/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_product06.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 12:03:02,700 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:03:02,704 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:03:02,751 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:03:02,751 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:03:02,759 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:03:02,761 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:03:02,765 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:03:02,768 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:03:02,771 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:03:02,772 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:03:02,773 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:03:02,773 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:03:02,776 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:03:02,779 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:03:02,780 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:03:02,782 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:03:02,783 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:03:02,784 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:03:02,793 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:03:02,795 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:03:02,796 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:03:02,797 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:03:02,798 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:03:02,815 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:03:02,815 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:03:02,816 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:03:02,817 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:03:02,817 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:03:02,821 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:03:02,822 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:03:02,823 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:03:02,823 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:03:02,827 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:03:02,828 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:03:02,828 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:03:02,829 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:03:02,829 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:03:02,830 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:03:02,831 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:03:02,831 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:03:02,833 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 12:03:02,877 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 12:03:02,877 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:03:02,879 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:03:02,880 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 12:03:02,880 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 12:03:02,880 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:03:02,881 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 12:03:02,881 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 12:03:02,881 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 12:03:02,881 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 12:03:02,883 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:03:02,883 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:03:02,883 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:03:02,883 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 12:03:02,884 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 12:03:02,884 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 12:03:02,884 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:03:02,884 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:03:02,885 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 12:03:02,885 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 12:03:02,885 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 12:03:02,885 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:03:02,885 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:03:02,886 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:03:02,886 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:03:02,886 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 12:03:02,886 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:03:02,886 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:03:02,887 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 12:03:02,887 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 12:03:03,328 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:03:03,345 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:03:03,350 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:03:03,352 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 12:03:03,352 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 12:03:03,353 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-25 12:03:03,434 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9b665b0a/4b4d92d0ab6c4552b7562e4c1e8c12f9/FLAG554d801e7
[2020-09-25 12:03:04,031 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 12:03:04,032 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-25 12:03:04,045 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9b665b0a/4b4d92d0ab6c4552b7562e4c1e8c12f9/FLAG554d801e7
[2020-09-25 12:03:04,300 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9b665b0a/4b4d92d0ab6c4552b7562e4c1e8c12f9
[2020-09-25 12:03:04,315 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:03:04,321 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:03:04,322 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:03:04,322 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:03:04,326 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:03:04,328 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:04" (1/1) ...
[2020-09-25 12:03:04,332 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:04, skipping insertion in model container
[2020-09-25 12:03:04,332 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:04" (1/1) ...
[2020-09-25 12:03:04,342 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 12:03:04,388 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:03:04,767 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:03:04,790 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 12:03:04,958 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:03:05,007 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 12:03:05,008 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05 WrapperNode
[2020-09-25 12:03:05,008 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:03:05,009 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:03:05,009 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:03:05,009 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:03:05,024 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,024 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,078 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,078 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,124 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,141 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,146 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (1/1) ...
[2020-09-25 12:03:05,173 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:03:05,174 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:03:05,174 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:03:05,174 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:03:05,177 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (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 12:03:05,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:03:05,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:03:05,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:03:05,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 12:03:05,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 12:03:05,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 12:03:05,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 12:03:05,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 12:03:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 12:03:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 12:03:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 12:03:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 12:03:05,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 12:03:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 12:03:05,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 12:03:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 12:03:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 12:03:05,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 12:03:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 12:03:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 12:03:05,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 12:03:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 12:03:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 12:03:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 12:03:05,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 12:03:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 12:03:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 12:03:05,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 12:03:05,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 12:03:05,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:03:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:03:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 12:03:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 12:03:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 12:03:05,297 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 12:03:05,298 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 12:03:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 12:03:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 12:03:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 12:03:05,299 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 12:03:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 12:03:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 12:03:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 12:03:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 12:03:05,300 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 12:03:05,301 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 12:03:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 12:03:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 12:03:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 12:03:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 12:03:05,302 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:03:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 12:03:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 12:03:05,303 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 12:03:05,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 12:03:05,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 12:03:05,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 12:03:05,306 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 12:03:05,307 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 12:03:05,307 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 12:03:05,307 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 12:03:05,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:03:05,308 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 12:03:05,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:03:06,486 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:03:06,487 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 12:03:06,494 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:06 BoogieIcfgContainer
[2020-09-25 12:03:06,494 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:03:06,495 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:03:06,496 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:03:06,499 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:03:06,500 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:03:04" (1/3) ...
