/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=0.3 --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
[2020-09-25 12:04:50,853 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:04:50,858 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:04:50,904 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:04:50,905 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:04:50,916 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:04:50,918 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:04:50,922 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:04:50,925 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:04:50,928 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:04:50,930 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:04:50,931 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:04:50,931 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:04:50,934 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:04:50,937 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:04:50,940 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:04:50,941 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:04:50,943 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:04:50,944 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:04:50,953 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:04:50,956 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:04:50,957 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:04:50,959 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:04:50,959 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:04:50,963 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:04:50,963 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:04:50,964 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:04:50,967 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:04:50,967 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:04:50,969 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:04:50,970 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:04:50,971 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:04:50,971 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:04:50,972 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:04:50,973 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:04:50,974 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:04:50,974 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:04:50,974 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:04:50,975 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:04:50,976 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:04:50,977 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:04:50,978 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 12:04:51,028 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 12:04:51,028 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:04:51,030 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:04:51,031 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 12:04:51,031 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 12:04:51,031 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:04:51,032 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 12:04:51,032 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 12:04:51,032 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 12:04:51,032 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 12:04:51,033 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:04:51,034 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:04:51,034 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:04:51,034 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 12:04:51,035 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 12:04:51,035 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 12:04:51,035 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:04:51,035 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:04:51,035 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 12:04:51,036 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 12:04:51,036 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 12:04:51,036 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:04:51,036 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:04:51,037 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:04:51,037 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:04:51,037 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 12:04:51,037 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:04:51,037 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:04:51,038 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 12:04:51,038 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true;
[2020-09-25 12:04:51,506 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:04:51,531 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:04:51,539 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:04:51,541 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 12:04:51,542 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 12:04:51,543 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c
[2020-09-25 12:04:51,627 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9808f0c8/06dafb4670234311bdb9999978d47902/FLAG767872d0f
[2020-09-25 12:04:52,270 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 12:04:52,271 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c
[2020-09-25 12:04:52,285 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9808f0c8/06dafb4670234311bdb9999978d47902/FLAG767872d0f
[2020-09-25 12:04:52,543 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9808f0c8/06dafb4670234311bdb9999978d47902
[2020-09-25 12:04:52,560 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:04:52,570 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:04:52,574 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:04:52,574 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:04:52,579 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:04:52,581 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:52" (1/1) ...
[2020-09-25 12:04:52,587 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52, skipping insertion in model container
[2020-09-25 12:04:52,587 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:52" (1/1) ...
[2020-09-25 12:04:52,599 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 12:04:52,657 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:04:53,196 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:04:53,223 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 12:04:53,333 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:04:53,373 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 12:04:53,374 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53 WrapperNode
[2020-09-25 12:04:53,374 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:04:53,375 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:04:53,375 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:04:53,376 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:04:53,394 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,395 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,418 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,419 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,455 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,468 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,473 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (1/1) ...
[2020-09-25 12:04:53,482 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:04:53,482 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:04:53,483 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:04:53,483 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:04:53,485 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (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 12:04:53,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:04:53,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:04:53,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:04:53,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 12:04:53,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 12:04:53,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:04:53,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 12:04:53,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 12:04:53,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 12:04:53,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 12:04:53,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 12:04:53,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 12:04:53,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 12:04:53,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:04:53,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 12:04:53,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 12:04:53,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 12:04:53,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 12:04:53,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 12:04:53,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 12:04:53,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 12:04:53,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 12:04:53,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 12:04:53,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 12:04:53,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 12:04:53,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 12:04:53,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 12:04:53,572 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:04:53,572 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 12:04:53,572 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 12:04:53,573 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 12:04:53,573 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 12:04:53,573 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 12:04:53,573 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 12:04:53,574 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 12:04:53,574 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 12:04:53,574 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 12:04:53,574 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 12:04:53,575 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 12:04:53,576 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 12:04:53,576 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 12:04:53,576 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 12:04:53,576 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 12:04:53,576 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 12:04:53,577 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 12:04:53,577 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 12:04:53,577 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 12:04:53,578 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:04:53,578 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:04:53,579 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 12:04:53,580 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 12:04:53,581 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 12:04:53,581 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 12:04:53,581 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 12:04:53,581 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:04:53,582 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 12:04:53,582 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 12:04:53,583 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 12:04:53,584 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 12:04:53,585 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 12:04:53,585 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:04:53,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 12:04:53,585 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:04:54,817 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:04:54,817 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 12:04:54,829 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:54 BoogieIcfgContainer
[2020-09-25 12:04:54,829 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:04:54,832 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:04:54,832 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:04:54,836 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:04:54,836 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:52" (1/3) ...
[2020-09-25 12:04:54,838 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4ae8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:54, skipping insertion in model container
[2020-09-25 12:04:54,838 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:53" (2/3) ...
