/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=WIDEST --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_product59.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:00:01,614 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:00:01,618 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:00:01,643 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:00:01,644 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:00:01,645 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:00:01,646 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:00:01,648 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:00:01,650 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:00:01,651 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:00:01,652 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:00:01,653 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:00:01,653 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:00:01,655 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:00:01,656 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:00:01,657 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:00:01,658 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:00:01,659 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:00:01,660 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:00:01,662 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:00:01,664 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:00:01,665 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:00:01,666 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:00:01,667 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:00:01,669 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:00:01,669 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:00:01,670 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:00:01,671 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:00:01,671 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:00:01,672 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:00:01,672 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:00:01,673 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:00:01,674 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:00:01,675 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:00:01,676 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:00:01,676 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:00:01,677 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:00:01,677 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:00:01,677 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:00:01,678 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:00:01,679 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:00:01,680 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 03:00:01,706 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 03:00:01,706 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:00:01,708 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:00:01,708 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 03:00:01,708 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 03:00:01,708 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:00:01,709 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 03:00:01,709 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 03:00:01,709 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 03:00:01,709 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 03:00:01,709 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:00:01,710 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:00:01,710 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:00:01,710 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 03:00:01,710 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 03:00:01,711 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 03:00:01,711 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:00:01,711 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:00:01,711 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 03:00:01,711 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 03:00:01,712 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 03:00:01,712 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:00:01,712 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:00:01,712 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:00:01,713 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:00:01,713 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 03:00:01,713 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:00:01,713 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:00:01,713 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 03:00:01,714 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 03:00:02,162 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:00:02,190 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:00:02,195 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:00:02,196 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 03:00:02,197 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 03:00:02,198 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-25 03:00:02,278 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3535c1e8e/101a2be704b74116a7b5dfea71b919cb/FLAG74890d159
[2020-09-25 03:00:03,005 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 03:00:03,006 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-25 03:00:03,022 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3535c1e8e/101a2be704b74116a7b5dfea71b919cb/FLAG74890d159
[2020-09-25 03:00:03,193 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3535c1e8e/101a2be704b74116a7b5dfea71b919cb
[2020-09-25 03:00:03,212 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:00:03,219 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:00:03,222 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:00:03,222 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:00:03,227 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:00:03,228 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:03,234 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c42c436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03, skipping insertion in model container
[2020-09-25 03:00:03,234 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:03,245 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 03:00:03,318 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:00:03,789 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:00:03,805 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 03:00:03,939 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:00:03,984 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 03:00:03,984 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03 WrapperNode
[2020-09-25 03:00:03,984 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:00:03,985 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:00:03,985 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:00:03,986 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:00:04,002 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,003 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,024 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,025 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,059 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,072 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,081 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (1/1) ...
[2020-09-25 03:00:04,094 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:00:04,095 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:00:04,095 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:00:04,095 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:00:04,101 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (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 03:00:04,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:00:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:00:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 03:00:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 03:00:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 03:00:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 03:00:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 03:00:04,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 03:00:04,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 03:00:04,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 03:00:04,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 03:00:04,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 03:00:04,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 03:00:04,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 03:00:04,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 03:00:04,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 03:00:04,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:00:04,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 03:00:04,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 03:00:04,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 03:00:04,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 03:00:04,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 03:00:04,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 03:00:04,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 03:00:04,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 03:00:04,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 03:00:04,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 03:00:04,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 03:00:04,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 03:00:04,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 03:00:04,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 03:00:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 03:00:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:00:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 03:00:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 03:00:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 03:00:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 03:00:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 03:00:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 03:00:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 03:00:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 03:00:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 03:00:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 03:00:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 03:00:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 03:00:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 03:00:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 03:00:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 03:00:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:00:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 03:00:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:00:05,409 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:00:05,409 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 03:00:05,417 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:05 BoogieIcfgContainer
[2020-09-25 03:00:05,418 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:00:05,419 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:00:05,419 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:00:05,423 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:00:05,424 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:00:03" (1/3) ...
[2020-09-25 03:00:05,425 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274ebc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:05, skipping insertion in model container
[2020-09-25 03:00:05,425 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:03" (2/3) ...
[2020-09-25 03:00:05,425 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274ebc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:05, skipping insertion in model container
[2020-09-25 03:00:05,426 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:05" (3/3) ...
