/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:42,965 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:42,969 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:42,995 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:42,996 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:42,997 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:42,998 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:43,000 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:43,002 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:43,003 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:43,004 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:43,006 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:43,006 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:43,007 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:43,008 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:43,009 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:43,010 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:43,015 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:43,019 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:43,021 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:43,026 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:43,027 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:43,029 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:43,030 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:43,032 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:43,032 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:43,033 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:43,034 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:43,034 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:43,035 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:43,036 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:43,036 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:43,037 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:43,038 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:43,040 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:43,040 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:43,041 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:43,041 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:43,041 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:43,042 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:43,043 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:43,044 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 14:18:43,069 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:43,069 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:43,071 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:43,071 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:43,071 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:43,071 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:43,071 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:43,072 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:43,072 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:43,072 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:43,072 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:43,072 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:43,073 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:43,073 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:43,073 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:43,073 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:43,073 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:43,074 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:43,074 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:43,074 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:43,074 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:43,074 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:43,075 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:43,075 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:43,075 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:43,075 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:43,076 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:43,076 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:43,076 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:43,076 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true;
[2020-09-25 14:18:43,528 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:43,550 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:43,555 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:43,557 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:43,558 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:43,559 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-09-25 14:18:43,639 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/530669630/da5ec083f26d490ba85028afe52e654a/FLAGacc7866ad
[2020-09-25 14:18:44,237 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:44,238 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-09-25 14:18:44,253 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/530669630/da5ec083f26d490ba85028afe52e654a/FLAGacc7866ad
[2020-09-25 14:18:44,502 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/530669630/da5ec083f26d490ba85028afe52e654a
[2020-09-25 14:18:44,515 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:44,521 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:44,522 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:44,523 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:44,527 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:44,530 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,534 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44, skipping insertion in model container
[2020-09-25 14:18:44,535 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,543 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:44,606 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:44,957 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:44,980 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:45,158 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:45,201 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:45,203 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45 WrapperNode
[2020-09-25 14:18:45,203 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:45,204 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:45,210 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:45,210 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:45,228 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,230 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,271 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,272 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,326 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,341 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,355 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (1/1) ...
[2020-09-25 14:18:45,364 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:45,364 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:45,364 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:45,365 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:45,366 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (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 14:18:45,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:45,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:45,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:45,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:45,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:45,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:45,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:45,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:45,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:45,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:45,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:18:45,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:45,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:45,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:45,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:45,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:18:45,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:45,477 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:45,477 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:45,477 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:45,477 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:45,478 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:45,479 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:45,480 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:45,480 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:45,480 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:45,480 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:45,480 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:45,481 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:45,481 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:45,481 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:45,481 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:45,481 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:45,482 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:45,482 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:45,482 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:45,482 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:18:45,482 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:45,483 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:45,484 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:45,485 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:45,485 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:45,485 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:45,485 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:18:45,485 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 14:18:45,486 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:45,486 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:45,486 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:45,486 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:46,764 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:46,765 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:46,772 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:46 BoogieIcfgContainer
[2020-09-25 14:18:46,772 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:46,773 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:46,773 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:46,777 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:46,777 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:44" (1/3) ...
[2020-09-25 14:18:46,778 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716cfb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:46, skipping insertion in model container
[2020-09-25 14:18:46,778 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:45" (2/3) ...
[2020-09-25 14:18:46,779 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716cfb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:46, skipping insertion in model container
[2020-09-25 14:18:46,779 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:46" (3/3) ...
[2020-09-25 14:18:46,781 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c
[2020-09-25 14:18:46,792 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:46,803 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:46,824 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:46,856 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:46,856 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:46,856 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:46,856 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:46,856 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:46,856 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:46,857 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:46,857 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:46,885 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states.
[2020-09-25 14:18:46,903 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:46,903 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:46,905 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 14:18:46,905 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:46,912 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:46,913 INFO  L82        PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times
[2020-09-25 14:18:46,923 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:46,924 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921774997]
[2020-09-25 14:18:46,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:47,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,662 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:48,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:51,702 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:51,703 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:51,703 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:51,704 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4413
[2020-09-25 14:18:51,709 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:51,709 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:51,709 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:51,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 14:18:51,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-25 14:18:51,710 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 14:18:52,149 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:52,153 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:52,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,595 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,604 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:52,605 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,606 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 372
[2020-09-25 14:18:52,606 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,606 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 14:18:52,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 14:18:52,749 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:52,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,757 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,758 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:52,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,759 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,763 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:52,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,765 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,769 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,769 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:52,770 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,770 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,771 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:18:52,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:52,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,777 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,788 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,788 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 14:18:52,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,789 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:52,791 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,793 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:52,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,799 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,800 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,800 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:52,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,801 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:52,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,808 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,810 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,811 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,811 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,811 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,812 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,812 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,813 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,814 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,816 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:52,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,821 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,821 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,822 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,822 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,822 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,823 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:52,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,830 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,830 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,831 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,873 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 14:18:52,874 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921774997]
[2020-09-25 14:18:52,877 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:52,877 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:52,878 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747245292]
[2020-09-25 14:18:52,887 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:52,888 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:52,907 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:52,908 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:52,911 INFO  L87              Difference]: Start difference. First operand 302 states. Second operand 4 states.
