/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product30.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:49:17,677 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:49:17,681 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:49:17,728 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:49:17,728 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:49:17,738 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:49:17,741 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:49:17,745 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:49:17,748 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:49:17,751 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:49:17,752 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:49:17,753 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:49:17,753 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:49:17,757 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:49:17,760 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:49:17,762 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:49:17,764 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:49:17,765 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:49:17,766 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:49:17,774 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:49:17,777 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:49:17,778 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:49:17,779 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:49:17,780 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:49:17,784 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:49:17,784 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:49:17,785 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:49:17,787 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:49:17,788 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:49:17,789 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:49:17,790 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 09:49:17,791 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:49:17,792 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:49:17,794 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:49:17,794 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:49:17,795 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:49:17,795 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:49:17,795 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:49:17,796 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:49:17,798 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:49:17,799 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 09:49:17,845 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:49:17,845 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:49:17,847 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:49:17,848 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:49:17,848 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:49:17,848 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:49:17,849 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:49:17,849 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:49:17,849 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:49:17,849 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:49:17,850 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:49:17,851 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:49:17,851 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:49:17,851 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:49:17,851 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:49:17,852 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:49:17,852 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:49:17,852 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:49:17,852 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:49:17,852 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:49:17,853 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:49:17,853 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:17,853 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:49:17,853 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:49:17,853 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:49:17,854 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:49:17,854 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:49:17,854 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:49:17,854 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:49:17,854 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 09:49:18,298 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:49:18,321 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:49:18,326 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:49:18,328 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:49:18,328 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:49:18,329 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-25 09:49:18,414 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8be25c892/3532ba9f3eae483aa591acc9c82c9bf9/FLAGfb241d9fd
[2020-09-25 09:49:19,008 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:49:19,009 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-25 09:49:19,024 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8be25c892/3532ba9f3eae483aa591acc9c82c9bf9/FLAGfb241d9fd
[2020-09-25 09:49:19,293 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8be25c892/3532ba9f3eae483aa591acc9c82c9bf9
[2020-09-25 09:49:19,307 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:49:19,313 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:49:19,314 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:19,314 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:49:19,319 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:49:19,320 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,325 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:19, skipping insertion in model container
[2020-09-25 09:49:19,325 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:19" (1/1) ...
[2020-09-25 09:49:19,334 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:49:19,381 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:49:19,744 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:19,770 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:49:20,026 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:20,064 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:49:20,065 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20 WrapperNode
[2020-09-25 09:49:20,065 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:20,066 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:20,066 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:20,066 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:20,083 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,084 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,104 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,104 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,134 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,145 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,151 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
[2020-09-25 09:49:20,159 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:20,159 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:20,160 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:20,160 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:20,161 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:20,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:20,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:20,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:20,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:20,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:20,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:20,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:20,236 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 09:49:20,237 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:20,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:20,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:20,239 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:20,240 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:20,241 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:20,242 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:20,242 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:20,242 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:20,242 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:20,243 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:20,244 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:20,244 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:20,244 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:20,245 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:20,245 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:20,246 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:20,246 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:49:20,247 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:20,248 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:20,248 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 09:49:20,249 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:20,250 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:21,360 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:21,361 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:21,375 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:21 BoogieIcfgContainer
[2020-09-25 09:49:21,376 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:21,377 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:21,378 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:21,381 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:21,382 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:19" (1/3) ...
[2020-09-25 09:49:21,383 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15d781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:21, skipping insertion in model container
[2020-09-25 09:49:21,383 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:20" (2/3) ...
[2020-09-25 09:49:21,384 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15d781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:21, skipping insertion in model container
[2020-09-25 09:49:21,384 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:21" (3/3) ...
[2020-09-25 09:49:21,388 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c
[2020-09-25 09:49:21,400 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:21,413 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:21,437 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:21,479 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:21,479 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:21,480 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:21,480 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:21,480 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:21,480 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:21,480 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:21,481 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:21,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-25 09:49:21,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:21,552 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:21,554 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:21,554 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:21,563 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:21,564 INFO  L82        PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times
[2020-09-25 09:49:21,575 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:21,577 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918661176]
[2020-09-25 09:49:21,581 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:21,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:22,072 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:22,262 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:23,844 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:26,979 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:26,980 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:26,980 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:26,980 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 09:49:26,984 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:26,984 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:26,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:26,985 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 09:49:26,985 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-25 09:49:26,985 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 09:49:27,521 WARN  L193               SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:27,524 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:27,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:27,645 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:27,918 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:27,918 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:27,918 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:27,919 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 334
[2020-09-25 09:49:27,919 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:27,919 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:27,920 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:27,920 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:27,920 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 09:49:27,921 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,061 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:28,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,064 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,073 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,073 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:28,073 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,074 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:28,074 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,074 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:28,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:28,075 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,077 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:28,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,080 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,083 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,083 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:28,084 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:28,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,084 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:28,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:28,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:28,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,100 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,100 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:28,100 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:28,101 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,101 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:28,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,102 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:28,102 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,104 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:28,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,111 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,111 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:28,111 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,111 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:28,112 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,112 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:28,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:28,113 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,116 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:28,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,119 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,123 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:28,124 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,124 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:28,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,125 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:28,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:28,126 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:28,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,132 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,140 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,140 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:28,140 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,140 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:28,141 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,141 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,141 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:28,141 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:28,142 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:28,142 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:28,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:28,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:28,184 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:28,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:28,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:28,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 09:49:28,185 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:28,185 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:28,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:28,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:28,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:28,186 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:28,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:28,236 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918661176]
[2020-09-25 09:49:28,239 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:28,239 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:28,240 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270342715]
[2020-09-25 09:49:28,251 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:28,253 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:28,278 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:28,279 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:28,283 INFO  L87              Difference]: Start difference. First operand 320 states. Second operand 8 states.