[2020-09-25 03:00:05,429 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c
[2020-09-25 03:00:05,443 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:00:05,459 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:00:05,488 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:00:05,527 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:00:05,527 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 03:00:05,528 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:00:05,528 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:00:05,528 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:00:05,528 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 03:00:05,528 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:00:05,529 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:00:05,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 346 states.
[2020-09-25 03:00:05,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 03:00:05,584 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:00:05,585 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 03:00:05,586 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:00:05,594 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:00:05,595 INFO  L82        PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times
[2020-09-25 03:00:05,607 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:00:05,608 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552900063]
[2020-09-25 03:00:05,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:00:05,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:06,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:06,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:07,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:11,021 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:11,022 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 03:00:11,022 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 03:00:11,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5026
[2020-09-25 03:00:11,026 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:11,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 03:00:11,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 03:00:11,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 03:00:11,027 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 03:00:11,524 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 03:00:11,527 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:00:11,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:11,606 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:11,841 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:11,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 03:00:11,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:11,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 275
[2020-09-25 03:00:11,843 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:11,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:11,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:11,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 03:00:11,844 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:11,977 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 03:00:11,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:11,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:11,993 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:11,993 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:11,994 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:11,994 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 03:00:11,994 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:11,994 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:11,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:11,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:11,995 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:11,998 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 03:00:12,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,002 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,006 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:12,007 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 03:00:12,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:12,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:12,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:12,008 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:12,010 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 03:00:12,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,027 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:12,028 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 03:00:12,028 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:12,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:12,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 03:00:12,029 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:12,032 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 03:00:12,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,039 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,040 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:12,040 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,040 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 03:00:12,040 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:12,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:12,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:12,041 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:12,046 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 03:00:12,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,049 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,053 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,053 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:12,054 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,054 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 03:00:12,054 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:12,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:12,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 03:00:12,055 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:12,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 03:00:12,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,061 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,072 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,072 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:12,072 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,073 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 03:00:12,073 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 03:00:12,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:12,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 03:00:12,074 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:12,105 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 03:00:12,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:12,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:12,112 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:12,112 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:12,112 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:12,112 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 03:00:12,113 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:12,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:00:12,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 03:00:12,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:00:12,114 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:12,151 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 03:00:12,152 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552900063]
[2020-09-25 03:00:12,154 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:00:12,155 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 03:00:12,156 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639582364]
[2020-09-25 03:00:12,165 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 03:00:12,165 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:00:12,183 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 03:00:12,185 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 03:00:12,188 INFO  L87              Difference]: Start difference. First operand 346 states. Second operand 8 states.
[2020-09-25 03:00:12,795 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 03:00:14,467 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 03:00:14,849 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 03:00:15,223 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 03:00:15,652 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 03:00:16,055 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 03:00:16,799 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 03:00:17,140 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 03:00:18,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:00:18,945 INFO  L93              Difference]: Finished difference Result 760 states and 942 transitions.
[2020-09-25 03:00:18,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 03:00:18,948 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 03:00:18,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:00:18,970 INFO  L225             Difference]: With dead ends: 760
[2020-09-25 03:00:18,970 INFO  L226             Difference]: Without dead ends: 508
[2020-09-25 03:00:18,978 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 03:00:19,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 508 states.
[2020-09-25 03:00:19,137 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454.
[2020-09-25 03:00:19,139 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 454 states.
[2020-09-25 03:00:19,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 510 transitions.
[2020-09-25 03:00:19,146 INFO  L78                 Accepts]: Start accepts. Automaton has 454 states and 510 transitions. Word has length 153
[2020-09-25 03:00:19,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:00:19,147 INFO  L479      AbstractCegarLoop]: Abstraction has 454 states and 510 transitions.
[2020-09-25 03:00:19,148 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 03:00:19,148 INFO  L276                IsEmpty]: Start isEmpty. Operand 454 states and 510 transitions.
