/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:19:01,533 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:19:01,537 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:19:01,584 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:19:01,585 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:19:01,595 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:19:01,597 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:19:01,601 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:19:01,605 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:19:01,608 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:19:01,609 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:19:01,610 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:19:01,610 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:19:01,613 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:19:01,616 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:19:01,617 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:19:01,619 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:19:01,620 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:19:01,622 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:19:01,628 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:19:01,632 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:19:01,633 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:19:01,634 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:19:01,637 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:19:01,642 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:19:01,642 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:19:01,642 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:19:01,645 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:19:01,646 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:19:01,647 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:19:01,648 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:19:01,649 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:19:01,649 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:19:01,650 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:19:01,651 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:19:01,651 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:19:01,652 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:19:01,652 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:19:01,653 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:19:01,654 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:19:01,655 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:19:01,656 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 14:19:01,706 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:19:01,707 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:19:01,709 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:19:01,709 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:19:01,710 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:19:01,710 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:19:01,710 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:19:01,711 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:19:01,711 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:19:01,711 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:19:01,712 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:19:01,713 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:19:01,713 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:19:01,713 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:19:01,713 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:19:01,714 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:19:01,714 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:19:01,714 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:19:01,714 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:19:01,715 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:19:01,715 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:19:01,715 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:19:01,715 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:19:01,716 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:19:01,716 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:19:01,716 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:19:01,716 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:19:01,716 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:19:01,717 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:19:01,717 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:19:02,222 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:19:02,247 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:19:02,252 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:19:02,254 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:19:02,254 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:19:02,255 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 14:19:02,346 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e45171b84/2cabc991ad41421784464120b2c159c1/FLAG47822e1cc
[2020-09-25 14:19:02,947 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:19:02,948 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 14:19:02,965 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e45171b84/2cabc991ad41421784464120b2c159c1/FLAG47822e1cc
[2020-09-25 14:19:03,239 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e45171b84/2cabc991ad41421784464120b2c159c1
[2020-09-25 14:19:03,259 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:19:03,266 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:19:03,271 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:19:03,271 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:19:03,275 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:19:03,277 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:03" (1/1) ...
[2020-09-25 14:19:03,282 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1957e223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:03, skipping insertion in model container
[2020-09-25 14:19:03,282 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:03" (1/1) ...
[2020-09-25 14:19:03,292 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:19:03,350 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:19:03,864 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:19:03,882 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:19:03,971 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:19:04,008 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:19:04,009 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04 WrapperNode
[2020-09-25 14:19:04,009 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:19:04,010 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:19:04,010 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:19:04,010 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:19:04,025 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,026 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,047 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,047 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,082 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,094 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,100 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
[2020-09-25 14:19:04,108 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:19:04,109 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:19:04,109 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:19:04,109 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:19:04,110 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:19:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:19:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:19:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:19:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:19:04,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:19:04,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:19:04,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:19:04,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:19:04,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:19:04,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:19:04,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:19:04,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:19:04,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:19:04,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:19:04,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:19:04,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:19:04,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:19:04,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:19:04,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:19:04,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:19:04,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:19:04,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:19:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:19:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:19:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:19:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:19:04,194 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:19:04,195 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 14:19:04,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:19:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:19:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:19:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:19:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 14:19:04,197 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:19:04,198 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:19:04,199 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:19:04,200 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:19:04,201 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:19:04,202 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:19:04,202 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:19:04,202 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:19:04,202 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:19:05,398 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:19:05,398 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:19:05,411 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:05 BoogieIcfgContainer
[2020-09-25 14:19:05,412 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:19:05,413 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:19:05,413 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:19:05,418 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:19:05,418 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:03" (1/3) ...
[2020-09-25 14:19:05,419 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1387d8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:05, skipping insertion in model container
[2020-09-25 14:19:05,420 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (2/3) ...
[2020-09-25 14:19:05,420 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1387d8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:05, skipping insertion in model container
[2020-09-25 14:19:05,421 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:05" (3/3) ...