[2020-09-25 09:49:28,911 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:30,655 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:31,027 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:31,420 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:31,856 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:32,164 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:32,472 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:32,783 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:34,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:34,025 INFO  L93              Difference]: Finished difference Result 647 states and 796 transitions.
[2020-09-25 09:49:34,031 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:49:34,033 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:34,034 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:34,056 INFO  L225             Difference]: With dead ends: 647
[2020-09-25 09:49:34,056 INFO  L226             Difference]: Without dead ends: 448
[2020-09-25 09:49:34,063 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
[2020-09-25 09:49:34,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 448 states.
[2020-09-25 09:49:34,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 402.
[2020-09-25 09:49:34,205 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-25 09:49:34,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 457 transitions.
[2020-09-25 09:49:34,210 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 457 transitions. Word has length 153
[2020-09-25 09:49:34,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:34,211 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 457 transitions.
[2020-09-25 09:49:34,211 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:34,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 457 transitions.
[2020-09-25 09:49:34,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 09:49:34,219 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:34,219 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]
[2020-09-25 09:49:34,219 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:34,220 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:34,220 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:34,220 INFO  L82        PathProgramCache]: Analyzing trace with hash -575625334, now seen corresponding path program 1 times
[2020-09-25 09:49:34,220 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:34,221 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235642980]
[2020-09-25 09:49:34,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:34,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:34,338 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:34,657 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:34,658 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 09:49:34,658 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:34,658 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 374
[2020-09-25 09:49:34,659 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:34,659 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:34,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:34,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 09:49:34,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 09:49:34,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:34,960 WARN  L193               SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:34,961 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:34,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:34,978 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,074 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,075 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:35,075 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,075 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,077 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,115 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:35,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,119 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,119 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,120 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,120 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:35,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,123 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,125 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,125 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,126 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,126 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,127 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:35,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,135 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:35,136 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,136 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:35,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,141 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,142 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,143 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:35,143 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,143 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,144 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,144 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,145 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,156 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:35,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,162 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:35,163 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,177 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 09:49:35,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,180 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,183 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 09:49:35,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:35,185 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,185 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:35,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:35,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 09:49:35,186 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,188 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 09:49:35,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,190 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,192 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,192 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,192 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,192 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,193 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,193 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,194 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,195 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 09:49:35,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,197 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,199 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,199 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,199 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,199 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,200 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,200 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,201 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,202 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 09:49:35,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:35,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:35,206 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:35,206 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:35,206 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:35,207 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:35,207 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:35,207 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:35,207 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:35,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:35,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:35,208 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:35,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:49:35,255 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235642980]
[2020-09-25 09:49:35,255 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:35,255 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:35,256 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163559696]
[2020-09-25 09:49:35,258 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:35,259 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:35,259 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:35,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:35,259 INFO  L87              Difference]: Start difference. First operand 402 states and 457 transitions. Second operand 6 states.
[2020-09-25 09:49:35,715 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:37,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:37,176 INFO  L93              Difference]: Finished difference Result 791 states and 975 transitions.
[2020-09-25 09:49:37,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 09:49:37,177 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 09:49:37,178 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:37,189 INFO  L225             Difference]: With dead ends: 791
[2020-09-25 09:49:37,189 INFO  L226             Difference]: Without dead ends: 499
[2020-09-25 09:49:37,193 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 09:49:37,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 499 states.
[2020-09-25 09:49:37,282 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 398.
[2020-09-25 09:49:37,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 398 states.
[2020-09-25 09:49:37,285 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 448 transitions.
[2020-09-25 09:49:37,285 INFO  L78                 Accepts]: Start accepts. Automaton has 398 states and 448 transitions. Word has length 172
[2020-09-25 09:49:37,286 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:37,286 INFO  L479      AbstractCegarLoop]: Abstraction has 398 states and 448 transitions.
[2020-09-25 09:49:37,286 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:37,287 INFO  L276                IsEmpty]: Start isEmpty. Operand 398 states and 448 transitions.