[2020-09-25 03:00:19,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 03:00:19,157 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:00:19,157 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:00:19,157 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:00:19,158 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:00:19,158 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:00:19,158 INFO  L82        PathProgramCache]: Analyzing trace with hash 1670043451, now seen corresponding path program 1 times
[2020-09-25 03:00:19,158 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:00:19,159 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973725202]
[2020-09-25 03:00:19,159 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:00:19,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:19,345 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:20,629 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:20,630 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 03:00:20,630 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:20,630 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1345
[2020-09-25 03:00:20,631 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:20,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 03:00:20,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 03:00:20,632 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 03:00:20,632 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:21,107 WARN  L193               SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 03:00:21,108 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:00:21,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,199 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,477 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,478 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 03:00:21,478 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,479 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 326
[2020-09-25 03:00:21,479 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 03:00:21,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:21,542 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 03:00:21,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,545 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:21,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,548 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 03:00:21,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:21,549 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,551 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 03:00:21,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,553 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,556 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,556 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:21,556 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,557 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 03:00:21,557 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,557 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,557 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:21,558 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 03:00:21,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,563 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:21,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 03:00:21,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 03:00:21,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:21,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 03:00:21,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,581 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:00:21,582 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,582 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 03:00:21,582 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 03:00:21,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:00:21,594 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 03:00:21,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,598 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,603 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,604 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 03:00:21,604 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,604 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 03:00:21,604 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:00:21,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:00:21,605 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:00:21,605 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 03:00:21,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,610 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,612 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,612 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:21,612 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,612 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 03:00:21,613 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:00:21,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 03:00:21,613 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:00:21,614 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,615 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 03:00:21,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,618 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,619 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,620 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:21,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,620 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 03:00:21,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:00:21,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 03:00:21,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:00:21,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,623 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 03:00:21,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:00:21,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:00:21,627 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:00:21,628 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:00:21,628 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:00:21,628 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 03:00:21,628 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:00:21,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:00:21,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 03:00:21,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:00:21,629 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:00:21,711 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 03:00:21,711 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973725202]
[2020-09-25 03:00:21,712 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:00:21,712 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 03:00:21,712 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526833181]
[2020-09-25 03:00:21,714 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 03:00:21,714 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:00:21,715 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 03:00:21,715 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 03:00:21,715 INFO  L87              Difference]: Start difference. First operand 454 states and 510 transitions. Second operand 5 states.
[2020-09-25 03:00:22,200 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 03:00:24,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:00:24,987 INFO  L93              Difference]: Finished difference Result 1288 states and 1555 transitions.
[2020-09-25 03:00:24,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 03:00:24,989 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 03:00:24,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:00:24,999 INFO  L225             Difference]: With dead ends: 1288
[2020-09-25 03:00:24,999 INFO  L226             Difference]: Without dead ends: 944
[2020-09-25 03:00:25,004 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 03:00:25,006 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 944 states.
[2020-09-25 03:00:25,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 789.
[2020-09-25 03:00:25,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 789 states.
[2020-09-25 03:00:25,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 902 transitions.
[2020-09-25 03:00:25,137 INFO  L78                 Accepts]: Start accepts. Automaton has 789 states and 902 transitions. Word has length 168
[2020-09-25 03:00:25,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:00:25,138 INFO  L479      AbstractCegarLoop]: Abstraction has 789 states and 902 transitions.
[2020-09-25 03:00:25,138 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 03:00:25,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 789 states and 902 transitions.
[2020-09-25 03:00:25,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 03:00:25,144 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:00:25,144 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:00:25,144 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:00:25,144 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:00:25,145 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:00:25,145 INFO  L82        PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times
[2020-09-25 03:00:25,145 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:00:25,145 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424176926]
[2020-09-25 03:00:25,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:00:25,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:00:25,223 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:00:25,223 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:00:25,229 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 03:00:25,257 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:00:25 BoogieIcfgContainer
[2020-09-25 03:00:25,258 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:00:25,260 INFO  L168              Benchmark]: Toolchain (without parser) took 22045.27 ms. Allocated memory was 138.9 MB in the beginning and 491.8 MB in the end (delta: 352.8 MB). Free memory was 100.6 MB in the beginning and 84.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 368.7 MB. Max. memory is 7.1 GB.
[2020-09-25 03:00:25,261 INFO  L168              Benchmark]: CDTParser took 0.31 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 03:00:25,262 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 763.33 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 165.5 MB in the end (delta: -65.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
[2020-09-25 03:00:25,263 INFO  L168              Benchmark]: Boogie Preprocessor took 109.20 ms. Allocated memory is still 201.9 MB. Free memory was 165.5 MB in the beginning and 160.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2020-09-25 03:00:25,264 INFO  L168              Benchmark]: RCFGBuilder took 1322.98 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 160.7 MB in the beginning and 165.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB.
