/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-15 01:43:47,589 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-15 01:43:47,593 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-15 01:43:47,640 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-15 01:43:47,640 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-15 01:43:47,649 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-15 01:43:47,651 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-15 01:43:47,654 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-15 01:43:47,657 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-15 01:43:47,660 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-15 01:43:47,661 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-15 01:43:47,662 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-15 01:43:47,663 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-15 01:43:47,666 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-15 01:43:47,668 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-15 01:43:47,670 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-15 01:43:47,671 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-15 01:43:47,672 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-15 01:43:47,674 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-15 01:43:47,682 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-15 01:43:47,684 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-15 01:43:47,685 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-15 01:43:47,686 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-15 01:43:47,686 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-15 01:43:47,691 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-15 01:43:47,691 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-15 01:43:47,691 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-15 01:43:47,694 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-15 01:43:47,695 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-15 01:43:47,696 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-15 01:43:47,696 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-15 01:43:47,697 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-15 01:43:47,704 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-15 01:43:47,704 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-15 01:43:47,705 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-15 01:43:47,705 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-15 01:43:47,706 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-15 01:43:47,706 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-15 01:43:47,706 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-15 01:43:47,707 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-15 01:43:47,708 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-15 01:43:47,709 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
[2020-10-15 01:43:47,730 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-15 01:43:47,730 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-15 01:43:47,731 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-15 01:43:47,731 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-15 01:43:47,731 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-15 01:43:47,732 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-15 01:43:47,732 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-15 01:43:47,732 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-15 01:43:47,732 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-15 01:43:47,733 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-15 01:43:47,734 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-15 01:43:47,734 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-15 01:43:47,734 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-15 01:43:47,734 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-15 01:43:47,734 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-15 01:43:47,735 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-15 01:43:47,735 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-15 01:43:47,735 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-15 01:43:47,735 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-15 01:43:47,735 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-15 01:43:47,736 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-15 01:43:47,736 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-15 01:43:47,736 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-15 01:43:47,736 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-15 01:43:47,736 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 -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
[2020-10-15 01:43:48,045 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-15 01:43:48,058 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-15 01:43:48,062 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-15 01:43:48,063 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-15 01:43:48,064 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-15 01:43:48,065 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c
[2020-10-15 01:43:48,129 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d530ae103/403e0d00ad584824a7fa9bc4bada24dc/FLAGc553a7859
[2020-10-15 01:43:48,623 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-15 01:43:48,624 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c
[2020-10-15 01:43:48,639 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d530ae103/403e0d00ad584824a7fa9bc4bada24dc/FLAGc553a7859
[2020-10-15 01:43:48,974 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d530ae103/403e0d00ad584824a7fa9bc4bada24dc
[2020-10-15 01:43:48,982 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-15 01:43:48,984 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-15 01:43:48,985 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-15 01:43:48,985 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-15 01:43:48,989 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-15 01:43:48,990 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:48" (1/1) ...
[2020-10-15 01:43:48,993 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f750b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:48, skipping insertion in model container
[2020-10-15 01:43:48,994 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:48" (1/1) ...
[2020-10-15 01:43:49,002 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-15 01:43:49,051 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-15 01:43:49,482 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:43:49,497 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-15 01:43:49,608 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-15 01:43:49,651 INFO  L208         MainTranslator]: Completed translation
[2020-10-15 01:43:49,651 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49 WrapperNode
[2020-10-15 01:43:49,651 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-15 01:43:49,652 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-15 01:43:49,652 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-15 01:43:49,653 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-15 01:43:49,667 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,668 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,687 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,687 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,721 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,732 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,738 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
[2020-10-15 01:43:49,746 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-15 01:43:49,747 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-15 01:43:49,747 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-15 01:43:49,747 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-15 01:43:49,748 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-15 01:43:49,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-15 01:43:49,818 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-15 01:43:49,819 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-15 01:43:49,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-15 01:43:49,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-15 01:43:49,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-15 01:43:49,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:43:49,823 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-15 01:43:49,824 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-15 01:43:49,825 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-15 01:43:49,826 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-15 01:43:49,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-15 01:43:49,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-15 01:43:49,827 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-15 01:43:49,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-15 01:43:49,827 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-15 01:43:49,828 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-15 01:43:49,829 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-15 01:43:49,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-15 01:43:49,831 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-15 01:43:50,887 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-15 01:43:50,887 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-15 01:43:50,895 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:50 BoogieIcfgContainer
[2020-10-15 01:43:50,895 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-15 01:43:50,897 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-15 01:43:50,897 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-15 01:43:50,901 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-15 01:43:50,902 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:43:48" (1/3) ...
