/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=BIGGEST --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
[2020-09-24 20:14:14,477 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:14:14,482 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:14:14,530 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:14:14,531 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:14:14,543 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:14:14,545 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:14:14,549 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:14:14,550 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:14:14,555 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:14:14,556 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:14:14,558 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:14:14,558 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:14:14,561 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:14:14,565 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:14:14,567 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:14:14,569 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:14:14,570 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:14:14,572 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:14:14,583 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:14:14,585 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:14:14,586 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:14:14,588 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:14:14,588 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:14:14,591 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:14:14,592 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:14:14,592 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:14:14,595 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:14:14,596 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:14:14,598 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:14:14,598 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:14:14,599 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:14:14,600 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:14:14,601 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:14:14,603 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:14:14,603 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:14:14,604 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:14:14,604 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:14:14,604 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:14:14,605 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:14:14,607 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:14:14,608 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
[2020-09-24 20:14:14,659 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:14:14,659 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:14:14,662 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:14:14,662 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:14:14,662 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:14:14,663 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:14:14,663 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:14:14,663 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:14:14,664 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:14:14,664 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:14:14,665 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:14:14,665 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:14:14,665 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:14:14,666 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:14:14,666 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:14:14,666 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:14:14,667 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:14:14,667 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:14:14,667 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:14:14,667 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:14:14,667 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:14:14,668 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:14:14,668 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:14:14,668 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:14:14,668 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:14:14,669 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:14:14,669 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:14:14,669 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:14:14,669 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:14:14,669 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:14:15,126 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:14:15,153 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:14:15,158 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:14:15,160 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:14:15,161 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:14:15,162 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-24 20:14:15,246 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e37dd1d22/08d9a24ca2c141439fac0847278f39b7/FLAG2f7cc296f
[2020-09-24 20:14:15,866 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:14:15,867 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-24 20:14:15,889 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e37dd1d22/08d9a24ca2c141439fac0847278f39b7/FLAG2f7cc296f
[2020-09-24 20:14:16,113 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e37dd1d22/08d9a24ca2c141439fac0847278f39b7
[2020-09-24 20:14:16,128 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:14:16,135 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:14:16,136 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:14:16,136 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:14:16,141 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:14:16,142 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,148 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16, skipping insertion in model container
[2020-09-24 20:14:16,148 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,157 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:14:16,235 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:14:16,633 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:14:16,750 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:14:16,863 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:14:16,903 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:14:16,904 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16 WrapperNode
[2020-09-24 20:14:16,904 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:14:16,905 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:14:16,905 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:14:16,905 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:14:16,919 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,920 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,941 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,942 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,978 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,991 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:16,996 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (1/1) ...
[2020-09-24 20:14:17,004 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:14:17,005 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:14:17,005 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:14:17,005 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:14:17,006 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (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
[2020-09-24 20:14:17,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:14:17,104 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:14:17,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:14:17,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:14:17,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:14:17,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:14:17,105 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:14:17,106 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:14:17,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:14:17,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:14:17,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:14:17,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:14:17,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:14:17,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:14:17,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:14:17,109 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 20:14:17,109 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 20:14:17,109 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:14:17,109 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:14:17,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:14:17,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:14:17,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:14:17,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:14:17,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:14:17,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:14:17,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:14:17,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:14:17,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:14:17,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:14:17,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:14:17,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 20:14:17,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 20:14:17,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:14:17,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 20:14:17,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:14:17,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:14:17,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:14:17,115 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:14:17,116 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:14:17,116 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 20:14:17,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 20:14:17,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 20:14:17,118 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:14:17,118 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:14:17,118 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:14:17,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:14:17,120 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:14:17,120 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:14:17,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:14:17,120 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:14:17,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:14:17,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:14:17,121 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:14:17,121 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:14:17,122 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:14:17,123 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:14:17,124 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:14:17,124 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 20:14:17,124 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 20:14:17,125 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:14:17,126 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:14:17,127 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:14:17,127 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:14:17,127 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:14:17,127 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:14:17,127 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:14:17,128 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:14:17,129 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:14:17,130 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:14:17,131 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:14:18,343 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:14:18,343 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:14:18,353 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:18 BoogieIcfgContainer
[2020-09-24 20:14:18,354 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:14:18,356 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:14:18,356 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:14:18,360 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:14:18,360 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:14:16" (1/3) ...
