/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=0.4 --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_product10.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:10:46,782 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:10:46,786 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:10:46,835 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:10:46,836 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:10:46,846 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:10:46,849 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:10:46,853 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:10:46,855 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:10:46,859 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:10:46,860 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:10:46,861 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:10:46,862 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:10:46,865 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:10:46,869 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:10:46,871 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:10:46,873 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:10:46,874 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:10:46,876 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:10:46,883 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:10:46,886 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:10:46,887 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:10:46,889 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:10:46,889 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:10:46,894 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:10:46,894 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:10:46,894 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:10:46,897 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:10:46,898 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:10:46,899 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:10:46,900 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:10:46,901 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:10:46,901 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:10:46,902 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:10:46,904 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:10:46,904 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:10:46,905 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:10:46,905 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:10:46,905 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:10:46,906 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:10:46,908 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:10:46,909 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 13:10:46,960 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:10:46,960 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:10:46,962 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:10:46,962 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:10:46,963 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:10:46,963 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:10:46,963 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:10:46,964 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:10:46,964 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:10:46,964 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:10:46,965 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:10:46,966 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:10:46,966 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:10:46,966 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:10:46,966 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:10:46,967 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:10:46,967 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:10:46,967 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:10:46,967 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:10:46,968 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:10:46,968 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:10:46,968 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:46,968 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:10:46,968 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:10:46,969 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:10:46,969 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:10:46,969 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:10:46,969 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:10:46,969 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:10:46,970 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true;
[2020-09-25 13:10:47,418 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:10:47,443 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:10:47,448 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:10:47,450 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:10:47,451 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:10:47,452 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 13:10:47,527 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7/FLAG8e4d87e82
[2020-09-25 13:10:48,162 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:10:48,163 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 13:10:48,177 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7/FLAG8e4d87e82
[2020-09-25 13:10:48,447 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563217c62/c54779292e8b446e8a5ce3ab5fbd1bb7
[2020-09-25 13:10:48,461 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:10:48,465 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:10:48,468 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:48,468 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:10:48,473 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:10:48,474 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:48" (1/1) ...
[2020-09-25 13:10:48,478 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53baac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:48, skipping insertion in model container
[2020-09-25 13:10:48,478 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:48" (1/1) ...
[2020-09-25 13:10:48,487 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:10:48,537 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:10:48,947 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:48,965 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:10:49,066 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:49,116 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:10:49,116 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49 WrapperNode
[2020-09-25 13:10:49,117 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:49,118 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:10:49,118 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:10:49,118 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:10:49,132 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,133 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,154 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,155 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,187 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,199 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,205 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (1/1) ...
[2020-09-25 13:10:49,214 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:10:49,215 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:10:49,215 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:10:49,215 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:10:49,216 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (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 13:10:49,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:10:49,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:10:49,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:49,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:10:49,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:10:49,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:10:49,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:10:49,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:10:49,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:10:49,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:49,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:49,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:49,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:10:49,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 13:10:49,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 13:10:49,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:49,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:10:49,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:10:49,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:10:49,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:10:49,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:10:49,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:10:49,300 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:10:49,301 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:10:49,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:49,303 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:10:49,304 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:10:49,305 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:10:49,306 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:10:49,307 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:10:50,484 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:10:50,484 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:10:50,495 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:50 BoogieIcfgContainer
[2020-09-25 13:10:50,495 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:10:50,498 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:10:50,498 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:10:50,502 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:10:50,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:48" (1/3) ...
[2020-09-25 13:10:50,503 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:50, skipping insertion in model container
[2020-09-25 13:10:50,504 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:49" (2/3) ...
[2020-09-25 13:10:50,504 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ae2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:50, skipping insertion in model container
[2020-09-25 13:10:50,505 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:50" (3/3) ...
[2020-09-25 13:10:50,507 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c
[2020-09-25 13:10:50,519 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:10:50,532 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:10:50,555 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:10:50,600 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:10:50,600 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:10:50,600 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:10:50,600 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:10:50,601 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:10:50,601 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:10:50,601 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:10:50,601 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:10:50,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states.