[2020-09-25 14:19:05,423 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c
[2020-09-25 14:19:05,436 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:19:05,450 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:19:05,475 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:19:05,517 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:19:05,517 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:19:05,517 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:19:05,517 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:19:05,518 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:19:05,518 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:19:05,518 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:19:05,519 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:19:05,562 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 14:19:05,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:19:05,601 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:05,603 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:19:05,603 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:05,615 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:05,616 INFO  L82        PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times
[2020-09-25 14:19:05,628 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:05,629 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095584902]
[2020-09-25 14:19:05,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:06,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:06,139 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:06,389 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:07,920 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:11,030 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:11,030 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:19:11,030 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:19:11,031 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5002
[2020-09-25 14:19:11,035 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:11,036 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:11,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:19:11,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:19:11,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 14:19:11,037 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 14:19:11,535 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:19:11,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:19:11,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:11,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:11,915 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:11,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:19:11,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:11,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 321
[2020-09-25 14:19:11,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:11,917 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:11,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:11,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:11,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:19:11,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:11,990 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:19:11,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:11,992 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:11,996 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:11,997 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:11,997 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:11,997 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:19:11,997 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:11,998 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:11,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:11,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:11,999 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:11,999 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,001 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:19:12,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,007 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,007 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:12,007 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,008 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:19:12,008 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,008 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:12,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:12,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:12,009 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,011 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:19:12,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,015 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,022 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,023 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:12,023 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,023 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:19:12,023 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,024 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:12,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:12,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:12,025 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,027 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:19:12,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,029 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,033 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,033 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:12,033 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,034 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:19:12,034 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,034 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:12,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:12,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:12,036 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,037 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:19:12,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,040 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,042 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:12,043 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:12,044 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,044 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:12,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:19:12,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:12,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,047 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:19:12,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,049 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,052 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,052 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:12,052 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,052 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:12,053 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,053 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:12,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:19:12,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:12,054 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,056 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:19:12,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:12,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:12,061 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:12,061 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:12,061 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:12,061 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:12,062 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:12,062 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:12,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:12,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:19:12,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:12,063 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:12,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:19:12,128 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095584902]
[2020-09-25 14:19:12,130 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:19:12,130 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:19:12,131 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493637514]
[2020-09-25 14:19:12,138 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:19:12,139 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:19:12,156 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:19:12,157 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:19:12,160 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 4 states.
[2020-09-25 14:19:12,791 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:14,840 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:14,840 INFO  L93              Difference]: Finished difference Result 623 states and 756 transitions.
[2020-09-25 14:19:14,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:19:14,844 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:19:14,845 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:14,869 INFO  L225             Difference]: With dead ends: 623
[2020-09-25 14:19:14,869 INFO  L226             Difference]: Without dead ends: 438
[2020-09-25 14:19:14,876 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:19:14,895 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-25 14:19:15,015 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370.
[2020-09-25 14:19:15,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 370 states.
[2020-09-25 14:19:15,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions.
[2020-09-25 14:19:15,025 INFO  L78                 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153
[2020-09-25 14:19:15,026 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:15,026 INFO  L479      AbstractCegarLoop]: Abstraction has 370 states and 411 transitions.
[2020-09-25 14:19:15,026 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:19:15,026 INFO  L276                IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions.