[2020-09-24 20:14:18,361 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30770043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:18, skipping insertion in model container
[2020-09-24 20:14:18,362 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:16" (2/3) ...
[2020-09-24 20:14:18,362 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30770043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:18, skipping insertion in model container
[2020-09-24 20:14:18,363 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:18" (3/3) ...
[2020-09-24 20:14:18,365 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c
[2020-09-24 20:14:18,377 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:14:18,393 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:14:18,417 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:14:18,460 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:14:18,460 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:14:18,460 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:14:18,461 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:14:18,461 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:14:18,462 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:14:18,462 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:14:18,463 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:14:18,503 INFO  L276                IsEmpty]: Start isEmpty. Operand 346 states.
[2020-09-24 20:14:18,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:14:18,541 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:18,544 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]
[2020-09-24 20:14:18,545 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:18,554 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:18,558 INFO  L82        PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times
[2020-09-24 20:14:18,569 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:18,571 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976966551]
[2020-09-24 20:14:18,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:18,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:19,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:19,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:20,653 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:23,937 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:23,938 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:14:23,938 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:14:23,938 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-24 20:14:23,942 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:23,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:14:23,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 20:14:23,952 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 20:14:23,952 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 13
[2020-09-24 20:14:24,452 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:14:24,455 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:14:24,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,789 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:14:24,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 295
[2020-09-24 20:14:24,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 20:14:24,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,926 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:14:24,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,931 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,935 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,935 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:24,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,936 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:14:24,936 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:24,937 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:14:24,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,945 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,945 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:24,945 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,946 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:14:24,946 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:24,947 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,948 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:14:24,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,961 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,961 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:24,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:14:24,962 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:24,963 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,965 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:14:24,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,968 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,973 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:24,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:14:24,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:24,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,976 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:14:24,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:24,985 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:24,985 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:24,986 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:24,988 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:14:24,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:24,992 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:25,004 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:25,004 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:25,004 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:25,004 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 20:14:25,005 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:25,005 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:14:25,005 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:25,005 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:25,006 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:25,036 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:14:25,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:25,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:25,043 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:25,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:25,044 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:25,044 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:14:25,045 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:25,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:25,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:25,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:25,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:25,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:14:25,107 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976966551]
[2020-09-24 20:14:25,109 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:14:25,109 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:14:25,110 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94794525]
[2020-09-24 20:14:25,120 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:14:25,120 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:14:25,138 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:14:25,139 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:14:25,142 INFO  L87              Difference]: Start difference. First operand 346 states. Second operand 8 states.
[2020-09-24 20:14:25,732 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:27,499 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:27,885 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:14:28,294 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:28,732 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:14:29,084 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:29,824 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:30,171 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:14:31,996 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:14:31,996 INFO  L93              Difference]: Finished difference Result 760 states and 942 transitions.
[2020-09-24 20:14:31,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:14:31,998 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:14:31,999 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:14:32,032 INFO  L225             Difference]: With dead ends: 760
[2020-09-24 20:14:32,033 INFO  L226             Difference]: Without dead ends: 508
[2020-09-24 20:14:32,040 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:14:32,060 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 508 states.
[2020-09-24 20:14:32,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454.
[2020-09-24 20:14:32,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 454 states.
[2020-09-24 20:14:32,190 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 510 transitions.
[2020-09-24 20:14:32,193 INFO  L78                 Accepts]: Start accepts. Automaton has 454 states and 510 transitions. Word has length 153
[2020-09-24 20:14:32,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:14:32,194 INFO  L479      AbstractCegarLoop]: Abstraction has 454 states and 510 transitions.
[2020-09-24 20:14:32,194 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:14:32,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 454 states and 510 transitions.