[2020-09-25 14:18:53,585 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:54,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:54,509 INFO  L93              Difference]: Finished difference Result 435 states and 517 transitions.
[2020-09-25 14:18:54,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:54,511 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:54,512 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:54,531 INFO  L225             Difference]: With dead ends: 435
[2020-09-25 14:18:54,531 INFO  L226             Difference]: Without dead ends: 274
[2020-09-25 14:18:54,537 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:54,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2020-09-25 14:18:54,662 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235.
[2020-09-25 14:18:54,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 235 states.
[2020-09-25 14:18:54,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions.
[2020-09-25 14:18:54,670 INFO  L78                 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 153
[2020-09-25 14:18:54,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:54,671 INFO  L479      AbstractCegarLoop]: Abstraction has 235 states and 252 transitions.
[2020-09-25 14:18:54,671 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:54,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions.
[2020-09-25 14:18:54,678 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:18:54,678 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:54,678 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]
[2020-09-25 14:18:54,679 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:54,679 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:54,679 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:54,680 INFO  L82        PathProgramCache]: Analyzing trace with hash 1541865088, now seen corresponding path program 1 times
[2020-09-25 14:18:54,680 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:54,680 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828183883]
[2020-09-25 14:18:54,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:54,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:54,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:55,038 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,185 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,186 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:18:58,186 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:58,187 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3432
[2020-09-25 14:18:58,187 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,187 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:58,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:18:58,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-25 14:18:58,189 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:58,613 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:58,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:58,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:58,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,907 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,907 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:58,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:58,908 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 255
[2020-09-25 14:18:58,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,908 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:58,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:58,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:18:58,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:58,958 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:58,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:58,961 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,965 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,965 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:58,965 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:58,965 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:58,966 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,966 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:58,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:58,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:58,967 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:58,968 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:58,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:58,970 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,975 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,975 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:58,975 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:58,975 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:58,976 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,976 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:58,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:58,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:58,977 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:58,978 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:58,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:58,981 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,989 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,990 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:58,990 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:58,990 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:58,990 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,990 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:58,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:58,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:58,991 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:18:58,994 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:58,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:58,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:58,998 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:58,998 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:58,998 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:58,998 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:58,999 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:58,999 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:58,999 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:58,999 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:59,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:59,000 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:59,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:59,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,018 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,021 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,021 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:18:59,021 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:59,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:59,022 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,025 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:59,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:59,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:18:59,026 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 14:18:59,028 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:18:59,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,030 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,031 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,031 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:59,032 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:59,032 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 14:18:59,032 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,032 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,033 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:59,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:59,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:59,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 14:18:59,037 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:18:59,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:59,050 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:59,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:18:59,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,051 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:59,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:59,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:59,053 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:59,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:18:59,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,065 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,066 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:59,066 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:59,066 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:59,067 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,067 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:59,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:59,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:59,068 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:59,103 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:18:59,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,107 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,107 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:59,108 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:59,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:59,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,108 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:59,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:59,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:59,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:59,144 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 14:18:59,145 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828183883]
[2020-09-25 14:18:59,145 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:59,145 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:18:59,145 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373008644]
[2020-09-25 14:18:59,148 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:18:59,148 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:59,148 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:18:59,148 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:18:59,148 INFO  L87              Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states.
[2020-09-25 14:18:59,662 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:01,364 WARN  L193               SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:19:01,971 WARN  L193               SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:19:02,347 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:02,696 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:19:03,042 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:03,492 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:19:03,841 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:19:04,247 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:05,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:05,518 INFO  L93              Difference]: Finished difference Result 587 states and 734 transitions.
[2020-09-25 14:19:05,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:19:05,519 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:19:05,520 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:05,534 INFO  L225             Difference]: With dead ends: 587
[2020-09-25 14:19:05,534 INFO  L226             Difference]: Without dead ends: 438
[2020-09-25 14:19:05,541 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:19:05,542 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-25 14:19:05,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 345.
[2020-09-25 14:19:05,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 345 states.