[2020-09-25 14:19:15,033 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:19:15,033 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:15,034 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:19:15,034 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:19:15,034 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:15,035 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:15,035 INFO  L82        PathProgramCache]: Analyzing trace with hash -451969796, now seen corresponding path program 1 times
[2020-09-25 14:19:15,035 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:15,036 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914618648]
[2020-09-25 14:19:15,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:15,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:15,155 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:15,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:18,419 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:18,420 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:19:18,420 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:19:18,420 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3322
[2020-09-25 14:19:18,420 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:18,420 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:18,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:19:18,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 14:19:18,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 104
[2020-09-25 14:19:18,421 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:18,771 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:19:18,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:19:18,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:18,840 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,043 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:19:19,044 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,044 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 237
[2020-09-25 14:19:19,044 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,045 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 14:19:19,046 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:19:19,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,096 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,099 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,099 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:19,100 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:19,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,101 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,102 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,102 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:19,102 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,104 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:19:19,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,109 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,110 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:19,110 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,110 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:19,110 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,111 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:19,111 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:19:19,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,124 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:19,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:19:19,125 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,125 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:19,126 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:19:19,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,133 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,133 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:19,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:19,134 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,134 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:19,135 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,148 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:19:19,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,155 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,155 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:19:19,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:19:19,156 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,156 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:19:19,157 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,160 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:19:19,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:19,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:19:19,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:19,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:19,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:19:19,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,169 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:19,172 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,172 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:19,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,173 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:19,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:19,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,176 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:19:19,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,185 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,185 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:19,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:19:19,186 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,186 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:19:19,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:19,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:19,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,227 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:19:19,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:19,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:19,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:19,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:19,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:19,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:19,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:19,232 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:19,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:19,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:19:19,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:19,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:19,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:19:19,271 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914618648]
[2020-09-25 14:19:19,272 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:19:19,272 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:19:19,272 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812908388]
[2020-09-25 14:19:19,275 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:19:19,275 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:19:19,275 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:19:19,276 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:19:19,276 INFO  L87              Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 10 states.
[2020-09-25 14:19:19,856 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:22,086 WARN  L193               SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:19:22,689 WARN  L193               SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:19:23,080 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:23,450 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:19:23,824 WARN  L193               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:24,294 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:19:24,648 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:19:25,087 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:26,464 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:26,464 INFO  L93              Difference]: Finished difference Result 1089 states and 1408 transitions.