[2020-10-15 01:43:50,903 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fb1890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:50, skipping insertion in model container
[2020-10-15 01:43:50,903 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:49" (2/3) ...
[2020-10-15 01:43:50,904 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fb1890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:50, skipping insertion in model container
[2020-10-15 01:43:50,904 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:50" (3/3) ...
[2020-10-15 01:43:50,906 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c
[2020-10-15 01:43:50,917 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-15 01:43:50,929 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-15 01:43:50,944 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-15 01:43:50,975 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-15 01:43:50,975 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-15 01:43:50,976 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-15 01:43:50,976 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-15 01:43:50,976 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-15 01:43:50,976 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-15 01:43:50,976 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-15 01:43:50,976 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-15 01:43:51,010 INFO  L276                IsEmpty]: Start isEmpty. Operand 178 states.
[2020-10-15 01:43:51,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-15 01:43:51,029 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:43:51,031 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]
[2020-10-15 01:43:51,031 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:43:51,036 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:43:51,036 INFO  L82        PathProgramCache]: Analyzing trace with hash -899623382, now seen corresponding path program 1 times
[2020-10-15 01:43:51,043 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:43:51,044 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147389787]
[2020-10-15 01:43:51,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:43:51,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:51,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:51,535 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:52,370 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:53,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:53,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-15 01:43:53,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-15 01:43:53,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2309
[2020-10-15 01:43:53,655 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:53,655 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:53,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-15 01:43:53,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:53,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-15 01:43:53,656 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-10-15 01:43:54,055 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:43:54,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:43:54,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,098 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,167 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,167 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:54,168 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,168 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-10-15 01:43:54,168 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,168 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:43:54,169 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,194 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:43:54,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,196 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,197 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:54,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,198 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:54,198 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,199 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:54,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,201 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:43:54,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,203 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,205 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,205 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:54,205 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,205 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:54,206 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,206 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,207 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:54,207 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:43:54,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:54,218 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,218 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-15 01:43:54,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,219 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:43:54,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,222 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:43:54,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,224 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,226 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,226 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:54,227 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,227 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:54,227 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,227 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:54,228 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-15 01:43:54,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,234 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,235 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:54,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:54,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,236 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:54,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:43:54,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-15 01:43:54,239 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,245 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,245 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:54,245 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,245 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-15 01:43:54,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,246 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-15 01:43:54,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:54,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:43:54,247 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,261 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-15 01:43:54,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:54,264 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:54,265 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:54,265 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:54,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:54,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:54,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:54,267 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:54,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:43:54,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:54,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:43:54,268 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:54,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:43:54,282 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147389787]
[2020-10-15 01:43:54,284 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:43:54,285 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-10-15 01:43:54,286 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664026738]
[2020-10-15 01:43:54,291 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-15 01:43:54,292 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:43:54,307 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-15 01:43:54,308 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:43:54,311 INFO  L87              Difference]: Start difference. First operand 178 states. Second operand 7 states.
[2020-10-15 01:43:54,854 WARN  L193               SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:43:56,046 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:43:56,447 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:43:56,730 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-15 01:43:57,013 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:43:57,490 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-15 01:43:58,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:43:58,756 INFO  L93              Difference]: Finished difference Result 442 states and 603 transitions.
[2020-10-15 01:43:58,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-15 01:43:58,763 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 52
[2020-10-15 01:43:58,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:43:58,781 INFO  L225             Difference]: With dead ends: 442
[2020-10-15 01:43:58,781 INFO  L226             Difference]: Without dead ends: 285
[2020-10-15 01:43:58,787 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2020-10-15 01:43:58,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2020-10-15 01:43:58,915 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 246.
[2020-10-15 01:43:58,917 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 246 states.
[2020-10-15 01:43:58,920 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions.
[2020-10-15 01:43:58,922 INFO  L78                 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 52
[2020-10-15 01:43:58,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:43:58,923 INFO  L479      AbstractCegarLoop]: Abstraction has 246 states and 304 transitions.
[2020-10-15 01:43:58,923 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-15 01:43:58,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions.