[2020-09-25 13:10:50,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:10:50,665 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:50,667 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 13:10:50,668 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:50,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:50,678 INFO  L82        PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times
[2020-09-25 13:10:50,691 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:50,692 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156757443]
[2020-09-25 13:10:50,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:51,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:51,190 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:51,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:53,114 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:56,080 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:56,081 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:10:56,082 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:10:56,086 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5021
[2020-09-25 13:10:56,090 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:56,091 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:56,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:10:56,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 13:10:56,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 13:10:56,092 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:10:56,535 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:56,541 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:56,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:56,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:56,921 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:56,922 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:56,922 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:56,922 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 316
[2020-09-25 13:10:56,923 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:56,931 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:56,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:56,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:56,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 13:10:56,933 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 13:10:57,025 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:57,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,030 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,039 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,039 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,039 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,040 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 13:10:57,040 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,040 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,040 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,041 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,043 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:57,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,051 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,051 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:57,052 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,052 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,053 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:57,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,071 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,071 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,071 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,072 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 13:10:57,072 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,072 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:57,073 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,075 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:57,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,083 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,084 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,084 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:10:57,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,084 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:10:57,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,092 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,094 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:57,095 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,096 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:57,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:57,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:57,096 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:10:57,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,106 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,106 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,107 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,107 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:57,107 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,107 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:57,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:57,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:57,108 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,111 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:10:57,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,117 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,117 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,118 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,118 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:57,118 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,119 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:57,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:57,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:57,119 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,179 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 13:10:57,180 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156757443]
[2020-09-25 13:10:57,182 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:57,183 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:10:57,184 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834877939]
[2020-09-25 13:10:57,191 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:10:57,191 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:57,210 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:10:57,211 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:10:57,214 INFO  L87              Difference]: Start difference. First operand 272 states. Second operand 4 states.
[2020-09-25 13:10:57,779 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:58,721 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:10:58,721 INFO  L93              Difference]: Finished difference Result 374 states and 448 transitions.
[2020-09-25 13:10:58,723 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:10:58,725 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:10:58,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:10:58,745 INFO  L225             Difference]: With dead ends: 374
[2020-09-25 13:10:58,745 INFO  L226             Difference]: Without dead ends: 243
[2020-09-25 13:10:58,751 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:10:58,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2020-09-25 13:10:58,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205.
[2020-09-25 13:10:58,850 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-09-25 13:10:58,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions.
[2020-09-25 13:10:58,856 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 153
[2020-09-25 13:10:58,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:10:58,857 INFO  L479      AbstractCegarLoop]: Abstraction has 205 states and 218 transitions.
[2020-09-25 13:10:58,857 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:10:58,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions.
[2020-09-25 13:10:58,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 13:10:58,862 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:58,863 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]
[2020-09-25 13:10:58,863 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:10:58,863 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:58,864 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:58,864 INFO  L82        PathProgramCache]: Analyzing trace with hash -220686317, now seen corresponding path program 1 times
[2020-09-25 13:10:58,864 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:58,864 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894317441]
[2020-09-25 13:10:58,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:58,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:58,974 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:59,206 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:02,604 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:02,604 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 13:11:02,604 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:11:02,604 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3685
[2020-09-25 13:11:02,605 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:02,605 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:02,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:11:02,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 13:11:02,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 99
[2020-09-25 13:11:02,606 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,097 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:03,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:03,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,194 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,404 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:03,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 255
[2020-09-25 13:11:03,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,406 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 13:11:03,407 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,473 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:03,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,476 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:03,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,479 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:03,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,480 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:03,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:03,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,488 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:03,488 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,488 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:03,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,489 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:03,490 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,491 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:03,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,495 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,502 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,503 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:03,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:03,504 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,504 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:03,505 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,508 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:03,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,513 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:03,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,514 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:03,514 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,514 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:03,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,517 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:03,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,522 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:03,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:03,523 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,523 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:03,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,525 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 13:11:03,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:03,532 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:03,532 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,532 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:03,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:03,533 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,535 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 13:11:03,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,546 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,546 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:03,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,547 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:03,547 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,547 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:03,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:03,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:03,548 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,573 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 13:11:03,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,576 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:03,577 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:03,577 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:03,577 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:03,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:03,578 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:03,578 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:03,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:03,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:03,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:03,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:03,649 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 13:11:03,650 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894317441]
[2020-09-25 13:11:03,651 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:03,651 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:11:03,651 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011437047]
[2020-09-25 13:11:03,655 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:11:03,656 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:03,656 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:11:03,656 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:11:03,656 INFO  L87              Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states.
[2020-09-25 13:11:04,190 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:05,398 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:05,728 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:06,104 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:06,445 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:06,781 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:07,222 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:07,540 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:07,925 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:08,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:08,664 INFO  L93              Difference]: Finished difference Result 432 states and 514 transitions.
[2020-09-25 13:11:08,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 13:11:08,665 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 13:11:08,667 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:08,671 INFO  L225             Difference]: With dead ends: 432
[2020-09-25 13:11:08,671 INFO  L226             Difference]: Without dead ends: 320
[2020-09-25 13:11:08,674 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 13:11:08,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2020-09-25 13:11:08,736 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 283.
[2020-09-25 13:11:08,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 283 states.
[2020-09-25 13:11:08,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 309 transitions.
[2020-09-25 13:11:08,739 INFO  L78                 Accepts]: Start accepts. Automaton has 283 states and 309 transitions. Word has length 157
[2020-09-25 13:11:08,740 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:08,740 INFO  L479      AbstractCegarLoop]: Abstraction has 283 states and 309 transitions.