[2020-09-25 12:04:54,839 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4ae8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:54, skipping insertion in model container
[2020-09-25 12:04:54,839 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:54" (3/3) ...
[2020-09-25 12:04:54,842 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c
[2020-09-25 12:04:54,854 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:04:54,864 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:04:54,883 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:04:54,912 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:04:54,912 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 12:04:54,913 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:04:54,913 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:04:54,913 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:04:54,913 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 12:04:54,913 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:04:54,913 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:04:54,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 353 states.
[2020-09-25 12:04:54,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 12:04:54,965 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:04:54,966 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 12:04:54,967 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:04:54,974 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:04:54,975 INFO  L82        PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times
[2020-09-25 12:04:54,986 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:04:54,987 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55162551]
[2020-09-25 12:04:54,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:04:55,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:04:55,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:04:55,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:04:57,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:00,425 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:00,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 12:05:00,426 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 12:05:00,426 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5053
[2020-09-25 12:05:00,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:00,439 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:00,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 12:05:00,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 12:05:00,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 12:05:00,440 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 13
[2020-09-25 12:05:00,986 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:05:00,990 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:05:01,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,093 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,353 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:05:01,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,354 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 304
[2020-09-25 12:05:01,354 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,354 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 12:05:01,355 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,428 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:05:01,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,431 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,436 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,436 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:01,436 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,436 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:05:01,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,437 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:05:01,438 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,439 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:05:01,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,442 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:01,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:05:01,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,446 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:05:01,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:05:01,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,461 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,461 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:01,461 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,462 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 12:05:01,462 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,462 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,462 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:05:01,463 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,466 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:05:01,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,469 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,472 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,472 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:01,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,473 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:05:01,473 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,474 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:05:01,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,477 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 12:05:01,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,484 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,484 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:01,485 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,485 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:05:01,485 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,485 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:01,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:05:01,486 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:05:01,488 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 12:05:01,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,501 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,501 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:01,502 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,502 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 12:05:01,502 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,502 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 12:05:01,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:01,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:05:01,503 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,530 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 12:05:01,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:01,533 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:01,535 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:01,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:01,536 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:01,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:05:01,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:01,536 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:01,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:01,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:05:01,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:01,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:01,573 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 12:05:01,573 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55162551]
[2020-09-25 12:05:01,576 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:05:01,576 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 12:05:01,577 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646017657]
[2020-09-25 12:05:01,584 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 12:05:01,584 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:05:01,601 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 12:05:01,602 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 12:05:01,605 INFO  L87              Difference]: Start difference. First operand 353 states. Second operand 8 states.
[2020-09-25 12:05:02,227 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:05:04,022 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:05:04,435 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:05:04,911 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:05:05,363 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:05:05,682 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:05:06,656 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:05:06,995 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:05:08,779 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:05:08,780 INFO  L93              Difference]: Finished difference Result 782 states and 982 transitions.
[2020-09-25 12:05:08,781 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 12:05:08,783 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 12:05:08,784 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:05:08,805 INFO  L225             Difference]: With dead ends: 782
[2020-09-25 12:05:08,805 INFO  L226             Difference]: Without dead ends: 523
[2020-09-25 12:05:08,812 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 12:05:08,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 523 states.
[2020-09-25 12:05:08,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 468.
[2020-09-25 12:05:08,971 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 468 states.
[2020-09-25 12:05:08,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 532 transitions.
[2020-09-25 12:05:08,977 INFO  L78                 Accepts]: Start accepts. Automaton has 468 states and 532 transitions. Word has length 153
[2020-09-25 12:05:08,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:05:08,979 INFO  L479      AbstractCegarLoop]: Abstraction has 468 states and 532 transitions.
[2020-09-25 12:05:08,979 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 12:05:08,979 INFO  L276                IsEmpty]: Start isEmpty. Operand 468 states and 532 transitions.