[2020-09-25 12:03:06,500 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab96d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:06, skipping insertion in model container
[2020-09-25 12:03:06,501 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:05" (2/3) ...
[2020-09-25 12:03:06,501 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab96d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:06, skipping insertion in model container
[2020-09-25 12:03:06,501 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:06" (3/3) ...
[2020-09-25 12:03:06,503 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-09-25 12:03:06,514 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:03:06,525 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:03:06,547 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:03:06,577 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:03:06,577 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 12:03:06,577 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:03:06,577 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:03:06,577 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:03:06,577 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 12:03:06,578 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:03:06,578 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:03:06,604 INFO  L276                IsEmpty]: Start isEmpty. Operand 279 states.
[2020-09-25 12:03:06,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 12:03:06,622 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:06,623 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 12:03:06,624 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:06,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:06,630 INFO  L82        PathProgramCache]: Analyzing trace with hash 1857034691, now seen corresponding path program 1 times
[2020-09-25 12:03:06,641 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:06,641 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755601907]
[2020-09-25 12:03:06,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:06,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:07,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:07,459 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:08,924 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,047 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 12:03:12,048 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 12:03:12,048 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5039
[2020-09-25 12:03:12,053 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,053 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 12:03:12,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 12:03:12,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 12:03:12,055 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 12:03:12,503 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:12,506 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:12,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:12,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 273
[2020-09-25 12:03:12,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,820 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 12:03:12,821 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,891 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:12,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,894 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,898 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,898 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:12,898 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,898 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:12,899 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,899 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:12,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:12,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,913 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,917 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,917 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:12,917 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,918 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:12,918 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,918 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:12,919 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,921 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:12,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,925 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,933 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,933 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:12,934 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,934 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 12:03:12,934 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,934 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,935 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,935 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,935 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:12,935 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,937 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:12,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,940 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,943 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,943 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:12,944 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:12,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,944 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 12:03:12,945 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,947 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 12:03:12,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,953 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,954 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:12,954 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,954 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:12,954 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,955 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:12,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:12,955 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:12,957 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 12:03:12,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:12,961 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:12,970 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:12,970 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:12,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:12,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 12:03:12,971 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:12,971 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:12,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 12:03:12,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:12,972 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 12:03:12,972 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:13,001 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 12:03:13,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:13,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:13,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:13,006 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:13,006 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:13,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 12:03:13,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:13,007 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:13,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:13,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:13,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:13,008 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:13,070 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 12:03:13,071 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755601907]
[2020-09-25 12:03:13,073 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:13,074 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 12:03:13,075 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419888047]
[2020-09-25 12:03:13,084 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 12:03:13,085 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:13,102 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 12:03:13,104 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 12:03:13,106 INFO  L87              Difference]: Start difference. First operand 279 states. Second operand 8 states.
[2020-09-25 12:03:13,746 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:15,010 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:15,366 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:15,743 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:16,112 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 12:03:16,461 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:17,044 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:17,365 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 12:03:18,680 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:18,681 INFO  L93              Difference]: Finished difference Result 553 states and 690 transitions.
[2020-09-25 12:03:18,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 12:03:18,684 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 12:03:18,685 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:18,706 INFO  L225             Difference]: With dead ends: 553
[2020-09-25 12:03:18,707 INFO  L226             Difference]: Without dead ends: 368
[2020-09-25 12:03:18,713 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 12:03:18,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 368 states.
[2020-09-25 12:03:18,838 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 324.
[2020-09-25 12:03:18,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 324 states.
[2020-09-25 12:03:18,843 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 358 transitions.
[2020-09-25 12:03:18,846 INFO  L78                 Accepts]: Start accepts. Automaton has 324 states and 358 transitions. Word has length 153
[2020-09-25 12:03:18,847 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:18,847 INFO  L479      AbstractCegarLoop]: Abstraction has 324 states and 358 transitions.
[2020-09-25 12:03:18,847 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 12:03:18,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 324 states and 358 transitions.