[2020-09-25 13:11:08,740 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:11:08,740 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 309 transitions.
[2020-09-25 13:11:08,744 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 13:11:08,744 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:08,745 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]
[2020-09-25 13:11:08,745 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:08,745 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:08,745 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:08,746 INFO  L82        PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times
[2020-09-25 13:11:08,746 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:08,746 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573764254]
[2020-09-25 13:11:08,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:08,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:08,826 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:08,826 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:08,832 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:08,860 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:08 BoogieIcfgContainer
[2020-09-25 13:11:08,860 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:08,863 INFO  L168              Benchmark]: Toolchain (without parser) took 20400.16 ms. Allocated memory was 141.0 MB in the beginning and 494.4 MB in the end (delta: 353.4 MB). Free memory was 101.8 MB in the beginning and 90.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,864 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,865 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 649.04 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,865 INFO  L168              Benchmark]: Boogie Preprocessor took 96.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,866 INFO  L168              Benchmark]: RCFGBuilder took 1281.00 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.3 MB in the beginning and 180.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,868 INFO  L168              Benchmark]: TraceAbstraction took 18362.44 ms. Allocated memory was 235.9 MB in the beginning and 494.4 MB in the end (delta: 258.5 MB). Free memory was 180.2 MB in the beginning and 90.0 MB in the end (delta: 90.2 MB). Peak memory consumption was 348.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:08,872 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 649.04 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.53 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 170.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1281.00 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 170.3 MB in the beginning and 180.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18362.44 ms. Allocated memory was 235.9 MB in the beginning and 494.4 MB in the end (delta: 258.5 MB). Free memory was 180.2 MB in the beginning and 90.0 MB in the end (delta: 90.2 MB). Peak memory consumption was 348.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L84]               int waterLevel  =    1;
[L85]               int methaneLevelCritical  =    0;
[L342]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L781]              int cleanupTimeShifts  =    4;
[L854]              int retValue_acc ;
[L855]              int tmp ;
[L859]  FCALL       select_helpers()
[L860]  FCALL       select_features()
[L861]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L861]  RET, EXPR   valid_product()
[L861]              tmp = valid_product()
[L863]  COND TRUE   \read(tmp)
[L865]  FCALL       setup()
[L866]  CALL        runTest()
[L848]  CALL        test()
[L543]              int splverifierCounter ;
[L544]              int tmp ;
[L545]              int tmp___0 ;
[L546]              int tmp___1 ;
[L547]              int tmp___2 ;
[L550]              splverifierCounter = 0
[L552]  COND TRUE   1
[L554]  COND TRUE   splverifierCounter < 4
[L560]              tmp = __VERIFIER_nondet_int()
[L562]  COND TRUE   \read(tmp)
[L564]  CALL        waterRise()
[L102]  COND TRUE   waterLevel < 2
[L103]              waterLevel = waterLevel + 1
[L564]  RET         waterRise()
[L570]              tmp___0 = __VERIFIER_nondet_int()
[L572]  COND FALSE  !(\read(tmp___0))
[L580]              tmp___2 = __VERIFIER_nondet_int()
[L582]  COND TRUE   \read(tmp___2)
[L584]  CALL        startSystem()
[L742]              systemActive = 1
[L584]  RET         startSystem()
[L597]  CALL        timeShift()
[L621]  COND FALSE  !(\read(pumpRunning))
[L628]  COND TRUE   \read(systemActive)
[L630]  FCALL       processEnvironment()
[L636]  CALL        __utac_acc__Specification3_spec__1()
[L748]              int tmp ;
[L749]              int tmp___0 ;
[L750]              int tmp___1 ;
[L754]  CALL, EXPR  isMethaneLevelCritical()
[L123]              int retValue_acc ;
[L126]              retValue_acc = methaneLevelCritical
[L127]              return (retValue_acc);
[L754]  RET, EXPR   isMethaneLevelCritical()
[L754]              tmp = isMethaneLevelCritical()
[L756]  COND FALSE  !(\read(tmp))
[L760]  CALL, EXPR  getWaterLevel()
[L155]              int retValue_acc ;
[L158]              retValue_acc = waterLevel
[L159]              return (retValue_acc);
[L760]  RET, EXPR   getWaterLevel()
[L760]              tmp___0 = getWaterLevel()
[L762]  COND TRUE   tmp___0 == 2
[L764]  CALL, EXPR  isPumpRunning()
[L694]              int retValue_acc ;
[L697]              retValue_acc = pumpRunning
[L698]              return (retValue_acc);
[L764]  RET, EXPR   isPumpRunning()
[L764]              tmp___1 = isPumpRunning()
[L766]  COND FALSE  !(\read(tmp___1))
[L770]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 539 SDslu, 722 SDs, 0 SdLazy, 1136 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred 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, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 135396 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...