[2020-09-25 12:05:08,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 12:05:08,986 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:05:08,987 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]
[2020-09-25 12:05:08,987 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:05:08,987 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:05:08,988 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:05:08,988 INFO  L82        PathProgramCache]: Analyzing trace with hash -74683612, now seen corresponding path program 1 times
[2020-09-25 12:05:08,988 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:05:08,989 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936468194]
[2020-09-25 12:05:08,989 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:05:09,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:09,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:09,434 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:09,435 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 12:05:09,435 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:09,435 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 386
[2020-09-25 12:05:09,435 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:09,436 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:09,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:09,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 12:05:09,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 12:05:09,436 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:09,793 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:05:09,794 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:05:09,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:09,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:09,953 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:09,953 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:05:09,954 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:09,954 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 148
[2020-09-25 12:05:09,954 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:09,954 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:09,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:09,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:09,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:09,955 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:05:09,995 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:05:09,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:09,998 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,001 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,002 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:10,002 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,002 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:05:10,003 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,003 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,004 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,005 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:05:10,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,010 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,011 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,012 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:10,012 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,012 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:05:10,012 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,012 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:05:10,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,017 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,020 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,020 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:10,021 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,021 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:05:10,021 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,021 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,022 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,025 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:05:10,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,027 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,028 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,029 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:05:10,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:05:10,029 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,030 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,039 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 12:05:10,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,048 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:05:10,048 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,048 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 12:05:10,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,051 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,060 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 12:05:10,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,063 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,067 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,067 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 12:05:10,067 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,067 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:05:10,068 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,068 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:05:10,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:05:10,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 12:05:10,069 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 12:05:10,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,076 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:10,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,076 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:05:10,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,077 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:05:10,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,078 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:05:10,079 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 12:05:10,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,081 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,083 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,083 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:10,083 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,083 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:05:10,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,084 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:05:10,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 12:05:10,086 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 12:05:10,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:05:10,088 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:05:10,101 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:05:10,101 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:05:10,101 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:05:10,101 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 12:05:10,106 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:05:10,106 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:05:10,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:05:10,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:05:10,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:05:10,107 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 12:05:10,150 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 12:05:10,151 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936468194]
[2020-09-25 12:05:10,151 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:05:10,152 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 12:05:10,153 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991568367]
[2020-09-25 12:05:10,158 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 12:05:10,158 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:05:10,158 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 12:05:10,159 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 12:05:10,159 INFO  L87              Difference]: Start difference. First operand 468 states and 532 transitions. Second operand 6 states.
[2020-09-25 12:05:10,646 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:05:14,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:05:14,137 INFO  L93              Difference]: Finished difference Result 1399 states and 1745 transitions.
[2020-09-25 12:05:14,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 12:05:14,138 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 12:05:14,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:05:14,149 INFO  L225             Difference]: With dead ends: 1399
[2020-09-25 12:05:14,149 INFO  L226             Difference]: Without dead ends: 1041
[2020-09-25 12:05:14,152 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
[2020-09-25 12:05:14,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1041 states.
[2020-09-25 12:05:14,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 809.
[2020-09-25 12:05:14,285 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 809 states.
[2020-09-25 12:05:14,290 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 938 transitions.
[2020-09-25 12:05:14,291 INFO  L78                 Accepts]: Start accepts. Automaton has 809 states and 938 transitions. Word has length 172
[2020-09-25 12:05:14,292 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:05:14,292 INFO  L479      AbstractCegarLoop]: Abstraction has 809 states and 938 transitions.
[2020-09-25 12:05:14,292 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 12:05:14,292 INFO  L276                IsEmpty]: Start isEmpty. Operand 809 states and 938 transitions.
[2020-09-25 12:05:14,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 12:05:14,298 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:05:14,299 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]
[2020-09-25 12:05:14,299 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:05:14,299 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:05:14,299 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:05:14,300 INFO  L82        PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times
[2020-09-25 12:05:14,300 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:05:14,300 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264693591]
[2020-09-25 12:05:14,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:05:14,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:05:14,375 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:05:14,375 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:05:14,380 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:05:14,409 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:05:14 BoogieIcfgContainer
[2020-09-25 12:05:14,409 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:05:14,412 INFO  L168              Benchmark]: Toolchain (without parser) took 21849.37 ms. Allocated memory was 137.9 MB in the beginning and 530.1 MB in the end (delta: 392.2 MB). Free memory was 100.3 MB in the beginning and 338.1 MB in the end (delta: -237.7 MB). Peak memory consumption was 154.4 MB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,413 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,414 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 800.82 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 168.9 MB in the end (delta: -69.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,415 INFO  L168              Benchmark]: Boogie Preprocessor took 106.84 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 164.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,416 INFO  L168              Benchmark]: RCFGBuilder took 1347.03 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 169.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,419 INFO  L168              Benchmark]: TraceAbstraction took 19577.78 ms. Allocated memory was 231.7 MB in the beginning and 530.1 MB in the end (delta: 298.3 MB). Free memory was 169.1 MB in the beginning and 338.1 MB in the end (delta: -169.0 MB). Peak memory consumption was 129.4 MB. Max. memory is 7.1 GB.
[2020-09-25 12:05:14,423 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 800.82 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 168.9 MB in the end (delta: -69.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 106.84 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 164.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1347.03 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 169.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19577.78 ms. Allocated memory was 231.7 MB in the beginning and 530.1 MB in the end (delta: 298.3 MB). Free memory was 169.1 MB in the beginning and 338.1 MB in the end (delta: -169.0 MB). Peak memory consumption was 129.4 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: 19.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 643 SDtfs, 1312 SDslu, 824 SDs, 0 SdLazy, 2321 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s 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...