[2020-09-25 03:00:25,265 INFO  L168              Benchmark]: TraceAbstraction took 19838.53 ms. Allocated memory was 233.8 MB in the beginning and 491.8 MB in the end (delta: 257.9 MB). Free memory was 165.9 MB in the beginning and 84.8 MB in the end (delta: 81.1 MB). Peak memory consumption was 339.1 MB. Max. memory is 7.1 GB.
[2020-09-25 03:00:25,269 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.31 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 763.33 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 165.5 MB in the end (delta: -65.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 109.20 ms. Allocated memory is still 201.9 MB. Free memory was 165.5 MB in the beginning and 160.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1322.98 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 160.7 MB in the beginning and 165.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19838.53 ms. Allocated memory was 233.8 MB in the beginning and 491.8 MB in the end (delta: 257.9 MB). Free memory was 165.9 MB in the beginning and 84.8 MB in the end (delta: 81.1 MB). Peak memory consumption was 339.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L414]              int waterLevel  =    1;
[L415]              int methaneLevelCritical  =    0;
[L517]              int cleanupTimeShifts  =    4;
[L769]              int pumpRunning  =    0;
[L770]              int systemActive  =    1;
[L596]              int retValue_acc ;
[L597]              int tmp ;
[L601]  FCALL       select_helpers()
[L602]  FCALL       select_features()
[L603]  CALL, EXPR  valid_product()
[L645]              int retValue_acc ;
[L648]              retValue_acc = 1
[L649]              return (retValue_acc);
[L603]  RET, EXPR   valid_product()
[L603]              tmp = valid_product()
[L605]  COND TRUE   \read(tmp)
[L607]  FCALL       setup()
[L608]  CALL        runTest()
[L587]  CALL        test()
[L701]              int splverifierCounter ;
[L702]              int tmp ;
[L703]              int tmp___0 ;
[L704]              int tmp___1 ;
[L705]              int tmp___2 ;
[L708]              splverifierCounter = 0
[L710]  COND TRUE   1
[L712]  COND TRUE   splverifierCounter < 4
[L718]              tmp = __VERIFIER_nondet_int()
[L720]  COND TRUE   \read(tmp)
[L722]  CALL        waterRise()
[L432]  COND TRUE   waterLevel < 2
[L433]              waterLevel = waterLevel + 1
[L722]  RET         waterRise()
[L728]              tmp___0 = __VERIFIER_nondet_int()
[L730]  COND FALSE  !(\read(tmp___0))
[L738]              tmp___2 = __VERIFIER_nondet_int()
[L740]  COND FALSE  !(\read(tmp___2))
[L744]              tmp___1 = __VERIFIER_nondet_int()
[L746]  COND TRUE   \read(tmp___1)
[L748]  CALL        stopSystem()
[L987]  COND FALSE  !(\read(pumpRunning))
[L994]              systemActive = 0
[L748]  RET         stopSystem()
[L755]  CALL        timeShift()
[L776]  COND FALSE  !(\read(pumpRunning))
[L783]  COND FALSE  !(\read(systemActive))
[L791]  CALL        __utac_acc__Specification3_spec__1()
[L657]              int tmp ;
[L658]              int tmp___0 ;
[L659]              int tmp___1 ;
[L663]  CALL, EXPR  isMethaneLevelCritical()
[L453]              int retValue_acc ;
[L456]              retValue_acc = methaneLevelCritical
[L457]              return (retValue_acc);
[L663]  RET, EXPR   isMethaneLevelCritical()
[L663]              tmp = isMethaneLevelCritical()
[L665]  COND FALSE  !(\read(tmp))
[L669]  CALL, EXPR  getWaterLevel()
[L485]              int retValue_acc ;
[L488]              retValue_acc = waterLevel
[L489]              return (retValue_acc);
[L669]  RET, EXPR   getWaterLevel()
[L669]              tmp___0 = getWaterLevel()
[L671]  COND TRUE   tmp___0 == 2
[L673]  CALL, EXPR  isPumpRunning()
[L901]              int retValue_acc ;
[L904]              retValue_acc = pumpRunning
[L905]              return (retValue_acc);
[L673]  RET, EXPR   isPumpRunning()
[L673]              tmp___1 = isPumpRunning()
[L675]  COND FALSE  !(\read(tmp___1))
[L679]  CALL        __automaton_fail()
[L694]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 622 SDtfs, 1078 SDslu, 760 SDs, 0 SdLazy, 2114 SolverSat, 369 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 209 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...