[2020-10-15 01:43:58,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-10-15 01:43:58,930 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:43:58,930 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]
[2020-10-15 01:43:58,931 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-15 01:43:58,931 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:43:58,931 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:43:58,932 INFO  L82        PathProgramCache]: Analyzing trace with hash -1993181839, now seen corresponding path program 1 times
[2020-10-15 01:43:58,932 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:43:58,932 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140541039]
[2020-10-15 01:43:58,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:43:58,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:58,989 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,502 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,502 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-10-15 01:43:59,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 536
[2020-10-15 01:43:59,503 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,503 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-15 01:43:59,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:59,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-10-15 01:43:59,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,755 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-15 01:43:59,756 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-15 01:43:59,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,793 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,881 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,881 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,882 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,882 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-10-15 01:43:59,882 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,883 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,883 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,883 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-15 01:43:59,884 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,913 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-15 01:43:59,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,915 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,917 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,917 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:59,917 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,917 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:59,918 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,918 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:59,919 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-15 01:43:59,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,923 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,924 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:59,924 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,924 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:43:59,924 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,924 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:59,925 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-15 01:43:59,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,931 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,931 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,931 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:59,932 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,932 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:43:59,933 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,934 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-15 01:43:59,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,936 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,937 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,938 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-15 01:43:59,938 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,938 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:43:59,938 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,939 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-15 01:43:59,939 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,947 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-15 01:43:59,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,952 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,953 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-15 01:43:59,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,953 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-15 01:43:59,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-15 01:43:59,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-15 01:43:59,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,956 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-10-15 01:43:59,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,959 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,959 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,959 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,960 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:43:59,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,960 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:43:59,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:59,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:43:59,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,962 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2020-10-15 01:43:59,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,964 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,965 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,965 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,966 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,966 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:43:59,966 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,966 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:43:59,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:59,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:43:59,967 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,968 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2020-10-15 01:43:59,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-15 01:43:59,970 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-15 01:43:59,971 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-15 01:43:59,971 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-15 01:43:59,971 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-15 01:43:59,972 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-15 01:43:59,972 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-15 01:43:59,972 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-15 01:43:59,972 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-15 01:43:59,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-15 01:43:59,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-15 01:43:59,973 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-15 01:43:59,982 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-15 01:43:59,983 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140541039]
[2020-10-15 01:43:59,983 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-15 01:43:59,984 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-15 01:43:59,984 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678616326]
[2020-10-15 01:43:59,986 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-15 01:43:59,986 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-15 01:43:59,986 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-15 01:43:59,987 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-15 01:43:59,987 INFO  L87              Difference]: Start difference. First operand 246 states and 304 transitions. Second operand 5 states.
[2020-10-15 01:44:00,269 WARN  L193               SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-15 01:44:02,413 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-15 01:44:02,413 INFO  L93              Difference]: Finished difference Result 760 states and 999 transitions.
[2020-10-15 01:44:02,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-15 01:44:02,414 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 61
[2020-10-15 01:44:02,414 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-15 01:44:02,422 INFO  L225             Difference]: With dead ends: 760
[2020-10-15 01:44:02,422 INFO  L226             Difference]: Without dead ends: 538
[2020-10-15 01:44:02,425 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-15 01:44:02,427 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 538 states.
[2020-10-15 01:44:02,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 451.
[2020-10-15 01:44:02,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 451 states.
[2020-10-15 01:44:02,568 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 563 transitions.
[2020-10-15 01:44:02,568 INFO  L78                 Accepts]: Start accepts. Automaton has 451 states and 563 transitions. Word has length 61
[2020-10-15 01:44:02,569 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-15 01:44:02,569 INFO  L479      AbstractCegarLoop]: Abstraction has 451 states and 563 transitions.
[2020-10-15 01:44:02,569 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-15 01:44:02,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 451 states and 563 transitions.
[2020-10-15 01:44:02,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-15 01:44:02,575 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-15 01:44:02,575 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]
[2020-10-15 01:44:02,575 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-15 01:44:02,575 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-15 01:44:02,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-15 01:44:02,576 INFO  L82        PathProgramCache]: Analyzing trace with hash 1597316302, now seen corresponding path program 1 times
[2020-10-15 01:44:02,576 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-15 01:44:02,576 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247375940]
[2020-10-15 01:44:02,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-15 01:44:02,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-15 01:44:02,622 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-15 01:44:02,622 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-15 01:44:02,627 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-15 01:44:02,650 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:44:02 BoogieIcfgContainer
[2020-10-15 01:44:02,650 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-15 01:44:02,652 INFO  L168              Benchmark]: Toolchain (without parser) took 13668.13 ms. Allocated memory was 148.4 MB in the beginning and 467.7 MB in the end (delta: 319.3 MB). Free memory was 103.1 MB in the beginning and 258.6 MB in the end (delta: -155.5 MB). Peak memory consumption was 163.8 MB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,653 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,654 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 666.97 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 171.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,655 INFO  L168              Benchmark]: Boogie Preprocessor took 93.98 ms. Allocated memory is still 205.0 MB. Free memory was 171.9 MB in the beginning and 167.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,656 INFO  L168              Benchmark]: RCFGBuilder took 1148.82 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 167.2 MB in the beginning and 187.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,657 INFO  L168              Benchmark]: TraceAbstraction took 11753.70 ms. Allocated memory was 233.3 MB in the beginning and 467.7 MB in the end (delta: 234.4 MB). Free memory was 187.9 MB in the beginning and 258.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB.