[2020-09-25 14:19:26,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:19:26,465 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:19:26,467 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:26,477 INFO  L225             Difference]: With dead ends: 1089
[2020-09-25 14:19:26,477 INFO  L226             Difference]: Without dead ends: 782
[2020-09-25 14:19:26,483 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:19:26,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 782 states.
[2020-09-25 14:19:26,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 603.
[2020-09-25 14:19:26,633 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 603 states.
[2020-09-25 14:19:26,637 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 687 transitions.
[2020-09-25 14:19:26,638 INFO  L78                 Accepts]: Start accepts. Automaton has 603 states and 687 transitions. Word has length 162
[2020-09-25 14:19:26,638 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:26,639 INFO  L479      AbstractCegarLoop]: Abstraction has 603 states and 687 transitions.
[2020-09-25 14:19:26,639 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:19:26,639 INFO  L276                IsEmpty]: Start isEmpty. Operand 603 states and 687 transitions.
[2020-09-25 14:19:26,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 14:19:26,645 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:26,646 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:19:26,646 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:26,646 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:26,647 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:26,647 INFO  L82        PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times
[2020-09-25 14:19:26,647 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:26,647 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228877315]
[2020-09-25 14:19:26,648 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:26,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:26,723 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:26,723 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:26,729 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:26,759 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:26 BoogieIcfgContainer
[2020-09-25 14:19:26,759 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:26,762 INFO  L168              Benchmark]: Toolchain (without parser) took 23501.02 ms. Allocated memory was 147.8 MB in the beginning and 542.6 MB in the end (delta: 394.8 MB). Free memory was 103.2 MB in the beginning and 281.2 MB in the end (delta: -178.0 MB). Peak memory consumption was 216.8 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,763 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,764 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 738.86 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 102.5 MB in the beginning and 171.1 MB in the end (delta: -68.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,765 INFO  L168              Benchmark]: Boogie Preprocessor took 98.18 ms. Allocated memory is still 203.9 MB. Free memory was 171.1 MB in the beginning and 167.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,766 INFO  L168              Benchmark]: RCFGBuilder took 1303.17 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 171.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,767 INFO  L168              Benchmark]: TraceAbstraction took 21346.21 ms. Allocated memory was 235.9 MB in the beginning and 542.6 MB in the end (delta: 306.7 MB). Free memory was 171.6 MB in the beginning and 281.2 MB in the end (delta: -109.6 MB). Peak memory consumption was 197.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:26,771 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 738.86 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 102.5 MB in the beginning and 171.1 MB in the end (delta: -68.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 98.18 ms. Allocated memory is still 203.9 MB. Free memory was 171.1 MB in the beginning and 167.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1303.17 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 171.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 21346.21 ms. Allocated memory was 235.9 MB in the beginning and 542.6 MB in the end (delta: 306.7 MB). Free memory was 171.6 MB in the beginning and 281.2 MB in the end (delta: -109.6 MB). Peak memory consumption was 197.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L89]               int pumpRunning  =    0;
[L90]               int systemActive  =    1;
[L356]              int waterLevel  =    1;
[L357]              int methaneLevelCritical  =    0;
[L445]              int cleanupTimeShifts  =    4;
[L753]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L518]              int retValue_acc ;
[L519]              int tmp ;
[L523]  FCALL       select_helpers()
[L524]  FCALL       select_features()
[L525]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L525]  RET, EXPR   valid_product()
[L525]              tmp = valid_product()
[L527]  COND TRUE   \read(tmp)
[L529]  FCALL       setup()
[L530]  CALL        runTest()
[L512]  CALL        test()
[L287]              int splverifierCounter ;
[L288]              int tmp ;
[L289]              int tmp___0 ;
[L290]              int tmp___1 ;
[L291]              int tmp___2 ;
[L294]              splverifierCounter = 0
[L296]  COND TRUE   1
[L298]  COND TRUE   splverifierCounter < 4
[L304]              tmp = __VERIFIER_nondet_int()
[L306]  COND TRUE   \read(tmp)
[L308]  CALL        waterRise()
[L374]  COND TRUE   waterLevel < 2
[L375]              waterLevel = waterLevel + 1
[L308]  RET         waterRise()
[L314]              tmp___0 = __VERIFIER_nondet_int()
[L316]  COND FALSE  !(\read(tmp___0))
[L324]              tmp___2 = __VERIFIER_nondet_int()
[L326]  COND FALSE  !(\read(tmp___2))
[L332]              tmp___1 = __VERIFIER_nondet_int()
[L334]  COND TRUE   \read(tmp___1)
[L336]  CALL        stopSystem()
[L263]  COND FALSE  !(\read(pumpRunning))
[L270]              systemActive = 0
[L336]  RET         stopSystem()
[L343]  CALL        timeShift()
[L97]   COND FALSE  !(\read(pumpRunning))
[L104]  COND FALSE  !(\read(systemActive))
[L112]  CALL        __utac_acc__Specification3_spec__1()
[L551]              int tmp ;
[L552]              int tmp___0 ;
[L553]              int tmp___1 ;
[L557]  CALL, EXPR  isMethaneLevelCritical()
[L395]              int retValue_acc ;
[L398]              retValue_acc = methaneLevelCritical
[L399]              return (retValue_acc);
[L557]  RET, EXPR   isMethaneLevelCritical()
[L557]              tmp = isMethaneLevelCritical()
[L559]  COND FALSE  !(\read(tmp))
[L563]  CALL, EXPR  getWaterLevel()
[L427]              int retValue_acc ;
[L430]              retValue_acc = waterLevel
[L431]              return (retValue_acc);
[L563]  RET, EXPR   getWaterLevel()
[L563]              tmp___0 = getWaterLevel()
[L565]  COND TRUE   tmp___0 == 2
[L567]  CALL, EXPR  isPumpRunning()
[L196]              int retValue_acc ;
[L199]              retValue_acc = pumpRunning
[L200]              return (retValue_acc);
[L567]  RET, EXPR   isPumpRunning()
[L567]              tmp___1 = isPumpRunning()
[L569]  COND FALSE  !(\read(tmp___1))
[L573]  CALL        __automaton_fail()
[L545]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 486 SDtfs, 948 SDslu, 814 SDs, 0 SdLazy, 1858 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred 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, 247 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140987 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...