[2020-09-25 14:19:05,621 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 380 transitions.
[2020-09-25 14:19:05,622 INFO  L78                 Accepts]: Start accepts. Automaton has 345 states and 380 transitions. Word has length 162
[2020-09-25 14:19:05,622 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:05,622 INFO  L479      AbstractCegarLoop]: Abstraction has 345 states and 380 transitions.
[2020-09-25 14:19:05,623 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:19:05,623 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 380 transitions.
[2020-09-25 14:19:05,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 14:19:05,627 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:05,627 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:19:05,627 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:05,627 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:05,628 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:05,628 INFO  L82        PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times
[2020-09-25 14:19:05,628 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:05,628 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029461111]
[2020-09-25 14:19:05,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:05,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:05,703 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:05,703 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:05,708 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:05,734 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:05 BoogieIcfgContainer
[2020-09-25 14:19:05,735 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:05,737 INFO  L168              Benchmark]: Toolchain (without parser) took 21219.67 ms. Allocated memory was 138.9 MB in the beginning and 488.6 MB in the end (delta: 349.7 MB). Free memory was 101.4 MB in the beginning and 286.1 MB in the end (delta: -184.7 MB). Peak memory consumption was 165.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,738 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,739 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 681.15 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 173.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,740 INFO  L168              Benchmark]: Boogie Preprocessor took 160.04 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 166.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,741 INFO  L168              Benchmark]: RCFGBuilder took 1407.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.8 MB in the beginning and 177.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,741 INFO  L168              Benchmark]: TraceAbstraction took 18961.58 ms. Allocated memory was 234.9 MB in the beginning and 488.6 MB in the end (delta: 253.8 MB). Free memory was 177.9 MB in the beginning and 286.1 MB in the end (delta: -108.2 MB). Peak memory consumption was 145.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:05,745 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 681.15 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 173.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 160.04 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 166.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1407.86 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.8 MB in the beginning and 177.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18961.58 ms. Allocated memory was 234.9 MB in the beginning and 488.6 MB in the end (delta: 253.8 MB). Free memory was 177.9 MB in the beginning and 286.1 MB in the end (delta: -108.2 MB). Peak memory consumption was 145.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L458]              int waterLevel  =    1;
[L459]              int methaneLevelCritical  =    0;
[L585]              int cleanupTimeShifts  =    4;
[L686]              int pumpRunning  =    0;
[L687]              int systemActive  =    1;
[L661]              int retValue_acc ;
[L662]              int tmp ;
[L666]  FCALL       select_helpers()
[L667]  FCALL       select_features()
[L668]  CALL, EXPR  valid_product()
[L576]              int retValue_acc ;
[L579]              retValue_acc = 1
[L580]              return (retValue_acc);
[L668]  RET, EXPR   valid_product()
[L668]              tmp = valid_product()
[L670]  COND TRUE   \read(tmp)
[L672]  FCALL       setup()
[L673]  CALL        runTest()
[L655]  CALL        test()
[L857]              int splverifierCounter ;
[L858]              int tmp ;
[L859]              int tmp___0 ;
[L860]              int tmp___1 ;
[L861]              int tmp___2 ;
[L864]              splverifierCounter = 0
[L866]  COND TRUE   1
[L868]  COND TRUE   splverifierCounter < 4
[L874]              tmp = __VERIFIER_nondet_int()
[L876]  COND TRUE   \read(tmp)
[L878]  CALL        waterRise()
[L476]  COND TRUE   waterLevel < 2
[L477]              waterLevel = waterLevel + 1
[L878]  RET         waterRise()
[L884]              tmp___0 = __VERIFIER_nondet_int()
[L886]  COND FALSE  !(\read(tmp___0))
[L894]              tmp___2 = __VERIFIER_nondet_int()
[L896]  COND TRUE   \read(tmp___2)
[L909]  CALL        timeShift()
[L693]  COND FALSE  !(\read(pumpRunning))
[L700]  COND TRUE   \read(systemActive)
[L702]  CALL        processEnvironment()
[L722]              int tmp ;
[L725]  COND FALSE  !(\read(pumpRunning))
[L740]  FCALL       processEnvironment__wrappee__base()
[L702]  RET         processEnvironment()
[L708]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L497]              int retValue_acc ;
[L500]              retValue_acc = methaneLevelCritical
[L501]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L529]              int retValue_acc ;
[L532]              retValue_acc = waterLevel
[L533]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L792]              int retValue_acc ;
[L795]              retValue_acc = pumpRunning
[L796]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 455 SDtfs, 819 SDslu, 748 SDs, 0 SdLazy, 1568 SolverSat, 257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred 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, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140093 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...