[2020-10-15 01:44:02,661 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 666.97 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 171.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 93.98 ms. Allocated memory is still 205.0 MB. Free memory was 171.9 MB in the beginning and 167.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1148.82 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 167.2 MB in the beginning and 187.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 11753.70 ms. Allocated memory was 233.3 MB in the beginning and 467.7 MB in the end (delta: 234.4 MB). Free memory was 187.9 MB in the beginning and 258.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L85]               int waterLevel  =    1;
[L86]               int methaneLevelCritical  =    0;
[L185]              int pumpRunning  =    0;
[L186]              int systemActive  =    1;
[L625]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L822]              int cleanupTimeShifts  =    4;
[L895]              int retValue_acc ;
[L896]              int tmp ;
[L900]  FCALL       select_helpers()
[L901]  FCALL       select_features()
[L902]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L902]  RET, EXPR   valid_product()
[L902]              tmp = valid_product()
[L904]  COND TRUE   \read(tmp)
[L906]  FCALL       setup()
[L907]  CALL        runTest()
[L889]  CALL        test()
[L381]              int splverifierCounter ;
[L382]              int tmp ;
[L383]              int tmp___0 ;
[L384]              int tmp___1 ;
[L385]              int tmp___2 ;
[L388]              splverifierCounter = 0
[L390]  COND TRUE   1
[L392]  COND TRUE   splverifierCounter < 4
[L398]              tmp = __VERIFIER_nondet_int()
[L400]  COND TRUE   \read(tmp)
[L402]  CALL        waterRise()
[L103]  COND TRUE   waterLevel < 2
[L104]              waterLevel = waterLevel + 1
[L402]  RET         waterRise()
[L408]              tmp___0 = __VERIFIER_nondet_int()
[L410]  COND FALSE  !(\read(tmp___0))
[L418]              tmp___2 = __VERIFIER_nondet_int()
[L420]  COND FALSE  !(\read(tmp___2))
[L424]              tmp___1 = __VERIFIER_nondet_int()
[L426]  COND TRUE   \read(tmp___1)
[L428]  CALL        stopSystem()
[L367]  COND FALSE  !(\read(pumpRunning))
[L374]              systemActive = 0
[L428]  RET         stopSystem()
[L435]  CALL        timeShift()
[L193]  COND FALSE  !(\read(pumpRunning))
[L200]  COND FALSE  !(\read(systemActive))
[L208]  CALL        __utac_acc__Specification3_spec__1()
[L919]              int tmp ;
[L920]              int tmp___0 ;
[L921]              int tmp___1 ;
[L925]  CALL, EXPR  isMethaneLevelCritical()
[L124]              int retValue_acc ;
[L127]              retValue_acc = methaneLevelCritical
[L128]              return (retValue_acc);
[L925]  RET, EXPR   isMethaneLevelCritical()
[L925]              tmp = isMethaneLevelCritical()
[L927]  COND FALSE  !(\read(tmp))
[L931]  CALL, EXPR  getWaterLevel()
[L156]              int retValue_acc ;
[L159]              retValue_acc = waterLevel
[L160]              return (retValue_acc);
[L931]  RET, EXPR   getWaterLevel()
[L931]              tmp___0 = getWaterLevel()
[L933]  COND TRUE   tmp___0 == 2
[L935]  CALL, EXPR  isPumpRunning()
[L300]              int retValue_acc ;
[L303]              retValue_acc = pumpRunning
[L304]              return (retValue_acc);
[L935]  RET, EXPR   isPumpRunning()
[L935]              tmp___1 = isPumpRunning()
[L937]  COND FALSE  !(\read(tmp___1))
[L941]  CALL        __automaton_fail()
[L451]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 573 SDslu, 269 SDs, 0 SdLazy, 1171 SolverSat, 329 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred 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, 126 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 32643 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...