[2020-09-25 09:49:37,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 09:49:37,289 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:37,290 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:37,290 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:37,290 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:37,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:37,291 INFO  L82        PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times
[2020-09-25 09:49:37,291 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:37,291 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121318307]
[2020-09-25 09:49:37,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:37,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:37,366 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:37,366 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:37,371 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:37,399 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:37 BoogieIcfgContainer
[2020-09-25 09:49:37,400 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:37,402 INFO  L168              Benchmark]: Toolchain (without parser) took 18092.86 ms. Allocated memory was 141.6 MB in the beginning and 503.8 MB in the end (delta: 362.3 MB). Free memory was 103.8 MB in the beginning and 176.4 MB in the end (delta: -72.6 MB). Peak memory consumption was 289.6 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,403 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,404 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 751.18 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 175.7 MB in the end (delta: -72.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,405 INFO  L168              Benchmark]: Boogie Preprocessor took 93.30 ms. Allocated memory is still 205.5 MB. Free memory was 175.7 MB in the beginning and 171.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,406 INFO  L168              Benchmark]: RCFGBuilder took 1216.22 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 171.0 MB in the beginning and 175.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,407 INFO  L168              Benchmark]: TraceAbstraction took 16022.40 ms. Allocated memory was 237.5 MB in the beginning and 503.8 MB in the end (delta: 266.3 MB). Free memory was 175.6 MB in the beginning and 176.4 MB in the end (delta: -776.8 kB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:37,411 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 751.18 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 175.7 MB in the end (delta: -72.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 93.30 ms. Allocated memory is still 205.5 MB. Free memory was 175.7 MB in the beginning and 171.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1216.22 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 171.0 MB in the beginning and 175.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16022.40 ms. Allocated memory was 237.5 MB in the beginning and 503.8 MB in the end (delta: 266.3 MB). Free memory was 175.6 MB in the beginning and 176.4 MB in the end (delta: -776.8 kB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L47]               int waterLevel  =    1;
[L48]               int methaneLevelCritical  =    0;
[L136]              int cleanupTimeShifts  =    4;
[L407]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L675]              int pumpRunning  =    0;
[L676]              int systemActive  =    1;
[L215]              int retValue_acc ;
[L216]              int tmp ;
[L220]  FCALL       select_helpers()
[L221]  FCALL       select_features()
[L222]  CALL, EXPR  valid_product()
[L914]              int retValue_acc ;
[L917]              retValue_acc = 1
[L918]              return (retValue_acc);
[L222]  RET, EXPR   valid_product()
[L222]              tmp = valid_product()
[L224]  COND TRUE   \read(tmp)
[L226]  FCALL       setup()
[L227]  CALL        runTest()
[L206]  CALL        test()
[L606]              int splverifierCounter ;
[L607]              int tmp ;
[L608]              int tmp___0 ;
[L609]              int tmp___1 ;
[L610]              int tmp___2 ;
[L613]              splverifierCounter = 0
[L615]  COND TRUE   1
[L617]  COND TRUE   splverifierCounter < 4
[L623]              tmp = __VERIFIER_nondet_int()
[L625]  COND TRUE   \read(tmp)
[L627]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L627]  RET         waterRise()
[L633]              tmp___0 = __VERIFIER_nondet_int()
[L635]  COND FALSE  !(\read(tmp___0))
[L643]              tmp___2 = __VERIFIER_nondet_int()
[L645]  COND TRUE   \read(tmp___2)
[L647]  CALL        startSystem()
[L874]              systemActive = 1
[L647]  RET         startSystem()
[L660]  CALL        timeShift()
[L683]  COND FALSE  !(\read(pumpRunning))
[L690]  COND TRUE   \read(systemActive)
[L692]  CALL        processEnvironment()
[L738]              int tmp ;
[L741]  COND FALSE  !(\read(pumpRunning))
[L756]  CALL        processEnvironment__wrappee__methaneQuery()
[L712]              int tmp ;
[L715]  COND FALSE  !(\read(pumpRunning))
[L730]  FCALL       processEnvironment__wrappee__base()
[L756]  RET         processEnvironment__wrappee__methaneQuery()
[L692]  RET         processEnvironment()
[L698]  CALL        __utac_acc__Specification3_spec__1()
[L924]              int tmp ;
[L925]              int tmp___0 ;
[L926]              int tmp___1 ;
[L930]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L930]  RET, EXPR   isMethaneLevelCritical()
[L930]              tmp = isMethaneLevelCritical()
[L932]  COND FALSE  !(\read(tmp))
[L936]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L936]  RET, EXPR   getWaterLevel()
[L936]              tmp___0 = getWaterLevel()
[L938]  COND TRUE   tmp___0 == 2
[L940]  CALL, EXPR  isPumpRunning()
[L807]              int retValue_acc ;
[L810]              retValue_acc = pumpRunning
[L811]              return (retValue_acc);
[L940]  RET, EXPR   isPumpRunning()
[L940]              tmp___1 = isPumpRunning()
[L942]  COND FALSE  !(\read(tmp___1))
[L946]  CALL        __automaton_fail()
[L883]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 501 SDtfs, 1012 SDslu, 742 SDs, 0 SdLazy, 1618 SolverSat, 348 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=1, 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, 147 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 129048 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...