[2020-09-24 20:14:32,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 20:14:32,201 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:32,201 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]
[2020-09-24 20:14:32,201 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:14:32,202 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:32,202 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:32,202 INFO  L82        PathProgramCache]: Analyzing trace with hash 1670043451, now seen corresponding path program 1 times
[2020-09-24 20:14:32,203 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:32,203 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474737753]
[2020-09-24 20:14:32,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:32,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:32,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:33,394 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:33,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 20:14:33,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:33,395 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1122
[2020-09-24 20:14:33,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:33,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 20:14:33,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 20:14:33,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:14:33,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:33,741 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:14:33,742 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:14:33,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:33,815 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,074 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,074 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:14:34,075 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,075 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 296
[2020-09-24 20:14:34,075 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 20:14:34,076 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:34,130 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:14:34,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,138 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,139 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:34,139 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,139 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:14:34,139 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:34,140 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:34,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:14:34,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,146 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,146 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:34,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,147 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:14:34,147 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,147 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:34,148 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:34,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:14:34,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:34,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,165 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:14:34,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:14:34,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:34,169 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:14:34,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,175 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,176 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:14:34,176 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,176 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:14:34,177 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:14:34,178 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:34,191 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:14:34,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,194 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,200 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,201 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:14:34,201 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,201 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:14:34,202 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:14:34,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:14:34,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 20:14:34,204 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:34,206 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 20:14:34,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,209 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,211 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,211 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:34,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,212 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:14:34,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:34,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:34,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:34,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:34,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 20:14:34,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:34,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:14:34,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:34,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:34,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:34,222 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:14:34,224 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 20:14:34,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:14:34,226 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:14:34,228 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:14:34,228 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:14:34,228 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:14:34,229 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:14:34,229 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:14:34,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:14:34,230 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:14:34,230 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:14:34,230 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:14:34,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:14:34,282 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474737753]
[2020-09-24 20:14:34,282 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:14:34,282 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 20:14:34,283 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548747352]
[2020-09-24 20:14:34,285 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 20:14:34,285 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:14:34,285 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 20:14:34,285 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 20:14:34,286 INFO  L87              Difference]: Start difference. First operand 454 states and 510 transitions. Second operand 5 states.
[2020-09-24 20:14:34,751 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:14:37,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:14:37,669 INFO  L93              Difference]: Finished difference Result 1288 states and 1555 transitions.
[2020-09-24 20:14:37,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 20:14:37,670 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-24 20:14:37,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:14:37,679 INFO  L225             Difference]: With dead ends: 1288
[2020-09-24 20:14:37,679 INFO  L226             Difference]: Without dead ends: 944
[2020-09-24 20:14:37,682 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 20:14:37,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 944 states.
[2020-09-24 20:14:37,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 789.
[2020-09-24 20:14:37,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 789 states.
[2020-09-24 20:14:37,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 902 transitions.
[2020-09-24 20:14:37,815 INFO  L78                 Accepts]: Start accepts. Automaton has 789 states and 902 transitions. Word has length 168
[2020-09-24 20:14:37,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:14:37,816 INFO  L479      AbstractCegarLoop]: Abstraction has 789 states and 902 transitions.
[2020-09-24 20:14:37,816 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 20:14:37,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 789 states and 902 transitions.
[2020-09-24 20:14:37,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 20:14:37,826 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:14:37,827 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]
[2020-09-24 20:14:37,827 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:14:37,827 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:14:37,827 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:14:37,828 INFO  L82        PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times
[2020-09-24 20:14:37,828 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:14:37,828 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623240316]
[2020-09-24 20:14:37,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:14:37,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:14:37,898 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:14:37,898 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:14:37,904 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:14:37,930 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:14:37 BoogieIcfgContainer
[2020-09-24 20:14:37,931 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:14:37,933 INFO  L168              Benchmark]: Toolchain (without parser) took 21802.75 ms. Allocated memory was 140.0 MB in the beginning and 531.6 MB in the end (delta: 391.6 MB). Free memory was 102.5 MB in the beginning and 405.5 MB in the end (delta: -302.9 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,934 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,935 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 768.87 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 172.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,935 INFO  L168              Benchmark]: Boogie Preprocessor took 99.37 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,936 INFO  L168              Benchmark]: RCFGBuilder took 1349.25 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 174.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,937 INFO  L168              Benchmark]: TraceAbstraction took 19575.03 ms. Allocated memory was 237.0 MB in the beginning and 531.6 MB in the end (delta: 294.6 MB). Free memory was 172.5 MB in the beginning and 405.5 MB in the end (delta: -232.9 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:14:37,941 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 768.87 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 172.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 99.37 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1349.25 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 174.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19575.03 ms. Allocated memory was 237.0 MB in the beginning and 531.6 MB in the end (delta: 294.6 MB). Free memory was 172.5 MB in the beginning and 405.5 MB in the end (delta: -232.9 MB). Peak memory consumption was 61.7 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: 19.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 624 SDtfs, 1078 SDslu, 762 SDs, 0 SdLazy, 2134 SolverSat, 365 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.1s 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, 8.0s 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...