-09-25 09:49:32,086 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:32,086 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408152226]
[2020-09-25 09:49:32,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:32,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:32,159 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:32,159 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:32,165 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:32,193 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:32 BoogieIcfgContainer
[2020-09-25 09:49:32,193 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:32,196 INFO  L168              Benchmark]: Toolchain (without parser) took 17871.27 ms. Allocated memory was 140.5 MB in the beginning and 476.6 MB in the end (delta: 336.1 MB). Free memory was 102.6 MB in the beginning and 366.0 MB in the end (delta: -263.4 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,196 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,197 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 751.96 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 174.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,198 INFO  L168              Benchmark]: Boogie Preprocessor took 98.85 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 170.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,199 INFO  L168              Benchmark]: RCFGBuilder took 1306.66 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 170.0 MB in the beginning and 181.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,200 INFO  L168              Benchmark]: TraceAbstraction took 15704.30 ms. Allocated memory was 238.0 MB in the beginning and 476.6 MB in the end (delta: 238.6 MB). Free memory was 179.6 MB in the beginning and 366.0 MB in the end (delta: -186.4 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:32,204 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 751.96 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 174.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 98.85 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 170.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1306.66 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 170.0 MB in the beginning and 181.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15704.30 ms. Allocated memory was 238.0 MB in the beginning and 476.6 MB in the end (delta: 238.6 MB). Free memory was 179.6 MB in the beginning and 366.0 MB in the end (delta: -186.4 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L458]              int waterLevel  =    1;
[L459]              int methaneLevelCritical  =    0;
[L585]              int cleanupTimeShifts  =    4;
[L686]              int pumpRunning  =    0;
[L687]              int systemActive  =    1;
[L661]              int retValue_acc ;
[L662]              int tmp ;
[L666]  FCALL       select_helpers()
[L667]  FCALL       select_features()
[L668]  CALL, EXPR  valid_product()
[L576]              int retValue_acc ;
[L579]              retValue_acc = 1
[L580]              return (retValue_acc);
[L668]  RET, EXPR   valid_product()
[L668]              tmp = valid_product()
[L670]  COND TRUE   \read(tmp)
[L672]  FCALL       setup()
[L673]  CALL        runTest()
[L655]  CALL        test()
[L857]              int splverifierCounter ;
[L858]              int tmp ;
[L859]              int tmp___0 ;
[L860]              int tmp___1 ;
[L861]              int tmp___2 ;
[L864]              splverifierCounter = 0
[L866]  COND TRUE   1
[L868]  COND TRUE   splverifierCounter < 4
[L874]              tmp = __VERIFIER_nondet_int()
[L876]  COND TRUE   \read(tmp)
[L878]  CALL        waterRise()
[L476]  COND TRUE   waterLevel < 2
[L477]              waterLevel = waterLevel + 1
[L878]  RET         waterRise()
[L884]              tmp___0 = __VERIFIER_nondet_int()
[L886]  COND FALSE  !(\read(tmp___0))
[L894]              tmp___2 = __VERIFIER_nondet_int()
[L896]  COND TRUE   \read(tmp___2)
[L909]  CALL        timeShift()
[L693]  COND FALSE  !(\read(pumpRunning))
[L700]  COND TRUE   \read(systemActive)
[L702]  CALL        processEnvironment()
[L722]              int tmp ;
[L725]  COND FALSE  !(\read(pumpRunning))
[L740]  FCALL       processEnvironment__wrappee__base()
[L702]  RET         processEnvironment()
[L708]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L497]              int retValue_acc ;
[L500]              retValue_acc = methaneLevelCritical
[L501]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L529]              int retValue_acc ;
[L532]              retValue_acc = waterLevel
[L533]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L792]              int retValue_acc ;
[L795]              retValue_acc = pumpRunning
[L796]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 457 SDtfs, 726 SDslu, 666 SDs, 0 SdLazy, 1387 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred 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, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137626 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...