[2020-09-25 12:03:18,853 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 12:03:18,854 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:18,854 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 12:03:18,854 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:03:18,855 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:18,855 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:18,855 INFO  L82        PathProgramCache]: Analyzing trace with hash 243835995, now seen corresponding path program 1 times
[2020-09-25 12:03:18,856 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:18,856 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409556145]
[2020-09-25 12:03:18,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:18,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:18,972 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 12:03:19,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 353
[2020-09-25 12:03:19,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 12:03:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 12:03:19,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,551 WARN  L193               SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 12:03:19,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:03:19,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,674 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,674 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 12:03:19,675 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,675 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 113
[2020-09-25 12:03:19,676 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,676 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,676 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,677 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,723 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 12:03:19,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,725 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,727 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,728 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:19,728 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,728 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,729 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,729 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,730 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,732 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 12:03:19,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,733 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,735 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,736 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:19,736 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,736 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,736 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,737 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,738 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,739 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 12:03:19,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,741 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,746 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:19,747 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,747 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 12:03:19,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,748 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,749 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,751 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 12:03:19,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,754 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,754 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:03:19,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,755 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,756 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,757 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,774 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 12:03:19,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,777 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,781 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:03:19,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 12:03:19,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,783 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,784 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,795 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 12:03:19,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,801 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,801 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 12:03:19,802 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,802 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:03:19,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,802 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:03:19,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:03:19,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 12:03:19,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 12:03:19,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,810 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,811 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:19,811 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,811 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,812 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,812 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:19,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,813 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 12:03:19,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,817 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,819 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:19,820 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,820 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,820 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,821 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,821 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:19,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,822 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,823 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 12:03:19,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:03:19,826 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:03:19,828 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:03:19,828 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 12:03:19,828 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:03:19,829 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:03:19,829 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:03:19,829 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:03:19,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:03:19,830 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 12:03:19,830 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:03:19,830 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:03:19,902 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 12:03:19,903 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409556145]
[2020-09-25 12:03:19,903 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:03:19,904 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 12:03:19,904 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697283640]
[2020-09-25 12:03:19,906 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 12:03:19,907 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:03:19,907 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 12:03:19,907 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 12:03:19,908 INFO  L87              Difference]: Start difference. First operand 324 states and 358 transitions. Second operand 6 states.
[2020-09-25 12:03:20,473 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 12:03:21,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:03:21,746 INFO  L93              Difference]: Finished difference Result 681 states and 837 transitions.
[2020-09-25 12:03:21,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 12:03:21,747 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 12:03:21,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:03:21,753 INFO  L225             Difference]: With dead ends: 681
[2020-09-25 12:03:21,754 INFO  L226             Difference]: Without dead ends: 467
[2020-09-25 12:03:21,756 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 12:03:21,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 467 states.
[2020-09-25 12:03:21,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 329.
[2020-09-25 12:03:21,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 329 states.
[2020-09-25 12:03:21,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 363 transitions.
[2020-09-25 12:03:21,830 INFO  L78                 Accepts]: Start accepts. Automaton has 329 states and 363 transitions. Word has length 172
[2020-09-25 12:03:21,831 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:03:21,831 INFO  L479      AbstractCegarLoop]: Abstraction has 329 states and 363 transitions.
[2020-09-25 12:03:21,831 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 12:03:21,831 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states and 363 transitions.
[2020-09-25 12:03:21,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 12:03:21,836 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 12:03:21,836 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, 1, 1, 1]
[2020-09-25 12:03:21,836 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:03:21,837 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:03:21,837 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:03:21,837 INFO  L82        PathProgramCache]: Analyzing trace with hash -1398687596, now seen corresponding path program 1 times
[2020-09-25 12:03:21,837 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:03:21,838 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763878799]
[2020-09-25 12:03:21,838 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:03:21,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:03:21,912 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:03:21,912 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:03:21,918 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:03:21,945 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:03:21 BoogieIcfgContainer
[2020-09-25 12:03:21,945 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:03:21,948 INFO  L168              Benchmark]: Toolchain (without parser) took 17631.27 ms. Allocated memory was 140.0 MB in the beginning and 487.1 MB in the end (delta: 347.1 MB). Free memory was 100.4 MB in the beginning and 329.7 MB in the end (delta: -229.3 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,949 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,950 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 686.78 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 174.1 MB in the end (delta: -74.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,951 INFO  L168              Benchmark]: Boogie Preprocessor took 164.32 ms. Allocated memory is still 203.9 MB. Free memory was 174.1 MB in the beginning and 170.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,952 INFO  L168              Benchmark]: RCFGBuilder took 1320.47 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.1 MB in the beginning and 182.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,953 INFO  L168              Benchmark]: TraceAbstraction took 15450.13 ms. Allocated memory was 237.0 MB in the beginning and 487.1 MB in the end (delta: 250.1 MB). Free memory was 182.1 MB in the beginning and 329.7 MB in the end (delta: -147.6 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB.
[2020-09-25 12:03:21,956 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 686.78 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 174.1 MB in the end (delta: -74.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 164.32 ms. Allocated memory is still 203.9 MB. Free memory was 174.1 MB in the beginning and 170.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1320.47 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.1 MB in the beginning and 182.1 MB in the end (delta: -12.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15450.13 ms. Allocated memory was 237.0 MB in the beginning and 487.1 MB in the end (delta: 250.1 MB). Free memory was 182.1 MB in the beginning and 329.7 MB in the end (delta: -147.6 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L96]               int pumpRunning  =    0;
[L97]               int systemActive  =    1;
[L309]              int waterLevel  =    1;
[L310]              int methaneLevelCritical  =    0;
[L389]              int cleanupTimeShifts  =    4;
[L654]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int retValue_acc ;
[L463]              int tmp ;
[L467]  FCALL       select_helpers()
[L468]  FCALL       select_features()
[L469]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L469]  RET, EXPR   valid_product()
[L469]              tmp = valid_product()
[L471]  COND TRUE   \read(tmp)
[L473]  FCALL       setup()
[L474]  CALL        runTest()
[L456]  CALL        test()
[L242]              int splverifierCounter ;
[L243]              int tmp ;
[L244]              int tmp___0 ;
[L245]              int tmp___1 ;
[L246]              int tmp___2 ;
[L249]              splverifierCounter = 0
[L251]  COND TRUE   1
[L253]  COND TRUE   splverifierCounter < 4
[L259]              tmp = __VERIFIER_nondet_int()
[L261]  COND TRUE   \read(tmp)
[L263]  CALL        waterRise()
[L327]  COND TRUE   waterLevel < 2
[L328]              waterLevel = waterLevel + 1
[L263]  RET         waterRise()
[L269]              tmp___0 = __VERIFIER_nondet_int()
[L271]  COND FALSE  !(\read(tmp___0))
[L279]              tmp___2 = __VERIFIER_nondet_int()
[L281]  COND TRUE   \read(tmp___2)
[L283]  CALL        startSystem()
[L233]              systemActive = 1
[L283]  RET         startSystem()
[L296]  CALL        timeShift()
[L104]  COND FALSE  !(\read(pumpRunning))
[L111]  COND TRUE   \read(systemActive)
[L113]  CALL        processEnvironment()
[L133]              int tmp ;
[L136]  COND FALSE  !(\read(pumpRunning))
[L151]  FCALL       processEnvironment__wrappee__base()
[L113]  RET         processEnvironment()
[L119]  CALL        __utac_acc__Specification3_spec__1()
[L852]              int tmp ;
[L853]              int tmp___0 ;
[L854]              int tmp___1 ;
[L858]  CALL, EXPR  isMethaneLevelCritical()
[L348]              int retValue_acc ;
[L351]              retValue_acc = methaneLevelCritical
[L352]              return (retValue_acc);
[L858]  RET, EXPR   isMethaneLevelCritical()
[L858]              tmp = isMethaneLevelCritical()
[L860]  COND FALSE  !(\read(tmp))
[L864]  CALL, EXPR  getWaterLevel()
[L380]              int retValue_acc ;
[L383]              retValue_acc = waterLevel
[L384]              return (retValue_acc);
[L864]  RET, EXPR   getWaterLevel()
[L864]              tmp___0 = getWaterLevel()
[L866]  COND TRUE   tmp___0 == 2
[L868]  CALL, EXPR  isPumpRunning()
[L185]              int retValue_acc ;
[L188]              retValue_acc = pumpRunning
[L189]              return (retValue_acc);
[L868]  RET, EXPR   isPumpRunning()
[L868]              tmp___1 = isPumpRunning()
[L870]  COND FALSE  !(\read(tmp___1))
[L874]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 455 SDtfs, 878 SDslu, 730 SDs, 0 SdLazy, 1412 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 182 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 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...